Objective To determine the effect of combination of chest physiotherapy (CPT) and intermittent non-invasive ventilation for chronic obstructive pulmonary disease (COPD) patients with respiratory failure. Methods Ninety COPD patients with intermittent bi-level positive airway pressure (BiPAP) ventilation were randomly divided into 2 groups : control group (n=45) received BiPAP treatment after conventional anti-infection, phlegm treatment and support treatment; CPT group (n=45) received CPT before BiPAP treatment. Clinical symptoms, chest signs, chest X-ray, time of BiPAP therapy, PaO2, and PaCO2 after the treatment were evaluated. Results Compared with with the control group, patients in the CPT group significantly improved in clinical symptoms, chest signs, chest X-ray absorption as well as shorter BiPAP therapy time, PaO2 increase and PaCO2 decrease(P<0.05). Conclusion For COPD patients who need intermittent non-invasive BiPAP ventilation, receiving CPT can effectively improve the therapeutic effect. CPT and intermittent non in-vasive BiPAP ventilation cooperate in the treatment of COPD patients with respirstory failure.

OBJECTIVETo study the mechanism of brain development delay in rats with intrauterine growth retardation (IUGR) by examining the expression of nerve growth factor (NGF) and tyrosine kinase receptor A (Trk A) in the brain.

METHODSThirty-two pregnant rats were randomly fed with a normal diet (control group) or lower protein diet (IUGR group) during pregnancy (n=16 each). The pup rats were sacrificed at 0, 7, 14 or 21 days after birth. The protein levels of NGF and TrkA in the brain were determined by Western blot and immunohistochemistry staining.

RESULTSThe levels of NGF and TrkA in the brain in pup rats of the IUGR group were significantly lower than those in the control group 0, 7, 14 and 21 days after birth.

CONCLUSIONSThe decreased expression of protein levels of NGF and TrkA in the brain might be one of the causes of brain development delay in IUGR rats.

Animals ; Birth Weight ; Brain Chemistry ; Female ; Fetal Death ; epidemiology ; Fetal Growth Retardation ; epidemiology ; metabolism ; Immunohistochemistry ; Nerve Growth Factor ; analysis ; Pregnancy ; Rats ; Rats, Wistar ; Receptor, trkA ; analysis

A full-length cDNA encoding a MYB-related regulatory gene was isolated from a cDNA library prepared from mRNAs of the red line callus of S. medusa by TD-PCR. The cDNA, designated SmP, is 969 nucleotides long and has an open reading frame of 771 bp with a deduced amino acid sequence of 256 residues. The putative protein of SmP has two typical conversed R2R3-Myb DNA-binding domains in N-terminal and displays a rather high degree of similarity to OsMYB from rice and LBMI from tobacco, showing 73% and 70% identity within the DNA-binding domains. However, the C-terminal domain of the SmP protein does not show obvious similarity to any other known protein sequence. It is rich in hydrophilic amino acids, especially in serine residues (18.38%), partly organized in homopolymeric stretches, a feature often found in activation domain of transcription factors.
Amino Acid Sequence ; Cloning, Molecular ; Molecular Sequence Data ; Phylogeny ; Plant Proteins ; chemistry ; classification ; genetics ; metabolism ; Polymerase Chain Reaction ; Saussurea ; classification ; genetics ; metabolism ; Sequence Homology, Amino Acid ; Transcription Factors ; chemistry ; genetics ; metabolism

OBJECTIVETo evaluate the correlation between programmed death-ligand 1 (PD-L1) expression in primary lung cancer cells, tumor associated macrophages (TAM) and patients' clinicopathological characteristics.

METHODSFrom 2008 to 2010, 208 non-small cell lung cancer patients who underwent surgery or CT-guided biopsy were recruited from Huadong Hospital, Fudan University. Immunohistochemistry staining was performed to evaluate the PD-L1 expression in both primary lung cancer cells and CD68 positive TAM. The relationship between PD-L1 expression and the clinical pathology was evaluated using χ(2) test. Spearman's rank correlations were used to determine the correlation between PD-L1 expression in tumor cells and macrophages.

