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Kuegler A, Schatz S, Vander Beeken S, Jiang D, Rück A, De Geest B, Hawkins P, Scharffetter-Kochanek K, Anca S. 736 β 2 integrin-dependent activation of NOX2 oxidase in wound macrophages is required for physiological wound healing. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.02.779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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House R, Krajnak K, Jiang D. Factors affecting finger and hand pain in workers with HAVS. Occup Med (Lond) 2016; 66:292-5. [PMID: 26928857 DOI: 10.1093/occmed/kqw022] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Pain and its management are important aspects of hand-arm vibration syndrome (HAVS). AIMS To determine the factors associated with finger and hand pain in workers with HAVS and, specifically, to assess the impact of several neurological variables as well as the vascular component of HAVS, grip strength and age. METHODS We assessed men with HAVS at a hospital occupational medicine clinic over 2 years. Subjects scored finger and hand pain separately using the Borg Scale (0-10). The possible predictors we evaluated included the Stockholm Neurological Scale (SNS) and Stockholm Vascular Scale (SVS) stages, current perception threshold (CPT), carpal tunnel syndrome (CTS), ulnar neuropathy, grip strength and age. We carried out nerve conduction testing to confirm the presence of CTS and ulnar neuropathy and measured CPT in the fingers at 2000 Hz, 250 Hz and 5 Hz corresponding to A-beta (large myelinated), A-delta (small myelinated) and C (unmyelinated) fibres, respectively. We calculated Spearman rank correlations to examine the relation between finger and hand pain and possible predictor variables. RESULTS Among the 134 subjects, the median (25th-75th percentile) pain scores were 6 (4-8) for the fingers and 5 (1-7) for the hands. We found statistically significant correlations with finger pain for the SVS stage (r = 0.239; P < 0.01) and CTS (r = 0.184; P < 0.05). The only statistically significant correlation identified for hand pain was a negative correlation with grip strength (r = -0.185; P < 0.05). CONCLUSIONS Management of finger and hand pain in HAVS should focus on the correlates we have identified.
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Pai I, Rojas P, Jiang D, Obholzer R, Coward T. The use of 3D printed external and internal templates for Bonebridge implantation - technical note. Clin Otolaryngol 2016; 42:1118-1120. [DOI: 10.1111/coa.12599] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/16/2015] [Indexed: 11/29/2022]
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Ren Y, Han C, Wang J, Jia Y, Kong L, Eerdun T, Wu L, Jiang D. hBMP-7 induces the differentiation of adipose-derived mesenchymal stem cells into osteoblast-like cells. GENETICS AND MOLECULAR RESEARCH 2016; 15:gmr8791. [DOI: 10.4238/gmr.15038791] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Webb K, Connor S, Wilson K, Cooper S, Jiang D. Tough choices: The challenges of cochlear implantation when there is 'something to lose'. Cochlear Implants Int 2015; 16 Suppl 1:S50-2. [PMID: 25614270 DOI: 10.1179/1467010014z.000000000236] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Zhu HW, Jiang D, Xie ZY, Zhou MH, Sun DY, Zhao YG. Effects of stathmin 1 silencing by siRNA on sensitivity of esophageal cancer cells Eca-109 to paclitaxel. GENETICS AND MOLECULAR RESEARCH 2015; 14:18695-702. [PMID: 26782519 DOI: 10.4238/2015.december.28.18] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We investigated the effects of stathmin 1 (STMN1) silencing by small interfering (siRNA) on the sensitivity of esophageal cancer cells Eca-109 to paclitaxel. STMN1 siRNA was transiently transfected into Eca-109 cells. The effects of transfection were detected by quantitative polymerase chain reaction and western blotting. The effects of STMN1 silencing by siRNA on the sensitivity of esophageal cancer cells Eca-109 to paclitaxel was tested by MTT and colony formation assays. Hoechst 33258 nuclear staining was used to investigate the differences in Eca-109 cell apoptosis induced by paclitaxel. STMN1 siRNA was successfully transfected and the expression of STMN1 was inhibited. The sensitivity of STMN1 siRNA-transfected Eca-109 cells to paclitaxel was significantly increased (P < 0.01). The apoptosis of Eca-109 cells significantly increased following treatment with paclitaxel (P < 0.01). STMN1 silencing by siRNA may enhance the sensitivity of esophageal cancer cells Eca-109 to paclitaxel and induce apoptosis.
