Abstract:
OBJECTIVE:To investigate injury to epidermal melanocyte by Q-switched Alexandrite laser. METHODS:Multiple biopsies were performed on 5 patients with nevus of Ota from before irradiation to 1 year after irradiation. Fourteen specimens were obtained for light microscopy, and 17 for transmission electron microscopy. RESULTS:Melanosomes in epidermal melanocytes were both smaller in size and fewer in number than those in dermal melanocytes. Immediately after irradiation, focal extracellular vacuoles of the basal layer could be observed under light microscopy. Most epidermal melanocytes underwent mild or moderate injury in the form of vacuolated melanosomes, swollen mitochondria, dilation of endoplasmic reticulum, and expansion of extracellular space, retaining intact cell membranes. Normal structures were restored 5 months to 1 year after irradiation, with no depigmentation or hyperpigmentation as seen by light microscopy. CONCLUSION:Injury of melanosomes in epidermal melanocytes is reversible.
journal_name
Chin Med J (Engl)journal_title
Chinese medical journalauthors
Lu Z,Chen J,Wang X,Fang L,Jiao S,Huang Wkeywords:
subject
Has Abstractpub_date
2003-04-01 00:00:00pages
597-601issue
4eissn
0366-6999issn
2542-5641journal_volume
116pub_type
杂志文章abstract:BACKGROUND:Endothelial dysfunction is thought to be critical events in the pathogenesis of Alzheimer's disease (AD). Endothelial progenitor cells (EPCs) have provided insight into maintaining and repairing endothelial function. To study the relation between EPCs and AD, we explored the number of circulating EPCs in pat...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2011-03-01 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:BACKGROUND:Ahmed Glaucoma Valve implantation (AGVI) is used to treat refractory glaucoma. Breakdown of the blood-aqueous barrier (BAB) has been noted after some surgical techniques. The current study was designed to assess BAB disruption after AGVI. METHODS:Anterior chamber protein content was measured by the laser fl...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2013-03-01 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:Although a variety of risk factors of pneumonia after clipping or coiling of the aneurysm (post-operative pneumonia [POP]) in patients with aneurysmal subarachnoid hemorrhage (aSAH) have been studied, the predictive model of POP after aSAH has still not been well established. Thus, the aim of this study was ...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:10.1097/CM9.0000000000001304
更新日期:2020-12-24 00:00:00
abstract:BACKGROUND:The prognostic values of the coronary computed tomography angiography (CCTA) score for predicting future cardiovascular events have been previously demonstrated in numerous studies. However, few studies have used the rich information available from CCTA to detect functionally significant coronary lesions. We...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:10.4103/0366-6999.194636
更新日期:2016-12-05 00:00:00
abstract:OBJECTIVE:To provide an overview of the current knowledge of growth-differentiation factor 15 (GDF-15) in heart disease. DATA SOURCES:To identify relevant publications, we searched PubMED database combining the textual terms of heart, cardiac, cardiovascular disease with GDF-15. STUDY SELECTION:Well-controlled, relat...
journal_title:Chinese medical journal
pub_type: 杂志文章,评审
doi:
更新日期:2013-04-01 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 observe the long-term follow-up of 72 patients with transient ischemic attack (TIA) and evaluate the clinical significance of neurovascular surgical indication. METHODS:Seventy-two patients with TIA collected from years 1959 to 1977 were followed up by means of face-to-face communication with the patients...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2001-12-01 00:00:00
abstract:BACKGROUND:Among patients with advanced multivessel coronary disease, left ventricular (LV) function is widely variable, and clinical and angiographic correlates of ventricular dysfunction remain to be defined. METHODS:Among 73 339 patients undergoing diagnostic cardiac catheterization at a single center in China, pat...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2012-12-01 00:00:00
abstract:BACKGROUND:Successful antiretroviral therapy (ART) has been demonstrated to be effective in reducing the infectivity of human immunodeficiency virus (HIV). We conducted a study to predict the potential effect of ART on the spread of HIV in Chaoyang District, Beijing, China, using the Asian Epidemic Model (AEM). METHOD...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:10.4103/0366-6999.196571
更新日期:2017-01-01 00:00:00
abstract:BACKGROUND:Restrictive cardiomyopathy (RCM) is the least common cardiomyopathy in which the walls are rigid and the heart is restricted from stretching and filling properly. Cardiac troponin I (cTnI) mutation-caused myofibril Ca2+ hypersensitivity has been shown to be associated with impaired diastolic function. This s...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:10.4103/0366-6999.219150
更新日期:2017-12-05 00:00:00
abstract:BACKGROUND:The incidence of no reflow phenomenon limits the clinical outcomes of percutaneous coronary intervention (PCI). This randomized controlled study was designed to evaluate the immediate protective effects of intensive statin pretreatment on myocardial perfusion and myocardial ischemic injury during PCI. METHO...
journal_title:Chinese medical journal
pub_type: 杂志文章,随机对照试验
doi:
更新日期:2009-03-20 00:00:00
abstract::To investigate the HBV infection and its replication in Chinese patients with chronic liver disease, polymerase chain reaction (PCR) was employed to detect hepatitis B virus DNA in sera of 410 patients with chronic liver disease and liver samples from 188 patients. The HBV DNA detectability in all serum samples was 58...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:1993-01-01 00:00:00
abstract:OBJECTIVE:To review articles aiming to present an overview of the principles, progress, uses and limitations of laser speckle flowgraphy (LSFG) in posterior fundus circulation research. DATA SOURCES:The data used in this review was obtained mainly from the studies reported in PubMed using the key terms "laser speckle"...
