Abstract:
BACKGROUND:Increasing evidence suggests that many neurons may die through apoptosis in Alzheimer's disease (AD). Mitochondrial dysfunction has been implicated in this process of neuronal cell death. One promising approach for preventing AD is based upon anti-apoptosis to decrease death of nerve cells. In this study, we observed the memory improving properties of curcumin in mice and investigated the neuroprotective effect of curcumin in vitro and in vivo. METHODS:The mice were given AlCl(3) orally and injections of D-galactose intraperitoneally for 90 days to establish the AD animal model. From day 45, the curcumin group was treated with curcumin for 45 days. Subsequently, the step-through test, neuropathological changes in the hippocampus and the expression of Bax and Bcl-2 were carried out to evaluate the effect of curcumin on the AD model mice. In cultured PC12 cells, AlCl(3) exposure induced apoptosis. The MTT assay was used to measure cell viabilities; flow cytometric analysis to survey the rate of cell apoptosis; DNA-binding fluorochrome Hoechst 33258 to observe nuclei changes in apoptotic cells and Western blot analysis of Bax, Bcl-2 to investigate the mechanisms by which curcumin protects cells from toxicity. RESULTS:Curcumin significantly improved the memory ability of AD mice in the step-through test, as indicated by the reduced number of step-through errors (P < 0.05) and prolonged step-through latency (P < 0.05). Curcumin also attenuated the neuropathological changes in the hippocampus and inhibited apoptosis accompanied by an increase in Bcl-2 level (P < 0.05), but the activity of Bax did not change (P > 0.05). AlCl(3) significantly reduced the viability of PC12 cells (P < 0.01). Curcumin increased cell viability in the presence of AlCl(3) (P < 0.01). The rate of apoptosis decreased significantly in the curcumin group (P < 0.05) when measured by flow cytometric analysis. Curcumin protected cells by increasing Bcl-2 level (P < 0.05), but the level of Bax did not change (P > 0.05). CONCLUSIONS:This study demonstrates that curcumin improves the memory ability of AD mice and inhibits apoptosis in cultured PC12 cells induced by AlCl(3). Its mechanism may involve enhancing the level of Bcl-2.
journal_name
Chin Med J (Engl)journal_title
Chinese medical journalauthors
Pan R,Qiu S,Lu DX,Dong Jsubject
Has Abstractpub_date
2008-05-05 00:00:00pages
832-9issue
9eissn
0366-6999issn
2542-5641journal_volume
121pub_type
杂志文章abstract::The imaging quality of the portal vein was obviously improved with prostaglandin E1 (PGE1) indirect portal vein digital subtraction angiography (DSA) in 23 cases. The time-density curve showed that the occurrence rate of opposite hepatic blood flow of splenic vein (SV) was the highest (17.4%). The total visualization ...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:1995-05-01 00:00:00
abstract:BACKGROUND:The potential benefit of arthroscopic surgery for osteoarthritic knee associated with medial meniscus tear is controversial. This study was conducted to determine the effect of pre-operative medial meniscus extrusion (MME) on arthroscopic surgery outcomes in the osteoarthritic knee associated with medial men...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:10.1097/CM9.0000000000000492
更新日期:2019-11-05 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::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: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:OBJECTIVES:To formulate an equation for fine mapping of disease loci under complex conditions and determine the marker-disease distance in a specific case using this equation. METHODS:Lewontin's linkage disequilibrium (LD) measure D' was used to formulate an equation for mapping disease genes in the presence of phenoc...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2002-08-01 00:00:00
abstract:BACKGROUND:Low molecular weight heparin (LMWH), as one of anticoagulant drugs, has been used for the treatment of chronic obstructive pulmonary disease (COPD) with prethrombotic state, but the specific use time is unclear. The aim of the study is to observe the effect of LMWH at two different periods of prethrombotic s...
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 evaluate the efficacy and the mechanism of application of selective head cooling on neuronal morphological damage during postischemic reperfusion in a rabbit model. METHODS:168 New Zealand rabbits were randomized into three groups. Group I [n = 24, (38 +/- 0.5) degrees C, non-ischemic control]; Group II [...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2002-01-01 00:00:00
abstract:BACKGROUND:Leber congenital amaurosis (LCA) is a visual disease which is caused by RPE65 mutations and results in retinal degeneration and severe vision loss in early infancy. According to previous researches, mutations of the RPE65 gene account for 16% of all cases of LCA. This study aimed to identify RPE65 gene mutat...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:10.4103/0366-6999.218007
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journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2009-11-20 00:00:00
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journal_title:Chinese medical journal
pub_type: 杂志文章
doi:10.4103/0366-6999.207471
更新日期:2017-06-20 00:00:00
abstract:BACKGROUND:Hamstring (HS) autograft and bone-patellar tendon-bone allograft are the most common choice for reconstruction of anterior cruciate ligament (ACL). There was a little report about the clinical outcome and difference of arthroscopic ACL reconstruction using allograft and autograft. This study aimed to compare...