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Jiang D, Mierzwa M, Huth B, Xie C, Barrett W, Redmond K, Forster N. Does Time of Daily Treatment Matter in Radiation Therapy for Head and Neck Cancer? Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1434] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Xu Q, Zhou Q, Shen K, Jiang D, Ni L. Nanostructured epoxy thermoset templated by an amphiphilic PCL-b
-PES-b
-PCL triblock copolymer. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/polb.23917] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Ali E, Jiang D. 53: Is Caffeine a Risk Factor for Osteopenia of Prematurity? Paediatr Child Health 2015. [DOI: 10.1093/pch/20.5.e52] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Jiang D, Zhou Q, Fan Q, Ni L. Curing behavior and thermal performance of cyanate ester resin modified by Poly(methyl-benzene diethynylbenzene)Siliane. Polym Bull (Berl) 2015. [DOI: 10.1007/s00289-015-1398-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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111
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Smirnov A, Sulaberidze G, Borisevich V, Zeng S, Jiang D. Transient processes in Q-cascades for separation of multicomponent mixtures. Chem Eng Sci 2015. [DOI: 10.1016/j.ces.2014.12.063] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Li F, Zhang D, Li Y, Jiang D, Luo S, Du N, Chen W, Deng L, Zeng C. Whole genome characterization of hepatitis B virus quasispecies with massively parallel pyrosequencing. Clin Microbiol Infect 2015; 21:280-7. [DOI: 10.1016/j.cmi.2014.10.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Revised: 10/04/2014] [Accepted: 10/10/2014] [Indexed: 01/19/2023]
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Jiang D, Khunjar WO, Wett B, Murthy SN, Chandran K. Characterizing the metabolic trade-off in Nitrosomonas europaea in response to changes in inorganic carbon supply. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:2523-2531. [PMID: 25546702 DOI: 10.1021/es5043222] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The link between the nitrogen and one-carbon cycles forms the metabolic basis for energy and biomass synthesis in autotrophic nitrifying organisms, which in turn are crucial players in engineered nitrogen removal processes. To understand how autotrophic nitrifying organisms respond to inorganic carbon (IC) conditions that could be encountered in engineered partially nitrifying systems, we investigated the response of one of the most extensively studied model ammonia oxidizing bacteria, Nitrosomonas europaea (ATCC19718), to three IC availability conditions: excess gaseous and excess ionic IC supply (40× stoichiometric requirement), excess gaseous IC supply (4× stoichiometric requirement in gaseous form only), and limiting IC supply (0.25× stoichiometric requirement). We found that, when switching from excess gaseous and excess ionic IC supply to excess gaseous IC supply, N. europaea chemostat cultures demonstrated an acclimation period that was characterized by transient decreases in the ammonia removal efficiency and transient peaks in the specific oxygen uptake rate. Limiting IC supply led to permanent reactor failures (characterized by biomass washout and failure of ammonia removal) that were preceded by similar decreases in the ammonia removal efficiency and peaks in the specific oxygen uptake rate. Notably, both excess gaseous IC supply and limiting IC supply elicited a previously undocumented increase in nitric and nitrous oxide emissions. Further, gene expression patterns suggested that excess gaseous IC supply and limiting IC supply led to consistent up-regulation of ammonia respiration genes and carbon assimilation genes. Under these conditions, interrogation of the N. europaea proteome revealed increased levels of carbon fixation and transport proteins and decreased levels of ammonia oxidation proteins (active in energy synthesis pathways). Together, the results indicated that N. europaea mobilized enhanced IC scavenging pathways for biosynthesis and turned down respiratory pathways for energy synthesis, when challenged with excess gaseous IC supply and limiting IC supply.
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Poon MW, Yan L, Jiang D, Qin P, Tse HF, Wong IY, Wong DSH, Tergaonkar V, Lian Q. Inhibition of RAP1 Enhances Corneal Recovery Following Alkali Injury. Invest Ophthalmol Vis Sci 2015; 56:711-21. [DOI: 10.1167/iovs.14-15268] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Shen K, Zhou Q, Xu Q, Jiang D, Ni L. Reaction-induced microphase separation in DDS-cured TGDDM thermosets containing PCL-b-PES-b-PCL triblock copolymer. RSC Adv 2015. [DOI: 10.1039/c5ra09285j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Schematic diagram of micro-phase separation during the curing reaction.
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Jiang D, Li J, Xiao X, Li S, Jia X, Sun W, Guo X, Zhang Q. Detection of Mutations in LRPAP1, CTSH, LEPREL1, ZNF644, SLC39A5, and SCO2 in 298 Families With Early-Onset High Myopia by Exome Sequencing. Invest Ophthalmol Vis Sci 2014; 56:339-45. [DOI: 10.1167/iovs.14-14850] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Rafat M, Bazalova M, Palma B, Kozak M, Jiang D, Dunning M, McCormick D, Nelson J, Hemsing E, Lartey F, Graves E, Koong A, Maxim P, Loo B. Impact of Very Rapid Irradiation on Clonogenic Survival. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.2283] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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118
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Borisevich V, Borshchevskiy M, Zeng S, Jiang D. On ideal and optimum cascades of gas centrifuges with variable overall separation factors. Chem Eng Sci 2014. [DOI: 10.1016/j.ces.2014.05.031] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Zheng S, Jiang D, Bai Z, He X. Inference on multiple correlation coefficients with moderately high dimensional data. Biometrika 2014. [DOI: 10.1093/biomet/asu023] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Chen Y, Cao Y, Li HB, Mao J, Liu MJ, Liu YH, Wang BJ, Jiang D, Zhu Q, Ding Y, Wang W, Li H, Choy KW. SNaPshot reveals high mutation and carrier frequencies of 15 common hearing loss mutants in a Chinese newborn cohort. Clin Genet 2014; 87:467-72. [PMID: 24989646 DOI: 10.1111/cge.12452] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Revised: 06/26/2014] [Accepted: 06/27/2014] [Indexed: 11/28/2022]
Abstract
Genetic causes account for more than half of congenital hearing loss cases. The most frequent mutations found in non-syndromic hearing loss patients occur in GJB2 and SLC26A4. Mitochondrial genome mutations are also prevalent. However, the frequency of common hearing loss mutations in the Chinese population has not yet been well estimated. Here, we implemented the SNaPshot genotyping method to investigate the carrier frequency of 15 commonly reported hearing loss mutations in GJB2, SLC26A4 and the mitochondrial genome based on a cohort of 5800 neonates in China. Up to 15.9% (923/5800) of the newborns carry at least one mutant allele. The top three were GJB2-c.109G>A, GJB2-c.235delC, and SLC26A4-c.919A>G, with notably high carrier frequencies of 1/10, 1/53 and 1/62 respectively, and mt-7444G>A with 1/141 was the most frequent allele in the mitochondrial genome. In this cohort, 0.48% (28/5800) of neonates were genetically diagnosed with hearing loss, from which seven cases failed an OAE test. This is the first epidemiological study of non-syndromic hearing loss in Chinese newborns indicating a notably high carrier frequency (1 per 6.3 newborns) among these 15 mutant alleles. Our carrier frequency data also aid in effective risk assessment and genetic counseling for hearing loss patients in the Chinese population.
