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Yang JT, Xu JY, Jiao J, Zhang R, Han SF, Qin LQ. [Effects of leucine on adipogenesis in 3T3-L1 preadipocytes during and after differentiation]. ZHONGHUA YU FANG YI XUE ZA ZHI [CHINESE JOURNAL OF PREVENTIVE MEDICINE] 2016; 50:535-40. [PMID: 27256735 DOI: 10.3760/cma.j.issn.0253-9624.2016.06.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To observe the effects of leucine on adipogenesis in 3T3-L1 preadipocyte during and after differentiation, and to investigate possible mechanisms. METHODS Respectively, 0.0 (control), 0.5, 1.0 and 2.0 mmol/L leucine was added in 3T3-L1 cells and cell proliferation was measured by MTT. Then, 3T3-L1 preadipocyte was induced to differentiate. Leucine was added during whole differentiation period, or after differentiation for 4 days. The cells were stained with Oil Red O dye to observe lipid droplet. The culture media were collected and used to determine glycerol contents. Meanwhile, protein expressions related to lypolytic enzymes, leptin signaling pathway were determined by Western blot. RESULTS MTT result showed that cell viabilities were (100.00±12.10)%, (102.73±12.38)%, (103.94±14.65)%, (108.70±5.05)% in 0.0, 0.5, 1.0 and 2.0 mmol/L leucine groups, respectively, there were no significant differences in cell proliferation among 4 groups (F=1.07, P=0.383). When 0.0, 0.5, 1.0 and 2.0 mmol/L leucine was added during differentiation, the relative number of lipid droplet was 1.00±0.06, 0.94±0.09, 0.82±0.08 and 0.79±0.04, respectively (F=11.74, P<0.001), and it was significantly lower in 1.0 and 2.0 mmol/L leucine groups than in control group (P=0.002 and P<0.001, respectively). There was no significant difference in lipid droplet when leucine was added after differentiation (F=0.16, P=0.924). When leucine was added during differentiation, the increment of glyceride contents in medium was (65.04 ± 11.75), (71.45 ± 23.71), (79.37 ± 17.63) and (110.32 ± 25.36) μmol/L, respectively (F=2.92, P=0.100). And it was significantly higher in 2.0 mmol/L leucine group (110.32 ± 25.36) μmol/L than in control group (65.04 ± 11.75) μmol/L (t=2.73, P=0.026). No significant difference of the increment of glyceride contents among 4 groups was observed when leucine was added after differentiation (F=0.80, P=0.528). Western blot results showed that leucine treatment during differentiation upregulated expression level of hormone-sensitive lipase phosphorylation (after 0.0 and 2.0 mmol/L leucine treatment,the protein levels were 1.00 ± 0.08 vs. 2.54 ± 0.27, P<0.001) , and downregulated the protein expression levels of perilipin A, leptin and leptin-related pathway, such as leptin receptor, Janus kinase 2 and suppressor of cytokine signaling-3 (after 0.0 and 2.0 mmol/L leucine was added, the protein levels were (1.00 ± 0.03) vs. (0.31 ± 0.07) , (1.00 ± 0.08) vs. (0.22±0.07) , (1.00±0.07) vs. (0.21 ± 0.04) , (1.00 ± 0.03) vs. (0.35 ± 0.05) , (1.00 ± 0.06) vs. (0.34 ± 0.05) , P<0.001). Leucine treatment after differentiation had no effects on these protein expressions (all P>0.05). CONCLUSION Leucine inhibits adipogenesis during 3T3-L1 preadipocyte differentiation by the regulation of lypolytic enzymes and leptin signaling pathway; however, leucine has no effect on adipogenesis when differentiation completed.
