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Berger B, Lavaf A, DeRose PM, Whitley A, Ballo MT, Peter J, Abdullah H, Abraham Y, Bakalo O, Lipson A, Mooney C, Naveh A, Shamir R, Shapira N, Stepovoy K, Swaim J, Urman N, Zigelman G, Shi W. Patient-Specific Segmentation-Based Treatment Planning vs. NovoTAL for TTFields Therapy in Glioblastoma. Int J Radiat Oncol Biol Phys 2023; 117:e87. [PMID: 37786202 DOI: 10.1016/j.ijrobp.2023.06.841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Patients treated with Tumor Treating Fields (TTFields) therapy for glioblastoma (GBM) have array layouts planned by NovoTAL. NovoTAL requires morphometric inputs and maximizes field intensity at the tumor. Patient-specific segmentation-based treatment planning (SBTP) software uses segmentation-based plans to maximize power density at defined regions of interest (ROIs). This technical analysis compared expected local minimum power density (LMiPD; mW/cm3) and local minimum field intensity (LMiFI; V/cm) delivered to ROIs with array layouts planned with SBTP vs NovoTAL. We hypothesized that SBTP has the potential to increase LMiPD and LMiFI to ROIs vs NovoTal. MATERIALS/METHODS 37 patients from 5 sites who received TTFields therapy for GBM using NovoTAL were included. Treatment plans using the prescribed/treated NovoTAL layouts were created with SBTP. De novo SBTP layouts were also created. Three ROIs representing the original treated GBM (CTV), high risk margin around the GBM (CTV-2), and recurrent GBM (CTV-R) were created. Plans were optimized to CTV. SBTP vs NovoTAL LMiPD and LMiFI volumetrics to ROIs were evaluated. LMiPD and LMiFI were normalized with the delivered current from the treated NovoTAL layout. Layout rankings based on LMiPD and LMiFI, average LMiPD and LMiFI, D95, D5, DVHs, and voxel-by-voxel LMiPD and LMiFI for SBTP derived from NovoTAL layouts were compared to de novo SBTP layouts (paired t-tests). RESULTS Average LMiPD (1.551 vs 1.194) and LMiFI (1.115 vs 0.978) to CTV were significantly higher with SBTP vs NovoTAL (P < 0.0001 for each). Average LMiPD (1.445 vs 1.164) and LMiFI (1.197 vs 1.077) to CTV-2 were also higher (P < 0.0001 for each). There was a positive trend to higher average LMiPD (1.203 vs 1.157; P = 0.212) and LMiFI (1.103 vs 1.090; P = 0.311) to CTV-R. Top ranked overall layouts by LMiPD to CTV were SBTP layouts (97%; n = 36). Percent ratio ([SBTP-NovoTAL]/NovoTAL*100) D95 for LMiPD was 34% (to CTV), 24% (to CTV-2), and 5% (to CTV-R) and for LMiFI was 16%, 12%, and 2% respectively. Percent ratio D5 for LMiPD was 31%, 24%, and 3% and for LMiFI was 14%, 9%, and 0%, respectively. For a given percent CTV volume, minimum LMiPD and LMiFI were higher with SBTP (95%, n = 35; DVH curves shifted to right). SBTP yielded higher LMiPD and LMiFI to the majority of voxels within the CTV (95%, n = 35). With SBTP, LMiPD to CTV was significantly higher than to CTV-R (P < 0.001). CONCLUSION Overall, these data demonstrate that SBTP compared to NovoTAL yielded higher expected average LMiPD and LMiFI, D95, D5, and percent voxel LMiPD and LMiFI to defined ROIs. Higher LMiPD and LMiFI delivered to CTV vs CTV-R with SBTP suggests a benefit to re-planning if the GBM recurs. Given previous reports showing that higher LMiPD and LMiFI are positively correlated with improved overall and progression free survival, patient-specific SBTP may lead to improved clinical outcomes for GBM patients vs NovoTAL.
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Affiliation(s)
| | - A Lavaf
- Desert Regional Medical Center, Palm Springs, CA
| | - P M DeRose
- Methodist Richardson Cancer Center, Richardson, TX
| | - A Whitley
- Central Alabama Radiation Oncology, Montgomery, AL
| | - M T Ballo
- West Cancer Center and Research Institute, Germantown, TN
| | - J Peter
- Methodist Health System, Richardson, TX
| | | | | | | | | | | | | | | | | | | | - J Swaim
- Novocure, Inc., Portsmouth, NH
| | | | | | - W Shi
- Thomas Jefferson University Hospital, Philadelphia, PA
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Day C, Van der Walt J, Crombie K, Hendrikse C, Peter J. Acute angioedema in Cape Town emergency centres and a suggested algorithm to simplify and improve management. S Afr Med J 2023; 113:51-57. [PMID: 37882115 DOI: 10.7196/samj.2023.v113i8.717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Indexed: 10/27/2023] Open
Abstract
BACKGROUND Angioedema is the most common acute allergic presentation to emergency centres (EC), with hospitalisation rates increasing in high-income countries. Angioedema can complicate with life-threatening laryngeal obstruction. There are no local data; therefore, we aimed to characterise acute angioedema cases presenting to ECs and develop a simple management algorithm. OBJECTIVE To characterise the clinical presentation, management and outcomes of acute angioedema cases presenting to ECs. Based on these findings, we developed a management algorithm for acute angioedema to improve the care of acute angioedema in South Africa (SA). METHODS We conducted a retrospective folder review of all patients admitted to Groote Schuur Hospital (tertiary) and Mitchells Plain District Hospital (secondary) ECs from 1 June 2018 to 31 June 2020. Using ICD-10 coding, folders of adults ≥18 years with possible angioedema presenting to the ECs were screened. An allergist extracted demographics, medical history, management and outcome data for each angioedema event. RESULTS A total of 142 acute angioedema episodes were included, with a median (interquartile range) age of 42 (28 - 58) years, and 62% of patients were female. The majority (124/142, 87%) of acute angioedema EC presentations involved swelling above the shoulders, with airway involvement in 20 (14%) patients, with two patients requiring intubation. Nineteen (13%) patients required admission, with five (26%) admitted to high care/intensive care. Drug-induced angioedema was the most common cause, with 64/142 (45%) linked to a known offending drug, 42/64 (65.6%) being angiotensin-converting enzyme inhibitor (ACE-I). Critical information to guide angioedema management, including past personal/family allergy history, and duration of angioedema prior to EC visit, was not recorded in 64.7% and 37.8% of EC records, respectively. Unnecessary treatment with corticosteroids or antihistamines occurred in 19/53 (36%) and 16/53 (30%) cases with bradykinin-mediated angioedema ACE-I angioedema and hereditary angioedema). Overall, only 36/142 (25%) of angioedema patients were connected to allergy care. CONCLUSION Angioedema is the most common allergy presentation to two ECs in Cape Town, SA. Bradykinin-mediated angioedema secondary to ACE-I therapy is the single most common offender, and was not appropriately managed in more than a third of cases. Based on these findings, we have developed a management algorithm that easily stratifies patients into bradykinin or mast cell-mediated angioedema with a step-by-step management approach that is applicable to the SA context. Ongoing awareness and education on allergy emergencies are required to ensure accurate diagnosis of less common causes of angioedema (particularly bradykinin-mediated angioedema) and linkage to allergy specialist care.
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Affiliation(s)
- C Day
- Division of Allergology and Clinical Immunology, Department of Medicine, Faculty of Health Sciences, University of Cape Town, South Africa; Allergy and Immunology Unit, University of Cape Town Lung Institute, Cape Town, South Africa.
| | - J Van der Walt
- Division of Allergology and Clinical Immunology, Department of Medicine, Faculty of Health Sciences, University of Cape Town, South Africa; Allergy and Immunology Unit, University of Cape Town Lung Institute, Cape Town, South Africa.
| | - K Crombie
- Division of Emergency Medicine, Department of Medicine, Faculty of Health Sciences, University of Cape Town, South Africa.
| | - C Hendrikse
- Division of Emergency Medicine, Department of Family, Community and Emergency Care, Faculty of Health Sciences, University of Cape Town, South Africa.
| | - J Peter
- Division of Allergology and Clinical Immunology, Department of Medicine, Faculty of Health Sciences, University of Cape Town, South Africa; Allergy and Immunology Unit, University of Cape Town Lung Institute, Cape Town, South Africa.