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Rafat M, Bazalova M, Palma B, Kozak M, Jiang D, Dunning M, McCormick D, Nelson J, Hemsing E, Lartey F, Graves E, Koong A, Maxim P, Loo B. SU-C-BRE-06: Radiobiological Advantage of Very Rapid Irradiation. Med Phys 2014. [DOI: 10.1118/1.4889712] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Attanayake RN, Tennekoon V, Johnson DA, Porter LD, del Río-Mendoza L, Jiang D, Chen W. Inferring outcrossing in the homothallic fungus Sclerotinia sclerotiorum using linkage disequilibrium decay. Heredity (Edinb) 2014; 113:353-63. [PMID: 24781807 DOI: 10.1038/hdy.2014.37] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Revised: 03/24/2014] [Accepted: 03/27/2014] [Indexed: 11/09/2022] Open
Abstract
The occurrence and frequency of outcrossing in homothallic fungal species in nature is an unresolved question. Here we report detection of frequent outcrossing in the homothallic fungus Sclerotinia sclerotiorum. In using multilocus linkage disequilibrium (LD) to infer recombination among microsatellite alleles, high mutation rates confound the estimates of recombination. To distinguish high mutation rates from recombination to infer outcrossing, 8 population samples comprising 268 S. sclerotiorum isolates from widely distributed agricultural fields were genotyped for 12 microsatellite markers, resulting in multiple polymorphic markers on three chromosomes. Each isolate was homokaryotic for the 12 loci. Pairwise LD was estimated using three methods: Fisher's exact test, index of association (IA) and Hedrick's D'. For most of the populations, pairwise LD decayed with increasing physical distance between loci in two of the three chromosomes. Therefore, the observed recombination of alleles cannot be simply attributed to mutation alone. Different recombination rates in various DNA regions (recombination hot/cold spots) and different evolutionary histories of the populations could explain the observed differences in rates of LD decay among the chromosomes and among populations. The majority of the isolates exhibited mycelial incompatibility, minimizing the possibility of heterokaryon formation and mitotic recombination. Thus, the observed high intrachromosomal recombination is due to meiotic recombination, suggesting frequent outcrossing in these populations, supporting the view that homothallism favors universal compatibility of gametes instead of traditionally believed haploid selfing in S. sclerotiorum. Frequent outcrossing facilitates emergence and spread of new traits such as fungicide resistance, increasing difficulties in managing Sclerotinia diseases.
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Hu Q, Shi Y, Li X, Hou Y, Jiang D, Huang J, Su J, Zeng H, Tan Y. An improved high-output cell microarray technology. Cytopathology 2014; 26:44-9. [PMID: 24661724 DOI: 10.1111/cyt.12138] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/05/2014] [Indexed: 01/08/2023]
Abstract
AIMS Cell microarray (CMA) is a high-throughput scientific research tool, which has greatly accelerated many analyses based at the cellular level. However, there are few described methods for constructing CMAs. Here, we introduce a new, simple, high-output CMA method that is applicable to a broad range of cellular samples. METHODS In this method, a recipient block (length, 3.6 cm; width, 2.7 cm; depth, 2 cm) with 40 dot markers was moulded using a transparent plastic box. Adenocarcinoma cells were collected from malignant pleural effusions, cell cylinders were moulded with plastic piping and the cylinders were manually arrayed one by one into the corresponding location of the 60 °C pre-softened recipient block using the guide holes drilled with a steel needle. We constructed a 40-cylinder CMA to prove this method. The expression of cytokeratin 7 (CK7) in the CMA was examined to confirm antigen preservation and epidermal growth factor receptor (EGFR) gene mutation was screened for in five samples. RESULTS The CMA prepared by this method had well-defined array configurations, good cellular morphology and well-preserved proteins and DNA. A total of 1000 sections could be easily gained from this CMA block. CONCLUSIONS This simple and low-cost method provides a novel way of preparing a high-output CMA.
