Objective To investigate the relationship between vaspin,Apelin,leptin and polycystic ovary syndrome.Methods We determined the serum vaspin,Apelin and leptin levels of 40 cases of PCOS patients and 30 cases of control group,and divided the PCOS group into three subgroups (normal weight,overweight and obesity) according to WHO criteria for obesity.Then we compared the serum vaspin,Apelin and leptin levels in PCOS and control group,and the differences in body weight index (body mass index,BMI) in women with polycystic ovary syndrome,and analyzed roles of adipokine vaspin,Apelin and leptin in the pathogenesis of PCOS.Results In PCOS patients adipokine vaspin,Apelin,leptin,insulin resistance index (Homeostasis model assessment for insulin index in resistence,HOMA-IR),fasting insulin (INS) and blood glucose,blood lipid were higher than those of the control group and increased with the increase of body mass index (BMI),and three kinds of adipokines and PCOS patients with HOMA-IR were positively correlated,there were statistically significant differences (P ＜ 0.05).Conclusion The results of vaspin,Apelin and leptin may be involved in the occurrence of PCOS.

Histone deacetylases are involved in many biological processes and have roles in regulating cell behaviors such as cell cycle entry, cell proliferation and apoptosis. However, the effect of histone deacetylases on the development of hair cells (HCs) has not been fully elucidated. In this study, we examined the influence of histone deacetylases on the early development of neuromasts in the lateral line of zebrafish. Hair cell development was evaluated by fluorescent immunostaining in the absence or presence of histone deacetylase inhibitors. Our results suggested that pharmacological inhibition of histone deacetylases with inhibitors, including trichostatin A, valproic acid and MS-275, reduced the numbers of both HCs and supporting cells in neuromasts. We also found that the treatment of zebrafish larvae with inhibitors caused accumulation of histone acetylation and suppressed proliferation of neuromast cells. Real-time PCR results showed that the expression of both p21 and p27 mRNA was increased following trichostatin A treatment and the increase in p53 mRNA was modest under the same conditions. However, the expression of p53 mRNA was significantly increased by treatment with a high concentration of trichostatin A. A high concentration of trichostatin A also led to increased cell death in neuromasts as detected in a TUNEL assay. Moreover, the nuclei of most of these pyknotic cells were immunohistochemically positive for cleaved caspase-3. These results suggest that histone deacetylase activity is involved in lateral line development in the zebrafish and might have a role in neuromast formation by altering cell proliferation through the expression of cell cycle regulatory proteins.
Animals ; Apoptosis ; Cell Proliferation ; Cyclin-Dependent Kinase Inhibitor Proteins/genetics/metabolism ; Histone Deacetylase Inhibitors/*pharmacology ; Histone Deacetylases/*metabolism ; Histones/metabolism ; Larva/growth & development/metabolism ; Lateral Line System/cytology/*growth & development/metabolism ; Mechanoreceptors/drug effects/*metabolism/physiology ; RNA, Messenger/genetics/metabolism ; Zebrafish ; Zebrafish Proteins/*metabolism

Objective: To investigate the refractive status of children and adolescents aged 4-18 years in Chengdu, and to analyze the epidemiological characteristics of refractive parameters. Methods: A cross sectional survey was conducted among 82 024 children and adolescents aged 4-18 years in Gaoxin District of Chengdu from August to September 2021. The prevalence of screening myopia, low vision rate, high myopia rate, refractive status and axial development were analyzed. Results: The prevalence of screening myopia in students aged 4-18 years was 40.42%(33 158/82 024). Low myopia was 24.51%(20 108/82 024), moderate myopia was 13.05%(10 703/82 024) and high myopia was 2.86%(2 347/82 024). The prevalence of screening myopia was 1.81% (233/12 848) in kindergarten, 34.44%(17 095/49 644) in primary school, 79.73%(9 738/12 214) in junior high school and 83.25% (6 092/7 318) in senior high school. The rate of visual impairment increased by year from the age of 4, and the rate of myopia increased most rapidly from 6 to 15 years old, the prevalenct of high myopia was compared between adjacent age groups: there were statistical differences between 9-15 years old were more likely to be nearsighted than boys( P <0.035 7). Significant differences in screening myopia between 5- and 7-17 year old groups,and in boys and girls.The median total diopter was 0.40 D at the age of 4 and developed to -2.90 D at the age of 18 . The diopter of girls aged 8-15 years was higher than that of boys, and there was statistical significance( Z=-2.53, -4.09, -5.67, -8.64, -5.56, -4.97, -2.52, -2.14, P <0.05). The axial length gradually increased with age, with the mean value of (22.31±0.59) mm at 4 years old and (24.91±1.00) mm at 18 years old. The mean corneal curvature did not change with age (43.19±1.47)D. Conclusion 6-15 years old is a especially critical period for myopia development. More efforts need to be taken to decrease the prevalence of myopia before 6 years old. Prevention of the development of high myopia should start before the age of 10. The prevalence of myopia in girls is higher than that in boys, more prevention and control of myopia should focus on girls.

