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Maes B, Willemse J, Broekmans A, Smets R, Cruys B, Put N, Madoe V, Janssen M, Soepenberg O, Bries G, Vrelust I, Achten R, Van Pelt K, Buvé K, Theunissen K, Peeters V, Froyen G. Targeted next-generation sequencing using a multigene panel in myeloid neoplasms: Implementation in clinical diagnostics. Int J Lab Hematol 2017; 39:604-612. [DOI: 10.1111/ijlh.12709] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 05/23/2017] [Indexed: 01/22/2023]
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Vazirpanah N, Kienhorst LBE, Van Lochem E, Wichers C, Rossato M, Shiels PG, Dalbeth N, Stamp LK, Merriman TR, Janssen M, Radstake TRDJ, Broen JC. Patients with gout have short telomeres compared with healthy participants: association of telomere length with flare frequency and cardiovascular disease in gout. Ann Rheum Dis 2017; 76:1313-1319. [PMID: 28347991 DOI: 10.1136/annrheumdis-2016-210538] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 01/31/2017] [Accepted: 03/02/2017] [Indexed: 01/12/2023]
Abstract
AIM AND BACKGROUND Chronic inflammation associates with increased senescence, which is a strong predictor for cardiovascular disease. We hypothesised that inflammation accelerates senescence and thereby enhances the risk of cardiovascular disease in gout. METHODS We assessed replicative senescence by quantifying telomere length (TL) in a discovery cohort of 145 Dutch patients with gout and 273 healthy individuals and validated our results in 474 patients with gout and 293 healthy participants from New Zealand. Subsequently, we investigated the effect of cardiovascular disease on TL of all participants. Also, we measured TL of CD4+ and CD8+ T lymphocytes, B lymphocytes, monocytes, natural killer cells and plasmacytoid dendritic cells. Additionally, we assessed the potential temporal difference in TL and telomerase activity. RESULTS TL in PBMCs of healthy donors decreased over time, reflecting normal ageing. Patients with gout demonstrated shorter telomeres (p=0.001, R2=0.01873). In fact, the extent of telomere erosion in patients with gout was higher at any age compared with healthy counterparts at any age (p<0.0001, R2=0.02847). Patients with gout with cardiovascular disease had the shortest telomeres and TL was an independent risk factor for cardiovascular disease in patients with gout (p=0.001). TL was inversely associated with the number of gouty flares (p=0.005). CONCLUSIONS Patients with gout have shorter telomeres than healthy participants, reflecting increased cellular senescence. Telomere shortening was associated with the number of flares and with cardiovascular disease in people with gout.
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Schneidewind L, Knerr-Rupp K, Feld P, Janssen M, Keiser M, Smola S. Establishment of a 3D organotypic urothelial cell culture model as infection model system for BK polyomavirus – viral lifecycle and identification of new therapeutic targets. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/s1569-9056(17)30150-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Folco F, Velasquez Ochoa J, Cavani F, Ott L, Janssen M. Ethanol gas-phase ammoxidation to acetonitrile: the reactivity of supported vanadium oxide catalysts. Catal Sci Technol 2017. [DOI: 10.1039/c6cy01275b] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The gas-phase ammoxidation of ethanol, a bio-based platform molecule, has been investigated as a possible more sustainable route for the production of acetonitrile, using supported vanadium oxide catalysts. The nature of the interaction between the support and the active species greatly affected the catalytic performance.
