Abstract:
BACKGROUND:One of the reasons for poor neuroregeneration after central nervous system injury is the presence of inhibitory factors such as Nogo. Here, we tested the inhibition of Nogo by RNA interference both in vitro and in vivo, using recombinant adenovirus-mediated transfection of short hairpin RNAs, to explore a new method of treatment for spinal cord injury. METHODS:We designed and cloned two Nogo-specific short hairpin RNAs and an unrelated short hairpin RNA, packaged the clones into adenovirus, and amplified the recombinant virus in 293 cells. We then tested the inhibition of Nogo expression both in vitro in adenovirus-transfected oligodendrocytes and in vivo in spinal cord tissue from adenovirus-transfected spinal cord injury model rats. We tested Nogo expression at the mRNA level by reverse-transcription PCR and at the protein level by Western blotting and immunohistochemistry. RESULTS:In vitro, the two specific Nogo short hairpin RNAs decreased Nogo mRNA expression by 51% and 49%, respectively, compared with Nogo expression in cells transfected with the unrelated control small hairpin RNA (P < 0.005). Similarly, Nogo protein expression decreased by 50% and 48%, respectively (P < 0.005). In vivo, in spinal cord injury model rats, the two specific Nogo short hairpin RNAs decreased Nogo mRNA expression by 45% and 40%, respectively, compared with Nogo expression in spinal cord injury model rats transfected with the unrelated control short hairpin RNA (P < 0.005). The Nogo protein level was similarly decreased. CONCLUSIONS:We were successful in specifically downregulating Nogo at the mRNA and protein levels by adenovirus-mediated delivery of short hairpin RNAs, both in vitro and in vivo. This confirms the effectiveness of RNA interference for the inhibition of Nogo gene expression and the efficiency of using adenovirus for delivery. Thus gene therapy may be an effective treatment for spinal cord injury.
journal_name
Chin Med J (Engl)journal_title
Chinese medical journalauthors
Sun HH,Gao F,Liu B,Yu HT,Kong N,Liu GMsubject
Has Abstractpub_date
2012-11-01 00:00:00pages
4044-8issue
22eissn
0366-6999issn
2542-5641journal_volume
125pub_type
杂志文章abstract:BACKGROUND:Esophageal carcinoma is a common kind of malignant tumor and about 90% of which is esophageal squamous cell carcinoma (ESCC), and it has a high incidence in China. In recent years it has been argued that angiogenesis plays a key role in tumor growth and metastasis and it is a complex process influenced by ma...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2008-05-20 00:00:00
abstract:BACKGROUND:Laser in situ keratomileusis (LASIK) has become an efficient and commonly performed procedure to reduce refractive errors. In order to further increase the postoperative visual quality, the wavefront-guided refractive surgery has been a research hotspot in customized surgery. This study was conducted to comp...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2008-01-20 00:00:00
abstract:: ...
journal_title:Chinese medical journal
pub_type: 信件
doi:10.4103/0366-6999.245261
更新日期:2018-11-20 00:00:00
abstract:BACKGROUND:Acinetobacter baumanii (A. baumanii ) remains an important microbial pathogen resulting in nosocomial acquired infections with significant morbidity and mortality. The mechanism by which nosocomial bacteria, like A. baumanii, attain multidrug resistance to antibiotics is of considerable interest. The aim in ...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2010-09-01 00:00:00
abstract::An ovarian gynandroblastoma was found in a 59-year-old woman. The tumor consisting of mixed Sertoli-Leydig cells and granulosa-theca cells demonstrated no malignant features. Bisexual cells in gynandroblastoma derived from a common gonadal mesenchyme precursor or indifferent cell. The excision of appendages with tumor...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:1991-01-01 00:00:00
abstract:OBJECTIVE:To explore a new method for the therapy of avascular necrosis of the femoral head. METHODS:The recombinant plasmid pCD-hVEGF165 was mixed with collagen and was implanted in the necrotic femoral head. The expression of vascular endothelial growth factor (VEGF) was examined by RNA dot hybridization and immunoh...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2003-10-01 00:00:00
abstract:OBJECTIVE:To study the analgesic mechanism of gabapentin, an anticonvulsant, during antinociceptive clinical treatment. METHODS:Whole-cell voltage-clamp recordings were taken from adult rat spinal cord slices to investigate the effect of gabapentin on primary afferent A delta-fiber evoked excitatory postsynaptic curre...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2003-06-01 00:00:00
abstract:BACKGROUND:One stage transanal Soave pull-through procedure (TSPP) is a recent popular operation in the treatment of Hirschsprung's disease (HD). With no visible scar and a short hospital stay, it is well accepted by surgeons and mothers. In the conventional Soave procedure, a long rectal muscular cuff left for anocoli...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2006-01-05 00:00:00
abstract:OBJECTIVE:To study the relationship between cartilage end-plate calcification and intervertebral disc degeneration. METHODS:An experimental model of cervical disc degeneration in rabbits was established by resection of the cervical supraspinous and interspinous ligaments and detachment of the posterior paravertebral m...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2001-03-01 00:00:00
abstract:BACKGROUND:Early diagnosis and accurate staging are important to improve the cure rate and prognosis for pancreatic cancer. This study was performed to develop an automatic and accurate imaging processing technique system, allowing this system to read computed tomography (CT) images correctly and make diagnosis of panc...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:10.1097/CM9.0000000000000544
更新日期:2019-12-05 00:00:00
abstract::A family with Fabry's disease including 2 hemizygotes and 3 heterozygotes is reported. The ocular manifestations include tortuosity of conjunctival vessels, Fabry's deposits underlying the anterior capsule of the lens and the whorl-like corneal dystrophy. Foam cells or mulberry cells in the urinary sediment and varyin...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:1990-02-01 00:00:00
abstract:BACKGROUND:The CHA2DS2-VASc score is used clinically for stroke risk stratification in patients with atrial fibrillation (AF). We sought to investigate whether the CHA2DS2-VASc score predicts stroke and death in Chinese patients with sick sinus syndrome (SSS) after pacemaker implantation and to evaluate whether the pre...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:10.4103/0366-6999.211881
更新日期:2017-08-20 00:00:00
abstract::Preeclampsia is represented by hypertension and proteinuria in pregnancy. It usually occurs after 20 gestational weeks. There are few reports on preeclampsia before 20 gestational weeks. In this case, we report a patient with chronic hypertension superimposed with preeclampsia at 13 gestational weeks. ...