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Jiao J, Lu Q, Forster R, Zhou C, Wang M, Kang J, Tan Z. Age and feeding system (supplemental feeding versus grazing) modulates colonic bacterial succession and host mucosal immune maturation in goats1. J Anim Sci 2016; 94:2506-18. [DOI: 10.2527/jas.2015-0081] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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Li YH, Yu SF, Gu GZ, Chen GS, Zhou WH, Wu H, Jiao J. [Factors influencing electrocardiogram results in workers exposed to noise in steel-making and steel-rolling workshops of an iron and steel plant]. ZHONGHUA LAO DONG WEI SHENG ZHI YE BING ZA ZHI = ZHONGHUA LAODONG WEISHENG ZHIYEBING ZAZHI = CHINESE JOURNAL OF INDUSTRIAL HYGIENE AND OCCUPATIONAL DISEASES 2016; 34:111-4. [PMID: 27014888 DOI: 10.3760/cma.j.issn.1001-9391.2016.02.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To investigate the factors influencing the electrocardiogram results in the workers exposed to noise in steel-making and steel rolling workshops of an iron and steel plant. METHODS From September to December, 2013, cluster sampling was used to select 3 150 workers exposed to noise in the steel-making and steel-rolling workshops of an iron and steel plant, and a questionnaire survey and physical examinations were performed. The number of valid workers was 2 915, consisting of 1 606 workers in the steel-rolling workshop and 1 309 in the steel-making workshop. The electrocardiogram results of the workers in steel-making and steel-rolling workshops were analyzed. RESULTS The overall abnormal rate of electrocardiogram was 26.35%, and the workers in the steel-making workshop had a significantly higher abnormal rate of electrocardiogram than those in the steel-rolling workshop(32.24% vs 21.54%, P<0.05). Male workers had a significantly higher abnormal rate of electrocardiogram than female workers(27.59% vs 18.61%, P<0.05). The workers with a drinking habit had a significantly higher abnormal rate of electrocardiogram than those who did not drink(28.17% vs 23.75%, P<0.05). The workers exposed to high temperature had a significantly higher abnormal rate of electrocardiogram than those who were not exposed to high temperature(29.43% vs 20.14%, P<0.05). The abnormal rates of electrocardiogram in the workers with cumulative noise exposure levels of <90, 90~94, 95~99, 100~104, and 105~113 dB(A)·year were 21.21%, 21.76%, 26.50%, 27.27%, and 32.16%, respectively, with significant differences between any two groups(P<0.05). The multivariate logistic regression analysis showed that a cumulative noise exposure of 105-113 dB(A)·year(OR=1.36, 95% CI: 1.03~1.80), a drinking habit(OR=1.20, 95% CI: 1.01~1.43), and high temperature(OR=1.60, 95% CI: 1.32~1.92) were the risk factors for abnormal electrocardiogram results. CONCLUSION High cumulative noise exposure, alcohol consumption, and high temperature may affect the abnormal rate of electrocardiogram in the workers exposed to noise in steel-making and steel-rolling workshops.
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Jiao J, Wu J, Lv Z, Sun C, Gao L, Yan X, Cui L, Tang Z, Yan B, Jia Y. Methylation-sensitive amplified polymorphism-based genome-wide analysis of cytosine methylation profiles in Nicotiana tabacum cultivars. GENETICS AND MOLECULAR RESEARCH 2015; 14:15177-87. [PMID: 26634481 DOI: 10.4238/2015.november.25.6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
This study aimed to investigate cytosine methylation profiles in different tobacco (Nicotiana tabacum) cultivars grown in China. Methylation-sensitive amplified polymorphism was used to analyze genome-wide global methylation profiles in four tobacco cultivars (Yunyan 85, NC89, K326, and Yunyan 87). Amplicons with methylated C motifs were cloned by reamplified polymerase chain reaction, sequenced, and analyzed. The results show that geographical location had a greater effect on methylation patterns in the tobacco genome than did sampling time. Analysis of the CG dinucleotide distribution in methylation-sensitive polymorphic restriction fragments suggested that a CpG dinucleotide cluster-enriched area is a possible site of cytosine methylation in the tobacco genome. The sequence alignments of the Nia1 gene (that encodes nitrate reductase) in Yunyan 87 in different regions indicate that a C-T transition might be responsible for the tobacco phenotype. T-C nucleotide replacement might also be responsible for the tobacco phenotype and may be influenced by geographical location.