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Veenstra S, Porter M, Thwala B, Pillay N, Panieri M, van der Westhuizen J, Phillips E, Meintjes G, Dlamini S, Lehloenya R, Peter J. Long-term HIV and tuberculosis outcomes in patients hospitalised with severe cutaneous adverse reactions. J Clin Tuberc Other Mycobact Dis 2023; 32:100374. [PMID: 37214159 PMCID: PMC10196841 DOI: 10.1016/j.jctube.2023.100374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/24/2023] Open
Abstract
Background Treatment-limiting severe cutaneous adverse reactions (SCAR) occur more commonly amongst persons with HIV-associated tuberculosis (TB). The impact of SCAR on long-term HIV/TB outcomes is unknown. Methods Patients with TB and/or HIV admitted to Groote Schuur Hospital, Cape Town, South Africa with SCAR between 1/10/2018 and 30/09/2021 were eligible. Follow-up data was collected for 6- and 12-month outcomes: mortality, TB and antiretroviral therapy (ART) regimen changes, TB treatment completion, and CD4 count recovery. Results Forty-eight SCAR admissions included: 34, 11, and 3 HIV-associated TB, HIV-only and TB-only patients with 32, 13 and 3 cases of drug reaction with eosinophilia and systemic symptoms, Stevens-Johnson syndrome/toxic epidermal necrolysis and generalised bullous fixed-drug eruption respectively. Nine (19%), all HIV-positive (eight co-infected with TB), were deceased at 12-months, and 12(25%) were lost to follow-up. Amongst TB-SCAR patients, seven (21%) were discharged on all four first-line anti-TB drugs (FLTD), while 12(33%) had regimens with no FLTDs; 24/37(65%) completed TB treatment. Amongst HIV-SCAR patients, 10/31(32%) changed ART regimen. If retained in care (24/36), median (IQR) CD4 counts increased at 12-months post-SCAR (115(62-175) vs. 319(134-439) cells/uL). Conclusion SCAR admission amongst patients with HIV-associated TB results in substantial mortality, and considerable treatment complexity. However, if retained in care, TB regimens are successfully completed, and immune recovery is good despite SCAR.
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Affiliation(s)
- S. Veenstra
- Department of Medicine, University of Cape Town, Groote Schuur Hospital, Observatory, Cape Town, South Africa
| | - M.N. Porter
- Division of Allergy and Clinical Immunology, Department of Medicine, Groote Schuur Hospital, University of Cape Town, Cape Town, South Africa
| | - B.N. Thwala
- Division of Allergy and Clinical Immunology, Department of Medicine, Groote Schuur Hospital, University of Cape Town, Cape Town, South Africa
| | - N. Pillay
- Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - M.A. Panieri
- Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | | | - E.J. Phillips
- Centre for Drug Safety and Immunology, Departments of Medicine, Dermatology, Pharmacology and Pathology, Microbiology & Immunology, Vanderbilt University Medical Centre, Nashville, TN, USA
| | - G. Meintjes
- Department of Medicine and Wellcome Centre for Infectious Diseases Research in Africa, Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, South Africa
| | - S. Dlamini
- Division of Infectious Diseases and HIV Medicine, Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - R.J. Lehloenya
- Division of Dermatology, Department of Medicine, Groote Schuur Hospital, University of Cape Town, Cape Town, South Africa
| | - J. Peter
- Division of Allergy and Clinical Immunology, Department of Medicine, Groote Schuur Hospital, University of Cape Town, Cape Town, South Africa
- Allergy and Immunology Unit, University of Cape Town Lung Institute, Cape Town, South Africa
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McNair M, Porter M, Isaacs T, Pillay K, Williams G, Roberts R, Peter J, Lehloenya RJ. Lichenoid drug eruption in patients on anti-TB therapy in a high HIV prevalence setting. Int J Tuberc Lung Dis 2023; 27:643-645. [PMID: 37491745 PMCID: PMC10365564 DOI: 10.5588/ijtld.23.0162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 04/18/2023] [Indexed: 07/27/2023] Open
Affiliation(s)
| | - M Porter
- Division of Dermatology, Department of Medicine, Faculty of Health Sciences
| | - T Isaacs
- Division of Dermatology, Department of Medicine, Faculty of Health Sciences
| | - K Pillay
- Division of Anatomical Pathology, Department of Pathology, Faculty of Health Sciences
| | | | - R Roberts
- Division of Anatomical Pathology, Department of Pathology, Faculty of Health Sciences
| | - J Peter
- Division of Allergy and Clinical Immunology, Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - R J Lehloenya
- Division of Dermatology, Department of Medicine, Faculty of Health Sciences
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Punathil Meethal R, Jalalzai P, Kumar S, Peter J, Klipp A, Kim TG, Park JG. Benzethonium chloride as a tungsten corrosion inhibitor in neutral and alkaline media for the post-chemical mechanical planarization application. J Colloid Interface Sci 2023; 643:465-479. [PMID: 37088050 DOI: 10.1016/j.jcis.2023.04.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 03/30/2023] [Accepted: 04/03/2023] [Indexed: 04/25/2023]
Abstract
The cleaning solution for the post-chemical mechanical planarization (post-CMP) process of tungsten in neutral-alkaline media requires corrosion inhibitors as an additive, especially for advanced devices where the device node size shrinks below 10 nm. In the present study, the corrosion inhibition performance of benzethonium chloride (BTC) is evaluated in neutral-alkaline conditions. The electrochemical impedance spectroscopy (EIS) analysis showed ∼ 90 % of corrosion inhibition efficiency with an optimum concentration of 0.01 wt% BTC at both pH 7 and 11. Langmuir adsorption isotherm, frontier molecular orbital theory, molecular simulation, contact angle, precipitation study, and X-ray photoelectron spectroscopy analysis were performed to identify the inhibition mechanism of the BTC molecule on the W surface. Based on the proposed mechanism, the electrostatic attraction between the positively charged N atom in the BTC molecule and the negatively charged W surface initiates the adsorption of the molecule. The high dipole moment and large molecular size enhance the physical adsorption of the molecule to the surface. In addition to this, the adsorption isotherm analysis shows that possible chemical interaction with a moderate value of Gibbs free energy change of adsorption exists between the W and BTC molecule. The excellent corrosion inhibition efficiency of BTC on W is confirmed by the frontier molecular orbital theory and molecular dynamic simulation analysis.
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Affiliation(s)
- Ranjith Punathil Meethal
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan 15588, Republic of Korea
| | - Palwasha Jalalzai
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan 15588, Republic of Korea
| | - Sumit Kumar
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan 15588, Republic of Korea
| | - Jerome Peter
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan 15588, Republic of Korea
| | | | - Tae-Gon Kim
- Department of Smart Convergence Engineering, Hanyang University, Ansan 15588, Republic of Korea.
| | - Jin-Goo Park
- Department of Materials Science and Chemical Engineering, Hanyang University, Ansan 15588, Republic of Korea.
