Aged ; Aged, 80 and over ; Candidiasis ; complications ; microbiology ; Coal Mining ; Esophagitis ; complications ; microbiology ; Humans ; Male ; Middle Aged ; Pneumoconiosis ; complications ; microbiology

?Advances in genome-wide analysis have revealed that up to 90%of the human genome is transcribed.However, only approximately 1% of RNA transcripts encode proteins, and the remaining transcripts are noncoding RNAs.Noncoding RNAs can be roughly divided into small noncoding RNAs (<200nt ) and long noncoding RNAs ( LncRNAs, >200nt ). Small noncoding RNAs include microRNAs, transfer RNAs and small nucleolar RNAs, whereas the long noncoding RNAs comprise ribosomal RNA, natural antisense transcripts, etc. Although the biosynthesis and biological activities of microRNAs are well studied through bioinformatics and active biological molecules analysis, the understanding of LncRNAs on these aspects is still limited.LncRNAs play multiple roles in regulating gene transcription and translation, and epigenetics.Aberrant LncRNAs expression can occur in various pathological processes and significantly related to the pathogenesis or poor prognosis of ophthalmological diseases. In this review, we will focus on the characteristics and regulatory functions of LncRNAs that are commonly associated with ophthalmological diseases.

Objective To explore the role of plasminogen activator inhibitor-1(PAI-1)in development of progressive fibrosis via the inhibition of extracellular matrix degradation,and to reveal the contributive role of PAI-1 in muscular dystrophy(MD).Methods Expression and cellular localization of PAI-1 protein were examined in frozen muscle specimens obtained via biopsy from 5 patients with duchenne muscular dystrophy(DMD),3 patients with becker muscular dystrophy(BMD),9 patients with congenital muscular dystrophy(CMD) and 4 cases with normal muscle by immunohistochemistry,double immunofluorescence and Western-blot analysis.Results PAI-1 was positive only in vascular endothelial cells of normal muscle.Both immunohistochemistry and Western-blot analysis showed that PAI-1 expression distinctly increased in most dystrophic muscles of MD than that in normal muscles.Double immunolabeling revealed that PAI-1 strongly expressed in cytoplasm and nuclei of regenerating muscle fibers,macrophages,macrophage infiltrating necrotic fibers.Some activated fibroblasts in endomysium and perimysium of DMD and CMD muscles were positive for PAI-1.Conclusions The functional consequence of overexpression of PAI-1 in dystrophic muscles is unknown but the elevated local expression of PAI-1 in diseased muscles of MD and their distinct distribution pattern provide evidence that PAI-1 participate in pathogenesis of MD.

Emotional labor is an important constituent of teaching affairs.Research on emotional labor suggests that there are both positive and negative effects for employees.This article aims to reduce negative influence of emotional labor and comes up with some countermeasures for maintaining the mental health of teachers.

Objective To study the influencing factors,treatment and prevention of venous thromboembolic (VTE) in elderly patients with malignant tumor.Methods The clinical findings in forty elderly patients with malignant tumor combined with VTE from our hospital within 5 years were analyzed retrospectively.The risk,site,time,prevention and treatment of VTE in these tumor patients were analyzed and summarized.Results After active treatment,the positive efficacy response was obtained in 26 cases (65.0％),no-response in 14 cases (35.0％).Specifically,14 cases died,7 cases cured,and 19 cases were improved.Besides cancer and aging,the elderly tumor patients were considered as the high-risk group because of the risk factors including hypertension,diabetes,hyperlipidemia,pulmonary infection,surgery,radiation,chemotherapy and so on.D-dimer level was significantly increased in elderly malignant tumor patients with VTE.Venous thrombosis could occur at any stage.Venous thrombosis was found before tumor in 1 case.The most common site of DVT was the lower limbs,especially the left lower extremities (14 cases,35％).Most of internal carotid vein and upper limb vein thrombosis were associated with peripherally inserted central catheter (PICC) Conclusions The elderly patients with malignant tumor is the extremely high risk groups for venous thrombosis,and their quality of life and survival will be seriously impacted.Anticoagulant therapy through the whole process of treatment in patients with VTE is beneficial.The prevention and treatment of VTE play an important role in the tumor patients with risk factors such as chronic diseases,high D dimer level,radiation and chemotherapy,which should attract the attention of clinicians.

ObjectiveTo investigate the effects of sex hormones( 17 β-estradiol and testosterone)on human omental preadipocytes proliferation and differentiation and on leptin and adiponectin secretions in adipocytes.Methods Omental preadipocytes were cultured and then differentiated into mature adipocytes in vitro.The proliferation and differentiation processes of preadipocyte were observed.The preadipocytes were incubated in the presence of sex hormones and were detected the contents and gene expressions of leptin and adiponectin.ResultsHuman preadipocytes were primarily cultured successfully.Estradiol stimulated preadipocytes proliferation (0.823±0.059 vs 0.276 ±0.032,P＜0.05 ),and inhibited lipid accumulation in cell differentiation ( P＜0.05 ).Testosterone had no significant effect on proliferation of preedipocytes,but inhibited adipogenic differentiation ( P＜0.05).Leptin could be detected during proliferation and differentiation of preadipocytes.Estradiol increased the leptin secretion,whereas testosterone reduced it ( all P ＜ 0.05 ).The adiponectin only could be detected during differentiation.Sex hormones reduced the adiponectin secretion.17β-estradiol stimulated leptin mRNA expression and suppressed adiponectin mRNA expression in adipocytes.Testosterone suppressed the mRNA expressions of leptin and adiponectin (all P ＜ 0.05 ).ConclusionIn vitro,17β-estradiol increases the leptin secretion and mRNA expression whereas reduced the adiponectin secretion and mRNA expression.Testosterone reduced the adiponectin and leptin secretion and mRNA expression.