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Jiao J, Davis III JM, Cha SS, Luedtke CA, Vincent A, Oh TH. Association of rheumatic diseases with symptom severity, quality of life, and treatment outcome in patients with fibromyalgia. Scand J Rheumatol 2015; 45:49-56. [DOI: 10.3109/03009742.2015.1052553] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Jiao J, Moudon AV, Kim SY, Hurvitz PM, Drewnowski A. Health Implications of Adults' Eating at and Living near Fast Food or Quick Service Restaurants. Nutr Diabetes 2015; 5:e171. [PMID: 26192449 PMCID: PMC4521173 DOI: 10.1038/nutd.2015.18] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Revised: 04/25/2015] [Accepted: 05/03/2015] [Indexed: 11/30/2022] Open
Abstract
Background: This paper examined whether the reported health impacts of frequent eating at a fast food or quick service restaurant on health were related to having such a restaurant near home. Methods: Logistic regressions estimated associations between frequent fast food or quick service restaurant use and health status, being overweight or obese, having a cardiovascular disease or diabetes, as binary health outcomes. In all, 2001 participants in the 2008–2009 Seattle Obesity Study survey were included in the analyses. Results: Results showed eating ⩾2 times a week at a fast food or quick service restaurant was associated with perceived poor health status, overweight and obese. However, living close to such restaurants was not related to negative health outcomes. Conclusions: Frequent eating at a fast food or quick service restaurant was associated with perceived poor health status and higher body mass index, but living close to such facilities was not.
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Peng M, Jiao J. Comments on: "posterior percutaneous reduction and fixation of thoraco-lumbar burst fractures" by L. Proietti, L. Scaramuzzo, G.R. Schirò et al. published in Orthop Traumatol Surg Res 2014;100:455-60. Orthop Traumatol Surg Res 2015; 101:127. [PMID: 25577601 DOI: 10.1016/j.otsr.2014.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Accepted: 12/08/2014] [Indexed: 02/02/2023]
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Lampert LF, Barnum A, Smith SW, Conley JF, Jiao J. Phase transitions and in situ dynamics of crystal grain formation of alumina nanotubes templated by vertically aligned carbon nanotubes. RSC Adv 2015. [DOI: 10.1039/c5ra12337b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Vertically aligned alumina nanotubes created by atomic layer deposition onto carbon nanotubes scaffolds are synthesized and analyzed for phase transitionsviathermal annealing andin situelectron-irradiation induced crystallization.
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Jiao J, Zhao Q, Li X, Liang GF, Huang XP, Luo XG. Enhancement of focusing energy of ultra-thin planar lens through plasmonic resonance and coupling. OPTICS EXPRESS 2014; 22:26277-26284. [PMID: 25401660 DOI: 10.1364/oe.22.026277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A metal-insulator-metal (MIM) structure which is used to enhance the focusing energy of planar lens is developed in this work. The top of the MIM structure is formed by circularly arranged V-shaped nanoantennas whose double resonance effect makes it possible for light to obtain great phase changes within an ultra-thin area. The middle and bottom of the structure is medium and gold film layer respectively. This structure produces plasmonic coupling between the antenna layer and gold film, thus reducing Ohmic loss and enhancing the effect of plasmonic excitation. When the distance between the antenna layer with a thickness of 30 nm and gold film is 88 nm, and the thickness of gold film is 20 nm, the enhancement of plasmonic coupling reaches to the strongest when the focusing intensity is 1.33 times higher than the lens only. With the advantages of small size, ultra-thin, great phase changes and high-efficient focusing ability, the enhanced plasmonic coupling lens structure can be widely applied in photoetching, and integrated optics.
