Chinese medical journal (CHINESE MED J-PEKING )

Publisher: Zhonghua yi xue hui (China: 1949- )

Description

The Chinese Medical Journal (CMJ) is published monthly in English by the Chinese Medical Association, and is a peer reviewed general medical journal for all doctors, researchers, and health workers regardless of their medical specialty or type of employment. Established in 1887, it is the oldest medical periodical in China and is distributed worldwide. The journal functions as a window into China's medical sciences and reflects the advances and progress in China's medical sciences and technology. It serves the objective of international academic exchange. The journal includes Original Articles, Editorial, Review Articles, Medical Progress, Brief Reports, Case Reports, Conference Proceedings, News and Notes.

  • Impact factor
    0.90
    Show impact factor history
     
    Impact factor
  • 5-year impact
    1.02
  • Cited half-life
    4.90
  • Immediacy index
    0.11
  • Eigenfactor
    0.01
  • Article influence
    0.23
  • Website
    Chinese Medical Journal (English Edition) website
  • Other titles
    Chinese medical journal (Online), Chinese medical journal
  • ISSN
    0366-6999
  • OCLC
    54665917
  • Material type
    Document, Periodical, Internet resource
  • Document type
    Internet Resource, Computer File, Journal / Magazine / Newspaper

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: Acute kidney injury (AKI) is a common complication of sepsis, which is associated with higher risks of adverse outcomes. Recently, kidney disease: improving global outcomes (KDIGO) recommended a new guideline for AKI, including a little modification on the AKI staging criteria. This retrospective study included 211 septic patients admitted to the intensive care unit (ICU) at Xiangya Hospital, Central South University from January 2008 to January 2011. AKI was diagnosed and classified according to the KDIGO or acute kidney injury network (AKIN) criteria. Differences between the AKI and non-AKI groups for baseline characteristics, laboratory examinations, etiology, outcomes, as well as the risk factors for AKI and 28-day mortality were analyzed. The reliability of the KDIGO criteria was also evaluated by comparing it with the AKIN criteria. The overall incidence of AKI in septic patients was 47.9%, and the 28-day mortality was 32.7%. The incidence of AKI was significantly higher in patients with more severe sepsis. Indicators of hepatic and respiratory function were significantly worse in the AKI group. Furthermore, a higher proportion of patients were infected with Enterobacter cloacae in the AKI group. The independent risk factors for AKI were shock, the number of organ failures, blood urea nitrogen (BUN) levels, and the use of vasopressors. The independent risk factors for mortality were BUN and creatine kinase-MB (CK-MB) levels. Both the KDIGO criteria and the AKIN criteria were significantly associated with 28-day mortality. The incidence and 28-day mortality of AKI were very high in ICU septic patients. Greater attention should be paid to AKI-induced hepatic and respiratory dysfunction in clinical practice. Patients with an intra-abdominal source of infection were more likely to develop AKI. KDIGO criteria are reliable in AKI staging.
    Chinese medical journal 05/2014; 127(10):1820-6.
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    ABSTRACT: Infancy is a critical period of growth and physiological development, in which breast milk is the best source of nutrients. Compared to western countries, research on breast milk of Chinese population are limited. Thus, it is necessary to measure breast milk energy and macronutrient concentrations of healthy urban Chinese mothers at different lactation stages, to expand the database of milk composition of Chinese population, and to examine whether dietary or other maternal factors can affect the levels of macronutrients in breast milk. Breast milk of full expression of one side breast from 436 urban Chinese lactating mothers at 5-11 days, 12-30 days, 31-60 days, 61-120 days, and 121-240 days postpartum was obtained at 9:00 a.m. to 11:00 a.m. Total energy, lactose, protein, and fat contents were measured. 24-hour dietary recall was surveyed, and maternal nutrient intakes were analyzed. Milk composition changed over the course of lactation and large individual variations were documented. The concentrations were 61.3 kcal/dl for total energy, 7.1 g/dl for lactose, 0.9 g/dl for protein, and 3.4 g/dl for fat in mature milk. Stage of lactation was a strong factor affecting milk composition. Minimal evidence was found for associations between maternal current dietary intake and milk macronutrient concentration, consistently with prior research. Maternal body mass index (BMI) was positively associated with milk fat content, to a greater extent than did dietary intake. All other maternal characteristics were not significant for milk composition. These findings suggest that milk composition is generally weakly associated with maternal factors except for stage of lactation, and is likely to be more susceptible to long-term maternal nutritional status than short-term dietary fluctuation.
