Abstract:
BACKGROUND:Chronic obstructive pulmonary disease (COPD) is thought to be an inflammatory immune response disease. In most cases, the disease is caused by cigarette smoke, but it has been demonstrated that only 10% to 20% of smokers will definitely suffer from COPD. Dendritic cells (DCs) are considered to be the promoter of immune responses. However, the underlying mechanisms involved are still unrevealed. In this study, we aimed to investigate the quantitative differentiation of pulmonary DC in smokers with or without COPD to explore the possible role of DCs in smokers suffering COPD. METHODS:Peripheral lung specimens from non-smokers without airflow obstruction (control group, n = 7), smokers without airflow obstruction (smoker group, n = 7) and patients with COPD (COPD group, n = 7) were investigated to detect the quantity of S-100 and CD1a positive cells by immunohistochemical or immunofluorescent assay. RESULTS:In smokers with COPD, the number of S-100(+) DCs was higher than in the controls and smokers without COPD (P < 0.01 and P < 0.05) and there was a higher number of S-100(+) DCs in smokers with COPD than in smokers without COPD, but without a significant difference (P > 0.05). An inverse correlation was found between the number of DCs and forced expiratory volume in the first second (FEV(1))% pred (r = -0.75, P < 0.05), which was also found between the number of DCs and FEV(1)/forced vital capacity (FVC) (r = -0.72, P < 0.05). The mean number of CD1a(+) DCs, increased from non-smokers to non-COPD smokers to COPD patients, with significant differences between each group (P < 0.01). CONCLUSIONS:The quantity of DCs significantly increased in smokers with COPD compared with non-smokers or smokers without COPD. The results suggest that DCs may play an important role in the pathogenesis of smoking-induced COPD, and the upregulation of DCs may be a potential maker to identify the smokers who have more liability to suffer from COPD.
journal_name
Chin Med J (Engl)journal_title
Chinese medical journalauthors
Su YW,Xu YJ,Liu XSsubject
Has Abstractpub_date
2010-06-01 00:00:00pages
1500-4issue
12eissn
0366-6999issn
2542-5641journal_volume
123pub_type
杂志文章abstract:OBJECTIVE:To analyse the relationship between age and treatment with captopril after acute myocardial infarction (AMI). METHODS:In a randomized trial, 822 patients with a first AMI received conventional medical treatment, including intravenous thrombolytic therapy and oral aspirin or metoprolol, and then were randomly...
journal_title:Chinese medical journal
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:2001-07-01 00:00:00
abstract:OBJECTIVE:To detect 3 kinds of N-ras mutations in Chinese patients with acute myeloid leukemia (AML). METHODS:In vitro DNA amplification followed by oligonucleotide dot analysis were used to study N-ras gene mutations in 43 cases of acute myeloid leukemia (AML). 25 healthy people were used as controls. Patients were s...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:1998-04-01 00:00:00
abstract::A patient with both a femoral attachment injury (peel-off injury) and musculotendinous junction avulsion of the popliteus, a so-called “floating popliteus tendon injury”, received arthroscopy-assisted popliteus reconstruction. The injured ligaments were addressed in the same procedure, including mini-open direct repai...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2011-12-01 00:00:00
abstract:OBJECTIVE:To isolate and clone the tumor suppressor gene on chromosomal region 7q32 correlated with the carcinogenesis of human nasopharyngeal carcinoma (NPC). METHODS:The genotypes of polymorphic microsatellite markers on 7q32 in DNA from 24 biopsies of nasopharyngeal carcinoma and matched normal blood cells were ide...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2000-07-01 00:00:00
abstract:BACKGROUND:Primary percutaneous coronary intervention (PCI) is the best treatment of choice for acute ST segment elevation myocardial infarction (STEMI). This study aimed to determine the clinical outcomes of tirofiban combined with the low molecular weight heparin (LMWH), dalteparin, in primary PCI patients with acute...
