Adenocarcinoma, Follicular ; diagnosis ; pathology ; Adenoma ; diagnosis ; pathology ; Carcinoma, Papillary ; diagnosis ; pathology ; Carcinoma, Papillary, Follicular ; diagnosis ; pathology ; Cell Nucleus ; pathology ; Diagnosis, Differential ; Humans ; Neoplasm Invasiveness ; Thyroid Gland ; pathology ; Thyroid Neoplasms ; diagnosis ; pathology ; Thyroid Nodule ; diagnosis ; Thyroiditis ; diagnosis

AIM:To study the visual acuity and refractive status of students pupils and middle school students in Shenzhen, and to provide a scientific basis for the prevention and control of myopia.
METHODS:A cluster sampling method was used to select five primary school students(6 737) and three junior middle school students(1 925) from Shenzhen. The visual acuity, anterior segment, fundus, eye position, and refractive status were measured. Information on associated factors for poor vision were also obtained using a questionaire. The risk factors of poor vision and the rate of myopia between grade or gender were analysed by Chi-square test.
RESULTS:The rate of poor vision was 67. 0%. Female, family history of high myopia, long time of continuous look near, short time of outdoor activities were the main risk factors. The rate of emmetropia, hyperopia, astigmatism and myopia were 15. 1%, 11. 3%, 11. 0% and 62. 6% respectively. Emmetropia, hyperopia and astigmatism incidenece rate decreased with age growing, but myopia incidence rate was increased. There were significant differences between adjacent two grades in myopia(χ2=7. 338-45. 018, P<0. 05 ) except the primary grade six and the junior grade one. There were significant differences between boys ( 61. 0%) and girls ( 65. 5%) in myopia(χ2=17. 180, P<0. 05).
CONCLUSION:The rate of poor vison is pretty high in students of Shenzhen aged between 5 to 16 years old, and myopia is the main reason. The development rate of myopia is increased with age. Early management of myopia may play an important role in controlling poor vision in students.

OBJECTIVETo find the objective indices for traditional Chinese medicine (TCM) pattern identification in women patients with climacteric hypertension (CH) by exploring the relationship between TCM pattern with blood levels of sex hormone, lipid and glucose.

METHODSTCM syndrome differentiation was made in 75 women CH patients, 43 as yin-deficiency with inner dryness pattern (YDD) and 32 as non-YDD, and correlation analyses were conducted on TCM patterns and blood levels of estradiol (E2), lipids and glucose.

RESULTSBesides the level of E2 in YDD was lower than that in non-YDD [(112.26 -/+ 66.81) pmol/L vs (146.69 +/- 83.59) pmol/L, P < 0.05), no difference between the two patterns was found in the other indices measured (P > 0.05). Further subunit analysis showed that in patients with CH grade 1, blood levels of total cholesterol (TC), high density lipoprotein (HDL) and apoprotein A-I (ApoA-I) were higher in the 13 patients of YDD than those in the 9 of non-TDD (P < 0.05); in patients with CH grade 2, levels of E2, progesterone (T), HDL and ApoA-I were lower but level of follicle stimulating hormone (FSH) was higher in the 20 YDD than those in the 10 non-YDD (all P < 0.05); while in patients with CH grade, no statistically significant difference was shown between 3 patients of 10 with YDD and 13 with non-YDD in all the indices measured (P > 0.05).

CONCLUSIONBlood level of E2 shows different characteristics between CH patients of YDD and non-YDD patterns, suggesting that it may provide some help to syndrome micro-differentiation, and taking it as an objective index for syndrome typing of climacteric hypertension in female is considerable.

Adult ; Blood Glucose ; metabolism ; Estradiol ; blood ; Female ; Humans ; Hypertension ; blood ; Lipids ; blood ; Menopause ; blood ; Middle Aged ; Progesterone ; blood ; Yin Deficiency ; blood

OBJECTIVETo explore the clinical symptom and effect of arthroscopic treatment of symptomatic anterior cruciate ligament (ACL) cysts of the knee.

METHODSClinical data from 12 symptomatic ACL cysts patients from January 2005 to December 2010 were retrospectively analyzed,including 8 males and 4 females,with an average age of (33.7±9.5) years old (ranged, 19 to 53 years old). The locations were the left knee in 5 cases and the right knee in 7 cases. The disease duration ranged from 3 to 48 months,with a mean of (15.8±13.2) months. All cysts were arthroscopically resected. Range of motion was measured preoperatively and postoperatively, and Lysholm scoring system was used to evaluate the knee function.