    Chinese medical journal 05/2014; 127(9):1721-5.
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    ABSTRACT: Evidence shows that ezrin plays an important role in the development of some human malignancies. But the mechanism by which ezrin may affect tumor cell invasion and metastasis remains unclear. In this study, the expression of ezrin was verified in osteosarcoma (OS) cells and tissues by comparison with normal bone cells and tissues using Western blotting. OS-MG63 were transfected with pcDNA3.1-ezrin or pGenesil-1/shRNA-ezrin and the stably transfected cells were selected with G418 to yield the ezrin cell line. The OS-MG63 tumor cells were delivered by tail vein to female BALB/c to develop pulmonary metastasis model in vivo. Ezrin was identified as a direct target of miR-183 via a luciferase reporter carrying the 3'-untranslated region of ezrin. Migration assays and invasion assays were done with the transwells. Signaling pathway was studied by Western blotting and/or inhibitor. Ectopic overexpression of ezrin in OS cell line MG63 promoted tumor cell invasion and migration. Consistent with this, knockdown of ezrin inhibited tumor cell invasion and migration. Similar results were obtained in the experimental metastasis model in vivo. We identified ezrin as a direct target of miR-183. What is more, ectopic expression of ezrin could induce the expression of N-cadherin and enhance the activity of extracellular signal-regulated kinase (ERK) signaling. Collectively, these results suggest that ezrin as a direct target of miR-183 promotes the aggressiveness of OS via increased N-cadherin and activating ERK signaling.
    Chinese medical journal 05/2014; 127(10):1954-9.
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    ABSTRACT: The purpose of this study was to conduct thyroid ultrasound examinations on a large sample of subjects and explore the occurrence, distribution, and characteristics of thyroid nodules and thyroid cancer to provide some information on the epidemic trend of thyroid nodules and cancer. The thyroid ultrasonic examination results of 19 895 healthy physical examinees who visited the Department of Health Management, Peking Union Medical College Hospital from January 2009 to December 2011 were analyzed retrospectively to determine the detection rate and characteristics of thyroid nodules. Fine needle aspiration or surgical resection was suggested to subjects suspected of having thyroid cancer. The detection rate of thyroid nodules was 42.6% (8 480/19 895), 40.0% (4 661/11 678) in men and 46.5% (3 819/8 217) in women. The detection rate noticeably increased with increasing age. The detection rate of thyroid nodules by palpation was obviously lower than by ultrasonic examination in various age groups. Among those with thyroid nodules, 61.3% were multiple and 38.7% were solitary; multiple nodule was the major type both in men and women. Twenty-nine cases of malignant nodules were solitary, and 30 cases of malignant nodules were multiple. There was no significant difference. The detection rate of thyroid cancer was 0.30% for the entire group of examinees, and 0.15% in men and 0.50% in women. Among all sex and age groups, 30- to 40-year-old women had the highest detection rate (0.76%). The detection rate of thyroid nodules correlated with age, systolic blood pressure, height, and weight. Increasing age and/or higher systolic blood pressure correlated with a higher detection rate, while smaller height and weight also correlated with a higher detection rate with significant differences. However, there were no significant correlations between the detection rate and diastolic blood pressure or body mass index. The detection of thyroid cancer increased significantly, especially in women. Thus, precautions needed to be taken. Regular physical examination and timely intervention after detection of malignant nodules are critical to improve the prognosis in thyroid cancer patients.
    Chinese medical journal 05/2014; 127(9):1661-5.
