Olfactory response of female Bactroceraminax to chemical components of the preference host citrus volatile oils

Lu Liu, Qiong Zhou 한국응용곤충학회 2016 Journal of Asia-Pacific Entomology Vol.19 No.3

Citrus fruit fly Bactrocera minax (Enderlein) (Diptera:Tephritidae) is a devastating pest of citrus plants in China. In order to characterize the behavioral mechanisms and possible chemical cues involved in host selection by female citrus fruit fly, the host plant volatiles was analyzed and Y-tube olfactometer assays were used. Host odor from citrus fruits peels elicited upwind orientation flights followed by landing and egg-laying, demonstrating the essential role of host plant volatiles in B. minax host-finding and oviposition behavior. GC–MS analysis of volatiles from the peels of three varieties citrus fruits, that were Bingtang sweet oranges (Citrus sinensis cv. Bingtang), Satsumas mandarins (Citrus reticulata cv. Satsuma) and Sour oranges (Citrus aurantium), which adult and larval of B. minax preferred to, showed that the major compounds extracted from the basal region were different from those of the distal region to some extent. Furthermore, in Y-tube olfactometer attraction assays, female flieswere significantly attracted (P b 0.05) to four out of the thirteen tested compounds from the citrus volatiles, including nonanal, citral, limonene and linalool. Conversely, furfuryl alcohol and guaiastil significantly repelled females (P b 0.05). The percentage composition of nonanal, citral, limonene and linalool from different regions of the fruits displayed a positive correlation with the numbers of egg marks made by females, whereas furfuryl alcohol and guaiastil displayed a correspondingly negative correlation. These results suggest that the oviposition preference of B. minax females is highly related to the chemical compounds emitted from host fruit peels.

Well-defined nanostructured core–shell magnetic surface imprinted polymers (Fe3O4@SiO2@MIPs) for effective extraction of trace tetrabromobisphenol A from water

Qiong Wu,Minna Li,Zheng Huang,Yanming Shao,Lei Bai,Lincheng Zhou 한국공업화학회 2018 Journal of Industrial and Engineering Chemistry Vol.60 No.-

Magnetic molecular imprinted polymers (MIPs) with well-defined core–shell nanostructure for extracting tetrabromobisphenol A (TBBPA) have been fabricated by surface molecular imprinting method. Fe3O4@SiO2@MIPs exhibit the good adsorption capacity, high recognition ability and fast kinetics to TBBPA. The maximum adsorption capacity of Fe3O4@SiO2@MIPs towards TBBPA is 88.3 mg g−1, which is 2.3 times as high as that of Fe3O4@SiO2@NIPs. Besides, the material has the short equilibrium time (40 min), the rapid magnetic separation (15.6 emu g−1, 20 s) and the high stability (the adsorption efficiency is at least 85% after seven cycles).

Fabrication of Aligned PI/GO Nanofibers for Battery Separators

Qiong Tian,Qiuhong Liu,Kedong Song,Yufan Mei,Jinfeng Peng,Jinfeng Peng,Ji Zhou,Yanhuai Ding 한국섬유공학회 2021 Fibers and polymers Vol.22 No.1

Highly aligned polyimide/graphene oxide (PI/GO) nanofibers were fabricated by using the electrospinning method. As a separator for Li-ion batteries, the PI/GO nanofibers show excellent thermal stability, good wettability toward organicliquid electrolytes and superior electrochemical performance compared to raw PI and commercial battery separators. TheGO nanosheets not only greatly enhance the mechanical strength of the PI matrix, but also increase the resistance to Lidendrites.