RESULTSPositive PD-L1 expression in primary cancer cells was found in 136 (65.3%) patients, which were negatively correlated with lymph node metastasis (P=0.009) and smoking history (P=0.036). Besides, TAM with PD-L1 expression (found in 116 patients) was positively associated with smoking history (P=0.034), well-differentiation (P=0.029) and negative lymph node metastasis (P=0.0096). A correlation between PD-L1 expression in primary tumor cells and non-small cell lung cancer associated macrophages was found (r=0.228, P=0.021).

CONCLUSIONPD-L1, secreted from TAM, might induce cancer cells apoptosis, and decrease lymph node metastasis.

Adult ; Aged ; Aged, 80 and over ; Apoptosis ; B7-H1 Antigen ; secretion ; Carcinoma, Non-Small-Cell Lung ; pathology ; secretion ; Cell Line, Tumor ; Female ; Humans ; Lung Neoplasms ; pathology ; secretion ; Lymphatic Metastasis ; Macrophages ; pathology ; secretion ; Male ; Middle Aged ; Retrospective Studies

OBJECTIVETo assess the operation indications, preoperative evaluation, technique essentials and clinical prospect of endovascular stent-graft exclusion for aortic dissection.

METHODSFrom September 1998 to April 2003, endovascular stent-graft exclusion for aortic dissection (Stanford B) was preformed in 146 patients. CTA or MRA were used as preoperative evaluation methods. Graft was constructed from self-expanding Z-stents covered with a woven Dacron polyester fabric graft (Talent). The stent-grafts were inserted from the femoral or iliac artery to exclude the tear of dissection, and all operations were performed under DSA guidance.

RESULTSThe grafts were installed successfully in 145 patients. In 119 patients only proximal tears were excluded, and 26 patients who had both the proximal and distal tears were excluded. The mean follow-up period was 16 months (1 - 54 months). Six patients died within the perioperative period, 2 patients died during the follow-up, 2 patients had recurrence of aortic dissection (Stanford A) and cured by Bentall operation. The others were in good state. No accidents related to the dissection and operation occurred.

CONCLUSIONSEndovascular graft exclusion may be a safe and effective treatment for selected patients with thoracic aortic dissection. Endoleak may lead to aneurysmal expansion and rupture. Further follow-up is necessary to evaluate its long-term effect.

Adult ; Aged ; Aged, 80 and over ; Aneurysm, Dissecting ; diagnostic imaging ; surgery ; Angiography ; methods ; Aortic Aneurysm ; diagnostic imaging ; surgery ; Blood Vessel Prosthesis Implantation ; adverse effects ; methods ; Female ; Follow-Up Studies ; Humans ; Male ; Middle Aged ; Postoperative Complications ; etiology ; prevention & control ; Preoperative Care ; Retrospective Studies ; Stents ; Treatment Outcome

OBJECTIVETo investigate the clinical features, treatment strategy and risk factors affecting the prognosis of elderly patients with non-small cell lung cancer (NSCLC) complicated by chronic obstructive pulmonary disease (COPD).

METHODSWe retrospectively analyzed the data of elderly patietns (>60 years) with newly diagnosed NSCLC complicated by COPD at the Geriatric Institution of General Hospital of PLA between January, 2000 and June, 2015. The clinical data collected included history of smoking, pulmonary function test results, initial treatments, TNM stage, chief complaints, comorbidities and laboratory tests. The Cox proportional hazards regression model was used to explore the prognostic factors in these patients.

RESULTSA total of 200 NSCLC patients were reviewed, of which 107 (53.5%) patients had the co-morbidity of COPD as confirmed by spirometry using bronchodilator test. The median survival of the patients with NSCLC complicated by COPD was 45.8 months with 1-, 3-, 5-, and 10-year survival rates of 80.4%, 55.4%, 41.0% and 20.0%, respectively. Stratification analysis showed that patients with COPD Gold grades 1 and 2 had a significant longer median overall survival (51.7 and 43.1 months, respectively) than those with grade 3/4 (16.9 months; P=0.020 and 0.043, respectively). Univariate and multivariate analyses using Cox proportional hazards regression model showed that an older age, a higher Gold grade, advanced disease stage (stages III and IV), squamous cell carcinoma, nonsurgical initial treatment, coughing and an elevated serum CEA level were independent risk factors for shorter survival of the patients.