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    ABSTRACT: Nicotine may improve schizophrenia patient's cognitive deficit symptoms. This study was to explore the chronic effects of smoking on prepulse inhibition of the startle reflex (PPI) and P50 in the patients with first-episode schizophrenia (FES). The event-related potentials (ERP) recording and analysis instrument made by Brain Products, Germany, was used to detect PPI and P50 in 49 male FES patients (FES group, n = 21 for smokers and n = 28 for non-smokers) and 43 normal male controls (control group, n = 19 for smokers and n = 24 for non-smokers). Compared with normal controls, the FES group had prolonged PPI latency when elicited by single stronger stimulus (P < 0.05); the FES group had prolonged PPI latency and increased PPI amplitude (P < 0.05, 0.01) when elicited by weak and strong stimuli. The FES group had lower PPI inhibition rate than normal controls (P < 0.05). Compared with normal controls, the FES group had increased P50-S2 amplitude and increased amplitude ratio S2/S1 (both P <0.05). In the control group, the smokers had a tendency of increase in P50-S2 amplitude (P > 0.05) and shorter P50-S2 latency (P < 0.05) than the non-smokers. The smokers had higher PPI amplitude than the non-smokers (P < 0.05). In the FES group, the smokers had higher P50-S1 amplitude, shorter P50-S2 latency, and higher amplitude ratio S2/S1 than the non-smokers (P < 0.05, 0.01). The smokers had higher PPI amplitude than the non-smokers (P < 0.05). There is obvious PPI and P50 deficits in schizophrenic patients. However, these deficits are relatively preserved in the smokers compared with the non-smokers, which suggests that long-term smoking might partially improve the sensory gating in schizophrenic patients. Whether this conclusion can be deduced to female patients requires further follow-ups.
    Chinese medical journal 05/2014; 127(9):1651-5.
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    ABSTRACT: Amniotic fluid (AF) supernatant contains cell-free fetal DNA (cffDNA) fragments. This study attempted to take advantage of cffDNA as a new material for prenatal diagnosis, which could be combined with simple quantitative fluorescent polymerase chain reaction (QF-PCR) to provide an ancillary method for the prenatal diagnosis of trisomy 21 syndrome. AF supernatant samples were obtained from 27 women carrying euploid fetuses and 28 women carrying aneuploid fetuses with known cytogenetic karyotypes. Peripheral blood samples of the parents were collected at the same time. Short tandem repeat (STR) fragments on chromosome 21 were amplified by QF-PCR. Fetal condition and the parental source of the extra chromosome could be determined by the STR peaks. The sensitivity of the assay for the aneuploid was 93% (26/28; confidence interval, CI: 77%-98%) and the specificity was 100% (26/26; CI: 88%-100%). The determination rate of the origin of the extra chromosome was 69%. The sensitivity and the specificity of the assay in the euploid were 100% (27/27). Trisomy 21 can be prenatally diagnosed by the QF-PCR method in AF supernatant. This karyotype analysis method greatly reduces the requirement for the specimen size. It will be a benefit for early amniocentesis and could avoid pregnancy complications. The method may become an ancillary method for prenatal diagnosis of trisomy 21.
    Chinese medical journal 05/2014; 127(10):1897-901.
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    ABSTRACT: Insulin resistance (IR) plays an important pathophysiological role in the development of diabetes, dyslipidemia, hypertension, and cardiovascular disease. Moreover, IR can occur even in non-obese people without diabetes. However, direct detection of IR is complicated. In order to find a simple surrogate marker of IR early in non-obese people, we investigate the association of commonly-used biochemical markers (liver enzymes and lipid profiles) with IR in urban middle-aged and older non-obese Chinese without diabetes. This cross-sectional study included 1 987 subjects (1 473 women). Fasting blood samples were collected for measurement of glucose, insulin, liver enzymes, lipid profiles and creatinine. Subjects whose homeostasis model of assessment-IR (HOMA-IR) index values exceeded the 75th percentile (2.67 for women and 2.48 for men) of the population were considered to have IR. The area under the receiver operating characteristic curve (ROC) was used to compare the power of potential markers in identifying IR. Triglycerides (TG) and ratio of TG to high-density lipoprotein cholesterol (TG/HDL-C) discriminated IR better than other indexes for both sexes; areas under the receiver operating characteristic (ROC) curves (AUC) values were 0.770 (95% confidence interval 0.733-0.807) and 0.772 (0.736-0.809), respectively, for women and 0.754 (0.664-0.844) and 0.756 (0.672-0.840), respectively, for men. To identify IR, the optimal cut-offs for TG and TG/HDL-C ratio were 1.315 mmol/L (sensitivity 74.3%, specificity 71.0%) and 0.873 (sensitivity 70.1%, specificity 73.4%), respectively, for women, and 1.275 mmol/L (sensitivity 66.7%, specificity 74.4%) and 0.812 (sensitivity 75.8%, specificity 69.2%), respectively, for men. TG and TG/HDL-C ratio could be used to identify IR in urban middle-aged and older non-obese Chinese without diabetes.