journal_title:Chinese medical journal
pub_type: 杂志文章,随机对照试验
doi:
更新日期:2011-10-01 00:00:00
abstract:BACKGROUND:Total knee arthroplasty (TKA) may be associated with serious complications that adversely affect outcomes and increase the likelihood of disability. However, few studies with sufficient sample size have reported postoperative complications following TKA among Chinese patients. This study aimed to evaluate co...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:10.4103/0366-6999.213071
更新日期:2017-11-05 00:00:00
abstract::Selective ablation of slow pathway by radiofrequency (RF) current in 34 patients with atrioventricular (AV) node pathways and tachycardia was performed with two methods in our section; posterior approach was used in the first 12 patients, the slow pathways were ablated successfully. Inferior approach was performed in ...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:1994-08-01 00:00:00
abstract:BACKGROUND:Occult stress urinary incontinence may lead to de novo stress urinary incontinence after pelvic floor repair surgery. A measurement of pudendal nerve terminal motor latency can reflect the integrity of the nerves. We aimed to explore the value of pudendal nerve terminal motor latency in the diagnosis of occu...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2011-12-01 00:00:00
abstract:BACKGROUND:Atypical meningioma is one of the rare subtypes of meningioma, which is lacking of optimal consensus on treatment strategies. This study aimed to investigate the radical treatment strategies to improve the long-term outcome of recurrent atypical meningiomas. METHODS:The prognostic factors including the age ...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2011-08-01 00:00:00
abstract:BACKGROUND:Phosphorous magnetic resonance spectroscopy ((31)P-MRS) has been successfully applied to study intracellular membrane compounds and high-energy phosphate metabolism. This study aimed to evaluate the capability of dynamic (31)P-MRS for assessing energy metabolism and mitochondrial function in skeletal muscle ...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2012-01-01 00:00:00
abstract:BACKGROUND:The purpose of this study was to investigate the feasibility of avoiding axillary lymph node dissection (ALND) for patients with only one sentinel lymph node (SLN) metastasis. The characteristics and predictive factors for non-sentinel lymph node (NSLN) metastasis of patients with single positive SLN were al...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2013-02-01 00:00:00
abstract:OBJECTIVE:To assess the feasibility of detecting SYT-SSX fusion transcripts in paraffin-embedded tissues of synovial sarcoma by reverse transcription-polymerase chain reaction (RT-PCR). METHODS:RT-PCR was used to amplify the SYT-SSX fusion transcripts using archival formalin-fixed paraffin-embedded tumor specimens fro...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2002-07-01 00:00:00
abstract:BACKGROUND:Visfatin, a visceral fat-derived adipocytokine, plays a significant physiological function in lipid metabolism. However, the precise function of visfatin and its regulation by thyroid hormones are still unknown. This study observed the plasma visfatin concentrations in subjects with hyperthyroidism and hypot...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2012-03-01 00:00:00
abstract:BACKGROUND:Colloid carcinomas of the pancreas have better prognosis than ordinary ductal adenocarcinoma, and preoperative distinction of colloid carcinoma from other pancreatic tumors is valuable for patient therapeutic planning and prognosis assessment. However, data about CT features of colloid carcinoma are very lim...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2010-05-20 00:00:00
abstract:OBJECTIVE:To investigate the efficacy of continuous renal replacement therapy (CRRT) versus intermittent hemodialysis (IHD) in patients with severe acute renal failure (ARF). METHODS:One hundred and ninety-three severe ARF patients who received renal support between December 1978 and December 1998 were involved in thi...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2001-11-01 00:00:00
abstract:BACKGROUND:Subcapital femoral neck fracture in young adults has many complications, and the incidence is increasing year-by-year. The selection of the proper operation method to avoid them is an ambiguous matter. This study aimed to evaluate the treatment effect of subcapital femoral neck fracture by the capsulotomy an...