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Jiao J, Fang Y, Wang T, Wang Z, Zhou M, Wang X. Epidemiologic investigation of polycystic ovarian syndrome (PCOS) in Han ethnic women of reproductive age in Liaoning Province, China. CLIN EXP OBSTET GYN 2014. [DOI: 10.12891/ceog16282014] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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Jiao J, Fang Y, Wang T, Wang Z, Zhou M, Wang X. Epidemiologic investigation of polycystic ovarian syndrome (PCOS) in Han ethnic women of reproductive age in Liaoning Province, China. CLIN EXP OBSTET GYN 2014; 41:304-309. [PMID: 24992782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
OBJECTIVE To determine the incidence of polycystic ovary syndrome (PCOS) among Han women of reproductive age in Liaoning Province in Northeastern China, based on the Revised Rotterdam 2003 criteria. MATERIALS AND METHODS A retrospective cohort study was carried out on 1,600 women using questionnaires, physical examination, ultrasonography, and biochemical indices (aged = 19 to 45 years; n = 1,600). PCOS patients were identified using the Revised Rotterdam 2003 criteria. RESULTS A total of 132 Han women of reproductive age were diagnosed with PCOS, with a prevalence of 8.25%. The prevalence of menstrual dysfunction was as follows: 97 patients (73.48%) had abnormal menstruation, three (2.27%) had polymenorrhea, and 94 (71.21%) had oligomenorrhea. Up to 64 patients (48.48%) had androgen excess, 42 (31.82%) had biochemical evidence of androgen excess, and 34 (25.76%) had clinical androgen excess. Up to 34 patients (25.76%) were obese (body mass index [BMI] > or = 25) and 19 (14.39%) had hirsutism (F-G scoring > or = 6). A total of 127 patients (96.22%) were diagnosed with PCOS via ultrasonography, 67 of whom (50.76%) had a unilateral polycystic ovary and 60 (45.46%) had bilateral polycystic ovaries. CONCLUSIONS The prevalence of PCOS in this study population was 8.25%, with an infertility rate of 27.8%. The classical manifestation of PCOS is PCO, abnormal menstruation, and obesity. The high-risk factors of PCOS include high free testosterone index, homeostasis model assessment-insulin resistance (HOMA-IR), increased serum testosterone and androstenedione, decreased sex hormone-binding globulin, long history of infertility, menarche later than 16 years old, and failure to have regular menstruation within two years.
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Xing X, Cai W, Shi H, Wang Y, Li M, Jiao J, Chen M. The prognostic value of CDKN2A hypermethylation in colorectal cancer: a meta-analysis. Br J Cancer 2013; 108:2542-8. [PMID: 23703248 PMCID: PMC3694241 DOI: 10.1038/bjc.2013.251] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Background: The prognostic value of CDKN2A promoter hypermethylation in colorectal cancer remains controversial. We systematically reviewed the evidence for assessment of CDKN2A methylation in colorectal cancer to elucidate this issue. Methods: Pubmed, Embase and ISI web of knowledge were searched to identify eligible studies to evaluate the association of CDKN2A hypermethylation and overall survival and clinicopathological features of colorectal cancer patients. Combined hazard ratios (HRs) or odds ratios (ORs) with 95% confidence interval (95% CI) were pooled using a random-effects model. Results: A total of 11 studies encompassing 3440 patients were included in the meta-analysis. CDKN2A hypermethylation had an unfavourable impact on OS of patients with colorectal cancer (HR 1.65, 95% CI 1.29–2.11). Subgroup analysis indicated that CDKN2A hypermethylation was significantly correlated with OS in Europe (HR 1.49; 95% CI 1.28–1.74) and Asia (HR 3.30; 95% CI 1.68–6.46). Furthermore, there was a significant association between CDKN2A hypermethylation and lymphovascular invasion (OR 1.68, 95% CI 1.15–2.47), lymph node metastasis (OR 1.68, 95% CI 1.09–2.59) and proximal tumour location (OR 2.09, 95% CI 1.34–3.26) of colorectal cancer. Conclusion: This meta-analysis indicated that CDKN2A hypermethylation might be a predictive factor for unfavourable prognosis of colorectal cancer patients.