    Chinese medical journal 05/2014; 127(10):1858-62.
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    ABSTRACT: Obstructive lung disease (OLD, chronic obstructive pulmonary disease or asthma) is an important cause of death in older people. There has been no exhaustive population-based mortality study of this subject in Shanghai. The objective of this study was to use a multiple cause of death methodology in the analysis of OLD mortality trends in the Yangpu district of Shanghai, from 2003 through 2011. We analyzed death data from the Shanghai Yangpu District Center for Disease Control and Prevention for Medical Cause of Death database, selecting all death certificates for individuals 40 years or older on which OLD was listed as a cause of death. From 2003 to 2011, there were 8 775 deaths with OLD listed, of which 6 005 (68%) were identified as the underlying cause of death. For the entire period, a significantly decreasing trend of age standardized rates of death from OLD was observed in men (-6.2% per year) and in women (-5.7% per year), similar trends were observed in deaths with OLD. The mean annual rates of deaths from OLD per 100 000 were 161.2 for men and 80.8 for women from 2003 to 2011. While, as the underlying cause of death, the main associated causes of death were as follows: cardiovascular diseases (70.7%), cerebrovascular diseases (13.3%), diabetes (8.6%), and cancer (4.3%). The associated causes and the principal overall underlying causes of death were cardiovascular diseases (37.0%), cancer (30.3%), and cerebrovascular disease (15.3%). A significant seasonal variation, with the highest frequency in winter, occurred in deaths identified with underlying causes of chronic bronchitis, other obstructive pulmonary diseases, and asthma. Multiple cause mortality analysis provides a more accurate picture than underlying cause of total mortality attributed on death certificates to OLD. The major comorbidities associated with OLD were cardiovascular disease, cancer, and cerebrovascular disease. From 2003 to 2011, the mortality rate from OLD decreased substantially in the Yangpu district of Shanghai.
    Chinese medical journal 05/2014; 127(9):1619-25.
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    ABSTRACT: Diarrhea is a common clinical feature of ulcerative colitis resulting from unbalanced intestinal fluid and salt absorption and secretion. The Cl(-)/HCO3(-) exchanger SLC26A3 is strongly expressed in the mid-distal colon and plays an essential role in colonic Cl(-) absorption and HCO3(-) secretion. Slc26a3 expression is up-regulated by lysophosphatidic acid (LPA) in vitro. Our study was designed to investigate the effects of LPA on SLC26A3 expression and the diarrheal phenotype in a mouse colitis model. Colitis was induced in C57BL/6 mice by adding 4% of dextran sodium sulfate (DSS) to the drinking water. The mice were assigned to LPA treatment DSS group, phosphate-buffered saline (PBS) treatment DSS group, DSS only group and untreated mice with a completely randomized design. Diarrhea severity was evaluated by measuring mice weight, disease activity index (DAI), stool water content and macroscopic evaluation of colonic damage. The effect of LPA treatment on Slc26a3 mRNA level and protein expression in the different groups of mice was investigated by quantitative PCR and Western blotting. All mice treated with DSS lost weight, but the onset and severity of weight loss was attenuated in the LPA treatment DSS group. The increases in stool water content and the macroscopic inflammation score in LPA treatment DSS group were significantly lower compared to DSS control group or PBS treatment DSS group ((18.89±8.67)% vs. (28.97±6.95)% or (29.48±6.71)%, P = 0.049, P = 0.041, respectively and 2.67±0.81 vs. 4.5±0.83 or 4.5±0.54, P = 0.020, P = 0.006, respectively), as well as the increase in DAI (P = 0.004, P = 0.008, respectively). LPA enema resulted in higher Slc26a3 mRNA and protein expression levels compared to PBS-treated and untreated DSS colitis mice. LPA increases Slc26a3 expression in the inflamed intestine and reduces diarrhea severity in DSS-induced colitis, suggesting LPA might be a therapeutic strategy in the treatment of colitis associated diarrhea.