Extraction of rare earths using mixtures of sec-octylphenoxy acetic acid and organophosphorus acids

Qiong Jia,Naizhong Song,Xiaowei Zhao,Weihong Zhou,Wuping Liao 한국화학공학회 2010 Korean Journal of Chemical Engineering Vol.27 No.4

The extraction of rare earths from nitrate medium using three organophosphorus acids, 2-ethylhexyl phosphonic acid mono-2-ethylhexyl ester (HEHEHP), di-(2-ethylhexyl) phosphoric acid (D2EHPA), bis(2,4,4-trimethylpentyl)phosphinic acid (Cyanex272), and their mixtures with sec-octylphenoxy acetic acid (CA12) has been studied in detail. The mixtures have different extraction effects on various rare earths. Synergistic extraction effects are only found when light rare earths and yttrium (III) are extracted with mixtures of D2EHPA and CA12. The possibilities of separating the rare earths with these mixtures are investigated according to the extractabilities. It is feasible and advantageous to separate yttrium (III) from the lanthanoids (III) with HEHEHP + CA12 and D2EHPA+CA12 mixtures at proper extractant ratios. The separation of yttrium (III) from heavy rare earths is also possible with mixtures of Cyanex272 and CA12.

Optimized Assembly of Micro-/Meso-/Macroporous Carbon for Li–S Batteries

Qiong Tang,Heqin Li,Min Zuo,Jing Zhang,Yiqin Huang,Peiwen Bai,Jiaqi Xu,Kuan Zhou 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2017 NANO Vol.12 No.2

In order to explore the effect of hierarchical porous carbon on the performances of Li–S batteries, we synthesized three kinds of micro-/meso-/macroporous carbon materials with different pore properties by facile hard-template method. Different from the majority of reports on porous carbon ensuing large specific surface area (SSA) and total pore volume, it was found that in the case of identically high sulfur content, the pore size distribution substantially influences the performances of Li–S batteries rather than the SSA and total pore volume. Furthermore, in the assembly of micro-/meso-/macropores, the micropore volume ratio to the total pore volume is dominant to the capabilities of batteries. Among the samples, the porous carbon carbonized with the precursor of sucrose at 950℃ presents the highest initial discharge specific capacity of 1327 mAh/g and retention of 630 mAh/g over 100 cycles at 0.2C rate along with the best rate capability. This sample possesses the largest micropore volume ratio of 47.54% but a medium SSA of 1217 m2 /g and inferior total pore volume of 0.54 cm3 /g. The abundant micropores effectively improve the conductivity of dispersed sulfur particles, inhibit the loss of sulfur series and enable the cathode to exhibit superior electrochemical performances.

Anti-proliferation Effects of Isorhamnetin on Lung Cancer Cells in Vitro and in Vivo

Li, Qiong,Ren, Fu-Qiang,Yang, Chun-Lei,Zhou, Li-Ming,Liu, Yan-You,Xiao, Jing,Zhu, Ling,Wang, Zhen-Grong Asian Pacific Journal of Cancer Prevention 2015 Asian Pacific journal of cancer prevention Vol.16 No.7

Background: Isorhamnetin (Iso), a novel and essential monomer derived from total flavones of Hippophae rhamnoides that has long been used as a traditional Chinese medicine for angina pectoris and acute myocardial infarction, has also shown a spectrum of antitumor activity. However, little is known about the mechanisms of action Iso on cancer cells. Objectives: To investigate the effects of Iso on A549 lung cancer cells and underlying mechanisms. Materials and Methods: A549 cells were treated with $10{\sim}320{\mu}g/ml$ Iso. Their morphological and cellular characteristics were assessed by light and electronic microscopy. Growth inhibition was analyzed by MTT, clonogenic and growth curve assays. Apoptotic characteristics of cells were determined by flow cytometry (FCM), DNA fragmentation, single cell gel electrophoresis (comet) assay, immunocytochemistry and terminal deoxynucleotidyl transferase nick end labeling (TUNEL). Tumor models were setup by transplanting Lewis lung carcinoma cells into C57BL/6 mice, and the weights and sizes of tumors were measured. Results: Iso markedly inhibited the growth of A549 cells with induction of apoptotic changes. Iso at $20{\mu}g/ml$, could induce A549 cell apoptosis, up-regulate the expression of apoptosis genes Bax, Caspase-3 and P53, and down-regulate the expression of Bcl-2, cyclinD1 and PCNA protein. The tumors in tumor-bearing mice treated with Iso were significantly smaller than in the control group. The results of apoptosis-related genes, PCNA, cyclinD1 and other protein expression levels of transplanted Lewis cells were the same as those of A549 cells in vitro. Conclusions: Iso, a natural single compound isolated from total flavones, has antiproliferative activity against lung cancer in vitro and in vivo. Its mechanisms of action may involve apoptosis of cells induced by down-regulation of oncogenes and up-regulation of apoptotic genes.