Airway Obstruction ; complications ; surgery ; Continuous Positive Airway Pressure ; Humans ; Infant ; Male ; Sleep Apnea Syndromes ; etiology ; therapy ; Sleep Apnea, Obstructive ; etiology ; therapy ; Treatment Outcome

Objective To explore the clinicopathological characteristics and prognosis of invasive micropapillary carcinoma of the breast (IMPC),and the distinction between IMPC and invasive ductal carcinoma of the breast (IDC).Methods From February 2004 to November 2013,195 IMPC patients and 420 IDC patients were analyzed retrospectively.Results There were significant differences in mammilla invasion,lymph vessel invasion,orange peel sign,soft tissue encroachment,neoadjuvant chemotherapy,radical mastcctomy,lymph node metastasis,clinical stages,tumor size,lymph node staging,estrogen receptor (ER),progestin receptor (PR),human epidermal growth factor receptor 2 (HER2),molecular subtyping,ratio of radiation,ratio of endocrine therapy,disease-free survival (DFS),overall survival (OS)between the two groups,all P ＜0.05.Patients with IMPC had lower 5-year DFS and OS rates (68.2％ and 73.8％,respectively) than IDC patients (85.7％ and 88.6％,respectively),all P ＜ 0.05.In IMPC patients with positive ER/PR,HER2-negative,smaller tumor volume,less lymph node metastasis,negative nipple invasion,negative lymphatic vessel tumor thrombus,negative orange peel change had higher 5-year DFS and OS rates than those with negative ER/PR,HER2 overexpression,larger tumor volume,more lymph node metastasis,positive nipple invasion,positive lymphatic vessel tumor thrombus,positive orange peel change,all P ＜ 0.05.Besides,the patients with pathologic stage Ⅰ had higher OS than those with stage Ⅲ (P ＜ 0.05).Cox regression analysis found that orange peel change,lymph vessel invasion and HER2 were the independent risk factors for the survival time of patients with IMPC.Conclusions IMPC patients have lower DFS and OS compared with IDC.

Objective To investigate the effect of acupuncture at Zusanli, Sanyinjiao and Danzhong on mammary estrogen receptor (ER) and progesterone receptor (PR) expressions in rats with dimethylbenzanthracine (DMBA)-induced mammary cancer. Methods One hundred and twenty female SD rats aged 6-8 weeks were randomized into a model group of 60 rats and a blank group of 30 rats. The model group received an oral gavage of DMBA for model making. The blank group received an oral gavage of equal volume of sesame oil. At 15 weeks after model making, the model group of rats was randomized into treatment and control groups. The treatment group received acupuncture at Zusanli, Sanyinjiao and Danzhong, and the control and blank groups, only the same grasp and release. After the completion of acupuncture treatment (twenty-seventh week), abdominal venous blood was taken and serum tumor markers were determined by electrochemiluminescence immunoassay. Tumor masses were counted and their shapes were recorded. The mass was taken and its height, maximum diameter and vertical diameter were measured using a 1 mm precision vernier caliper. Pathological changes in tumor tissues, and ER and PR positive areas and mean optical densities were observed under an Olympus optical microscope.Results There were statistically significant post-treatment differences in the average number and volume of mammary tumors between the treatment group and the control or blank group (P<0.01,P<0.05) and between the control and blank groups (P<0.01). There were statistically significant post-treatment differences in the concentrations of various tumor markers (CA724, CA125, CA199, AEP, CA15-3, CEA and CA50) between the treatment or control group and the blank group (P<0.01,P<0.05) and between the control and blank groups (P<0.01). There was a statistically significant post-treatment difference in CA15-3 concentration between the treatment and control groups (P<0.01). There were statistically significant post-treatment differences in ER and PR positive areas and mean optical densities between the treatment group and the control or blank group (P<0.01) and between the control and blank groups (P<0.01).Conclusions Acupuncture can reduce the occurrence of rat DMBA-induced mammary tumor (including the number and volumes of the tumors). The mechanism of its action may be related to decreasing the concentrations of tumor markers CA724, CA125, CA199, CA15-3, AEP, CEA and CA50 and especially to decreasing CA15-3 concentration, and ER and PR positive areas and mean optical densities.

Objective To understand the prevalence,drug resistance and clinical features of children with acute lower respiratory tract infection(ALRI) caused by escherichia coli.Methods From Oct. 2005 to Oct. 2006,659 patients with ALRI who were admitted to hospital were chosen and their nasopharyngeal secretions were obtained and cultured.K-B disc diffusion for antibiotic susceptibility were performed for these clinical isolates.Results Among 659 patients,118 cases were isolated escherichia coli,the rate was 17.99% which had 90 boys and 28 girls.Eighty-seven of 118 E.coli strains were with extended-spectrum ?-lactamase(ESBLs),the rate was 73.73%.All of strains were sensitive to imipenem.For ESBLs-producing strains,the ratio of resistance tocefotaxime,ceftriaxone,cefuroxime,ampicillin,piperacillin were 78.81%,73.73%,73.73%,76.27%,78.81%,respectively.Conclusions The positive rate of ESBLs producing E coli in Kunming area is high and drug resistance is severe gradually.Imipenem can be the first selection for treatment on these infections.