    Chinese medical journal 05/2014; 127(9):1737-43.
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    ABSTRACT: Various rat kidney transplantation models have been introduced over the decades and the study on the models seems to lack novelty and necessity. However, vascular anastomosis, especially renal vein, is still very difficult for trainees. The aim of this study was to provide the modified renal venous anastomosis of rat kidney transplantation to substitute the current method for trainees. Male Wistar rats were used as donors and recipients, respectively. Left orthotopic transplantation was performed with a modified technique of renal vein anastomosis, combining the end-to-end sutures with epidural catheter. Meanwhile, the survival rate, warm ischemia time, renal venous anastomosis time, and complications were recorded to evaluate the merits of the modified technique compared with the current recommended technique of rat renal vein. Two trainees took part in the learning of the models in two methods for performing 30 operations, respectively. The difference in warm ischemia time (from (57.25±7.30) minutes in the first 10 operations to (30.05±1.85) minutes in the third 10 operations) and renal vein anastomosis time (from (32.80±3.80) minutes in the first 10 operations to (19.30±0.98) minutes in the third 10 operations) was significantly short (P < 0.01) and the survival rate was statistically high (from (25±7)% in the first 10 operations to 70% in the third 10 operations) in equal number of operations (P < 0.01) by comparing with the current recommended method ((47.60±7.19) minutes to (22.8±1.85) minutes, (22.40±3.10) minutes to (9.95±1.50) minutes, 45%±7% to 80%±0, respectively). The intraoperative complications and postoperative complications of renal venous anastomosis were also significantly decreased (P < 0.01). The technique with epidural catheter can shorten the learning curve of the trainee learning rat kidney transplantation. It may replace the currently recommended technique of rat renal vein for trainees.
    Chinese medical journal 05/2014; 127(10):1919-23.
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    ABSTRACT: Though there have been various methods for harvesting and preserving descemet membrane (DM) and intact endothelium, there is no literature about the morphological evaluation of endothelium after graft preparation for descemet membrane endothelial keratoplasty (DMEK). The aim of this study was to establish and improve a simple method for preparing, preserving, and morphologically evaluating the donor graft for DMEK. To obtain a donor graft, an air bubble was formed by injecting a 29 G needle with 1 ml sterile air into a small edge created outside the Schwalbe line. Another needle was inserted into the bubble through the stroma to aspirate the air or replace half the air with organ culture medium. Trypan blue was used to mark the location for small incision to improve the success rate. Frozen sections were stained with hematoxylin and eosin (HE). Based on the air bubble, DM grafts were divided into four groups: group A (normal control), graft without any operative technique; group B, graft with zero-pressure air bubble; group C, graft with full-pressure air bubble; group D, graft with half-pressure air bubble. The four groups of grafts were preserved for 24 hours to observe the effect of bubbles on cells. The gross and ultrastructure morphologies were evaluated using alizarin red and scanning electron microscopy (SEM), respectively. Donor grafts were harvested via the air bubble technique, facilitated by prior trypan blue staining. HE-stained sections revealed a pure graft without stroma. There were no significant changes under light microscope. In group A, SEM revealed a confluent layer of polygonal endothelium with distributed microvilli exhibiting characteristics of interdigitating junctions. In group B, intercellular borders became thinner. In group C, interdigitations were almost flat and microvilli were observed less frequently. In group D, other than less microvilli, there were minimal changes. The donor graft preparation method appears to be effective and convenient. Properly decreasing the air pressure could protect and preserve the endothelium.
    Chinese medical journal 05/2014; 127(10):1902-6.