A Web-based Survey of Marital Quality and Job Satisfaction among Chinese Nurses

Yan-Qiong Ouyang,Wen-Bin Zhou,Zhen-Fang Xiong,Rong Wang,Sharon R. Redding 한국간호과학회 2019 Asian Nursing Research Vol.13 No.3

Purpose: This study aimed to use a web-based survey to investigate the correlation between job satisfaction and marital quality and to identify the association of demographics with job satisfaction and marital quality. Methods: Married nurses (N = 2,296) completed the questionnaires. Correlations and linear regression analyses were carried out. Results: Both marital quality and job satisfaction were relatively low. Additionally, marital quality was positively correlated with job satisfaction. Age, marital status (in years) and average daily hours spent with spouse had positive impact on job satisfaction. Multiple linear regression analyses showed that age, monthly income, average daily hours spent with spouse and marital quality were positively associated with job satisfaction. Conclusion: Because of the shifts nurses working, there is little time for nurses to spend with their spouses and family. It is recommended that hospital leaders could provide more flexibility with nurses’ shift choices so nurses can arrange their work-life balance better. Other considerations like reducing workload and reducing working hours should be promoted as options. Nurse managers could offer counseling services including strategies to cope with the balance between work and life. This effort could improve job satisfaction and reduce the rate of turnover of nurses.

Prognosis of Eight Chinese Cases of Primary Vaginal Yolk Sac Tumor with a Review of the Literature

Tang, Qiong-Lan,Jiang, Xue-Feng,Yuan, Xiao-Ping,Liu, Yong,Zhang, Lin,Tang, Xiao-Feng,Zhou, Jia-Jia,Li, Hai-Gang,Fang, Jian-Pei,Xue, Lin Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.21

Background: Primary vaginal yolk sac tumor is a rare malignancy in the pediatric population, and a diagnostic challenge and appropriate initial treatment remains unsolved. The aim of this study was to investigate the clinicopathologic features, treatment and prognosis of this tumor. Materials and Methods: Eight cases of primary vaginal yolk sac tumor were reported with a literature review. Results: There were 4 pure yolk sac tumor cases and four mixed germ cell tumors containing yolk sac tumor element, including two cases with embryonal carcinoma and two cases with embryonal carcinoma and dysgerminoma. Partial vaginectomy was performed in four cases and all patients received chemotherapy. 85 cases in literatures were reviewed and 9 cases were misdiagnosed. Follow-up data was available in 77 cases and 5-year overall survival rate was 87.6%. 5-year survival rate of biopsy with chemotherapy, conservative surgery with chemotherapy and radical surgery with chemotherapy was 91.1%, 100% and 28.6%, respectively (p<0.001). Compared to cases without relapse or metastasis after initial treatment, patients with relapse or metastasis had a shorter overall survival (35.6% vs 96.6%, p<0.001). Conclusions: Mixed germ cell tumor containing yolk sac tumor element was not uncommon and partial vaginectomy may be a good choice for primary vaginal mixed yolk sac tumor type to eradicate local tumor cells and provide complete information for pathological diagnosis and postoperative adjuvant therapy.