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Janssen M, Putz J, Giessing M, Fornara P, Friedersdorff F, Dreikorn K, Heynemann H, Stein K, Wunderlich H, Stöckle M. [Report of the 23rd annual meeting of the Working Group Kidney Transplantation of the German Society of Urology in Homburg (Saar)]. Urologe A 2016; 56:69-71. [PMID: 27966097 DOI: 10.1007/s00120-016-0295-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Buntinx L, Voets T, Morlion B, Vangeel L, Janssen M, Cornelissen E, Vriens J, de Hoon J, Levtchenko E. TRPV1 dysfunction in cystinosis patients harboring the homozygous 57 kb deletion. Sci Rep 2016; 6:35395. [PMID: 27734949 PMCID: PMC5062165 DOI: 10.1038/srep35395] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Accepted: 09/27/2016] [Indexed: 11/12/2022] Open
Abstract
Cystinosis is a rare autosomal recessive disorder characterized by lysosomal cystine accumulation due to loss of function of the lysosomal cystine transporter (CTNS). The most common mutation in cystinosis patients of Northern Europe consists of a 57-kb deletion. This deletion not only inactivates the CTNS gene but also extends into the non-coding region upstream of the start codon of the TRPV1 gene, encoding the capsaicin- and heat-sensitive ion channel TRPV1. To evaluate the consequences of the 57-kb deletion on functional TRPV1 expression, we compared thermal, mechanical and chemical sensitivity of cystinosis patients with matched healthy controls. Whereas patients heterozygous for the 57-kb deletion showed normal sensory responses, homozygous subjects exhibited a 60% reduction in vasodilation and pain evoked by capsaicin, as well as an increase in heat detection threshold. Responses to cold, mechanical stimuli or cinnamaldehyde, an agonist of the related nociceptor channel TRPA1, were unaltered. We conclude that cystinosis patients homozygous for the 57-kb deletion exhibit a strong reduction of TRPV1 function, leading to sensory deficiencies akin to the phenotype of TRPV1-deficient mice. These deficits may account for the reported sensory alterations and thermoregulatory deficits in these patients, and provide a paradigm for life-long TRPV1 deficiency in humans.
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Peeters L, Janssen M, Kingma I, van Dieën J, de Groot I. Compensatory trunk movements during functional tasks in patients with Duchenne muscular dystrophy. Neuromuscul Disord 2016. [DOI: 10.1016/j.nmd.2016.06.353] [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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Janssen M, Harlaar J, Koopman B, de Groot I. Duchenne dynamic arm study: Quantitative description of upper extremity function and activity of boys and men with DMD. Neuromuscul Disord 2016. [DOI: 10.1016/j.nmd.2016.06.352] [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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Schaper F, Zhao Y, Wagner L, Colon A, van Kranen-Mastenbroek V, Gommer E, Janssen M, Ackermans L, van Wezel R, Temel Y, Heida T, Rouhl R. EP 71. Single cell firing patterns in the anterior nucleus of the thalamus relate to therapy response in deep brain stimulation for refractory epilepsy. Clin Neurophysiol 2016. [DOI: 10.1016/j.clinph.2016.05.256] [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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Darji K, Bryan Z, Tobin C, Janssen M, Eric A, Siegfried E. LB767 Vitamin D deficiency and atopic dermatitis: Consider disease, race, and body mass. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.05.016] [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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Gerlag D, Safy M, Maijer K, de Hair M, Tas S, Starmans-Kool M, van Tubergen A, Janssen M, Tak PP. OP0182 Prevention of Rheumatoid Arthritis by B Cell Directed Therapy in The Earliest Phase of The Disease: The Prairi Study. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.6042] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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37
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Massmann A, Marchal C, Janssen M, Niklas C, Seiler-Mussler S, Sester U, Heine G, Schneider G, Stöckle M, Bücker A. Perkutane transluminale Angioplastie zur Behandlung der Transplantatnierenarterienstenose. ROFO-FORTSCHR RONTG 2016. [DOI: 10.1055/s-0036-1581494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Vejrazka C, Streefland M, Wijffels R, Janssen M. The role of an electron pool in algal photosynthesis during sub-second light–dark cycling. ALGAL RES 2015. [DOI: 10.1016/j.algal.2015.07.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Voermans N, Preisler N, Madsen K, Janssen M, Kusters B, Maas D, Groothuis J, Vissing J, van Engelen B, Lefeber D. PGM1 deficiency – A heterogeneous myopathy with opportunities for treatment. Neuromuscul Disord 2015. [DOI: 10.1016/j.nmd.2015.06.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Janssen M, Harlaar J, de Groot I. Arm function of boys with Duchenne muscular dystrophy explored by surface electromyography and muscle force measurements. Neuromuscul Disord 2015. [DOI: 10.1016/j.nmd.2015.06.152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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41