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    ABSTRACT: Interrupted aortic arch (IAA) is a rare congenital anomaly affecting 1.5% of infants with congenital heart disease. Neonatal repair of IAA is required to avoid irreversible pulmonary vascular lesion. However, in China, patients with IAA associated with ventricular septal defect (VSD) and patent ductus arteriosus (PDA) over one year of age are common. So we investigated the outcome of surgical treatment of IAA with VSD and PDA in patients over one year of age. From January 2009 to December 2012, 19 patients with IAA have undergone complete single-stage repair. The patients' mean age was 4.4 years, ranging 1 to 15 years; and their mean weight was 12.8 kg, ranging 4.2 to 36.0 kg. Fifteen IAA were type A, four were type B. Preoperative cardiac catheterization data were available from all patients. Mean pulmonary arterial pressure (mPAP) and pulmonary vascular resistance (PVR) were measured. The measurements of postoperative pulmonary artery pressure were taken in the operating room at the end of the case. All patients underwent echocardiographic examinations before discharged from the hospital. In addition, cardiac catheterization and echocardiographic examinations were performed during follow-up. Selective brain perfusion through the innominate artery during aortic arch reconstruction was used in all patients. Mean follow-up was (1.6±0.8) years. There were two hospital deaths (2/19, 11%). One patient died of pulmonary hypertension crisis, and another died of postoperative low cardiac output. Five cases had other main postoperative complications but no postoperative neurologic complications. Seventeen survivors were followed up, and there were no late deaths or reoperation. Mean cross-clamp duration was (85±22) minutes and selective brain perfusion duration was (34±11) minutes. Two patients required delayed sternal closure at two days postoperatively. Intensive care unit and hospital stays were (9±8) days and (47±24) days, respectively. Pressure gradients across the anastomosis at most recent follow up were less than 22 mmHg. mPAP regressed significantly from preoperative (62.1±8.1) mmHg to postoperative (37.3±11.3) mmHg (P < 0.001) and (24.2±6.0) mmHg at six months after discharged from the hospital (P < 0.001). The pulmonary vascular resistance also regressed significantly from preoperative (1 501.4±335.7) dyn×s×cm(-5) to (485.0±215.1) dyn×s×cm(-5) at six months after discharged from the hospital (P < 0.001). The majority of the seventeen patients (89%) were in New York Heart Association (NYHA) class I, and 11% remained in NYHA class II. Single-stage repair of patients with IAA, VSD and PDA over one year of age can have good surgical results and functional outcomes. Assessment and treatment of pulmonary artery pressure pre-operatively and postoperatively was crucial. mPAP and pulmonary vascular resistance may have regress significantly compared to preoperative values.
    Chinese medical journal 05/2014; 127(9):1684-90.
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    ABSTRACT: Early detection of pulmonary tuberculosis (PTB) is a big challenge in smear negative and sputum scarce patients in China. Simultaneous amplification and testing methods for detection of the Mycobacterium tuberculosis (MTB) complex (SAT-TB assay) is a novel molecular technique established in our hospital. This method has a high sensitivity and specificity in the lab. In this study, the clinical diagnostic performance of this method in smear-negative or sputum-scarce PTB suspects was investigated and evaluated. Two hundred smear negative and 80 sputum-scarce patients were recruited in this study. Samples that included sputum or bronchial washing fluid were collected and sent for both bacteria culture and SAT-TB assay. Diagnosis for these patients was based on the comprehensive evaluation of chestX- ray/CT study, histology examination, lab results, and treatment response. Sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) for each diagnostic test were investigated and calculated using confirmed tuberculosis (TB) and non-TB cases. The time required for detection of MTB was also measured for each method. Ninety-two patients (33%) were diagnosed as definitive TB, 112 patients (40%) were probable PTB, and 76 (27%) were non-TB. The sensitivity, specificity, PPV, and NPV of SAT-TB in smear-negative PTB suspects were 93% (95% CI, 84%-98%), 98% (95% CI, 90%-100%), 98% (95% CI, 91%-100%), and 93% (95% CI, 83%-98%). In sputum scarce PTB suspects, the sensitivity, specificity, PPV, and NPV of the SAT-TB assay on bronchial washing fluids were 90% (95% CI, 74%-98%), 100% (95% CI, 85%-100%), 100% (95% CI, 88%-100%), and 88% (95% CI, 69%-97%). The accuracy of the SAT-TB assay is consistent with the bacteria culture assay. The median time required for detecting MTB in the SAT-TB assay was 0.5 day, which was much faster than bacteria culture (28 days). The SAT-TB assay is a fast and accurate method for the detection of MTB. It can be widely applied in the clinic and be an asset in early detection and management of PTB suspects, especially in those patients who are smear negative or sputum scarce.