journal_title:Chinese medical journal
pub_type: 杂志文章,随机对照试验
doi:10.4103/0366-6999.170265
更新日期:2015-12-05 00:00:00
abstract::Using the electrophoretic method, the changes in the catalytic activities of three CK-MM isoforms in multiple sequential serum samples of 12 patients with acute myocardial infarction (AMI) were monitored for 3 days after the onset of chest pain. In post-AMI period, MM3 reached a peak (518.6 U/L) first, on the average ...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:1993-06-01 00:00:00
abstract:BACKGROUND:Cross-sectional area (CSA) for small pulmonary vessels is considered a parameter of pulmonary vessel alterations in patients with chronic obstructive pulmonary disease. This study was to evaluate the correlation of CSA with airflow obstruction parameters in asthma. Furthermore, we aimed to measure the differ...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:10.1097/CM9.0000000000000367
更新日期:2019-08-20 00:00:00
abstract:BACKGROUND:Screening for amblyopia at earliest is important for early treatment and better prognosis. This study aimed to evaluate the validity of uncorrected distant and near visual acuity (VA) and stereoacuity for screening amblyopia in grade-1 students in primary school in central China. METHODS:By stratified clust...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2013-03-01 00:00:00
abstract:BACKGROUND:Sinus of Valsalva aneurysm (SVA) is a rare anomaly and few large or long-term series are well established. This study was designed to review 33-year surgical experience of SVA in one center. METHODS:From August 1980 to December 2013, patients with SVA underwent surgical repair were retrospectively studied. ...
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 investigate an method for hepatic differentiation from embryonic stem cells (ES cells) in vitro and the resulting differentiation ratio, in order to develop a procedure for producing a new type of hepatocyte for hepatocyte replacement therapy in the treatment of liver failure. METHODS:ES cells from Balb/C...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2003-12-01 00:00:00
abstract:BACKGROUND:Hirayama disease is a rare disease characterized by juvenile-onset of asymmetric amyotrophy, of which etiology has not been clarified. The aim of our study was to investigate the clinical and neurophysiologic characteristics of Hirayama disease. METHODS:Neurophysiological tests, including nerve conduction s...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2012-03-01 00:00:00
abstract::The results of 31 cases of sutureless esophagogastrostomy by intraluminal elastic circular ligation (IECL) with the biodegradable supporting tube were reported. The fate of the supporting tube could be tracked satisfactorily by X-ray. The tube-dislodge time was 15.03 +/- 2.23 days and unaffected by the size of support...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:1995-10-01 00:00:00
abstract:BACKGROUND:In many studies, obstructive sleep apnea (OSA) has been shown to be an independent risk factor for cardiovascular disease. Conversely, there are few reports establishing possible relation between OSA and venous thromboembolism (VTE). In this study, the aim is to evaluate OSA via polysomnography in patients w...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2012-10-01 00:00:00
abstract::Total or near-total fertilization failure after intracytoplasmic sperm injection (ICSI) is a rare event, but it occurs repeatedly because of sperm defects in activating oocyte. The case presents a successful pregnancy and live birth after calcium ionophore A23187 (A23187) activation on one-day-old unfertilized oocytes...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2012-02-01 00:00:00
abstract:BACKGROUND:Candidal esophagitis is the primary infection among all digestive tract opportunistic ones in acquired immunodeficiency syndrome (AIDS) cases. X-ray manifestation reports of it are still rare. This study aimed to conduct a retrospective analysis on the X-ray data of 6 AIDS cases complicated with candidal eso...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2011-04-01 00:00:00
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journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2013-01-01 00:00:00
abstract:BACKGROUND:The present study was undertaken to replicate the associations of representative polymorphisms in three genes (complement factor H (CFH), complement factor B (BF) and HtrA serine peptidase 1 (HTRA1)) with exudative age-related macular degeneration (AMD) in a Han Chinese population, and to test if the modifia...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2008-12-20 00:00:00
abstract:BACKGROUND:Nucleostemin is essential for the proliferation and survival of stem and cancer cells, but it is unknown whether this newly identified molecule is involved in prostate cancer pathogenesis. METHODS:Total RNA and protein were extracted from prostate cancer tissues and PC-3, LNCap and DU145 cell lines. The nuc...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2008-02-20 00:00:00
abstract:OBJECTIVE:To investigate the relationship between angiotensin-converting enzyme (ACE) gene insertion/deletion polymorphism and the clinico-pathological manifestations in patients with immunoglobulin nephropathy (IgAN). METHODS:A flanking primer pair and an insertion-specific primer pair were used to perform two polyme...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:1997-07-01 00:00:00
abstract:BACKGROUND:Prostate specific membrane antigen (PSMA) can facilitate the growth, migration, and invasion of the LNCaP prostate cancer cell lines, but the underlying molecular mechanisms have not yet been clearly defined. Here, we investigated whether PSMA serves as a novel regulator of the phosphatidylinositol 3-kinase ...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2014-01-01 00:00:00
abstract:BACKGROUND:Borderline gastrointestinal stromal tumors (GISTs) are intermediate tumors between benign and malignant variants; however, the clinical and pathological features of borderline GISTs remain poorly defined. This study aimed to characterize GISTs and to identify a set of borderline criteria for practical use. ...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2010-09-01 00:00:00
abstract::Osteoarthritis (OA) models in bipedal rats were used to study the immune response, including the changes of IgG, antibody dependent cytotoxicity tests toward articular chondrocytes and the matrix. The results revealed significant difference between the bipedal and the quadruped rats. Immunological studies have proved ...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:1991-03-01 00:00:00
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journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2014-01-01 00:00:00