journal_title:Chinese medical journal
pub_type: 杂志文章,评审
doi:
更新日期:2011-12-01 00:00:00
abstract:BACKGROUND:Epinephrine has been used as a first-choice vasopressor drug for cardiac arrest (CA) since 1974. However, the administration of epinephrine is controversial. This study aims to compare the effects of Shen-Fu injection (SFI) and epinephrine on resuscitation outcomes in a porcine model of prolonged CA. METHOD...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2014-01-01 00:00:00
abstract:Background:The outcome of pediatric deceased donor liver transplantation (LT) has not been well studied, especially pediatric deceased donor livers used in adult transplantation. This study aimed to evaluate the efficacy of LT using pediatric deceased donor livers and compare the outcomes between pediatric-to-pediatric...
journal_title:Chinese medical journal
pub_type: 杂志文章,评审
doi:10.4103/0366-6999.226901
更新日期:2018-03-20 00:00:00
abstract:BACKGROUND:Total hip arthroplasty (THA) in developmental dysplasia of the hip (DDH) is more complex than the normal hip, with large replacement risks and many complications. Although nonosteotomy THA is convenient to perform, femoral osteotomy shortening can avoid blood vessel and nerve traction injuries. This study ai...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:10.4103/0366-6999.174507
更新日期:2016-02-05 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:BACKGROUND:Telocytes (TCs) are a novel type of interstitial cells, which have been recently described in a large variety of cavitary and noncavitary organs. TCs have small cell bodies, and remarkably thin, long, and moniliform prolongations called telopodes (Tps). Until now, TCs have been found in various loose connect...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:10.4103/0366-6999.150102
更新日期:2015-02-05 00:00:00
abstract:BACKGROUND:First generation drug-eluting stents (DES) were associated with a high incidence of late stent thrombosis (ST), mainly due to delayed healing and re-endothelization by the durable polymer coating. This study sought to assess the safety and efficacy of the Nano polymer-free sirolimus-eluting stent (SES) in th...
journal_title:Chinese medical journal
pub_type: 杂志文章,随机对照试验
doi:
更新日期:2014-01-01 00:00:00
abstract:OBJECTIVE:To investigate the effects of red orpiment on cell morphology, expression of promyelocytic leukemia (PML) mRNA and its protein localization in NB4 and HL-60 cell lines. METHODS:Cell morphology was assayed by Wright's staining and fluorescence staining, while PML mRNA expression was determined by RT-PCR. PML ...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2003-01-01 00:00:00
abstract:BACKGROUND:Hippophae rhamnoides L. (HL) exerts antioxidant activities against various oxidative stress conditions. In this study, we investigated effects of extract from HL leaves (HLE) on cell proliferation and neuroblast differentiation in the subgranular zone (SGZ) of the dentate gyrus (DG) of aged gerbils. METHODS...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2014-01-01 00:00:00
abstract:BACKGROUND:Over the years, the mechanical ventilation (MV) strategy has changed worldwide. The aim of the present study was to describe the ventilation practices, particularly lung-protective ventilation (LPV), among brain-injured patients in China. METHODS:This study was a multicenter, 1-day, cross-sectional study in...
journal_title:Chinese medical journal
pub_type: 杂志文章,多中心研究
doi:10.4103/0366-6999.185869
更新日期:2016-07-20 00:00:00
abstract:OBJECTIVE:To review the research progress on Type IV secretion system (T4SS) in Helicobacter pylori. DATA SOURCES:The data used in this review were identified by searching of PUBMED (1995 - 2007) online resources using the key terms 'Type IV secretion system' and 'Helicobacter pylori'. STUDY SELECTION:Mainly original...
journal_title:Chinese medical journal
pub_type: 杂志文章,评审
doi:
更新日期:2007-12-05 00:00:00
abstract::It is difficult to make a precise diagnosis of intestinal tuberculosis and to differentiate it from Crohn's disease. For evaluating Polymerase Chain Reaction (PCR) assay in these two aspects, 36 specimens of intestinal tuberculosis from surgical resections and endoscopic biopsies and 26 Crohn's disease samples were su...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:1995-03-01 00:00:00
abstract:BACKGROUND:The incidence of vancomycin-resistant enterococci (VRE) appeared to be increasing in China, but very few nosocomial outbreaks have been reported. Our hospital had experienced an outbreak of VRE since March 2008 to March 2009. The objective of this study was to analyze the molecular features of the isolates a...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2011-02-01 00:00:00
abstract:BACKGROUND:Obesity has an adverse effect on iron status. Hepcidin-mediated inhibition of iron absorption in the duodenum is a potential mechanism. Iron-deficient obese patients have diminished response to oral iron therapy. This study was designed to assess whether acupuncture could promote the efficacy of oral iron su...
journal_title:Chinese medical journal
pub_type: 杂志文章,随机对照试验
doi:10.4103/0366-6999.200549
更新日期:2017-03-05 00:00:00
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 promote...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:2010-06-01 00:00:00
abstract::An epidemic of parenterally transmitted non-A, non-B hepatitis (PT-NANBH) occurred in plasmapheresis donors in Guan County, Hebei Province, China, in 1985. PT-NANBH was diagnosed by epidemiological studies and serological exclusion of HAV, HBV, CMV and EBV infections. Recently, 163 sera samples of 108 patients with PT...
journal_title:Chinese medical journal
pub_type: 杂志文章
doi:
更新日期:1991-06-01 00:00:00