    Chinese medical journal 05/2014; 127(10):1863-7.
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    ABSTRACT: Currently, no medicine is available that can prevent or treat neural damage associated with optic nerve injury. Minocycline is recently reported to have a neuroprotective function. The aims of this study were to exarmine the neuroprotective effect of minocycline on retinal ganglion cells (RGCs) and determine its underlying mechanisms, using a mouse model of optic nerve crush (ONC). ONC was performed in the left eye of adult male mice, and the mice were randomly divided into minocycline-treated group and saline-treated control group. The mice without receiving ONC injury were used as positive controls. RGC densities were assessed in retinal whole mounts with immunofluorescence labeling of βIII-tubulin. Transmission electron microscopy was used to detect RGC morphologies, and Western blotting and real-time PCR were applied to investigate the expression of autophagy markers LC3-I, LC3-II, and transcriptional factors nuclear factor-κB1 (NF-κB1), NF-κB2. In the early stage after ONC (at Days 4 and 7), the density of RGCs in the minocycline-treated group was higher than that of the saline-treated group. Electron micrographs showed that minocycline prevented nuclei and mitochondria injuries at Day 4. Western blotting analysis demonstrated that the conversion of LC3-I to LC3-II was reduced in the minocycline-treated group at Days 4 and 7, which meant autophagy process was inhibited by minocycline. In addition, the gene expression of NF-κB2 was upregulated by minocycline at Day 4. The neuroprotective effect of minocycline is generated in the early stage after ONC in mice, partly through delaying autophagy process and regulating NF-κB2 pathway.
    Chinese medical journal 05/2014; 127(9):1749-54.
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    ABSTRACT: We evaluated the impact of the number of metastatic lymph nodes and the metastatic lymph nodes ratio (the ratio between metastatic lymph nodes and total dissected lymph nodes, MLNR) in patients with gastric adenocarcinoma following curative gastrectomy and also analyzed the relationship between the number of removed lymph nodes and prognosis in node-negative gastric cancer. From January 2005 to December 2010, 1 390 patients who were diagnosed with gastric adenocarcinoma and underwent curative gastrectomy were included. In particular, lymph node metastasis was not present in 515 patients. The number of metastatic lymph nodes and the metastatic lymph nodes ratio were selected for univariate and multivariate analyses to evaluate their influences on the disease outcome. The survival curve was presented according to the number of removed lymph nodes in node-negative gastric cancer using Kaplan-Meier plots. The overall 5-year survival rate was 54% in this group. Univariate analysis revealed that age category, macroscopic appearance, histological grade, tumor size, depth of primary tumor invasion, number of metastatic lymph nodes, metastatic lymph nodes ratio, tumor, nodes, metastasis-classification (TNM) stage and status of lymphovascular, and vessel invasion have significant impact on survival. The number of metastatic lymph nodes and the metastatic lymph nodes ratio both have significant impact on survival (P < 0.001). However, in multivariate analyses, only the metastatic lymph nodes ratio was identified to be an independent prognostic factor (P < 0.001). The number of removed lymph nodes in node-negative was a strong prognostic factor of survival, the more lymph nodes dissected, the better the survival. The metastatic lymph nodes ratio has more significant prognostic value for survival in patients with gastric cancer following curative gastrectomy than the number of metastatic lymph nodes. The number of removed lymph nodes might be an important prognostic factor for gastric cancer without lymph node metastasis.
    Chinese medical journal 05/2014; 127(10):1874-8.
  • Chinese medical journal 05/2014; 127(10):1969-72.