Abstract：
OBJECTIVE:To study telomerase activity (TA) and its variation in bone marrow mononuclear cells from patients with myelodysplastic syndrome (MDS) at different stages in comparison with normal bone marrow cells and leukemic cells. METHODS:The TA was semi-quantitatively determined in mononuclear cells from 20 normal bone marrow samples, 21 patients with MDS at different stages and 32 cases of acute leukemia by using a polymerase chain reaction-enzyme linked immuno-sorben assay (PCR-ELISA) kit. RESULTS:The TA in normal bone marrow cells was in the range of 0 to 0.3 units (U) with a mean of 0.11 +/- 0.08 U. Among them, 3 samples were considered positive in accordance with the standard recommended by the kit's pamphlet. In bone marrow cells from patients with acute leukemia, the TA was ranging from 0 to 0.96 U with a mean value of 0.42 +/- 0.26 U. The positive rate was 78.1% which was significantly different from that in normal bone marrow (BM) (P < 0.01). In case of myelodysplastic syndrome, the average level of TA was 0.27 +/- 0.19 U (ranging from 0 to 0.97 U) with a positive rate of 66.7%. In comparison with normal BM cells, the difference was significant (P < 0.05). Particularly, the MDS high-risk subgroup exhibited a significantly higher activity of telomerase (P < 0.05). In comparison with INT-1 and INT-2 subgroups in MDS patients based on international prognostic scoring system (IPPS), the difference in TA was also significant (P < 0.05). The abnormality in cell karyotype was not correlated with TA. CONCLUSION:The normal bone marrow cells demonstrate TA at a marginal level while a remarkably increasing level may be seen in acute leukemia patients. The BM cells from MDS patients display a moderate TA among which the high risk MDS subgroup with a poor prognostic IPPS score exhibited markedly higher TA.
journal_name
Chin Med J (Engl)journal_title
Chinese medical journalauthors
Fu C,Chen Zkeywords:
subject
Has Abstractpub_date
2002-10-01 00:00:00pages
1475-8issue
10eissn
0366-6999issn
2542-5641journal_volume
115pub_type
杂志文章abstract：BACKGROUND:Asthma is a heterogeneous disease for which a strong genetic basis has been firmly established. Until now no studies have been undertaken to systemically explore the network of asthma-related genes using an internally developed literature-based discovery approach. This study was to explore asthma-related gen...
journal_title：Chinese medical journal
pub_type： 杂志文章
doi：
更新日期：2013-07-01 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 evaluate the efficacy and safety of misoprostol in term labour induction. DATA SOURCES:Data from published English and Chinese literatures about misoprostol in term labour induction were identified from Medline and CBMdisk (using the search terms "misoprostol" and "labour induction") before 2001; hand sea...
journal_title：Chinese medical journal
pub_type： 杂志文章,meta分析,评审
doi：
更新日期：2004-03-01 00:00:00
abstract：OBJECTIVE:To investigate the significance of telomerase activity in urine in the diagnosis and recurrence surveillance of urothelial carcinoma. METHODS:Telomerase activity in urine of 54 cases of urothelial carcinoma (urothelial carcinoma group) was estimated by polymerase chain reaction-enzyme-linked immunosorbent as...
journal_title：Chinese medical journal
pub_type： 杂志文章
doi：
更新日期：2002-11-01 00:00:00
abstract：Background:Automated peritoneal dialysis (APD) can cater to individual needs, provide treatment while asleep, take into account the adequacy of dialysis, and improve the quality of life. Currently, independent research and development of APD machines made in China are more conducive to patients. A randomized, multicent...
journal_title：Chinese medical journal
pub_type： 杂志文章,多中心研究,随机对照试验
doi：10.4103/0366-6999.246079
更新日期：2018-12-05 00:00:00
abstract：BACKGROUND:Many studies suggest that the gamma irradiation decreases allograft strength in a dose-dependent manner. However, no study has demonstrated that this decrease in strength translates into higher failure rate in meniscal allograft transplantation (MAT). The aim of this study was to investigate the effects of g...
journal_title：Chinese medical journal
pub_type： 杂志文章
doi：10.4103/0366-6999.156784
更新日期：2015-05-20 00:00:00
abstract：OBJECTIVE:Renal fibrosis is the most common manifestation of chronic kidney disease (CKD). Noting that existing treatments of renal fibrosis only slow disease progression but do not cure it, there is an urgent need to identify novel therapies. Hydrogen sulfide (H2S) is a newly discovered endogenous small gas signaling ...