journal_title:Chinese medical journal
pub_type: 杂志文章,随机对照试验
doi:10.4103/0366-6999.151092
更新日期:2015-02-20 00:00:00
abstract:BACKGROUND:Serum expression of cytokines may provide information about the clinical outcome of advanced non-small cell lung cancer (NSCLC) patients. This study aimed to investigate the relationship between serum cytokine levels and the clinical outcome of erlotinib treatment in a second or third line setting in patient...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2013-10-01 00:00:00
abstract:OBJECTIVE:To evaluate mice as experimental animals for Chlamydia pneumoniae (C. pneumoniae) infection and investigate the pathogenesis of C. pneumoniae derived pneumonitis. METHODS:Icr mice were inoculated with the C. pneumoniae strain, CWL-029, either intranasally or intravenously. After a single dose inoculation, mi...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2003-03-01 00:00:00
abstract:BACKGROUND:Various experimental and clinical studies have reported on coronary microcirculatory dysfunction ("no-reflow" phenomenon). Nevertheless, pathogenesis and effective treatment are yet to be fully elucidated. This study aimed to measure the intracoronary pressure gradient in the no-reflow artery during emergent...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:10.1097/CM9.0000000000000709
更新日期:2020-04-05 00:00:00
abstract:BACKGROUND:The acetabular teardrop is often used to guide acetabular component placement in total hip arthroplasty (THA). Placing the lower acetabular component aspect at the same level as the lower teardrop edge was assumed to restore the hip center of rotation. Here we radiographically analyzed the relationship betwe...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2014-01-01 00:00:00
abstract:BACKGROUND:Anomalous origin of the left coronary artery from the pulmonary artery (ALCAPA) is a rare but potentially life-threatening congenital heart defect. A retrospective analysis was carried out to elucidate the surgical outcomes of ALCAPA in infants and children using follow-up echocardiography. METHODS:From Sep...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:10.4103/0366-6999.215334
更新日期:2017-10-05 00:00:00
abstract:BACKGROUND:Carotid stenosis is one of the common reasons for patients with ischemic stroke, and the two invasive options carotid endarterectomy (CEA) and carotid artery stenting (CAS) are the most popular treatments. But the relative efficacy and safety of the methods are not clear. METHODS:About 521 articles related ...
journal_title:Chinese medical journal
pub_type: 杂志文章,meta分析
doi:
更新日期:2013-02-01 00:00:00
abstract::Microencapsules for pituitary transplantation was successfully developed with sodium alginate and poly-L-lysine (average molecular weight MW 70,000). The permeability of the capsular membrane (CM) was tested. The results showed that 60% of growth hormone (GH), thyroid stimulating hormone (TSH), prolactin (PRL) have pa...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:1994-03-01 00:00:00
abstract:BACKGROUND:Tenofovir disoproxil (TDF) is a promising salvage therapy for patients with chronic hepatitis B (CHB) who failed regimens of other nucleoside analogues (NAs). In this study, we aimed to investigate the clinical efficacy and safety of TDF monotherapy in Chinese CHB patients with genotypic resistance. METHODS...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:10.4103/0366-6999.204107
更新日期:2017-04-20 00:00:00
abstract:BACKGROUND:Some esophageal cancer patients complicated with depression exhibit cognitive impairments. Frontal electroencephalogram (EEG) may be used as a reliable biomarker for prefrontal-mediated cognitive functions. This study was to investigate alterations of EEG and frontal cognitive impairment in esophageal cancer...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:10.4103/0366-6999.211552
更新日期:2017-08-05 00:00:00
abstract:BACKGROUND:In obscure gastrointestinal (GI) bleeding, it is often difficult to detect the bleeding sites located in the small bowel with conventional radiological, scintigraphic or angiographic techniques. Push enteroscopy and capsule endoscopy are currently considered to be the most effective diagnostic procedures. Th...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2004-07-01 00:00:00
abstract:BACKGROUND:Early detection with screening mammography can potentially reduce breast cancer mortality rates. To achieve an efficient screening, a peer review system provides a compensatory double-check reviewing, will hopefully to prevent the omission of detectable lesions and reduce unnecessary recall. METHODS:In 2009...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2013-01-01 00:00:00
abstract:BACKGROUND:Premature ventricular contractions (PVCs) are common in the general population, and frequent PVCs may result in the poor quality of life or even the damage of cardiac function. We examined the efficacy and safety of a traditional Chinese medicine Wenxin Keli for the treatment of frequent PVCs among a relativ...
journal_title:Chinese medical journal
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.4103/0366-6999.166026
更新日期:2015-10-05 00:00:00
abstract:BACKGROUND:Acute fatty liver of pregnancy (AFLP) is a rare but life-threatening complication occurring in the third trimester. It is often fatal to both mother and fetus. The complicated clinical manifestations as well as an insufficient understanding of the disease make the precise diagnosis and effective treatment of...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:10.4103/0366-6999.181963
更新日期:2016-05-20 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