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Day C, Deetlefs M, O'Brien A, Smith J, Boyd M, Embling N, Patel S, Moody K, Ramabele T, Budge A, Tarwa T, Jim O, Maharaj T, Pandy S, Abrahams JM, Panieri A, Verhage S, Van der Merwe M, Geragotellis A, Amanjee W, Joseph C, Zhao Z, Moosa S, Bunting M, Pulani Y, Mukhari P, De Paiva M, Deyi G, Wonkam RP, Mancotywa N, Dunge A, Msimanga T, Singh A, Monnaruri O, Molale B, Butler TAG, Browde K, Muller C, Van der Walt J, Whitelaw R, Cronwright D, Sinha S, Binase U, Francis I, Boakye D, Dlamini S, Mendelson M, Peter J. Self-reported beta-lactam allergy in government and private hospitals in Cape Town, South Africa. S Afr Med J 2023; 113:69-74. [PMID: 36757070 DOI: 10.7196/samj.2023.v113i2.16760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Indexed: 02/10/2023] Open
Abstract
BACKGROUND Up to a quarter of inpatients in high-income countries (HICs) self-report beta-lactam allergy (BLA), which if incorrect,increases the use of alternative antibiotics, worsening individual health outcomes and driving bacterial resistance. In HICs, up to 95% ofself-reported BLAs are incorrect. The epidemiology of BLA in low- and middle-income African countries is unknown. OBJECTIVES To describe the epidemiology and de-labelling outcomes of self-reported BLA in hospitalised South African (SA) patients. METHODS Point-prevalence surveys were conducted at seven hospitals (adult, paediatric, government and privately funded, district andtertiary level) in Cape Town, SA, between April 2019 and June 2021. Ward prescription records and in-person interviews were conductedto identify and risk-stratify BLA patients using the validated PEN-FAST tool. De-labelling was attempted at the tertiary allergy clinic atGroote Schuur Hospital. RESULTS A total of 1 486 hospital inpatients were surveyed (1 166 adults and 320 children). Only 48 patients (3.2%) self-reported a BLA,with a higher rate in private than in government-funded hospitals (6.3% v. 2.8%; p=0.014). Using the PEN-FAST tool, only 10.4% (n=5/48)of self-reported BLA patients were classified as high risk for true penicillin hypersensitivity. Antibiotics were prescribed to 70.8% (n=34/48)of self-reported BLA patients, with 64.7% (n=22/34) receiving a beta-lactam. Despite three attempts to contact patients for de-labelling atthe allergy clinic, only 3/36 underwent in vivo testing, with no positive results, and 1 patient proceeded to a negative oral challenge. CONCLUSION Unlike HICs, self-reported BLA is low among inpatients in SA. The majority of those who self-reported BLA were low risk fortype 1 hypersensitivity, but outpatient de-labelling efforts were largely unsuccessful.
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Affiliation(s)
- C Day
- Division of Allergology and Clinical Immunology, Department of Medicine, Groote Schuur Hospital and Faculty of Health Sciences, University of Cape Town, South Africa.
| | - M Deetlefs
- Division of Allergology and Clinical Immunology, Department of Medicine, Groote Schuur Hospital and Faculty of Health Sciences, University of Cape Town, South Africa.
| | - A O'Brien
- Faculty of Health Sciences, University of Cape Town, South Africa.
| | - J Smith
- Faculty of Health Sciences, University of Cape Town, South Africa.
| | - M Boyd
- Department of Medicine, Faculty of Health Sciences, University of Cape Town, South Africa.
| | - N Embling
- Faculty of Health Sciences, University of Cape Town, South Africa.
| | - S Patel
- Faculty of Health Sciences, University of Cape Town, South Africa.
| | - K Moody
- Faculty of Health Sciences, University of Cape Town, South Africa.
| | - T Ramabele
- Faculty of Health Sciences, University of Cape Town, South Africa.
| | - A Budge
- Department of Paediatrics, Faculty of Health Sciences, University of Cape Town, South Africa.
| | - T Tarwa
- Molecular Mycobacteriology Research Unit, Division of Medical Microbiology, Department of Pathology, Faculty of Health Sciences, University of Cape Town, South Africa.
| | - O Jim
- Faculty of Health Sciences, University of Cape Town, South Africa.
| | - T Maharaj
- Faculty of Health Sciences, University of Cape Town, South Africa.
| | - S Pandy
- Faculty of Health Sciences, University of Cape Town, South Africa.
| | - J-M Abrahams
- Division of Allergology and Clinical Immunology, Department of Medicine, Groote Schuur Hospital and Faculty of Health Sciences, University of Cape Town, South Africa.
| | - A Panieri
- Faculty of Health Sciences, University of Cape Town, South Africa.
| | - S Verhage
- Faculty of Health Sciences, University of Cape Town, South Africa.
| | - M Van der Merwe
- Faculty of Health Sciences, University of Cape Town, South Africa.
| | - A Geragotellis
- Faculty of Health Sciences, University of Cape Town, South Africa.
| | - W Amanjee
- Faculty of Health Sciences, University of Cape Town, South Africa.
| | - C Joseph
- Faculty of Health Sciences, University of Cape Town, South Africa.
| | - Z Zhao
- Faculty of Health Sciences, University of Cape Town, South Africa.
| | - S Moosa
- Faculty of Health Sciences, University of Cape Town, South Africa.
| | - M Bunting
- Faculty of Health Sciences, University of Cape Town, South Africa.
| | - Y Pulani
- Faculty of Health Sciences, University of Cape Town, South Africa.
| | - P Mukhari
- Faculty of Health Sciences, University of Cape Town, South Africa.
| | - M De Paiva
- Faculty of Health Sciences, University of Cape Town, South Africa.
| | - G Deyi
- Faculty of Health Sciences, University of Cape Town, South Africa.
| | - R P Wonkam
- Faculty of Health Sciences, University of Cape Town, South Africa.
| | - N Mancotywa
- Faculty of Health Sciences, University of Cape Town, South Africa.
| | - A Dunge
- Faculty of Health Sciences, University of Cape Town, South Africa.
| | - T Msimanga
- Faculty of Health Sciences, University of Cape Town, South Africa.
| | - A Singh
- Faculty of Health Sciences, University of Cape Town, South Africa.
| | - O Monnaruri
- Faculty of Health Sciences, University of Cape Town, South Africa.
| | - B Molale
- Faculty of Health Sciences, University of Cape Town, South Africa.
| | - T A G Butler
- Department of Paediatrics, Faculty of Health Sciences, University of Cape Town, South Africa.
| | - K Browde
- Division of Allergology and Clinical Immunology, Department of Paediatrics, Red Cross War Memorial Children's Hospital and Faculty of Health Sciences, University of Cape Town, South Africa.
| | - C Muller
- Allergy and Immunology Unit, University of Cape Town Lung Institute, Cape Town, South Africa.
| | - J Van der Walt
- Allergy and Immunology Unit, University of Cape Town Lung Institute, Cape Town, South Africa.
| | - R Whitelaw
- Department of Medicine, Faculty of Health Sciences, University of Cape Town, South Africa.
| | - D Cronwright
- Department of Medicine, Faculty of Health Sciences, University of Cape Town, South Africa.
| | - S Sinha
- Faculty of Health Sciences, University of Cape Town, South Africa.
| | - U Binase
- Faculty of Health Sciences, University of Cape Town, South Africa.
| | - I Francis
- Department of Medicine, Faculty of Health Sciences, University of Cape Town, South Africa.
| | - D Boakye
- Department of Medicine, Faculty of Health Sciences, University of Cape Town, South Africa.
| | - S Dlamini
- Division of Infectious Diseases and HIV Medicine, Department of Medicine, Faculty of Health Sciences, University of Cape Town, South Africa.
| | - M Mendelson
- Division of Infectious Diseases and HIV Medicine, Department of Medicine, Faculty of Health Sciences, University of Cape Town, South Africa.
| | - J Peter
- Division of Allergology and Clinical Immunology, Department of Medicine, Groote Schuur Hospital and Faculty of Health Sciences, University of Cape Town, South Africa; Allergy and Immunology Unit, University of Cape Town Lung Institute, Cape Town, South Africa.