journal_title:Chinese medical journal
pub_type: 杂志文章,评审
doi:
更新日期:2012-06-01 00:00:00
abstract:OBJECTIVE:To provide epidemiological data for revising the diagnostic criteria of neonatal hyperbilirubinemia in China. METHODS:A survey was performed among full-term infants in multiple centers throughout the country. From less than 24 hours after birth, the infants' bilirubin levels were measured every day until the...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2001-04-01 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:OBJECTIVE:Little information is available to guide treatment strategies regarding patients with unexpected positive cultures (UPC), including Propionibacterium acnes (PA), without overt signs of infection in revision shoulder arthroplasty (RSA). The purpose of our study was to analyze the prevalence, clinical meaning, ...
journal_title:Chinese medical journal
pub_type: 杂志文章,评审
doi:
更新日期:2014-01-01 00:00:00
abstract:BACKGROUND:The Ras/Raf/ERK1/2 signaling pathway controls many cellular responses such as cell proliferation, migration, differentiation, and death. In the nervous system, emerging evidence also points to a death-promoting role for ERK1/2 in both in vitro and in vivo models of neuronal death. To further investigate how ...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2013-10-01 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:Peutz-Jeghers syndrome (PJS) is an autosomal dominantly inherited disease. STK11/LKB1 gene germline mutations have been identified as responsible for PJS. In our study, we investigated the molecular basis of PJS and evaluated correlation between the STK11 mutations and the Chinese population. METHODS:We col...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2007-07-05 00:00:00
abstract::272 cases of schistosomal egg induced polyps collected from mass-screening for colorectal carcinoma in Jiashan County were divided into 3 types: fibrous type (FT), mixed type (MT) and epithelial proliferative type (ET). The ET was characterized by crypt elongation, hypertrophy, variation in size, disorderly arrangemen...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:1991-01-01 00:00:00
abstract::Since 1979 we have treated 149 patients with duodenal ulcer by extended parietal cell vagotomy (EPCV). Electron microscopy of parietal cells from gastric body mucosa and gastric acid secretory test were carried out in 22 randomly selected patients before and after EPCV. It was shown that before EPCV the ultrastructure...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:1995-12-01 00:00:00
abstract:OBJECTIVE:To have a better understanding of genetic contributions to the development of obstructive sleep apnea hypopnea syndrome (OSAHS) by reviewing studies on its genetic basis. DATA SOURCES:A comprehensive search of the PubMed literature without restriction on the publication date was carried out using terms "obst...
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 the effectiveness of using a medium molecular weight hydroxyethyl starch solution (HES) administered as a replacement for estimated blood loss (EBL) during cytoreductive surgery for ovarian cancer on splanchnic oxygenation. METHODS:Forty-two patients undergoing cytoreductive surgery for ovaria...
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:2003-07-01 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:OBJECTIVE:To investigate the effects of gypenosides (Gs) on cellular immunocompetence in the gamma-ray-irradiated mice. MATERIALS AND METHODS:Tested mice of ICR strain were treated continuously with Gs for 10 days before or after 4 Gy gamma-irradiation. Body weight and splenic weight of mice were measured. The blastog...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:1996-02-01 00:00:00
abstract::The ultrastructural changes of chronic cardiopathy in diabetic biobreeding rats were observed electronmicroscopically. The thickness of the myocardial capillary basement membrane (CBM) and volume fraction of myofilaments in the myocardium were quantitatively measured with a video interactive display system III (VIDS-I...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:1990-05-01 00:00:00
abstract:OBJECTIVE:To evaluate the effect of gynostemma pentaphyllum mak (GP) on carcinomatous conversions of leukoplasia of the golden hamster cheek pouch induced by dimethylbenzanthracene (DMBA). METHODS:284 golden hamsters, ranging from 4 to 8 weeks of age, 80 to 100 grams in weight were randomly divided into three groups: ...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:1998-09-01 00:00:00
abstract::In 16 dogs the endothelium of the left anterior descending coronary artery was injured mechanically. Then a copper wire was inserted into the lumen as a choke of flow and the vessel was slightly compressed from outside by a constrictor. Eight dogs had been treated beforehand with a preparation of flavone extracted fro...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:1991-09-01 00:00:00
abstract:BACKGROUND:Early neurological deterioration (END) is a prominent issue after recanalization treatment. However, few studies have reported the characteristics of END after endovascular treatment (EVT) as so far. This study investigated the incidence, composition, and outcomes of END after intravenous recombinant tissue ...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:10.4103/0366-6999.222343
更新日期:2018-01-20 00:00:00
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...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2008-05-05 00:00:00