journal_title：Chinese medical journal
pub_type： 杂志文章,评审
doi：10.1097/CM9.0000000000000537
更新日期：2019-12-05 00:00:00
abstract：BACKGROUND:Jaw osteonecrosis possibly associated with the administration of bisphosphonates is expected to be treated with a non-pharmacologic approach. This study aimed to determine whether noninvasive, mechanically mediated vibration would inhibit the decline in bone mineral density (BMD) that follows menopause, enha...
journal_title：Chinese medical journal
pub_type： 杂志文章
doi：
更新日期：2008-07-05 00:00:00
abstract：:Klinefelter’s syndrome (KS) is the most common sex chromosome disease in men. Classical features of the syndrome include a eunuchoidal body habitus, small testes and hypergonadotrophic hypogonadism. There has been an increased risk of diabetes mellitus and autoimmune disease for KS patients. This paper reports a case ...
journal_title：Chinese medical journal
pub_type： 杂志文章
doi：
更新日期：2012-03-01 00:00:00
abstract：BACKGROUND:Hospital-acquired pneumonia (HAP) is the most common hospital-acquired infection in China with substantial morbidity and mortality. But no specific risk assessment model has been well validated in patients with HAP. The aim of this study was to investigate the published risk assessment models that could pote...
journal_title：Chinese medical journal
pub_type： 杂志文章
doi：10.1097/CM9.0000000000001252
更新日期：2020-12-03 00:00:00
abstract：Background::Localized macular edema and retinal nerve fiber layer (RNFL) thinning have been reported shortly after laser in situ keratomileusis (LASIK) in adults. However, it is still unclear how LASIK affects the retina of children. This study aimed to investigate the macular retina and RNFL thickness in children with...
journal_title：Chinese medical journal
pub_type： 杂志文章
doi：10.4103/0366-6999.213959
更新日期：2017-09-20 00:00:00
abstract：OBJECTIVE:To study the surgical technique and results of laryngeal function preservation in treatment of hypopharyngeal carcinoma. METHODS:A retrospective review of 305 patients with malignant neoplasms of the hypopharynx (279 males, 26 females, age ranging from 14 to 77 years) was performed from 1978 to 1996. In the ...
journal_title：Chinese medical journal
pub_type： 杂志文章
doi：
更新日期：2002-06-01 00:00:00
abstract：OBJECTIVE:To describe the methods which were used to develop collagen-based materials for wound dressing. METHODS:Fresh frozen bovine tendon was treated with 0.05 mol/L acetic acid at pH 3.2 for 48-72 hours, homogenized, filtered, mixed with 8% chondroitin sulphate, for creating a deaerated 1.5%-2.5% collagen solution...
journal_title：Chinese medical journal
pub_type： 杂志文章
doi：
更新日期：2003-03-01 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：BACKGROUND:Continuous interscalene nerve block (CISB) is considered to be the most effective method for postoperative analgesia after shoulder surgery with prolonged severe pain. This study was performed to evaluate the minimum effective background infusion rate and the effective background infusion rate of ropivacaine...
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 clarify whether genetic variants of the renin-angiotensin system (RAS) contribute to the development of diabetic nephropathy (DN) in the Chinese. METHODS:Totally 173 Chinese subjects of Han nationality from Shanghai were classified into! control, DN (-) and DN (+) groups. The latter was subdivided accordi...
journal_title：Chinese medical journal
pub_type： 杂志文章
doi：
更新日期：2000-05-01 00:00:00
abstract：OBJECTIVES:To examine whether the expression of choline acetyltransferase (ChAT), a marker for cholinergic neurons, and growth-associated protein (GAP-43), a marker for synaptogenesis, occurs differently following compression vs. decompression of spinal cord, and whether the reactions have any relationship with the tim...
journal_title：Chinese medical journal
pub_type： 杂志文章
doi：
更新日期：2000-08-01 00:00:00
abstract：OBJECTIVE:To study 4 cases of adult T-cell leukemia/lymphoma (ATLL) associated with cutaneous lesions for clinicopathology, immunophenotype, human T-cell leukemia/lymphoma virus type I (HTLV-I) provirus DNA and their ultrastructure. At the same time, HTLV-I provirus DNA of ATLL patients were also compared with 18 cases...
journal_title：Chinese medical journal
pub_type： 杂志文章
doi：
更新日期：1999-05-01 00:00:00
abstract：BACKGROUND:Adenomyosis is a gynecological disorder with symptoms most presenting as dysmenorrhea and heavy menstrual bleeding. However, the presence of lower urinary tract symptoms (LUTS) among women with adenomyosis remains unclear. This study was designed to determine the prevalence of LUTS and factors related to the...