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Chi KN, Tolcher A, Lee P, Rosen PJ, Kollmannsberger CK, Papadopoulos KP, Patnaik A, Molina A, Jiao J, Pankras C, Kaiser B, Bernard A, Tran N, Acharya M. Effect of abiraterone acetate plus prednisone on the pharmacokinetics of dextromethorphan and theophylline in patients with metastatic castration-resistant prostate cancer. Cancer Chemother Pharmacol 2012; 71:237-44. [PMID: 23064959 DOI: 10.1007/s00280-012-2001-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Accepted: 09/29/2012] [Indexed: 10/27/2022]
Abstract
PURPOSE To assess the effect of abiraterone acetate plus prednisone on the pharmacokinetics of dextromethorphan HBr (CYP2D6 substrate) and theophylline (CYP1A2 substrate) in patients with metastatic castration-resistant prostate cancer (mCRPC). METHODS Men with progressive metastatic mCRPC who failed gonadotropin-releasing hormone therapy and ≥1 lines of chemotherapy were enrolled. Patients received two doses of dextromethorphan HBr-30 mg (n = 18; group A) or theophylline-100 mg (n = 16; group B) under fasting conditions; one dose on cycle 1, day -8, and the other dose on cycle 1, day 8. Only patients with extensive CYP2D6 metabolizing status were assigned to group A. All patients received continuous daily oral abiraterone acetate (1,000 mg) plus prednisone (10 mg) starting on cycle 1, day 1. RESULTS Coadministration of abiraterone acetate plus prednisone increased the systemic exposure of dextromethorphan by approximately 100%. Ratios of geometric means for maximum plasma concentration (C(max)) (275.36%) and area under plasma concentration-time curves from time 0 to 24 h (AUC(24h)) (268.14%) of dextromethorphan were outside the bioequivalence limit. The pharmacokinetics of theophylline was unaltered following coadministration of abiraterone acetate plus prednisone. Ratios of geometric means [C(max); 102.36% and AUC(24h); 108.03%] of theophylline exposure parameters were within the bioequivalence limit. The safety profile of abiraterone acetate was consistent with reported toxicities. CONCLUSION Abiraterone acetate plus prednisone increased the exposure of dextromethorphan, suggesting a need for caution when coadministrating with known CYP2D6 substrates. The pharmacokinetics of theophylline was unaffected when coadministered with abiraterone acetate plus prednisone.
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Abstract
A 69-year-old man presented with multiple spontaneous bruises in the past 2 weeks. Several large-sized hematomas were found on examination. The initial investigation revealed a prolonged activated partial thromboplastin time (aPTT) with normal platelet count and international normalized ratio. Further investigation revealed a low factor VIII activity secondary to presence of factor VIII inhibitor, making the diagnosis of acquired hemophilia A. Further work-up revealed that pernicious anemia was present and acted as an associated disease. After steroids therapy, his aPTT was normalized and the factor VIII inhibitor titer became undetectable. 2 months later, a relapse occurred and new hematomas appeared at his retropharyngeal space and left arm. His bleeding was controlled by administration of recombinant factor VIIa, and a combined therapy of intravenous steroids and rituximab was given to eradicate the inhibitor. The approach to workup of bleeding disorders as well as treatment of acquired hemophilia A are herein discussed.
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Acharya M, Bernard A, Gonzalez M, Jiao J, De Vries R, Tran N. Open-label, phase I, pharmacokinetic studies of abiraterone acetate in healthy men. Cancer Chemother Pharmacol 2012; 69:1583-90. [PMID: 22526411 PMCID: PMC3362727 DOI: 10.1007/s00280-012-1865-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2012] [Accepted: 03/26/2012] [Indexed: 11/30/2022]
Abstract
Purpose To evaluate pharmacokinetics, safety, and tolerability of abiraterone acetate (AA) in healthy men. Methods Two phase I studies (dose-escalation study and dose-proportionality study) were conducted in healthy men aged 18–55 years. All subjects received 4 consecutive single doses of AA (250, 500, 750 and 1,000 mg). The dose-escalation study subjects (N = 33) received AA doses in a sequential manner, starting with the lowest dose. The dose-proportionality study subjects (N = 32) were randomly allocated (1:1:1:1) to receive each of the 4 doses in a four-way crossover design. Results A dose-related increase in abiraterone exposure was observed in both studies. Over the evaluated dose range, the mean abiraterone maximum plasma concentrations increased from 26 to 112 ng/mL in dose-escalation study and from 40 to 125 ng/mL in dose-proportionality study; the mean area under the plasma concentration–time curve from 0 to the last measurable plasma concentration increased from 155 to 610 ng.h/mL in dose-escalation study, and from 195 to 607 ng.h/mL in dose-proportionality study. In the dose-proportionality study, abiraterone exposure was dose proportional between 1,000 and 750 mg doses; however, the exposure was slightly greater than dose proportional when exposures at 500 and 250 mg doses were compared with the exposure at 1,000 mg. Single doses of AA were well tolerated in healthy men, and safety profile was consistent with its known toxicities in CRPC patients. Conclusion Systemic exposure to abiraterone increased with increasing doses of AA (250–1,000 mg) in healthy men; AA was well tolerated in this population.