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Maurer M, Magerl M, Betschel S, Aberer W, Ansotegui IJ, Aygören-Pürsün E, Banerji A, Bara NA, Boccon-Gibod I, Bork K, Bouillet L, Boysen HB, Brodszki N, Busse PJ, Bygum A, Caballero T, Cancian M, Castaldo A, Cohn DM, Csuka D, Farkas H, Gompels M, Gower R, Grumach AS, Guidos-Fogelbach G, Hide M, Kang HR, Kaplan AP, Katelaris C, Kiani-Alikhan S, Lei WT, Lockey R, Longhurst H, Lumry WR, MacGinnitie A, Malbran A, Saguer IM, Matta JJ, Nast A, Nguyen D, Nieto-Martinez SA, Pawankar R, Peter J, Porebski G, Prior N, Reshef A, Riedl M, Ritchie B, Sheikh FR, Smith WB, Spaeth PJ, Stobiecki M, Toubi E, Varga LA, Weller K, Zanichelli A, Zhi Y, Zuraw B, Craig T. [Not Available]. ARERUGI = [ALLERGY] 2023; 72:237-272. [PMID: 37225467 DOI: 10.15036/arerugi.72.237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Affiliation(s)
- M Maurer
- Institute of Allergology, Charité-Universitätsmedizin, Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Immunology and Allergology
| | - M Magerl
- Institute of Allergology, Charité-Universitätsmedizin, Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Immunology and Allergology
| | | | - W Aberer
- Department of Dermatology, Medical University of Graz
| | - I J Ansotegui
- Department of Allergy & Immunology, Hospital Quironsalud Bizkaia
| | - E Aygören-Pürsün
- Center for Children and Adolescents, University Hospital Frankfurt
| | - A Banerji
- Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital
| | - N A Bara
- Romanian Hereditary Angioedema Expertise Centre, Mediquest Clinical Research Center
| | - I Boccon-Gibod
- National Reference Center for Angioedema (CREAK), Angioedema Center of Reference and Excellence (ACARE), Grenoble Alpes University Hospital
| | - K Bork
- Department of Dermatology, University Medical Center, Johannes Gutenberg University
| | - L Bouillet
- National Reference Center for Angioedema (CREAK), Angioedema Center of Reference and Excellence (ACARE), Grenoble Alpes University Hospital
| | | | - N Brodszki
- Department of Pediatric Immunology, Childrens Hospital, Skåne University Hospital
| | - P J Busse
- Icahn School of Medicine at Mount Sinai
| | - A Bygum
- Clinical Institute, University of Southern Denmark
- Department of Clinical Genetics, Odense University Hospital
| | - T Caballero
- Allergy Department, Hospital Universitario La Paz
| | - M Cancian
- Department of Systems Medicine, University Hospital of Padua
| | | | - D M Cohn
- Department of Vascular Medicine, Amsterdam UMC/University of Amsterdam
| | - D Csuka
- Department of Internal Medicine and Haematology, Hungarian Angioedema Center of Reference and Excellence, Semmelweis University
| | - H Farkas
- Department of Internal Medicine and Haematology, Hungarian Angioedema Center of Reference and Excellence, Semmelweis University
| | - M Gompels
- Clinical Immunology, North Bristol NHS Trust
| | - R Gower
- Marycliff Clinical Research, Principle Research Solutions
| | - A S Grumach
- Clinical Immunology, Centro Universitario FMABC
| | | | - M Hide
- Department of Dermatology, Hiroshima Citizens Hospital
- Department of Dermatology, Hiroshima University
| | - H R Kang
- Department of Internal Medicine, Seoul National University College of Medicine
| | - A P Kaplan
- Division of Pulmonary, Critical Care, Allergy and Immunology, Medical University of South Carolina
| | - C Katelaris
- Department of Medicine, Campbelltown Hospital and Western Sydney University
| | | | - W T Lei
- Division of Allergy, Immunology, and Rheumatology, Department of Pediatrics, Mackay Memorial Hospital
| | - R Lockey
- Division of Allergy and Immunology, Department of Internal Medicine, Morsani College of Medicine, University of South Florida
| | - H Longhurst
- Department of Immunology, Auckland District Health Board and Department of Medicine, University of Auckland
| | - W R Lumry
- Internal Medicine, Allergy Division, University of Texas Health Science Center
| | - A MacGinnitie
- Division of Immunology, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School
| | - A Malbran
- Unidad de Alergia, Asma e Inmunología Clínica
| | - I M Saguer
- Pediatrics, Haemophilia Centre Rhine Main (HZRM)
| | - J J Matta
- H. Especialidades C.M.N.SXXI, I.M.S.S
| | - A Nast
- Department of Dermatology, Venereology and Allergology, Division of Evidence-Based Medicine Charité-Universitätsmedizin Berlin, corporate member of Free University of Berlin, Humboldt University of Berlin, and Berlin Institute of Health
| | - D Nguyen
- Respiratory, Allergy and Clinical Immunology Unit, Internal Medicine Department, Vinmec Healthcare System, College of Health Sciences, VinUniversity
| | | | - R Pawankar
- Department of Pediatrics, Nippon Medical School
| | - J Peter
- Division of Allergy and Clinical Immunology, University of Cape Town
- Allergy and Immunology Unit, University of Cape Town Lung Institute
| | - G Porebski
- Department of Clinical and Environmental Allergology, Jagiellonian University Medical College
| | - N Prior
- Allergy, Hospital Universitario Severo Ochoa
| | - A Reshef
- Angioderma Center, Barzilai University Medical Center
| | - M Riedl
- Division of Rheumatology, Allergy and Immunology, University of California San Diego
| | - B Ritchie
- Departments of Medicine and Medical Oncology, University of Alberta
| | - F R Sheikh
- Section of Adult Allergy & Immunology, Department of Medicine, King Faisal Specialist Hospital & Research Centre
| | - W B Smith
- Clinical Immunology and Allergy, Royal Adelaide Hospital
| | - P J Spaeth
- Institute of Pharmacology, University of Bern
| | - M Stobiecki
- Department of Clinical and Environmental Allergology, Jagiellonian University Medical College
| | - E Toubi
- Division of Allergy and Clinical Immunology, Bnai Zion Medical Center, Affiliated with Rappaport Faculty of Medicine, Technion-Israel Institute of Technology
| | - L A Varga
- Department of Internal Medicine and Haematology, Hungarian Angioedema Center of Reference and Excellence, Semmelweis University
| | - K Weller
- Institute of Allergology, Charité-Universitätsmedizin, Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Immunology and Allergology
| | - A Zanichelli
- Department of Internal Medicine, ASST Fatebenefratelli Sacco, Ospedale Luigi Sacco-University of Milan
| | - Y Zhi
- Department of Allergy and Clinical Immunology, Bejing Union Medical College Hospital & Chinese Academy of Medical Sciences
| | - B Zuraw
- University of California, San Diego
| | - T Craig
- Departments of Medicine and Pediatrics, Penn State University
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8
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Cherian L, Varghese L, Rupa V, Bright R, Abraham L, Panicker R, R. N, Peter J, Nayak A, Shyam A, Varghese G, Manesh A, Karuppusami R, George K, George T, Lenin A, Hansdak S, I. R, Michael J, Ninan M, Thomas M, Kurian R, Mammen S, Kurien R. Rhino-orbito-cerebral mucormycosis: patient characteristics in pre-COVID-19 and COVID-19 period. Rhinology 2022; 60:427-434. [DOI: 10.4193/rhin22.099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Background: Rhino-orbito-cerebral-mucormycosis (ROCM), a rare and potentially fatal disease was seen in increasing numbers during the COVID-19 pandemic. This study describes and compares the patient characteristics and outcomes in COVID-19 associated mucormycosis (CAM) and non-COVID-19 mucormycosis (non-CAM). Methodology: CAM patients (24 cases) were recruited from the COVID-19 period and non-CAM (24 controls) from the pre-COVID-19 period. Clinical data of the CAM group was collected retrospectively with 3 month outcomes prospectively. The non-CAM group data was collected retrospectively. Patient characteristics were compared and risk factors for mortality in ROCM were assessed. Results: Orbital symptoms [altered vision, restricted eye movements, ptosis] and intracranial involvement were higher in CAM patients on presentation. Similarly, the radiological involvement of orbit (orbital apex, superior orbital fissure) and intracranial cavity (intracranial thrombosis, cavernous sinus) was also higher in CAM patients. Newly detected diabetes was found only in CAM patients (29.2%). Although univariate analysis suggested an increased mortality risk in ROCM patients with orbital involvement, the multivariate analysis showed no increased risk with any of the parameters assessed, including COVID-19 positivity. Conclusions: Compared to the non-CAM, the disease presentation was severe in CAM with higher frequency of orbital and intracranial involvement. However, with early detection and treatment, the short term survival was comparable in both groups.