BACKGROUND AND OBJECTIVEAtelectasis is a common complication after thoracotomy, and it may threaten patients' life if it was not treated correctly and properly. The aim of this article is to explore and discuss the prevention and treatment for atelectasis during the perioperative period, and also to explore new methods for reducing the perioperative mortality due to atelectasis after thoracotomy.

METHODSWe retrospectively reviewed the medical records of 374 lung cancer patients who underwent thoracotomy in our department between Jan 2007 and Nov 2009.

RESULTSAtelectasis occurred in 14 patients among all the 374 lung cancer patients who underwent thoracotomy. All the atelectasis returned to reexpansion after treatment.

CONCLUSIONThe incidence of atelectasis in these series is relatively low compared with the reports in literatures. Good perioperative preparation and perioperative treatment can remarkably decrease the incidence and mortality of atelectasis after thoracotomy in the treatment of lung cancer.

Female ; Humans ; Lung Neoplasms ; surgery ; Male ; Middle Aged ; Pulmonary Atelectasis ; prevention & control ; Retrospective Studies ; Thoracotomy ; adverse effects ; methods

BACKGROUND: Venous thromboembolism (VTE) is a recognized complication in lung cancer patients with higher morbidity and mortality. The purpose of this study is to determine the incidence of lower extremity venous thrombosis (LEDVT) in lung cancer patients and to reveal the risk factors for LEDVT during admission in our center. METHODS: We first connected 231 patients with lung cancer admitted to the Department of Lung Cancer Surgery, Tianjin Medical University General Hospital from July 2017 to December 2017. All these patients underwent color ultrasound examination of lower extremity vein on admission to analyze the incidence of LEDVT. At the same time, the incidence of LEDVT in patients with benign lung diseases on admission was used as control. In order to explore the possible risk factors for LEDVT in these patients with lung cancer, we further analyze the correlations between LEDVT and their clinical features. At the same time, we also analyze the relationship between LEDVT and Plasma D-Dimmer, fibrinogen (FIB), thrombin time (TT), activated partial thrombin time (APTT), prothrombin time (PT) and platelet (PLT) in these patients with lung cancer. RESULTS: Among 231 patients with lung cancer, the incidence rate of LEDVT on admission was 5.2% (12/231), and in 77 patients with benign lung disease, there was none of patients with LEDVT on admission. This result indicated that the admitted incidence rate of LEDVT in patients with lung cancer was significantly higher than that in patients with benign lung disease (P<0.05). Further analysis in patients with lung cancer found that there was higher incidence rate of LEDVT in distant metastasis group (including N3 lymph node metastasis) compared to in non-distant metastasis group (11.29%, 7/62 vs 2.96%, 5/169) (P<0.05). In patients with lung cancer, the median value of D-Dimer in LEDVT group was 1,534 mg/L (369 mg/L-10,000 mg/L), which was significantly higher than that in the non-LEDVT group (539 mg/L, 126 mg/L-1,000 mg/L) (P<0.05). There was no statistically significant difference in FIB, TT, APTT, PT and PLT between these two groups (P>0.05). CONCLUSIONS The overall incidence of LEDVT in our central lung cancer patients was approximately 5%, significantly higher than that in patients with benign lung disease. Lung cancer patients with distant metastasis (including N3 lymph node metastasis) at admission were more likely to develop LEDVT, and these patients with higher D-Dimer values should be considered the possibility of VTE events.
Female ; Humans ; Incidence ; Lower Extremity ; Lung Neoplasms ; surgery ; therapy ; Male ; Middle Aged ; Patient Admission ; Risk Factors ; Tomography, X-Ray Computed ; Venous Thrombosis ; diagnostic imaging ; etiology