RESULTSAll the incisions healed by first intention, and no complications occurred. Twelve patients were followed up for an average of (32.3±6.6) months(ranged, 24 to 48 months). The symptoms of arthralgia,swelling and interlocking of the affected knees disappeared. There was no recurrence during the follow-up. There were significant differences in the range of motion and Lysholm score between pre-operation and post-operation.

CONCLUSIONArthroscopic surgery, showing its advantages of minimal invasion and rapid recovery,is an effective measure in the treatment of ACL cysts.

Adult ; Anterior Cruciate Ligament ; physiopathology ; surgery ; Arthroscopy ; methods ; Cysts ; physiopathology ; surgery ; Female ; Humans ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Range of Motion, Articular

Objective: To investigate the perceptions towards preoperative assessment of the elderly patients undergoing elective surgery among surgical nurses, providing scientific basis for standardizing preoperative assessment. Methods: Eleven nurses were chosen in surgical ward. Data were collected by using semi-structured in-depth interviews and were analyzed with the Colaizzi method. Results: Four themes were extracted: Necessity of surgical nurses for preoperative assessment of elderly patients undergoing elective surgery; Perceptions towards the contents of preoperative assessment; Current status of preoperative assessment; Suggestions for preoperative assessment. Conclusions Surgical nurses play an important role in preoperative assessment of elderly patients undergoing elective surgery and they emphasize the comprehensive preoperative assessment contents. However, comprehensive geriatric assessment is rarely used, lacking of uniform and standard criteria. We suggest to standardize preoperative assessment, improving the implementation rate and perioperative care, thus promoting rehabilitation.

OBJECTIVE: To investigate the regulation of hepatitis C virus (HCV) core protein on the activity of signal transducers and activators of transcription 3 (stat3). METHODS: A cell line expressing stable HCV core protein-QSG7701-core was constructed by transfecting the pcDNA3. 1-core (expressing HCV core protein) into the human immortalized hepatocyte line QSG7701. The phosphorylation and DNA binding activity of stat3 were detected by immunocytochemistry, Western blot, and electrophoretic mobility shift assay (EMSA). RESULTS: The expression level of phosphorylated stat3 in QSG7701-core cells was significantly lower than that in QSG7701-pcDNA3. 1 cells and untransfected QSG7701 cells, but there were no significant differences in the expression levels of total stat3 among the 3 groups. The positive signal of phosphorylated stat3 in nucleus of QSG7701-core cells was obviously weaker than that in QSG7701-pcDNA3. 1 cells and untransfected QSG7701 cells. EMSA showed that DNA binding activity of stat3 in QSG7701-core cells significantly decreased. CONCLUSION The expressionof HCV core protein in human hepatocyte line may suppress the phosphorylation and DNA binding activity of stat3, which may be one of the causes for resistance against interferon.
Cell Line ; DNA-Binding Proteins ; metabolism ; Hepatocytes ; cytology ; metabolism ; Humans ; STAT3 Transcription Factor ; metabolism ; Signal Transduction ; Transfection ; Viral Core Proteins ; biosynthesis ; genetics

BACKGROUND: It is still a problem to achieve early and accurate diagnosis of Alzheimer's disease, and delayed treatments often occur in a large number of patients because of late diagnosis or misdiagnosis. Therefore, the development and improvement of related bioanalytical methods are of great importance for the biomarker detection of Alzheimer's disease which is still lack of means that are sensitive, efficient and low-cost. OBJECTIVE: To summarize the diagnostic methods and related biomarkers of Alzheimer's disease, and to sum up the research progress in novel biomimetic receptors for the early detection of Alzheimer's disease biomarkers. METHODS: PubMed, CNKI and Wanfang databases were used to search articles related to the biomarker studies of Alzheimer's disease and relevant studies about methods of biomarkers detection published from 2000 to 2016. The key words were "Alzheimer's disease, biomarkers, detect/detecting/detection" in Chinese and English, respectively. Finally 40 articles were obtained for the review. RESULTS AND CONCLUSION: At present, the bioanalytical methods used for biomarker detection of Alzheimer's disease mostly utilize antibodies as recognition and capture elements of biomarkers, but there are some limitations using traditional antibodies as detection receptors. Thus, novel biomimetic receptors can be substituted for conventional antibodies. Novel biomimetic receptors have high specificity, small size, low production costs and high product stability, and their chemical modification process is relatively convenient. Biomimetic receptors developed for protein analysis include aptamers, polypeptide receptors, peptoid receptors, molecularly imprinted polymers, nanobodies, gelsolin and cucurbit urils. Detection of biomarkers with novel biomimetic receptors instead of conventional antibodies will be more accurate and timely in the early diagnosis of Alzheimer's disease.