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9
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Peter J. FV 18 Reducing hippocampal hyperactivity with real-time fMRI neurofeedback in patients with amnestic mild cognitive impairment. Clin Neurophysiol 2022. [DOI: 10.1016/j.clinph.2022.01.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Haribabu J, Balakrishnan N, Swaminathan S, Peter J, Gayathri D, Echeverria C, Bhuvanesh N, Karvembu R. Synthesis, cytotoxicity and docking studies (with SARS-CoV-2) of water-soluble binuclear Ru- p-cymene complex holding indole thiosemicarbazone ligand. INORG CHEM COMMUN 2021; 134:109029. [PMID: 34729032 PMCID: PMC8552700 DOI: 10.1016/j.inoche.2021.109029] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 10/21/2021] [Accepted: 10/25/2021] [Indexed: 02/07/2023]
Abstract
A water-soluble binuclear organometallic Ru-p-cymene complex [Ru(η6-p-cymene)(η2-L)]2 (1) was prepared from (E)-2-((1H-indol-3-yl)methylene)-N-phenylhydrazine-1-carbothioamide (HL) and [RuCl2(p-cymene)]2 in methanol at room temperature under inert atmosphere. The structure of binuclear complex was analyzed by UV-Visible, FT-IR, NMR and mass spectroscopic methods. The solid-state structure of the complex was ascertained by single crystal X-ray diffraction technique. The complex exhibited pseudo-octahedral (piano-stool) geometry around Ru(II) ion. The cytotoxic property of the ligand and complex along with cisplatin was investigated against A549-lung, MCF-7-breast, HeLa-cervical, HepG-2-liver, T24-urinary bladder and EA.hy926-endothelial cancer cells, and Vero-kidney epithelial normal cells. The complex exhibited superior activity than cisplatin against A549, HeLa and T24 cancer cells with the IC50 values of 7.70, 11.2, and 5.05 µM, respectively. The complexes were cytotoxic specifically to the cancer cells. Molecular docking studies showed good binding potential of the ligand and complex with the spike protein and main protease of SARS-CoV-2, indicating the promising role of these compounds as antiviral compounds.
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Affiliation(s)
- Jebiti Haribabu
- Department of Chemistry, National Institute of Technology, Tiruchirappalli 620015, India.,Facultad de Medicina, Universidad de Atacama, Copayapu 485, 1531772 Copiapo, Chile
| | - Nithya Balakrishnan
- Department of Chemistry, National Institute of Technology, Tiruchirappalli 620015, India
| | - Srividya Swaminathan
- Department of Chemistry, National Institute of Technology, Tiruchirappalli 620015, India
| | - Jerome Peter
- Department of Chemistry, National Institute of Technology, Tiruchirappalli 620015, India.,Division of Materials Science and Chemical Engineering (MSE), Hanyang University (ERICA), Ansan, Republic of Korea - 15588
| | - Dasararaju Gayathri
- Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600025, India
| | - Cesar Echeverria
- Facultad de Medicina, Universidad de Atacama, Copayapu 485, 1531772 Copiapo, Chile
| | - Nattamai Bhuvanesh
- Department of Chemistry, Texas A & M University, College Station, TX 77842, USA
| | - Ramasamy Karvembu
- Department of Chemistry, National Institute of Technology, Tiruchirappalli 620015, India
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11
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Mohan A, Peter J, Rout L, Thomas AM, Nagappan S, Zhang WJ, Parambadath S, Park SS, Ha CS. In situ thermosensitive hybrid mesoporous silica: preparation and the catalytic activities for carbonyl compound reduction. Dalton Trans 2021; 50:11730-11741. [PMID: 34296727 DOI: 10.1039/d1dt00323b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, free-radical polymerisation inside MCM-41 mesopores was examined to expose a construction route for a temperature-responsive switchable polymer-silica nanohybrid material with well-defined porosity. Herein, we introduced a vinyl monomer (N-isopropyl acrylamide), a cross-linker, and an AIBN initiator into the palladium nanoparticle incorporated MCM-41 pore channels using the wet-impregnation method followed by in situ radical polymerisation. The structural properties of the synthesised PNIPAM-PdNP-MCM-41 catalyst were analysed by various sophisticated analytical techniques. The temperature switchable nanohybrid catalyst was used to reduce carbonyl compounds to their corresponding alcohols. The catalyst showed high catalytic efficiency and robustness in an aqueous medium at 25 °C. Moreover, the system's polymer layer remarkably boosted catalytic selectivity and activity for carbonyl compound reduction as compared to other controlled catalysts. The suggested switchable system can be employed as a temperature-controllable heterogeneous catalyst and highlights a substitute technique to counter the methodical insufficiency in switchable supported molecular catalytic system production.
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Affiliation(s)
- Anandhu Mohan
- Department of Polymer Science and Engineering, School of Chemical Engineering, Pusan National University, Busan 46241, Republic of Korea.
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12
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Yogarathinam LT, Jaafar J, Ismail AF, Goh PS, Bin Mohamed MH, Radzi Hanifah MF, Gangasalam A, Peter J. Polyaniline decorated graphene oxide on sulfonated poly(ether ether ketone) membrane for direct methanol fuel cells application. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5491] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Lukka Thuyavan Yogarathinam
- Advanced Membrane Technology Research Centre (AMTEC), School of Chemical and Energy Engineering Universiti Teknologi Malaysia Skudai Malaysia
| | - Juhana Jaafar
- Advanced Membrane Technology Research Centre (AMTEC), School of Chemical and Energy Engineering Universiti Teknologi Malaysia Skudai Malaysia
| | - Ahmad Fauzi Ismail
- Advanced Membrane Technology Research Centre (AMTEC), School of Chemical and Energy Engineering Universiti Teknologi Malaysia Skudai Malaysia
| | - Pei Sean Goh
- Advanced Membrane Technology Research Centre (AMTEC), School of Chemical and Energy Engineering Universiti Teknologi Malaysia Skudai Malaysia
| | - Mohd Hilmi Bin Mohamed
- Advanced Membrane Technology Research Centre (AMTEC), School of Chemical and Energy Engineering Universiti Teknologi Malaysia Skudai Malaysia
| | - Mohamad Fahrul Radzi Hanifah
- Advanced Membrane Technology Research Centre (AMTEC), School of Chemical and Energy Engineering Universiti Teknologi Malaysia Skudai Malaysia
| | - Arthanareeswaran Gangasalam
- Membrane Research Laboratory, Department of Chemical Engineering National Institute of Technology Tiruchirappalli Tamil Nadu India
| | - Jerome Peter
- Division of Materials Science and Engineering (MSE) Hanyang University (ERICA) Ansan South Korea
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13
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Tatti E, Ferraioli F, Peter J, Alalade T, Nelson AB, Ricci S, Quartarone A, Ghilardi MF. Frontal increase of beta modulation during the practice of a motor task is enhanced by visuomotor learning. Sci Rep 2021; 11:17441. [PMID: 34465846 PMCID: PMC8408223 DOI: 10.1038/s41598-021-97004-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 08/19/2021] [Indexed: 12/12/2022] Open
Abstract
Movement is accompanied by beta power changes over frontal and sensorimotor regions: a decrease during movement (event-related desynchronization, ERD), followed by an increase (event-related synchronization, ERS) after the movement end. We previously found that enhancements of beta modulation (from ERD to ERS) during a reaching test (mov) occur over frontal and left sensorimotor regions after practice in a visuo-motor adaptation task (ROT) but not after visual learning practice. Thus, these enhancements may reflect local cumulative effects of motor learning. Here we verified whether they are triggered by the learning component inherent in ROT or simply by motor practice in a reaching task without such learning (MOT). We found that beta modulation during mov increased over frontal and left areas after three-hour practice of either ROT or MOT. However, the frontal increase was greater after ROT, while the increase over the left area was similar after the two tasks. These findings confirm that motor practice leaves local traces in beta power during a subsequent motor test. As they occur after motor tasks with and without learning, these traces likely express the cost of processes necessary for both usage and engagement of long-term potentiation mechanisms necessary for the learning required by ROT.