The Protective Effect of Sodium Hyaluronate on the Cartilage of Rabbit Osteoarthritis by Inhibiting Peroxisome Proliferator-Activated Receptor-Gamma Messenger RNA Expression

Jian-lin Zhou,Shi-qing Liu,Bo Qiu,Qiong-jie Hu,Jiang-hua Ming,Hao Peng 연세대학교의과대학 2009 Yonsei medical journal Vol.50 No.6

Purpose: The purpose of this study was to study the protective effect and influence of sodium hyaluronate (Na- HA) on mRNA expression of peroxisome proliferators-activated receptor gamma (PPAR-γ) in cartilage of rabbit osteoarthritis (OA) model. Materials and Methods: Forty eight white rabbits were randomly divided into A, B, and C groups. Group A was normal control group, B and C groups underwent unilateral anterior cruciate ligament transection (ACLT). The rabbits in group B were injected normal saline after ACLT; and Group C received intraarticular1% sodium hyaluronate (HA) injection 5 weeks after surgery, 0.3 mL once a week. At 11th week after surgery, all the rabbits were sacrificed. The cartilage changes on the medial femoral condyles were graded separately. Cartilage sections were stained with safranin-O and HE, and messenger RNA (mRNA) expression of PPAR-γ was detected by using real time polymerase chain reaction (Real Time-PCR). Results: Cartilage degeneration in group B was significantly more severe than in A and C injection group. The grey value of Safranin- O of B group was higher than A and C groups. Expression of PPAR-γ mRNA in group B was higher than group A and C. Conclusion: This study shows that Na-HA has a protective effect on articular cartilage degeneration, and the inhibitory effect on the PPAR-γ mRNA expression may be one of therapeutic mechanism of Na-HA. Purpose: The purpose of this study was to study the protective effect and influence of sodium hyaluronate (Na- HA) on mRNA expression of peroxisome proliferators-activated receptor gamma (PPAR-γ) in cartilage of rabbit osteoarthritis (OA) model. Materials and Methods: Forty eight white rabbits were randomly divided into A, B, and C groups. Group A was normal control group, B and C groups underwent unilateral anterior cruciate ligament transection (ACLT). The rabbits in group B were injected normal saline after ACLT; and Group C received intraarticular1% sodium hyaluronate (HA) injection 5 weeks after surgery, 0.3 mL once a week. At 11th week after surgery, all the rabbits were sacrificed. The cartilage changes on the medial femoral condyles were graded separately. Cartilage sections were stained with safranin-O and HE, and messenger RNA (mRNA) expression of PPAR-γ was detected by using real time polymerase chain reaction (Real Time-PCR). Results: Cartilage degeneration in group B was significantly more severe than in A and C injection group. The grey value of Safranin- O of B group was higher than A and C groups. Expression of PPAR-γ mRNA in group B was higher than group A and C. Conclusion: This study shows that Na-HA has a protective effect on articular cartilage degeneration, and the inhibitory effect on the PPAR-γ mRNA expression may be one of therapeutic mechanism of Na-HA.

Canola Oil Influence on Azoxymethane-induced Colon Carcinogenesis, Hypertriglyceridemia and Hyperglycemia in Kunming Mice

He, Xiao-Qiong,Cichello, Simon Angelo,Duan, Jia-Li,Zhou, Jin Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.6

Azoxymethane (AOM) is a potent genotoxic carcinogen which specifically induces colon cancer. Hyperlipidemia and diabetes have several influences on colon cancer development, with genetic and environmental exposure aspects. Here, we investigated plasma lipid and glucose concentrations in Kunming mice randomized into four groups; control (no AOM or oil exposure), AOM control, AOM + pork oil, and AOM + canola oil. Aberrant crypt foci (ACF), plasma cholesterol, plasma triglyceride, plasma glucose and organ weight were examined 32 weeks after AOM injection. Results revealed that AOM exposure significantly increased ACF number, plasma triglyceride and glucose level. Further, male mice displayed a much higher plasma triglyceride level than female mice in the AOM control group. Dietary fat significantly inhibited AOM-induced hypertriglyceridemia, and canola oil had stronger inhibitory effect than pork oil. AOM-induced hyperglycemia had no sex-difference and was not significantly modified by dietary fat. However, AOM itself not change plasma cholesterol level. AOM significantly increased liver and spleen weight in male mice, but decreased kidney weight in female mice. On the other hand, mice testis weight decreased when fed canola oil. AOM could induce colorectal carcinogenesis, hypertriglyceridemia and hyperglycemia in Kunming mice at the same time, with subsequent studies required to investigate their genome association.