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Alachkar A, Jiang D, Harrison M, Zhou Y, Chen G, Mao Y. An EJC factor RBM8a regulates anxiety behaviors. Curr Mol Med 2014; 13:887-99. [PMID: 23638902 DOI: 10.2174/15665240113139990019] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2012] [Revised: 04/16/2013] [Accepted: 04/21/2013] [Indexed: 11/22/2022]
Abstract
Neuroplasticity depends on the precise timing of gene expression, which requires accurate control of mRNA stability and rapid elimination of abnormal mRNA. Nonsense-mediated mRNA decay (NMD) is an RNA surveillance mechanism that ensures the speedy degradation of mRNAs carrying premature termination codons (PTCs). This mechanism relies on several key Exon Junction Complex (EJC) factors to distinguish PTCs from normal stop codons. NMD degrades not only aberrant transcripts carrying PTCs, but also normal transcripts harboring a normal stop codon [1]. Intriguingly, mutations in an NMD factor, Upf3b, have been found in patients with autism [2, 3]. A binding partner of Upf3b, RBM8a, is located in the 1q21.1 copy-number variation (CNV) associated with mental retardation, autism [4], schizophrenia [5], and microcephaly [6]. However, the functions of EJC factors and their roles in behavioral regulation are still elusive. RBM8a protein is a core component of the EJC that plays an important role in NMD. Recent genetic study indicated that RBM8a gain-of-function significantly associated with intellectual disability [7]. In this study we investigated the effect of RBM8a overexpression on affective behaviors in mice. Lentivirus expressing RBM8a was infused into the hippocampus of adult mice to conduct behavioral studies including social interaction, open field, elevated plus maze, and forced swimming tests. Our results showed that overexpression of RBM8a in the mouse dentate gyrus (DG) leads to increased anxiety-like behavior, abnormal social interaction and decreased immobile time in forced swimming test (FST). To examine the underlying mechanism, we found that overexpressing RBM8a in cultured primary neurons lead to significant higher frequency of miniature excitatory postsynaptic currents (mEPSCs). To explore the underlying mechanism of RBM8a mediated behavioral changes, RNA-immunoprecipitation (RNA-IP) detected that RBM8a binds to CaMK2, GluR1 and Egr1 mRNA, suggesting that RBM8a may target neuronal genes to regulate behaviors. This is the first study that demonstrates the key role of RBM8a on the emotional behaviors in mice. These results reveal new neural mechanisms by which NMD modulates behaviors and potentially provide a better understanding of pathophysiology underlying psychiatric disorders.
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Burns KEA, Magyarody N, Jiang D, Wald R. Attitudes and views of the general public towards research participation. Intern Med J 2014; 43:531-40. [PMID: 21241441 DOI: 10.1111/j.1445-5994.2011.02433.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2010] [Accepted: 11/27/2010] [Indexed: 11/29/2022]
Abstract
BACKGROUND While the challenges of recruitment into clinical trials are well described, little is known about the public's perceptions towards research. AIMS We sought to describe the attitudes, beliefs and knowledge of the public towards research and research participation, focusing on clinical trials, contrast these attributes among individuals with different relationships with the healthcare system and to identify predictors of willingness to participate. METHODS We conducted a self-administered cross-sectional survey of patients and their significant others in two clinics and two intensive care unit waiting rooms and in three public venues. RESULTS We analysed responses from 417 respondents (102 and 105 in dialysis and oncology clinics, and 106 in intensive care unit (ICU) waiting rooms, 104 in public locations). While most (68.3%) respondents favoured the use of humans in clinical trials, 53% felt that trial participants always or almost always receive the best quality of care, only 30.4% had participated in clinical research. Approximately 70% felt that subjects are always advised of the risks and benefits of participation, and 30% expressed ambiguity regarding whether participants are informed of their involvement. Oncology and dialysis respondents were the most and least informed regarding research methods and ethics. The perceived risks and benefits associated with clinical circumstances influence research participation decisions and vary with healthcare experiences. We identified six predictors of willingness to participate. CONCLUSION Attitudes of the public towards research participation are beleaguered by misconceptions. Stakeholders in clinical research must educate the general public regarding research methods and ethics.
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House R, Wills M, Liss G, Switzer-McIntyre S, Lander L, Jiang D. The effect of hand-arm vibration syndrome on quality of life. Occup Med (Lond) 2014; 64:133-5. [PMID: 24486514 DOI: 10.1093/occmed/kqt167] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND It is important to determine how hand-arm vibration syndrome (HAVS), a common occupational condition, affects quality of life (QOL). AIMS To measure the physical (SF12-P) and mental (SF12-M) components of QOL in workers with HAVS, using the SF12 questionnaire, and to determine the effect of the vascular, sensorineural and musculoskeletal components of HAVS on QOL. METHODS Subjects were recruited consecutively from workers with HAVS attending an occupational medicine clinic. They were assessed to determine the Stockholm vascular and sensorineural scale stages as well as an upper extremity pain score, measured by the Borg scale, as an indication of musculoskeletal problems associated with the use of vibrating tools. The SF12-P and SF12-M were both compared with Canadian population normal values after adjusting for age and sex. Multiple linear regression was used to determine the effect of the various HAVS components on SF12-P and SF12-M as well as the effects of age and carpal tunnel syndrome. RESULTS One hundred and forty-one subjects were recruited and 139 (99%) agreed to participate, including 134 men and 5 women. The SF12-P and SF12-M scores were significantly below the Canadian population mean values (P < 0.001), indicating lower QOL. In the multiple regression analysis, the predictor with the largest partial R (2) value for both the SF12-P and SF12-M was the upper extremity pain score. CONCLUSIONS Both the physical and the mental QOL in workers with HAVS were below Canadian population normal values and subjects' upper extremity pain score had the greatest effect on their QOL.