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Affiliation(s)
- E Tatti
- CUNY School of Medicine, 160 Convent Avenue, Harris Hall Room 008, New York, NY, 10031, USA.
| | - F Ferraioli
- CUNY School of Medicine, 160 Convent Avenue, Harris Hall Room 008, New York, NY, 10031, USA
| | - J Peter
- CUNY School of Medicine, 160 Convent Avenue, Harris Hall Room 008, New York, NY, 10031, USA
| | - T Alalade
- CUNY School of Medicine, 160 Convent Avenue, Harris Hall Room 008, New York, NY, 10031, USA
| | - A B Nelson
- CUNY School of Medicine, 160 Convent Avenue, Harris Hall Room 008, New York, NY, 10031, USA
| | - S Ricci
- CUNY School of Medicine, 160 Convent Avenue, Harris Hall Room 008, New York, NY, 10031, USA.,DIBRIS University of Genova, 16145, Genoa, Italy
| | - A Quartarone
- Department of Biomedical, Dental Sciences and Morphological and Functional Images, University of Messina, 98125, Messina, Italy
| | - M F Ghilardi
- CUNY School of Medicine, 160 Convent Avenue, Harris Hall Room 008, New York, NY, 10031, USA.
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14
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Peter J. COVID-19 vaccination: Recommendations for management of patients with allergy or immune-based diseases. S Afr Med J 2021; 111:291-294. [PMID: 33944757 DOI: 10.7196/samj.2021.v111i4.15576] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 02/08/2021] [Indexed: 11/08/2022] Open
Abstract
As South Africa continues to battle the second wave of SARS-CoV-2 infections, the imminent arrival of vaccines against COVID-19 offers hope. Vaccine roll-out has been accompanied by heightened media coverage that has created both excitement and anxiety, reporting on the shortened timeline of vaccine trials and approvals, as well as the recent series of anaphylaxis cases associated with the two approved mRNA COVID-19 vaccines. Patients with allergic and other immune-based diseases are subgroups especially concerned about vaccine safety and efficacy. This practice guideline offers broad recommendations for COVID-19 vaccination in various subgroups of allergic and immunebased disease, highlighting risk/benefit evaluation, and where and how routine vaccination should be altered.
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Affiliation(s)
- J Peter
- Division of Allergy and Clinical Immunology, Department of Medicine, Faculty of Health Sciences, University of Cape Town, South Africa; Allergy and Immunology Unit, University of Cape Town Lung Institute, South Africa.
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15
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Mohan A, Peter J, Rout L, Thomas AM, Nagappan S, Parambadath S, Zhang W, Selvaraj M, Ha CS. Facile synthesis of silver nanoparticles stabilized dual responsive silica nanohybrid: A highly active switchable catalyst for oxidation of alcohols in aqueous medium. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.125846] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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16
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Bouillet L, Maurer M, Reshef A, Kiani S, Wu A, Stobiecki M, Kinaciyan T, Peter J, Aygören-Pürsün E, Best J, Cornpropst M, Nagy E, Murray S, Collis P, Launay D, Farkas H. Sécurité et efficacité à long terme du bérotralstat (BCX7353) pour la prophylaxie des crises d’angiœdème héréditaire (AOH) : résultats de l’étude APeX-S. Rev Med Interne 2020. [DOI: 10.1016/j.revmed.2020.10.312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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17
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Gonçalo M, Gimenéz‐Arnau A, Al‐Ahmad M, Ben‐Shoshan M, Bernstein J, Ensina L, Fomina D, Galvàn C, Godse K, Grattan C, Hide M, Katelaris C, Khoshkhui M, Kocatürk E, Kulthanan K, Medina I, Nasr I, Peter J, Staubach P, Wang L, Weller K, Maurer M. The global burden of chronic urticaria for the patient and society*. Br J Dermatol 2020; 184:226-236. [DOI: 10.1111/bjd.19561] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/15/2020] [Indexed: 02/07/2023]
Affiliation(s)
- M. Gonçalo
- Department of Dermatology University Hospital and Faculty of MedicineUniversity of Coimbra Coimbra Portugal
| | - A. Gimenéz‐Arnau
- Department of Dermatology Hospital del MarIMIMUniversitat Autònoma Barcelona Spain
| | - M. Al‐Ahmad
- Microbiology Department Faculty of Medicine Kuwait University Kuwait
| | - M. Ben‐Shoshan
- Division of Allergy, Immunology and Dermatology Department of Pediatrics Montreal Children’s HospitalMcGill University Montréal QC Canada
| | - J.A. Bernstein
- University of Cincinnati College of MedicineDepartment of Internal Medicine, Division of Immunology/Allergy Section, Partner Bernstein Allergy Group and Bernstein Clinical Research Center Cincinnati OH USA
| | - L.F. Ensina
- Alergoalpha/CPAlpha Allergy Clinic and Clinical Research Center and Division of Allergy, Clinical Immunology and Rheumatology Department of Pediatrics Federal University of São Paulo (UNIFESP/EPM) São Paulo SP Brazil
| | - D. Fomina
- Moscow City Center of Allergy and Immunology Clinical City Hospital #52 Department of General Therapy Pirogov Russian National Research Medical University Moscow Russian Federation
- Department of Allergology and Clinical Immunology I.M. Sechenov First Moscow State Medical University Moscow Russian Federation
| | - C.A. Galvàn
- Instituto Nacional de Salud del NiñoCentro de Referencia Nacional de Alergia Asma e Inmunología, Lima Perú
| | - K. Godse
- Department of Dermatology Dr D.Y. Patil School of Medicine Mumbai Maharashtra India
| | - C. Grattan
- St John’s Institute of DermatologyGuy’s Hospital London UK
| | - M. Hide
- Department of Dermatology Graduate School of Biomedical and Health Sciences Hiroshima University Hiroshima Japan
| | - C.H. Katelaris
- Campbelltown Hospital and Western Sydney University Sydney NSW Australia
| | - M. Khoshkhui
- Allergy Research Center Mashhad University of Medical Sciences Mashhad Iran
| | - E. Kocatürk
- Department of Dermatology Koc University School of Medicine Istanbul Turkey
| | - K. Kulthanan
- Department of Dermatology Faculty of Medicine Siriraj Hospital Mahidol University Bangkok Thailand
| | - I. Medina
- Centro Medico VitaeDepartment of Allergy and Clinical Immunology Buenos Aires Argentina
| | - I. Nasr
- Department of Immunology and Allergy Royal Hospital Muscat Oman
| | - J. Peter
- Division of Allergy and Clinical Immunology University of Cape Town and Allergy and Immunology UnitUniversity of Cape Town Lung Institute Cape Town South Africa
| | - P. Staubach
- Department of Dermatology University Medical Center Mainz Mainz Germany
| | - L. Wang
- Liangchun Wang – Sun Yat‐sen Memorial Hospital Sun Yat‐sen University Guangzhou China
| | - K. Weller
- Dermatological Allergology Allergie‐Centrum‐Charité Department of Dermatology and Allergy Charité – Universitätsmedizin Berlin Berlin Germany
| | - M. Maurer
- Dermatological Allergology Allergie‐Centrum‐Charité Department of Dermatology and Allergy Charité – Universitätsmedizin Berlin Berlin Germany
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18
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Bendinger A, Seyler L, Saager M, Debus C, Peschke P, Komljenovic D, Debus J, Peter J, Floca R, Karger C, Glowa C. PH-0476: Impact of single dose photon or 12C-ion irradiation on rat prostate tumors assessed by DCE-MRI. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)00498-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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19
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Thomas AM, Peter J, Nagappan S, Mohan A, Ha CS. Dual Stimuli-Responsive Copper Nanoparticles Decorated SBA-15: A Highly Efficient Catalyst for the Oxidation of Alcohols in Water. Nanomaterials (Basel) 2020; 10:nano10102051. [PMID: 33081325 PMCID: PMC7603010 DOI: 10.3390/nano10102051] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 10/13/2020] [Accepted: 10/13/2020] [Indexed: 01/05/2023]
Abstract
In the present work, a temperature and pH-responsive hybrid catalytic system using copolymer-capped mesoporous silica particles with metal nanoparticles is proposed. The poly(2-(dimethylamino)ethyl methacrylate)(DMAEMA)-co-N-tert-butyl acrylamide) (TBA)) shell on mesoporous silica SBA-15 was obtained through free radical polymerization. Then, copper nanoparticles (CuNPs) decorated SBA-15/copolymer hybrid materials were synthesized using the NaBH4 reduction method. SBA-15 was functionalized with trimethoxylsilylpropyl methacrylate (TMSPM) and named TSBA. It was found that the CuNPs were uniformly dispersed in the mesoporous channels of SBA-15, and the hybrid catalyst exhibited excellent catalytic performance for the selective oxidation of different substituted benzyl alcohols in water using H2O2 as an oxidant at room temperature. The dual (temperature and pH-) responsive behaviors of the CuNPs/p(DMAEMA-co-TBA)/TSBA catalyst were investigated using the dynamic light scattering technique. The conversion of catalytic products and selectivity were calculated using gas chromatographic techniques, whereas the molecular structure of the products was identified using 1H and 13C nuclear magnetic resonance (NMR) spectroscopy. The catalyst showed excellent catalytic activity toward the oxidation of alcohol to aldehyde in an aqueous medium below the lower critical solution temperature (LCST) and pKa values (7–7.5) of the copolymer. The main advantages of the hybrid catalyst, as compared to the existing catalysts, are outstanding alcohol conversion (up to 99%) for a short reaction time (1 h), small amount of the catalyst (5 mg), and good recyclability equal to at least five times.