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Marbury T, Stonerock R, Tran N, Gonzalez M, Jiao J, Breeding J, Haqq C, Molina A, Acharya M. 7057 POSTER A Phase 1 Single Dose Open-label Reduced/staged Pharmacokinetic (PK) and Safety Study of Abiraterone Acetate (AA) in Men With Impaired Renal Function. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)72008-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Colombo N, Del Campo J, Sehouli J, Sessa C, Bidzinski M, Nieto A, Jiao J, Kurzedei^ C, Boman K, Gonzalez-Martin A. 8004 ORAL Safety and Efficacy Outcomes in Heavily and Non-heavily Pretreated Patients With Recurrent Ovarian Cancer (ROC) After Single-agent Trabectedin Treatment – Pooled Analysis of Phase II Trials. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)72092-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Chi K, Tolcher A, Lee P, Rosen P, Molina A, Jiao J, Bernard A, Tran N, Acharya M. 7058 POSTER Abiraterone Acetate Plus Prednisone in Patients With Metastatic Castration-Resistant Prostate Cancer (mCRPC) – a Drug-Drug Interaction (DDI) Study With Dextromethorphan HBr and Theophylline. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)72009-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Marbury T, Stonerock R, Acharya M, Gonzalez M, Jiao J, Breeding J, Haqq C, Molina A, Tran N. 7055 POSTER A Phase 1 Single-dose Open-label Pharmacokinetic (PK) Study of Abiraterone Acetate (AA) in Male Subjects With Mild or Moderate Hepatic Impairment. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)72006-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Qiu A, Fowler SP, Jiao J, Kiener D, Bahr DF. Time-dependent contact behavior between diamond and a CNT turf. NANOTECHNOLOGY 2011; 22:295702. [PMID: 21673376 DOI: 10.1088/0957-4484/22/29/295702] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The elastic and adhesive properties of nominally vertically aligned carbon nanotube (CNT) turfs have been measured using nanoindentation. The perceived stiffness of a CNT turf is dependent on the unloading rate, which decreases at slower unloading rates. Depth-controlled nanoindentation was used to examine adhesion effects. Adhesive loads between the turf and the probe tip increased as the time the tip is in contact with the turf increased. As these effects could be from either more tubes coming into contact with the tip due to relaxation and motion of CNTs relative to one another or each tube in contact increasing its adhesive behavior and sub-contact stiffness due to tube-tube interactions within the turf, electrical resistance measurements during nanoindentation were carried out. When the tip is held at a fixed nominal depth, the current remains constant while the contact load decreases, suggesting the number of tubes in contact with the tip stays constant with time while the relaxation mechanisms in the turf occur at positions lower than the contact surface. These observations, in conjunction with in situ TEM compression test of CNT arrays, are used to describe the relative effects the various length and time scales may have on the perceived properties measured during experiments, including elastic modulus and adhesion for gecko-like dry adhesives.
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Jiao J, Yuan T, Zhou Y, Xie W, Zhao Y, Zhao J, Ouyang H, Pang D. Analysis of myostatin and its related factors in various porcine tissues. J Anim Sci 2011; 89:3099-106. [PMID: 21571901 DOI: 10.2527/jas.2010-3827] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Myostatin is expressed in skeletal muscle tissue where it functions to suppress myoblast proliferation and myofiber hypertrophy. Recently, myostatin was detected in the tendon, mammary gland, and adipose tissue of mice. We sought to determine whether myostatin is expressed in the liver, spleen, lung, and kidney of pigs. Real-time PCR and Western blots demonstrated that myostatin, follistatin, decorin, and activin receptor IIB (ActRIIB) mRNA and proteins were expressed in skeletal muscle, heart muscle, and adipose tissue, and also in liver, spleen, lung, kidney, and cultured fibroblasts. The relative abundance of myostatin was closely related to follistatin and decorin in porcine tissues. Immunohistochemical analysis further demonstrated the presence of myostatin, follistatin, and decorin in the skeletal muscle, adipose tissue, heart muscle, liver, spleen, lung, and kidney of pigs. These results suggest that myostatin could be associated with certain functions of the internal organs, such as energy metabolism or fibrosis. We conclude that myostatin is a factor broadly expressed in the internal organs and muscle tissues of pigs.