CONCLUSIONMultiple prognostic factors can affect the outcomes of elderly patients with NSCLC complicated by COPD, and a higher COPD Gold grade that fails to respond to treatment within 3 months is the independent risk factor for survival of the patients.

OBJECTIVETo evaluate the effect of the diameter of abdominal aortic aneurysm (AAA) on endovascular exclusion (EVE) and its results.

METHODSFrom March 1997 to June 2007, 429 AAA patients were treated with endovascular stent-graft exclusion. According to the maximal diameter of abdominal aortic aneurysm, the patients were divided into two groups: group A (diameter < 55 mm, n = 274) and group B (diameter > or = 55 mm, n = 155). The diameter of AAA, involvement of iliac artery, length, diameter and distortion of aneurismal neck in the two groups were recorded and compared retrospectively.

RESULTSPatients in group B were significantly older than group A (73.7 vs 71.1 years, P < 0.05). More patients in group B was complicated with coronary artery disease than those in group A (P < 0.05). The mean diameter of AAA in group A was (46.6 +/- 6.8) mm, and (66.8 +/- 11.2) mm in group B (P < 0.05). Proximal aneurysmal necks were shorter, wider and more tortuous in group B than those in group A (P < 0.05). Extraperitoneal approach, embolism of inner iliac artery and reconstruction of another inner iliac artery and stretch technique were more applied in group B. There were more endoleak during operation in group B and more stent-grafts were used. There was significant difference in morbidity rate between the two groups, while no statistic difference in mortality. And in group B, there were a high rate of endoleak and secondary intervention post operation.

CONCLUSIONSThe diameter of AAA affects EVE and its results. In small aneurysms, EVE carries better outcome than in big aneurysms.

Aged ; Aged, 80 and over ; Aortic Aneurysm, Abdominal ; pathology ; surgery ; Blood Vessel Prosthesis Implantation ; methods ; Female ; Follow-Up Studies ; Humans ; Male ; Middle Aged ; Prognosis ; Retrospective Studies ; Stents ; Treatment Outcome

OBJECTIVETo report the clinical, genetic, and molecular characterization of two Chinese families with Leber's hereditary optic neuropathy (LHON).

METHODSOphthalmological examinations showed that only probands in two families exhibited visual loss at the age of 10 and 17 years respectively. The entire mitochondrial genome of two probands was PCR amplified in 24 overlapping fragments using sets of oligonucleotide primers.

RESULTSMutational analysis of mitochondrial DNA (mtDNA) in these pedigrees revealed the absence of three common LHON associated G11778A, G3460A and T144484 mutations but the presence of homoplastic LHON associated ND4 G11696A mutation, which was present in one out of 167 Chinese healthy controls.

CONCLUSIONSequence analysis of the complete mitochondrial genomes in two pedigrees showed the distinct sets of mtDNA polymorphisms, belonging to Eastern Asian haplogroup D4. The incomplete penetrance of visual loss and the presence of one in 167 controls suggested that this mutation itself is insufficient to produce a clinical phenotype and other modifier factors play a role in the phenotypic manifestation. The lack of functional mtDNA variants in these pedigrees ruled out the role of mitochondrial background in the phenotypic expression of visual loss. Therefore, nuclear modifier gene(s) or environmental factor(s) may play a role in the phenotypic expression of the LHON-associated G11696A mutation in two Chinese pedigrees.

Adolescent ; Adult ; Asian Continental Ancestry Group ; genetics ; Base Sequence ; Child ; DNA, Mitochondrial ; genetics ; Family ; Female ; Humans ; Male ; Mutation ; Optic Atrophy, Hereditary, Leber ; genetics ; Pedigree ; Phenotype

OBJECTIVETo clarify the outcome of surgical reconstruction for renal artery in Takayasu arteritis-induced renal artery stenosis (TARAS).