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20
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Buhl S, Peter J, Stich A, Brückner R, Bulitta C. Durability and stability of antimicrobial coated surfaces. Current Directions in Biomedical Engineering 2020. [DOI: 10.1515/cdbme-2020-3076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Antimicrobial surface coating of i.e. medical devices could contribute to infection prevention and reduction of hospital acquired infections (HAI). Recent studies showed a significant reduction in the microbial contamination of antimicrobial coated surfaces in clinical setups. Nevertheless, there are only few publications available that deal with the durability and stability of these coatings under routine clinical conditions. In this work different antimicrobial coating compositions were tested on different surfaces for their durability and remaining antimicrobial activity. Our results show that the durability and stability of a subsequent applied antimicrobial coating is strongly dependent on the chemical formulation of the coating and also the underlying surface condition. Whereas we could still detect remaining antimicrobial coating and activity on some samples after repeated abrasion testing, some other samples lost their coating and activity after only a few abrasion cycles. Interestingly the integrated antimicrobial substance in the 3-D printed samples showed strong antimicrobial activity even after rough treatment of the surfaces (brushing, scratching).
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Affiliation(s)
- Sebastian Buhl
- University of Applied Science Amberg-Weiden , Hetzenrichter Weg, Germany
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21
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Gray CM, Peter J, Mendelson M, Madhi S, Blackburn JM. COVID-19 antibody testing: From hype to immunological reality. S Afr Med J 2020; 110:837-841. [PMID: 32880263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 07/27/2020] [Indexed: 06/11/2023] Open
Abstract
The potential role for serological tests in the current COVID-19 pandemic has generated very considerable recent interest across many sectors worldwide, inter alia pathologists seeking additional weapons for their armoury of diagnostic tests; epidemiologists seeking tools to gain seroprevalence data that will inform improved models of the spread of disease; research scientists seeking tools to study the natural history of COVID-19 disease; vaccine developers seeking tools to assess vaccine efficacy in clinical trials; and companies and governments seeking tools to aid return-to-work decision-making. However, much of the local debate to date has centred on questions surrounding whether regulatory approval processes are limiting access to serological tests, and has not paused to consider the intrinsically limiting impact of underlying fundamental biology and immunology on where and how different COVID-19 serological tests can usefully be deployed in the response to the current pandemic. We review, from an immunological perspective, recent experimental evidence on the time-dependency of adaptive immune responses following SARS-CoV-2 infection and the impact of this on the sensitivity and specificity of COVID-19 antibody tests made at different time points post infection. We interpret this scientific evidence in terms of mooted clinical applications for current COVID-19 antibody tests in identifying acute infections, in confirming recent or past infections at the individual and population level, and in detecting re-infection and protective immunity. We conclude with guidance on where current COVID-19 antibody tests can make a genuine impact in the pandemic.
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Affiliation(s)
- C M Gray
- Institute of Infectious Disease and Molecular Medicine, Faculty of Health Sciences, University of Cape Town, South Africa; Division of Immunology, Department of Pathology and National Health Laboratory Service, Faculty of Health Sciences, University of Cape Town, South Africa.
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22
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Green RJ, Hockman M, Friedman R, Van Niekerk A, Feldman C, Vardas E, Quitter C, Els C, Van Bruwaene L, Nanan A, Peter J, Seedat RY, Levin M, Bateman On Behalf Of The South African Allergic Rhinitis Working Group Saarwg C. Chronic rhinitis in South Africa - more than just allergy! S Afr Med J 2020; 110:594-598. [PMID: 32880327 DOI: 10.7196/samj.2020.v110i7.14553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Indexed: 06/11/2023] Open
Abstract
Chronic rhinitis is a troublesome condition for sufferers. It is tempting to label all patients with chronic nasal symptoms as having allergic rhinitis (AR), but many such patients have other causes of chronic rhinitis that need a specific diagnosis and management strategy. Even when the patient fully fits the definition of AR, their condition will be best served by combining medication with ongoing patient education.
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Affiliation(s)
- R J Green
- Department of Paediatrics and Child Health, School of Medicine, Faculty of Health Sciences, University of Pretoria, South Africa.
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Van den Berg K, Vermeulen M, Glatt TN, Wasserman S, Barrett CL, Peter J, Brittain D, Louw VJ. COVID-19: Convalescent plasma as a potential therapy. S Afr Med J 2020; 110:562-563. [PMID: 32880317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 06/04/2020] [Indexed: 06/11/2023] Open
Affiliation(s)
- K Van den Berg
- Translational Research, Medical Division, South African National Blood Service, Roodepoort, South Africa; Division of Clinical Haematology, Department of Medicine, Faculty of Health Sciences, University of Cape Town, South Africa.