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Zweers H, Leij-Halfwerk S, Janssen M, Wanten G. MON-PP154: Body Composition of Adults with Mitochondrial Disease. Clin Nutr 2015. [DOI: 10.1016/s0261-5614(15)30586-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Reyskens M, Sleurs K, Verresen L, Janssen M, van den Bergh J, Geusens P. Erratum to: Hypophosphatemic osteomalacia: an unusual clinical presentation of multiple myeloma. Osteoporos Int 2015; 26:2043. [PMID: 26077381 PMCID: PMC4643584 DOI: 10.1007/s00198-015-3210-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Reyskens M, Sleurs K, Verresen L, Janssen M, van den Berg J, Geusens P. Hypophosphatemic osteomalacia: an unusual clinical presentation of multiple myeloma. Osteoporos Int 2015; 26:2039-42. [PMID: 25906239 PMCID: PMC4483244 DOI: 10.1007/s00198-015-3090-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Accepted: 02/25/2015] [Indexed: 11/01/2022]
Abstract
An unusual case of a 75-year-old man is presented who had multiple stress fractures due to adult onset hypophosphatemic osteomalacia, which was the result of Fanconi syndrome, with light chain cast proximal tubulopathy due to multiple myeloma. A 75-year-old man presented with diffuse pain and muscle weakness. He had multiple stress fractures, low serum phosphate, decreased renal tubular reabsorption of phosphate, and normal PTH and FGF23, indicating adult onset hypophosphatemic osteomalacia. Phosphate supplements with calcitriol resulted in clinical recovery and healing of stress fractures. Because of proteinuria, a renal biopsy was performed that revealed Fanconi syndrome with light chain cast proximal tubulopathy and light kappa chains were found in serum and urine. A bone biopsy confirmed the diagnosis of multiple myeloma, and treatment with chemotherapy resulted in cytological and clinical recovery.
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Heinzelmann J, Stubendorff B, Jung V, Baumgart S, Hölters S, Unteregger G, Grimm J, Linxweiler J, Janssen M, Ohlmann CH, Saar M, Siemer S, Stöckle M, Junker K. [Epigenetic regulation of urological tumors. Importance for prognosis and metastasis]. Urologe A 2015; 54:832-8. [PMID: 26037021 DOI: 10.1007/s00120-015-3863-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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de Vries J, Ischebeck BK, Voogt LP, van der Geest JN, Janssen M, Frens MA, Kleinrensink GJ. Joint position sense error in people with neck pain: A systematic review. ACTA ACUST UNITED AC 2015; 20:736-44. [PMID: 25983238 DOI: 10.1016/j.math.2015.04.015] [Citation(s) in RCA: 107] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Revised: 04/15/2015] [Accepted: 04/24/2015] [Indexed: 01/02/2023]
Abstract
BACKGROUND Several studies in recent decades have examined the relationship between proprioceptive deficits and neck pain. However, there is no uniform conclusion on the relationship between the two. Clinically, proprioception is evaluated using the Joint Position Sense Error (JPSE), which reflects a person's ability to accurately return his head to a predefined target after a cervical movement. OBJECTIVES We focused to differentiate between JPSE in people with neck pain compared to healthy controls. STUDY DESIGN Systematic review according to the PRISMA guidelines. METHOD Our data sources were Embase, Medline OvidSP, Web of Science, Cochrane Central, CINAHL and Pubmed Publisher. To be included, studies had to compare JPSE of the neck (O) in people with neck pain (P) with JPSE of the neck in healthy controls (C). RESULTS/FINDINGS Fourteen studies were included. Four studies reported that participants with traumatic neck pain had a significantly higher JPSE than healthy controls. Of the eight studies involving people with non-traumatic neck pain, four reported significant differences between the groups. The JPSE did not vary between neck-pain groups. CONCLUSIONS Current literature shows the JPSE to be a relevant measure when it is used correctly. All studies which calculated the JPSE over at least six trials showed a significantly increased JPSE in the neck pain group. This strongly suggests that 'number of repetitions' is a major element in correctly performing the JPSE test.
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Mothapo KM, Stelma F, Janssen M, Kessels R, Miners S, Verbeek MM, Koopmans P, van der Ven A. Amyloid beta-42 (Aβ-42), neprilysin and cytokine levels. A pilot study in patients with HIV related cognitive impairments. J Neuroimmunol 2015; 282:73-9. [PMID: 25903731 DOI: 10.1016/j.jneuroim.2015.03.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Revised: 03/18/2015] [Accepted: 03/20/2015] [Indexed: 01/13/2023]
Abstract
HIV-associated dementia (HAD) is associated with amyloid-beta (Aβ) deposition. This study measured CSF and plasma amyloid beta-42 (Aβ-42), neprilysin (NEP) and cytokine levels in HIV-related cognitive impairments (HCI), HIV normal cognitive functioning (NF) and non-HIV controls. Our data showed a trend towards detectable plasma Aβ-42 levels more frequently in HCI (67%), when compared to NF (29%) and controls (10%). We showed elevated IL-8 levels in CSF of HCI compared to NF, although not significant values. The data from this pilot study indicates that CSF IL-8 and plasma Aβ-42 may be interesting biomarkers for the presence of HCI.
