Abstract:
OBJECTIVE:To detect occult metastases in lymph nodes from patients with colorectal carcinoma and its clinical significance. METHODS:The metastases in 260 lymph nodes from 39 histologically verified colorectal cancer patients were studied by both hematoxylin-eosin (HE) staining and cytokeratin-20 (CK20) specific RT-PCR. Ten normal lymph nodes were served as negative controls, and HT29 colon cancer cell line and 5 colorectal cancer specimens as positive controls. RESULTS:Ten normal lymph nodes were CK20-negative, HT29 cells and 5 tumor specimens were all CK20-positive. All 29 lymph nodes from 16 patients which confirmed metastases by HE staining exhibited CK20 positive expression; an additional 28 lymph nodes from 5 patients with no histologically detectable metastases expressed CK20 mRNA, i.e. presence of metastases. The difference of the positivity was significant (11.1% vs 21.9%, P < 0.01). According to the HE staining, the cases of Dukes' A, B, C and D were 3, 20, 12 and 4, respectively. In the 20 patients of Dukes' B stage, 5 of them had CK20-positive lymph nodes. CONCLUSION:CK20-specific RT-PCR is a highly sensitive, specific and simple method for detecting occult metastases in lymph nodes. The detection of CK20 mRNA expression in lymph nodes is recommended to precisely determine tumor stage and postoperative adjuvant therapy for patients with colorectal cancer, and further studies should be done in future to confirm the findings.
journal_name
Chin Med J (Engl)journal_title
Chinese medical journalauthors
Liu Z,Ye X,Bi W,Wang M,Li Y,Chen Tkeywords:
subject
Has Abstractpub_date
2002-04-01 00:00:00pages
529-31issue
4eissn
0366-6999issn
2542-5641journal_volume
115pub_type
杂志文章abstract:BACKGROUND:As a new electroencephalogram (EEG) signal processing technique for monitoring the depth of anesthesia, entropy consists of two indices: reaction entropy (RE) and state entropy (SE). Our study compared entropy with classical bispectral index (BIS) in reduction of myoelectrical interference and noxious stimul...
journal_title:Chinese medical journal
pub_type: 临床试验,杂志文章,多中心研究
doi:
更新日期:2012-04-01 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::A rare type of annular pancreas, in which the tail of the annular duct is fused with the dorsal pancreatic duct to form the main duct, and its diagnostic imagings of endoscopic retrograde cholangiopancreatography, hypotonic duodenography, computed tomography and ultrasound are described. Annular pancreas is an anomaly...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:1989-05-01 00:00:00
abstract:BACKGROUND:In central precocious puberty (CPP), the pulse secretion and release of gonadotropin-releasing hormone (GnRH) are increased due to early activation of the hypothalamic-pituitary-gonadal axis, resulting in developmental abnormalities with gonadal development and appearance of secondary sexual characteristics....
journal_title:Chinese medical journal
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.4103/0366-6999.156773
更新日期:2015-05-20 00:00:00
abstract:Objective:Acute respiratory distress syndrome (ARDS) is an acute and lethal clinical syndrome that is characterized by the injury of alveolar epithelium, which impairs active fluid transport in the lung, and impedes the reabsorption of edema fluid from the alveolar space. This review aimed to discuss the role of pro-re...
journal_title:Chinese medical journal
pub_type: 杂志文章,评审
doi:10.4103/0366-6999.229890
更新日期:2018-04-20 00:00:00
abstract:BACKGROUND:Oxygen inhalation therapy is essential for the treatment of patients with chronic mountain sickness (CMS), but the efficacy of oxygen inhalation for populations at high risk of CMS remains unknown. This research investigated whether oxygen inhalation therapy benefits populations at high risk of CMS. METHODS...