METHODSA retrospective chart review was conducted on 33 consecutive patients with TARAS, who underwent aortorenal bypass (ARB) with autologous saphenous vein graft. There were 9 male and 24 female patients, with a mean age of (25 ± 11) years. The effects on blood pressure and renal function were analyzed. Primary, primary assisted, and secondary patency rates were determined. The effects of various factors on primary patency rate were analyzed. All patients showed hypertension. The mean blood pressure was (175 ± 26)/(100 ± 19) mmHg (1 mmHg = 0.133 kPa). The mean antihypertensive dosage was (2.1 ± 0.6) defined daily dose (DDD). Seventeen patients showed intractable hypertension. Mean estimated glomerular filtration rate was (78 ± 5) ml/min. One patient was dialysis-dependent, and 3 patients were combined with congestive heart failure.

RESULTSARB was performed for the 39 renal arteries, including 27 unilateral and 6 bilateral bypasses. Postoperative morbidity was 15.2%. All patients survived. During follow-up of mean (56 ± 18) months, two graft occlusions and four graft restenoses occurred. All graft restenoses were eliminated successfully with percutaneous angioplasty, but one patient experienced restenosis again six months later. At 1, 3, and 5 years of follow-up, primary patency was 92%, 89%, and 79%, respectively, primary assisted patency was 95%, 95%, and 91%, respectively, and secondary patency was 95%, 95%, and 91%, respectively. ARB resulted in a decrease in mean blood pressure to 139/85 mmHg (one month post-ARB, P = 0.000) and 136/80 mmHg (last follow-up, P = 0.000), and a reduction in mean antihypertensive dosage to 1.4 DDD (one month post-ARB, P = 0.084) and 0.6 DDD (last follow-up, P = 0.000). Mean estimated glomerular filtration rate increased to 82 ml/min (P = 0.458) one month post-ARB, and 91 ml/min (P = 0.044) at last follow-up, respectively. The dialysis-dependent patient no longer required hemodialysis, and left ventricular dysfunction resolved in all of the three patients.

CONCLUSIONARB using the autologous saphenous vein graft is safe, effective and durable for treating TARAS.

Adolescent ; Adult ; Aorta ; surgery ; Child ; Female ; Follow-Up Studies ; Humans ; Male ; Middle Aged ; Renal Artery ; surgery ; Renal Artery Obstruction ; etiology ; surgery ; Retrospective Studies ; Saphenous Vein ; transplantation ; Takayasu Arteritis ; complications ; Treatment Outcome ; Young Adult

OBJECTIVETo determine the CT features and anatomic-pathologic basis of the 16-slice Spiral CT (SCT) for aortic dissection (AD).

METHODSForty-two cases with typical aortic dissection (AD) and 12 cases with intramural hematoma (IMH) underwent 16-slice SCT, performed with unenhanced, contrast-enhanced scanning and three-dimensional reconstruction. More attention was put on the true and false lumen, intimal flap, the entry tear and the involvement of branches of AD.

RESULTS(1) True and false lumen and intimal flap of AD could be shown in all of 42 cases (100%), the entry tears were revealed in 41 cases (97.6%), and the true and false lumen and intimal flap extended spirally in 41 cases (97.6%). (2) For intramural hematoma (IMH), unenhanced CT depicted crescent-shaped areas with high attenuation extending along the walls of the aorta in 10 cases (83.3%), and low attenuation in 2 cases (16.7%), while contrast-enhanced CT showed no enhancement of attenuation in the crescent-shaped areas in all 12 cases. Nine cases (75%) of IMH were associated with penetrating aortic ulcer.

CONCLUSIONSThe axial and three-dimensional images of 16-slice SCT can fast and exactly reveal the pathological and anatomical features of AD, and provide detailed imaging information for clinical therapy. It's very important for the selection of treatment methods.

Adult ; Aged ; Aneurysm, Dissecting ; diagnostic imaging ; pathology ; Aorta ; anatomy & histology ; Aortic Aneurysm ; diagnostic imaging ; pathology ; Female ; Humans ; Image Processing, Computer-Assisted ; Imaging, Three-Dimensional ; Male ; Middle Aged ; Tomography, Spiral Computed