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Jiang D, Li F, Zheng S, Zhao J, Ge J. Anti-esophageal cancer active immunity induced by FasL/B7-1 gene-modified tumor cells. GENETICS AND MOLECULAR RESEARCH 2014. [DOI: 10.4238/2014.november.7.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Beaton DE, Dyer S, Jiang D, Sujic R, Slater M, Sale JEM, Bogoch ER. Factors influencing the pharmacological management of osteoporosis after fragility fracture: results from the Ontario Osteoporosis Strategy's fracture clinic screening program. Osteoporos Int 2014; 25:289-96. [PMID: 23794044 DOI: 10.1007/s00198-013-2430-6] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Accepted: 05/13/2013] [Indexed: 12/12/2022]
Abstract
UNLABELLED Potential mediating factors in the pathway to initiation of osteoporosis treatment following a fragility fracture were evaluated. Patients' perceived need for treatment, mediated by their perception of bone density test results, was central to treatment initiation. Interventions focusing on patients' perceptions of need and test results may improve treatment rates. INTRODUCTION We tested a hypothesized pathway to osteoporosis (OP) pharmacotherapy initiation in fragility fracture patients. We hypothesized that bone mineral density (BMD) testing is strongly associated with treatment initiation and perception of BMD test results would inform patients' perceived need for treatment, which would mediate the effect between BMD testing and treatment initiation. METHODS A longitudinal cohort study followed patients, ≥50 years of age, screened for fragility fracture in 31 fracture clinics in Ontario, Canada who had no prior diagnosis of or treatment for OP. At screening, OP risk factors, baseline-patient perception of OP risk, OP knowledge, and perceived benefits of medication were reported by patients. Patients were followed up within 6 months of fracture to determine BMD testing and prescription of and adherence to first-line OP pharmacotherapy. Structural equation modeling tested the hypothesized pathway. Significance and magnitude of the coefficients and indicators of overall model fit were used to test our model. RESULTS The direct path from BMD testing to OP treatment initiation was non-significant. The pathway to treatment initiation was mediated by patients' perception of their need, which was influenced by their self-reported BMD results. Baseline fracture risk factors, knowledge of OP, and perceived benefits of treatment-predicted patient-perceived need for treatment at follow-up and initiation of OP treatment. CONCLUSIONS Patient perceptions were central factors in the path to initiation of OP pharmacotherapy. Interventions to facilitate accurate patient perceptions of BMD test results and OP risk status could prove helpful in improving OP treatment initiation.
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Du J, Cao H, Zhou W, Chen K, Jiang D, Tang H, Wang X, Zhang X, Jiang H. MicroRNA-200 family members are weakly expressed in the neurosensory epithelia of the developing zebrafish (Danio rerio) inner ear. GENETICS AND MOLECULAR RESEARCH 2014; 13:4187-201. [DOI: 10.4238/2014.june.9.5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Chen J, Ren S, Yang C, Jiang D, Li L. Self-Healing Characteristics of Damaged Rock Salt under Different Healing Conditions. MATERIALS 2013; 6:3438-3450. [PMID: 28811444 PMCID: PMC5521314 DOI: 10.3390/ma6083438] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/29/2013] [Revised: 08/06/2013] [Accepted: 08/07/2013] [Indexed: 11/24/2022]
Abstract
Salt deposits are commonly regarded as ideal hosts for geologic energy reservoirs. Underground cavern construction-induced damage in salt is reduced by self-healing. Thus, studying the influencing factors on such healing processes is important. This research uses ultrasonic technology to monitor the longitudinal wave velocity variations of stress-damaged rock salts during self-recovery experiments under different recovery conditions. The influences of stress-induced initial damage, temperature, humidity, and oil on the self-recovery of damaged rock salts are analyzed. The wave velocity values of the damaged rock salts increase rapidly during the first 200 h of recovery, and the values gradually increase toward stabilization after 600 h. The recovery of damaged rock salts is subjected to higher initial damage stress. Water is important in damage recovery. The increase in temperature improves damage recovery when water is abundant, but hinders recovery when water evaporates. The presence of residual hydraulic oil blocks the inter-granular role of water and restrains the recovery under triaxial compression. The results indicate that rock salt damage recovery is related to the damage degree, pore pressure, temperature, humidity, and presence of oil due to the sealing integrity of the jacket material.
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131
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Yu Y, Zhao Z, Jiang D, Wu Z, Li S. A one-step multiplex RT-PCR assay for simultaneous detection of four viruses that infect peach. Lett Appl Microbiol 2013; 57:350-5. [PMID: 23777367 DOI: 10.1111/lam.12120] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Revised: 06/03/2013] [Accepted: 06/13/2013] [Indexed: 11/29/2022]
Abstract
UNLABELLED A multiplex reverse transcription polymerase chain reaction (mRT-PCR) assay was developed to enable the simultaneous detection and differentiation of four viruses that infect peach, namely Apple chlorotic leaf spot virus (ACLSV), Cherry green ring mottle virus (CGRMV), Prunus necrotic ringspot virus (PNRSV) and Apricot pseudo-chlorotic leaf spot virus (APCLSV). In this study, four pairs of primers, one specific for each virus, were designed; the corresponding PCR products were 632, 439, 346 and 282 bp in length for ACLSV, CGRMV, PNRSV and APCLSV, respectively, and the fragments could be distinguished clearly by agarose gel electrophoresis. The sensitivity and specificity of the method were tested using individual RT-PCR and enzyme-linked immunosorbent assay (ELISA), and the identity of the RT-PCR amplification products was also confirmed by DNA sequencing. The results of RT-PCR and ELISA, along with batch detection using samples collected from peach orchards, revealed that this rapid and simple technique is an effective way to identify the four viruses simultaneously. SIGNIFICANCE AND IMPACT OF THE STUDY The mRT-PCR assay described in this study was developed for the simultaneous detection of four peach viruses from infected peach samples is reliable and sensitive. In contrast to conventional uniplex RT-PCR, mRT-PCR is more efficient, reducing costs, time and handling when testing large numbers of samples. This rapid and simple method is useful for large-scale surveys of viruses that infect peach.