journal_title:Chinese medical journal
pub_type: 杂志文章,随机对照试验
doi:10.4103/0366-6999.182831
更新日期:2016-06-05 00:00:00
abstract:BACKGROUND:The endovascular treatment of abdominal aortic aneurysm (AAA) has improved greatly in the last 15 years. The present study aimed to evaluate the endografting experience for the treatment of unfavorable abdominal aortic aneurysm (uAAA). METHODS:During December 2001 and December 2007, 41 patients with uAAA we...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2009-04-05 00:00:00
abstract:BACKGROUND:The treatment for long bone defects has been a hot topic in the field of regenerative medicine. This study aimed to evaluate the therapeutic effects of calcium sulfate (CS) combined with platelet-rich plasma (PRP) on long bone defect restoration. METHODS:A radial bone defect model was constructed through an...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:10.4103/0366-6999.176981
更新日期:2016-03-05 00:00:00
abstract:BACKGROUND:Preeclampsia, characterized by hypertension and proteinuria, is a multifactorial disease associated with shallow invasion of trophoblast cells and inadequate spiral artery remodeling. Trophoblast and tumor cells have similar invasion mechanism. Prostasin is closely related to tumor development, invasion and ...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2014-01-01 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:OBJECTIVE:To investigate the protective effect of dl-3-n-butylphthalide (NBP) as an anti-cerebral ischemic drug on brain damage 24 h after closed head injury in mice. METHODS:Closed head injury was induced by dropping a 50-g weight from a height of 18 cm on a metal impounder resting on the parietal bone in mice. RESU...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2000-07-01 00:00:00
abstract:BACKGROUND:Evidence has demonstrated that the distal lung, which includes airways of < 2 mm in diameter and lung parenchyma, constitutes an important component of asthma pathology. Cysteinyl leukotrienes (CysLTs) are potent proinflammatory mediators and bronchoconstrictors involved in the asthmatic process. Guidelines ...
journal_title:Chinese medical journal
pub_type: 杂志文章,随机对照试验
doi:
更新日期:2013-06-01 00:00:00
abstract:BACKGROUND:Mutation or deletion in the phosphatase and tensin homologue deleted on chromosome ten (PTEN) gene has been identified as an important cause of endometrial carcinoma; stromal cell derived factor-1alpha (SDF-1alpha) exerts growth-promoting effects on endometrial cancer cells through activation of the PI-3 kin...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2006-03-05 00:00:00
abstract::A 30-year-old female patient with coexisting ankylosing spondylitis and rheumatoid arthritis was diagnosed and treated. The human leukocyte antigen (HLA)-B27 is a predisposing factor of ankylosing spondylitis and HLA-DR4 is a predisposing factor of rheumatoid arthritis. This patient was HLA-B27 and HLA-DR4 positive, a...
journal_title:Chinese medical journal
pub_type: 杂志文章,评审
doi:
更新日期:2011-10-01 00:00:00
abstract::Lectin binding patterns in psoriasis, lichen planus and seborrheic keratosis lesions were studied using 14 different biotinyl lectins and avidin-horseradish peroxidase. Compared with normal epidermis, there were significant quantitative and qualitative differences, some of which were characteristic. ...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:1992-12-01 00:00:00
abstract:OBJECTIVE:To study whether liver cirrhosis associated with Helicobacter pylori (H. pylori) infection will induce increased serum ammonia and whether the peripheral serum ammonia reflects the level of portal vein serum ammonia. METHODS:Blood was taken from the portal vein and the cubital vein in cirrhotic patients with...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2000-12-01 00:00:00
abstract:Background::Core fucosylation (CF), catalyzed by α-1,6 fucosyltransferase (Fut8) in mammals, plays an important role in pathological processes through posttranslational modification of key signaling receptor proteins, including transforming growth factor (TGF)-β receptors and platelet-derived growth factor (PDGF) recep...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:10.4103/0366-6999.213963
更新日期:2017-09-20 00:00:00
abstract:BACKGROUND:With a type C3 distal radius fracture it is extremely difficult to maintain the reduction and to restore congruity of the articular surface because the support for the volar and dorsal bone cortex has been lost. An external fixator crossing wrist in combination with Kirschner wire (K-wire) fixation was popul...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2009-07-05 00:00:00
abstract:BACKGROUND:Chronic liver disease causes aberrant formation of fibrous tissue that impedes normal liver function, ultimately resulting in liver cirrhosis. Iron uptake can occur within the hepatic parenchyma or within the various nodules that form in a cirrhotic liver, termed siderotic nodules (SN). We aimed to investiga...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2012-09-01 00:00:00
abstract:OBJECTIVE:Physiologic cardiac pacing is a novel technique which has been largely popularized in recent decades. His bundle pacing (HBP) has been long considered the most physiologic pacing method; however, with the widespread implementation of this method, its disadvantages have become apparent. In this context, left b...