journal_title：Chinese medical journal
pub_type： 杂志文章
doi：10.4103/0366-6999.208232
更新日期：2017-07-05 00:00:00
abstract：OBJECTIVE:To introduce the imaging characteristics of moyamoya disease (MMD) using high-resolution magnetic resonance imaging (HR-MRI) and to discuss the role of HR-MRI in differentiating MMD from other intracranial artery diseases, especially intracranial atherosclerotic disease (ICAD). DATA SOURCES:This review was b...
journal_title：Chinese medical journal
pub_type： 杂志文章,评审
doi：10.4103/0366-6999.170257
更新日期：2015-12-05 00:00:00
abstract：BACKGROUND:SIRT3 is an important regulator in cell metabolism, and recent studies have shown that it may be involved in the pharmacological effects of metformin. However, the molecular mechanisms underlying this process are unclear. METHODS:The effects of SIRT3 on the regulation of oxidative stress and insulin resista...
journal_title：Chinese medical journal
pub_type： 杂志文章
doi：
更新日期：2014-01-01 00:00:00
abstract：:Dot-ELISA assay was compared with standard Sandwich ELISA in detecting parasite antigen in sera from patients with bancroftian filariasis. The same monoclonal antibody and the same serum samples were used in both assays. With Dot-ELISA, 67 of 70 serum samples from microfilaremic patients were positive at a dilution of...
journal_title：Chinese medical journal
pub_type： 杂志文章
doi：
更新日期：1990-09-01 00:00:00
abstract：OBJECTIVE:To study the expression of vascular endothelial growth factor (VEGF) in different parts of heart during early acute myocardial ischemia. METHODS:The expression of VEGF in control and study group in rats was performed with the Strept Avidin-Biotin-Peroxidase Complex (SABC) method. RESULTS:A rapid expression ...
journal_title：Chinese medical journal
pub_type： 杂志文章
doi：
更新日期：1999-08-01 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:In county-level tuberculosis (TB) dispensaries in China, the accurate diagnosis of sputum smear-negative pulmonary tuberculosis (SNPT) needs to be improved by developing and validating clinical and radiographic predictors. METHODS:The study was conducted simultaneously in three counties per province in Chon...
journal_title：Chinese medical journal
pub_type： 杂志文章
doi：
更新日期：2013-01-01 00:00:00
abstract：OBJECTIVE:To identify novel tumor suppressor genes at chromosome 3p24-26 in human nasopharyngeal carcinoma (NPC). METHODS:Twenty epithelial-derived expressed sequence tags (EST) were selected from chromosome 3p24-26. RT-PCR and Northern blot were used to detect the expression of the ESTs in NPC cell line, HNE-1, and p...
journal_title：Chinese medical journal
pub_type： 杂志文章
doi：
更新日期：2001-05-01 00:00:00
abstract：BACKGROUND:A free running asthma screening test is usually used for screening exercise-induced bronchoconstriction. The total serum allergen IgE level can reveal the patient's atopy characteristics. Our study is to evaluate the diagnostic values of the combination of the two tests in asthmatic children and compare this...
journal_title：Chinese medical journal
pub_type： 杂志文章
doi：
更新日期：2014-01-01 00:00:00
abstract：PURPOSE:To review the current status of multimodality treatment and lymphadenectomy in the management of esophageal cancer. DATA SOURCES:Literature review. STUDY SELECTION:Multimodality treatment and lymphadenectomy in esophageal cancer. DATA EXTRACTION:Results in research papers published selected by literature sea...
journal_title：Chinese medical journal
pub_type： 杂志文章,评审
doi：
更新日期：1997-11-01 00:00:00
abstract：OBJECTIVES:To study the interrelation between nitric oxide (NO) and endothelin-1 (ET1) in experimental acute hypoxic rats, and to evaluate the mechanism of acute hypoxic pulmonary hypertension affected by NO and ET1 and its intervention. METHODS:Nicotinamide adenine dinucleotide phosphate (NADPH) diaphorase histochemi...
journal_title：Chinese medical journal
pub_type： 杂志文章
doi：
更新日期：1999-04-01 00:00:00
abstract：BACKGROUND:Cerebral ischemia-reperfusion injury is the main reason for the loss of neurons in the ischemic cerebrovascular disease. Therefore, to deeply understand its pathogenesis and find a new target is the key issue to be solved. This research aimed to investigate the neuroprotective effects of salvianolic acid B (...
journal_title：Chinese medical journal
pub_type： 杂志文章
doi：
更新日期：2010-12-01 00:00:00