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Hao S, Cui L, Jiang D, Han X, Ren Y, Jiang J, Liu Y, Liu Z, Mao S, Wang Y, Li Y, Ren X, Ding X, Wang S, Yu C, Shi X, Du M, Yang F, Zheng Y, Zhang Z, Li X, Brown DE, Li J. A Transforming Metal Nanocomposite with Large Elastic Strain, Low Modulus, and High Strength. Science 2013; 339:1191-4. [DOI: 10.1126/science.1228602] [Citation(s) in RCA: 202] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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133
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Laban DE, Palmer AJ, Wallace WC, Gaffney NS, Notermans RPMJW, Clevis TTJ, Pullen MG, Jiang D, Quiney HM, Litvinyuk IV, Kielpinski D, Sang RT. Extreme ultraviolet interferometer using high-order harmonic generation from successive sources. PHYSICAL REVIEW LETTERS 2012; 109:263902. [PMID: 23368563 DOI: 10.1103/physrevlett.109.263902] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2012] [Indexed: 06/01/2023]
Abstract
We present a new interferometer technique whereby multiple extreme ultraviolet light pulses are generated at different positions within a single laser focus (i.e., from successive sources) with a highly controllable time delay. The interferometer technique is tested with two generating media to create two extreme ultraviolet light pulses with a time delay between them. The delay is found to be a consequence of the Gouy phase shift. Ultimately the apparatus is capable of accessing unprecedented time scales by allowing stable and repeatable delays as small as 100 zs.
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134
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Li J, Chen X, Jiang D, Liu X, Liu Y, Zhuang G. A highly sensitive electrochemiluminescence immunoassay for detecting embryonic human chorionic gonadotropin in embryo culture media. Fertil Steril 2012. [DOI: 10.1016/j.fertnstert.2012.07.290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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135
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Sun X, Mu Q, Jiang D, Wang C, Wang XC, Fang JG. A new strategy employed for identification of sweet orange cultivars with RAPD markers. GENETICS AND MOLECULAR RESEARCH 2012; 11:2071-80. [PMID: 22911591 DOI: 10.4238/2012.august.6.11] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We optimized RAPD techniques by increasing the length of RAPD primers and performing a strict screening of PCR annealing temperature to distinguish 60 sweet orange cultivars from the Research Institute of Pomology at the Chinese Academy of Agricultural Sciences. A new approach called cultivar identification diagram (CID) was used to improve the efficiency of RAPD markers for cultivar identification. Thirteen effective primers were first screened from 54 RAPD arbitrary 11-mer primers based on their amplification products and amplified polymorphic bands; they were then used for PCR amplification of all 60 cultivars. All cultivars were manually and completely separated by the polymorphic bands appearing in DNA fingerprints from 13 primers; a CID of the 60 sweet orange cultivars was then constructed. This CID separated all the cultivars from each other, based on the polymorphic bands; the corresponding primers were marked in the correct positions on the sweet orange CID. The CID strategy facilitates the identification of fruit cultivars with DNA markers. This CID of sweet orange cultivars will be very useful for the protection of cultivar rights and for early identification of seedlings in the nursery industry.
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136
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House R, Wills M, Liss G, Switzer-McIntyre S, Lander L, Jiang D. DASH work module in workers with hand-arm vibration syndrome. Occup Med (Lond) 2012; 62:448-50. [PMID: 22851739 DOI: 10.1093/occmed/kqs135] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND The Disabilities of the Arm, Shoulder and Hand work module (DASH-W) questionnaire has not previously been described in relation to hand-arm vibration syndrome (HAVS). AIMS To measure work-related disability in workers with HAVS using the DASH-W questionnaire and to determine how the various components of HAVS affect the DASH-W score. METHODS Workers with HAVS from a variety of industries were assessed over a 2-year period at the occupational health clinic, St Michael's Hospital, Toronto. Subjects completed the DASH-W questionnaire and were assessed by an occupational physician to determine their Stockholm sensorineural and vascular stages and upper extremity pain score measured by the Borg scale, as an indication of musculoskeletal problems associated with HAVS. The average DASH-W score was compared with the average value for the US population. Multiple linear regression was used to determine the contribution of the various components of HAVS to the DASH-W score. RESULTS There were 139 (134 men and 5 women) participants. The subjects with HAVS had a mean DASH-W score of 54.7 (95% CI: 50.3-59.1), which was considerably higher than the average for the US population (P < 0.001). Statistically significant HAVS variables in the multiple linear regression included the Stockholm sensorineural stage (P < 0.05) and the upper extremity pain score (P < 0.001) with the pain score having the highest partial R (2) value. CONCLUSIONS Workers with HAVS reported significant upper extremity work-related disability as measured by the DASH-W questionnaire, and the upper extremity pain score made the largest contribution to the DASH-W scores in these subjects.