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Jiao J, Xiang H, Liao Q. Recent advancement in nonsteroidal aromatase inhibitors for treatment of estrogen-dependent breast cancer. Curr Med Chem 2011; 17:3476-87. [PMID: 20738251 DOI: 10.2174/092986710792927877] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2010] [Accepted: 07/06/2010] [Indexed: 11/22/2022]
Abstract
Estrogen-dependent breast cancer (EDBC) is a kind of common malignant tumor in postmenopausal women with growing tendency in recent years. Aromatase (AR) is the key enzyme responsible for estrogen biosynthesis and has been considered as an important target for designing inhibitors as potent therapeutic agents for EDBC. AR inhibitors (AIs) are divided into steroidal and nonsteroidal compounds, and the latter shows high inhibitory potency against AR. This review summarizes recent advancement in nonsteroidal AIs.
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Shi MF, Jiao J, Lu WG, Ye F, Ma D, Dong QG, Xie X. Identification of cancer stem cell-like cells from human epithelial ovarian carcinoma cell line. Cell Mol Life Sci 2010; 67:3915-25. [PMID: 20549538 PMCID: PMC11115598 DOI: 10.1007/s00018-010-0420-9] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2010] [Revised: 04/23/2010] [Accepted: 05/25/2010] [Indexed: 12/21/2022]
Abstract
Cancer stem cells (CSCs) play an important role in the development, invasion, and drug resistance of carcinoma, but the exact phenotype and characteristics of ovarian CSCs are still disputable. In this study, we identified cancer stem cell-like cells (CSC-LCs) and investigated their characteristics from the ovarian adenocarcinoma cell line 3AO. Our results showed that CSC-LCs were enriched in sphere-forming test and highly expressed CD44(+)CD24⁻. The spheres and CD24⁻ cells possessed strong tumorigenic ability by transplantation into nonobese diabetic/severe combined immunodeficient mice. CD44(+)CD24⁻ cells expressed stem cell markers and differentiated to CD44(+)CD24(+) cells by immunofluorescence assay and fluorescence-activated cell-sorting analysis. In vitro experiments verified that CD44(+)CD24⁻ cells were markedly resistant to carboplatin and paclitaxol. In conclusion, our study identifies the CD44(+)CD24⁻ phenotype, self-renewal, high tumorigenicity, differentiation potential, and drug resistance of ovarian CSC-LCs. Our findings may provide the evidence needed to explore a new strategy in the treatment of ovarian cancer.
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Manikhas GM, Dirix L, Vermorken JB, Park K, Jain M, Thertulien R, Gonzalez M, Jiao J, Parekh TV, Staddon AP. A single-blind, placebo-controlled, sequential design study evaluating the potential effects of trabectedin on the QT intervals. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.e13096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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75
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Hamdan A, Cho J, Johnson R, Jiao J, Bahr D, Richards R, Richards C. Evaluation of a thermal interface material fabricated using thermocompression bonding of carbon nanotube turf. NANOTECHNOLOGY 2010; 21:015702. [PMID: 19946149 DOI: 10.1088/0957-4484/21/1/015702] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
In this work a thermal interface material fabricated by thermocompression bonding of vertically aligned carbon nanotube turf (VACNT) to metallized substrates was characterized. The VACNT structure was fabricated onto silicon substrates using chemical vapor deposition. The structures were then transferred to metallized substrates using thermocompression bonding. The resulting structure consisted of VACNT turf sandwiched between two layers of Au. Two configurations of VACNT, full coverage and patterned, were fabricated and tested. In addition, the thermal interface resistance of structures at intermediate steps in the thermocompression bonding process were measured. For the full coverage turf a thermal interface resistance of 1.082 cm(2) degrees C W(-1) at an applied load of 1 N was measured, while a thermal interface resistance of 0.044 cm(2) degrees C W(-1) at a load of 1 N was measured for the patterned turf configuration.
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