journal_title:Chinese medical journal
pub_type: 杂志文章,评审
doi:10.1097/CM9.0000000000000038
更新日期:2019-01-20 00:00:00
abstract:BACKGROUND:The In1.1C single nucleotide polymorphism (SNP) allele results in reduced RANTES transcription, which is associated with increased frequency of HIV-1 infection, and rapid progression to AIDS among HIV-1-infected individuals. This study aimed to study the mutant frequency and polymorphism of RANTES in Chinese...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2009-05-20 00:00:00
abstract:BACKGROUND:Recurrence of hepatitis B-related hepatocellular carcinoma (HCC) after curative resection is the leading factor influencing the prognosis of the disease. Therefore, further improvement of long-term survival may depend on the prevention and treatment of the recurrent tumor. The aim of this research was to inv...
journal_title:Chinese medical journal
pub_type: 临床试验,杂志文章
doi:
更新日期:2013-03-01 00:00:00
abstract:BACKGROUND:As an X-linked recessive way, arginine vasopressin receptor 2 (AVPR2) gene mutation resulted in a hereditary disease - congenital nephrogenic diabetes insipidus (CNDI). We found a suspect clinical CNDI pedigree. In order to identify the genetic etiology, we performed the genetic analysis. METHODS:The clinic...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2014-01-01 00:00:00
abstract::Renal angiomyolipoma is a type of benign tumor that occurs sporadically in addition to being associated with tuberous sclerosis. Preoperative embolization of large tumors is important to avoid excessive blood loss during surgery. We reported a patient with a 5505-g giant renal angiomyolipoma in a solitary kidney. The ...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2011-05-01 00:00:00
abstract:BACKGROUND:Bone morphogenetic protein (BMP) is a member of the superfamily of transforming growth factor-beta. Recent studies show that it is an indispensable factor in hematopoiesis. To better characterize the effect of recombinant human BMP (rhBMP)-2 in hematopoiesis, we set out to determine whether rhBMP-2 could pro...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2009-04-05 00:00:00
abstract:OBJECTIVE:To explore the effects of thyroid hormone (TH) on cardiac function and peripheral lymphocyte beta-adrenoceptors (beta-ARs) of patients with chronic congestive heart failure (CHF). METHODS:Twenty-eight patients with class III or IV advanced CHF due to dilated cardiomyopathy (DCM) or ischemic cardiomyopathy (I...
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:2003-11-01 00:00:00
abstract:BACKGROUND:The aim of this study was to prospectively study the changes in neutrophil elastase (NE), fibroblast growth factor 9 (Fgf9), matrix metalloproteinase-9 (MMP-9), tissue inhibitor of metalloproteinase 1 (TIMP-1) in sputum induced during the early period after lung volume reduction surgery (LVRS). METHODS:From...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2008-09-20 00:00:00
abstract:BACKGROUND:Surgical interventions are the main treatment for primary congenital glaucoma (PCG). This study aimed to compare the efficacy and safety between viscocanalostomy and mitomycin C (MMC)-trabeculectomy in patients with PCG. METHODS:A total number of 43 patients with PCG who underwent either viscocanalostomy (g...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2013-01-01 00:00:00
abstract:BACKGROUND:Gastric varices (GV) are life-threatening for patients with portal hypertension. Endoscopic injection with butyl cyanoacrylate (BC), the mainstay of the therapy for GV, has been reported to be effective for hemostasis of bleeding varices, but its efficacy in the obliteration of GV and impact on the survival ...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2007-12-05 00:00:00
abstract:OBJECTIVE:Parkinson's disease (PD) is featured with motor disorder and nonmotor manifestations including psychological symptoms, autonomic nervous system dysfunction, and paresthesia, which results in great inconvenience to the patients' life. The apolipoprotein (Apo) superfamily, as a group of potentially modifiable b...
journal_title:Chinese medical journal
pub_type: 杂志文章,评审
doi:10.4103/0366-6999.217092
更新日期:2017-11-05 00:00:00