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Dhar V, Pai I, Connor S, Jiang D, Fitzgerald O'Connor A. Cochlear Implantation in Patients with Vestibular Schwannomas: A Single UK Center Review. Skull Base Surg 2012. [DOI: 10.1055/s-0032-1314168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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138
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Sommer F, Awazu S, Anton-Erxleben F, Jiang D, Klimovich AV, Klimovich BV, Samoilovich MP, Satou Y, Kruss M, Gelhaus C, Kurn U, Bosch TCG, Khalturin K. Blood System Formation in the Urochordate Ciona intestinalis Requires the Variable Receptor vCRL1. Mol Biol Evol 2012; 29:3081-93. [DOI: 10.1093/molbev/mss120] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
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139
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Little A, Ethier C, Ayas N, Thanachayanont T, Jiang D, Mehta S. A patient survey of sleep quality in the Intensive Care Unit. Minerva Anestesiol 2012; 78:406-414. [PMID: 22337154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
BACKGROUND Patients in the Intensive Care Unit (ICU) experience qualitative and quantitative sleep disruption leading to sleep deprivation and adverse sequelae. Patient-related factors, environmental factors, and health-support techniques contribute to sleep disruption. This quality improvement study examines potential factors contributing to poor sleep in the ICU. METHODS Medical and surgical patients who spent at least one night in one of two academic Canadian ICUs were asked to complete a questionnaire that explored quality and quantity of sleep, factors contributing to poor sleep, and suggested modifications to improve sleep in the ICU. Patient demographics as well as admission data were recorded. RESULTS Study population was 116 patients (63 M:53 F). Mean age was 55.5 ± 18.1 years and APACHE II score 16.0 ± 7.9. 45.7% were mechanically ventilated, and 68.9% received intravenous sedatives and/or analgesics. Sleep quality in the ICU was rated as poor/very poor by 59% of patients compared to 24% at home; the 5 most frequently cited reasons for this were noise, pain, light, loud talking, and intravenous catheters. Patients suggested the following nocturnal modifications: closing doors/blinds, no unnecessary interruptions, sleeping pills, and dimmed lights. No significant correlations were found between perceived sleep quality and illness severity or mechanical ventilation. Patients who received intravenous sedatives reported better sleep quality (P<0.01). CONCLUSION Patients commonly report poor sleep in the ICU related to environmental factors that are potentially modifiable.
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Rao HY, Sun DG, Jiang D, Yang RF, Guo F, Wang JH, Liu F, Zhang HY, Zhang HH, Du SC, Jin Q, Qin H, Lok ASF, Wei L. IL28B genetic variants and gender are associated with spontaneous clearance of hepatitis C virus infection. J Viral Hepat 2012; 19:173-81. [PMID: 22329371 DOI: 10.1111/j.1365-2893.2011.01497.x] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Single nucleotide polymorphisms (SNPs) near the IL28B gene have been shown to be associated with response to treatment for chronic hepatitis C and also with spontaneous clearance of hepatitis C virus (HCV) infection. We analysed the association between IL28B genetic variants and spontaneous clearance of HCV infection in 376 HCV-infected Chinese paid plasma donors. Genotyping of eight SNPs near the IL28B region was performed by the iPLEX system (MassARRAY(®) SNP Genotyping; Sequenom) in all donors, and sequencing was performed on all 80 donors who cleared HCV and on 160 of 296 donors who did not clear HCV to validate the genotypes. Eighty (21.3%) donors spontaneously cleared HCV. Four SNPs were significantly associated with spontaneous HCV clearance: rs8099917 TT (vs GT), rs8105790 TT (vs CT), rs12980275 AA (vs AG) and rs10853728 CC (vs CG or GG) with OR (95% CI) 15.27 (2.07-112.50), 14.88 (2.02-109.72), 7.92 (1.88-33.32) and 2.32 (1.22-4.42) respectively. No association between the other four IL28B SNPs including rs12979860 and spontaneous HCV clearance was found. Women had a higher rate of spontaneous HCV clearance than men [56/213 (26.3%) vs 24/163 (14.6%), P = 0.007], and this was true even after stratification for IL28B genotypes with OR of 1.9-2.2 among those with favourable genotypes. Our results confirmed that IL28B polymorphism is associated with spontaneous clearance of HCV in Chinese subjects, but the SNPs that predict HCV clearance in Chinese subjects were different from those reported in Caucasians. Women were more likely to clear HCV infection regardless of IL28B genotypes.