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Hoppe MW, Sperlich B, Baumgart C, Janssen M, Freiwald J. [Reliability of Selected Parameters of Cycling Ergospirometry from the PowerCube-Ergo Respiratory Gas Analyser]. SPORTVERLETZUNG-SPORTSCHADEN 2015; 29:173-9. [PMID: 25710394 DOI: 10.1055/s-0034-1399096] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
This study aimed to investigate the reliability of 1) the key parameters of cycling ergospirometry (maximum power output [Pmax] and oxygen uptake [V̇O2peak], ventilatory thresholds 1 [VT 1] and 2 [VT 2], and cycling efficiency [CE] and gross efficiency [GE]), 2) the commonly used parameters to quantify exhaustion (maximum heart rate [HFmax], respiratory quotient [RQmax], blood lactate concentration [BLAmax], and ratings of perceived exhaustion [RPEmax]), and 3) the kinetics of exercise induced gas exchange measurements (oxygen uptake [V̇O2], carbon dioxide output [V̇CO2], and minute ventilation [V̇E]) using the PowerCube-Ergo metabolic system in consideration of international statistical recommendations. 12 women and 12 men (28 ± 4 years; 23.2 ± 2.4 kg/m(2)) performed two cycling tests (20 watt/min) separated by one week. The reliability was calculated based on differences in means (t test and effect sizes), retest correlation (intraclass correlation coefficient [ICC]), and within-subject variation (standard error of measurement [SEM]). Of the key parameters of cycling ergospirometry, an excellent reliability (ICC ≥ 0.969; p = 0.000) and high accuracy (%SEM ≤ 4.6) were found for Pmax, V̇O2peak, and VT 1. Of the most commonly used parameters to quantify exhaustion, an excellent reliability (ICC = 0.922; p = 0.000) and high accuracy (%SEM = 1.0) existed only for HFmax. The gas exchange measurements (V̇O2, V̇CO2 und V̇E) of the PowerCube-Ergo were all excellently reliable (ICC ≥ 0,991; p = 0.000) and the accuracy of V̇O2 (SEM = 0.10 l/min) and V̇E (SEM = 3.13 l/min) fulfilled the quality guidance of exercise physiology laboratories. For future studies and practical purposes, the results are vital for the decision as to whether a difference between two tests represents a true intervention effect or just a measurement error and for the estimation of required sample sizes.
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Kienhorst LBE, Janssens HJEM, Fransen J, Janssen M. The validation of a diagnostic rule for gout without joint fluid analysis: a prospective study. Rheumatology (Oxford) 2014; 54:609-14. [DOI: 10.1093/rheumatology/keu378] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Blanken W, Janssen M, Cuaresma M, Libor Z, Bhaiji T, Wijffels RH. Biofilm growth ofChlorella sorokinianain a rotating biological contactor based photobioreactor. Biotechnol Bioeng 2014; 111:2436-45. [DOI: 10.1002/bit.25301] [Citation(s) in RCA: 102] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Revised: 04/29/2014] [Accepted: 05/23/2014] [Indexed: 11/06/2022]
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Saar M, Ohlmann CH, Janssen M, Stöckle M, Siemer S. [Radical prostatectomy. Detection and management of intra- and postoperative complications]. Urologe A 2014; 53:976-83. [PMID: 25023234 DOI: 10.1007/s00120-014-3500-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Radical prostatectomy is the most common treatment for organ-confined prostate cancer. Performed without complications and limitations, surgery will allow complete removal of the tumor and, therefore, cure the patient. Operative techniques have been improved during the last few decades to reduce invasiveness of the procedure. Furthermore, optimized perioperative management has shortened hospital stay. To ensure rapid recovery of each patient, early detection of complications is highly relevant. Herein, different scenarios for peri- and postoperative complications are described, and recommendations for best practice solutions are reviewed.
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