Objective To investigate the relationship between the promoter of IL-12B gene polymorphism and the susceptibility and clinical features of chronic gastritis and duodenal ulcer with or without Helicobacter pylori(Hp) infection in children and adolescent.Methods Mucosal biopsies were obtained from 132 children and adolescent (patient group),including 100 children with chronic gastritis and 32 children with duodenal ulcer,undergoing an upper gastrointestinal endoscopy for dyspeptic symptoms.Biopsy specimens were stained with hematoxilin and eosin (HE),and gastritis was graded according to the Sydney system.Serology,urease test and histology were taken to assess Hp status.Genomic DNA was obtained from peripheral blood or gastric biopsies of patients and 102 healthy children as normal control group.The promoter of IL-12B +1188A/G gene polymorphism was genotyped by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) and sequencing.The genotype distributions and allele frequencies were compared between the study group and the normal control group,and the association of genotypes with clinicopathological features was studied.IL-12B mRNA level expressions in gastric mucosa were confirmed by reverse transcription PCR biopsy-based tests.Results The genotype distributions and allele frequencies of IL-12B +1188A/G gene polymorphisms were similar in gastric upper gastrointestinal diseases and healthy subjects.The IL-12B +1188A/G gene polymorphisms were not associated with Hp status.IL-12B+1188A/G gene polymorphisms did not affect IL-12B mRNA level expressions and were not associated with the degree of antrum chronic inflammation.Conclusions These data suggest that IL-12B+1188A/G gene polymorphisms are not associated with susceptibility to chronic gastritis and duodenal ulcer in children and adolescent.

OBJECTIVETo evaluate the possibility that using intracoronary delivery of autologus bone marrow-derived mesenchymal stem cells (MSCs) to improve the cardiac function after acute myocardial infarction (AMI) in miniature pig.

METHODSMSCs were cultured in Dulbecco's modified Eagle's medium-F12 (DMEM/F12) medium. AMI model was made by blocking the blood stream of the first diagonal branch in miniature pig, and released the branch after 90 minutes. After 10-14 days, (4-6) x 10(7) culture-expanded autologus 4', 6-diamidino-2-phenylindole (DAPI)-labelled MSCs were transplanted into each host heart's AMI area through intracoronary way. Ultrasonic cardiography (UCG) was performed to observe the left ventricular function at 3 months after transplantation. The cellular transplanted hearts were harvested and investigated by immunohistochemical analysis.

RESULTSLeft ventricular function of the MSCs group was improved significantly 3 months later compared with the control group [(54.65 +/- 3.39) vs (43.98 +/- 4.21)%, (P < 0.01)]. Exogenous MSCs survived and site-differentiated into cardiomyocytes in infracted hearts.

CONCLUSIONMSCs can play a benificial role to repair damaged heart. Heart function can be improved after MSCs transplantation in porcine myocardial infarction model.

Animals ; Female ; Male ; Mesenchymal Stem Cell Transplantation ; methods ; Myocardial Infarction ; pathology ; physiopathology ; therapy ; Swine ; Swine, Miniature ; Transplantation, Autologous ; Treatment Outcome

OBJECTIVETo investigate COX-2 expression in patients with gastric cancer and its relationship with angiogenesis and clinicopathologic features of gastric cancer.

METHODSCOX-2 expression and CD34-stained microvessel density (MVD) were detected by immunohistochemical methods in specimens from 96 patients with gastric cancer. The correlations among COX-2 expression, MVD and clinicopathologic features were analyzed.

RESULTSThe COX-2 positive rate and MVD in gastric cancer were significantly higher than those in the normal gastric mucosa (80.2% vs. 13.3%; 32.5+/- 8.3 vs. 13.1+/- 2.4, all P< 0.01). The COX-2 positive rate and MVD in the patients with stage III and IV were significantly higher (91.4% and 34.9+/- 8.7 respectively, P< 0.01), than that in the patients with stage I and II. The COX-2 positive rate and MVD in the cases with lymph node metastasis were 87.9% and (35.0+/- 8.5) respectively, higher than those in the cases without lymph node metastasis (P< 0.05). The Spearman rank correlation test showed a significant correlation between COX-2 expression and tumor MVD (r=0.311, P< 0.01).

CONCLUSIONSCOX-2 plays an important role in gastric cancer angiogenesis. COX-2 and angiogenesis induced by COX-2 contribute to tumor invasion and lymph node metastasis.

Adult ; Aged ; Cyclooxygenase 2 ; metabolism ; Female ; Humans ; Immunohistochemistry ; Male ; Middle Aged ; Neoplasm Staging ; Neovascularization, Pathologic ; metabolism ; pathology ; Stomach Neoplasms ; metabolism ; pathology