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You Q, Jiang C, Wu Y, Yu X, Chen Y, Zhang X, Wei W, Wang Y, Tang Z, Jiang D, Wu Y, Wang C, Meng X, Zhao X, Kong W. Subcutaneous Administration of Modified Vaccinia Virus Ankara Expressing an Ag85B-ESAT6 Fusion Protein, but Not an Adenovirus-Based Vaccine, Protects Mice Against Intravenous Challenge with Mycobacterium tuberculosis. Scand J Immunol 2011; 75:77-84. [DOI: 10.1111/j.1365-3083.2011.02629.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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142
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Charlton ME, Jiang D, Lin C, Stitzenberg KB, Pendergast JF, Chrischilles EA, Wallace RB. Factors associated with use of preoperative chemoradiotherapy for rectal cancer. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e14079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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143
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Khunjar WO, Jiang D, Murthy S, Wett B, Chandran K. Linking the Nitrogen and One-Carbon Cycles – The Impact of Inorganic Carbon Limitation on Ammonia Oxidation and Nitrogen Oxide Emission Rates in Ammonia Oxidizing Bacteria. ACTA ACUST UNITED AC 2011. [DOI: 10.2175/193864711802721848] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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House R, Jiang D, Thompson A, Eger T, Krajnak K, Sauve J, Schweigert M. Vasospasm in the feet in workers assessed for HAVS. Occup Med (Lond) 2010; 61:115-20. [DOI: 10.1093/occmed/kqq191] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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145
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Lee A, Jiang D, McLaren S, Nunn T, Demler JM, Tysome JR, Connor S, Fitzgerald O'Connor A. Electric acoustic stimulation of the auditory system: experience and results of ten patients using MED-EL's M and FlexEAS electrodes. Clin Otolaryngol 2010; 35:190-7. [PMID: 20636737 DOI: 10.1111/j.1749-4486.2010.02140.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To evaluate the hearing preservation rate and speech perception scores in patients with profound high frequency hearing loss and acoustically aidable low frequency hearing, managed with the MED-EL electric acoustic stimulation system referenced to the insertion depth of the electrode array. STUDY DESIGN Retrospective data analysis. PARTICIPANTS AND SETTING Ten patients implanted at the Auditory Implant Centre, Guy's and St Thomas's Hospital, London, UK. MAIN OUTCOME MEASURES Pure tone audiometry, speech perception tests and electrode insertion depth angle. RESULTS Postoperatively, functional hearing preservation allowing electric acoustic stimulation was achieved in eight patients and total preservation of residual hearing in five patients with follow-up periods of more than 12 months. Three of four (75%) patients with an insertion depth of >360 degrees had a threshold shift of >25 dB, and all four patients had a threshold shift of >10 dB. All patients with total hearing preservation had the electrode inserted up to 360 degrees at maximum. Overall, speech perception outcomes increased significantly and hearing impairment was significantly reduced after electric acoustic stimulation or electric stimulation alone as compared with the preoperative scores. CONCLUSION Electric acoustic stimulation provides significant benefit to individuals with profound high frequency hearing loss. Studies with larger number of patients are needed to establish the optimal electrode insertion angle as well as to further analyse the benefit of electric acoustic stimulation.
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Jiang D, Wu M. Thymectomy resulted in complete remission of pure red cell aplasia when associated with thymoma. Thorac Cardiovasc Surg 2010; 58:235-6. [PMID: 20514581 DOI: 10.1055/s-0029-1240828] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Patients with thymoma associated with pure red cell aplasia (PRCA) are rare and the relevant literature is limited. Prognostic evaluations into the appropriate surgical management of this rare coincidence of diseases are controversial, with some authors believing that none of their cases experienced remission of anemia after thymectomy. Despite the extreme rare concomitance of thymoma and PRCA, we report three consecutive cases, who experienced long-term complete remission of PRCA after extended thymectomy as their only therapy over a 6-year period. Possible features leading to the favorable outcome are discussed.
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Ren L, Li G, Jiang D. Characterization of some culture factors affecting oxalate degradation by the mycoparasite Coniothyrium minitans. J Appl Microbiol 2010; 108:173-80. [PMID: 20002909 DOI: 10.1111/j.1365-2672.2009.04415.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIMS To find possible approaches to utilize the mechanism of oxalate degradation by Coniothyrium minitans (Cm) in controlling the plant pathogen Sclerotinia sclerotiorum (Ss). METHODS AND RESULTS Differences in oxalate degradation by different Cm strains and effects of the initial oxalate concentration, ambient pH and nutrient factors on mycelial growth and oxalate degradation by Cm were studied in shaken cultures. Results showed that two wild-type Cm strains, Chy-1 and ZS-1, did not differ in oxalate degradation in modified potato dextrose broth (mPDB) amended with oxalic acid (OA). Cm could grow in mPDB amended with sodium oxalate (SO-mPDB) at pH 6.5 or with ammonium oxalate (AO-PDB) at pH 6.2, but oxalate degradation was very low; oxalate degradation was greatly enhanced in SO- or AO-mPDB with pH being lowered to 2.8-2.9. Similarly, oxalate degradation was higher than 90% in OA-amended mPDB at pH 4.4 but was reduced to be <22% at pH 7.0. Five carbon sources and three nitrogen sources investigated and nutrients from mycelia and sclerotia of Ss were favorable for the growth of Cm and OA degradation by Cm. CONCLUSIONS Cm can degrade oxalate under acidic pH. Exudates from mycelia or sclerotia of Ss may serve as nutrients for Cm mycelial growth and degradation of oxalate secreted by Ss. SIGNIFICANCE AND IMPACT OF THE STUDY The finding of oxalate degradation laid a foundation for mining-related genes in Cm for engineering plant resistance against Ss. Elucidation of the importance of acidic pH and nutrients from Ss in oxalate degradation by Cm will help to understand the interaction between Cm and Ss.
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Sun Y, Cui H, Yang GZ, Huang H, Jiang D, Wang CX. The synthesis and mechanism investigations of morphology controllable 1-D SiCnanostructuresvia a novel approach. CrystEngComm 2010. [DOI: 10.1039/b906171a] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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149
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Sgro M, Ray J, Jiang D, Shah R, Singh G, Mamdani MM. Birthweight Curves and Thresholds for Small for Gestational Age Tailored to Newborns of East Asian and South Asian Ancestry. Paediatr Child Health 2009. [DOI: 10.1093/pch/14.suppl_a.37a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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150
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Ferguson KA, Leung S, Jiang D, Ma S. Distribution of MLH1 foci and inter-focal distances in spermatocytes of infertile men. Hum Reprod 2009; 24:1313-21. [DOI: 10.1093/humrep/dep021] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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