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Du Plooy N, Day C, Manning K, Abdullah F, James K, Grace L, Vorajee N, April C, Peter J, Raubenheimer PJ. Prevalence and outcome of delirium among acute general medical inpatients in Cape Town, South Africa. S Afr Med J 2020; 110:519-524. [PMID: 32880565 DOI: 10.7196/samj.2020.v110i6.14363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Indexed: 06/11/2023] Open
Abstract
BACKGROUND Delirium is a common, serious, underdiagnosed condition in medical and surgical inpatients with acute conditions. It is associated with increased risk of mortality and morbidity. Data of geriatric cohorts are largely limited to developed countries. OBJECTIVES To describe prevalence, risk factors and outcomes of delirium among general medical patients admitted to two hospitals in Cape Town, South Africa. METHODS This was a prospective cohort study of patients with acute conditions admitted to a general medical inpatient service in secondary- and tertiary-level public hospitals in the Metro West area of Cape Town. Patients ≥18 years of age were recruited daily from all acute medical admissions. Patients were excluded if they were aphasic or their Glasgow coma scale was <8/15. Delirium was diagnosed using the validated confusion assessment method (CAM) tool and performed by trained neuropsychologists. Demographic data were collected by a clinical team and short- and long-term mortality data were obtained using linkage analysis of hospitalised patients and routinely collected provincial death certification records. RESULTS The median age of inpatients was 51 (interquartile range 36 - 65) years, 29% were HIV-infected and the overall prevalence of delirium was 12.3%. Multivariate predictors of delirium included the presence of an indwelling urinary catheter (odds ratio (OR) 4.47; confidence interval (CI) 2.43 - 8.23), admission with a central nervous system disease (OR 4.34; CI 2.79 - 7.90), pre-existing cognitive impairment (OR 3.02; CI 1.22 - 7.43) and immobility (OR 1.88; CI 1.01 - 3.51). HIV infection was not associated with increased risk of delirium. Delirium was associated with an increased risk of inhospital (delirium v. no delirium: 29% v. 12%; p<0.01) and 12-month (30% v. 20%; p<0.01) mortality, as well as increased length of hospital stay (7 days v. 5 days; p<0.01). CONCLUSIONS In this cohort of medical inpatients (relatively young and with a high HIV prevalence) 1 of 8 (12.3%) patients was delirious. Delirium was associated with adverse outcomes. Delirium risk factors in this young cohort were similar to those in geriatric cohorts in developed countries, and neither HIV nor opportunistic infections increased risk.
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Affiliation(s)
- N Du Plooy
- Division of General Medicine, Department of Medicine, Groote Schuur Hospital and Faculty of Health Sciences, University of Cape Town, South Africa.
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Krebs C, Peter J, Wyss P, Klöppel S. P119 Boosting the effect of cognitive training with transcranial electrical stimulation. Clin Neurophysiol 2020. [DOI: 10.1016/j.clinph.2019.12.230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Mohan A, Rout L, Thomas AM, Peter J, Nagappan S, Parambadath S, Ha CS. Palladium nanoparticles-anchored dual-responsive SBA-15-PNIPAM/PMAA nanoreactor: a novel heterogeneous catalyst for a green Suzuki–Miyaura cross-coupling reaction. RSC Adv 2020; 10:28193-28204. [PMID: 35519126 PMCID: PMC9055733 DOI: 10.1039/d0ra05786j] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 07/22/2020] [Indexed: 02/05/2023] Open
Abstract
Palladium nanoparticles-anchored dual-responsive SBA-15-copolymer nanoreactor was developed as a novel heterogeneous catalyst for green Suzuki–Miyaura cross-coupling reaction.
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Affiliation(s)
- Anandhu Mohan
- Department of Polymer Science and Engineering
- Pusan National University
- Busan 46241
- Republic of Korea
| | - Lipeeka Rout
- Department of Polymer Science and Engineering
- Pusan National University
- Busan 46241
- Republic of Korea
| | - Anju Maria Thomas
- Department of Polymer Science and Engineering
- Pusan National University
- Busan 46241
- Republic of Korea
| | - Jerome Peter
- Department of Polymer Science and Engineering
- Pusan National University
- Busan 46241
- Republic of Korea
| | - Saravanan Nagappan
- Department of Polymer Science and Engineering
- Pusan National University
- Busan 46241
- Republic of Korea
| | | | - Chang-Sik Ha
- Department of Polymer Science and Engineering
- Pusan National University
- Busan 46241
- Republic of Korea
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May M, Schönthaler M, Gilfrich C, Wolff I, Peter J, Miernik A, Fritsche HM, Burger M, Schostak M, Lebentrau S. [Interrater reliability and clinical impact of the Post-Ureteroscopic Lesion Scale (PULS) grading system for ureteral lesions after ureteroscopy : Results of the German prospective multicenter BUSTER project]. Urologe A 2019; 57:172-180. [PMID: 29322235 DOI: 10.1007/s00120-017-0565-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
BACKGROUND The Post-ureteroscopic Lesion Scale (PULS) was designed as a standardized classification system for ureteral lesions after uretero(reno)scopy (URS). This study evaluates its routine use and a possible clinical impact based on a representative patient cohort. MATERIALS AND METHODS Data of 307 patients in 14 German centers within the BUSTER project were used to test 3 hypotheses (H): PULS score shows a high interrater reliability (IRR) after independent assessment by urologic surgeon and assistance personnel (H1); PULS score is correlated with the frequency of postoperative complications during hospital stay (H2); post-URS stenting of the ureter is associated with higher PULS scores (H3). RESULTS Median age of patients was 54.4 years (interquartile range [IQR] 44.4-65.8; 65.5% male). Median diameter of index stones was 6 mm (IQR 4-8) with 117 (38.4%) pyelo-caliceal and 188 (61.6%) ureteral stones. Overall, 70 and 82.4% of patients had pre-stenting and post-URS stenting, respectively. Stone-free status was achieved in 68.7% after one URS procedure with a complication rate of 10.8% (mostly grade 1-2 according to Clavien-Dindo). PULS scores 0, 1, 2 and 3 were assessed in 40%, 52.1%, 6.9% and 1% of patients, respectively, when estimated by urologic surgeons. PULS score showed a high IRR between the urologic surgeon and assistance personnel (κ = 0.883, p < 0.001), but was not significantly correlated with complications (ρ = 0.09, p = 0.881). In contrast, a significant positive correlation was found between PULS score and post-URS stenting (ρ = 0.287, p < 0.001). A PULS score of 1 multiplied the likelihood of post-URS stenting by 3.24 (95% confidence interval 1.43-7.34; p = 0.005) as opposed to PULS score 0. CONCLUSIONS Removal of upper urinary tract stones using URS is safe and efficacious. Real-world data provided by this study confirm a high IRR of the PULS score and its clinical impact on the indication for post-URS stenting. A future prospective randomized trial should evaluate a possible standardization of post-URS stenting based on PULS score assessment.
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Affiliation(s)
- M May
- Urologische Kliniken, St. Elisabeth-Klinikum Straubing, St.-Elisabeth-Str. 23, 94315, Straubing, Deutschland.
| | - M Schönthaler
- Urologische Kliniken, Universitätsklinikum Freiburg, Freiburg, Deutschland
| | - C Gilfrich
- Urologische Kliniken, St. Elisabeth-Klinikum Straubing, St.-Elisabeth-Str. 23, 94315, Straubing, Deutschland
| | - I Wolff
- Urologische Kliniken, Carl-Thiem-Klinikum Cottbus, Cottbus, Deutschland
| | - J Peter
- Urologische Kliniken, St. Elisabeth-Klinikum Straubing, St.-Elisabeth-Str. 23, 94315, Straubing, Deutschland
| | - A Miernik
- Urologische Kliniken, Universitätsklinikum Freiburg, Freiburg, Deutschland
| | - H-M Fritsche
- Urologische Kliniken, Universitätsklinikum Regensburg, Caritas-Krankenhaus St. Josef, Regensburg, Deutschland.,Urologische Abteilung der Chirurgischen Klinik München-Bogenhausen, München, Deutschland
| | - M Burger
- Urologische Kliniken, Universitätsklinikum Regensburg, Caritas-Krankenhaus St. Josef, Regensburg, Deutschland
| | - M Schostak
- Urologische Kliniken, Universitätsklinikum Magdeburg A.ö.R., Magdeburg, Deutschland
| | - S Lebentrau
- Urologische Kliniken, Ruppiner Kliniken GmbH, Hochschulklinikum der MHB, Neuruppin, Deutschland
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Dallinga G, van Capelleveen J, Dalila N, Bruikman C, Peter J, Havik S, Hovingh K, Tybjaerg-Hansen A. A Common And A Rare Truncating Variant In Susd2 And Risk Of Ischemic Heart Disease. Atherosclerosis 2019. [DOI: 10.1016/j.atherosclerosis.2019.06.203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Peter J, Lahr J, Klöppel S, Orth M. FV 1 Cholinergic brain structure and sensory-afferent modulation of motor cortex excitability. Clin Neurophysiol 2019. [DOI: 10.1016/j.clinph.2019.04.611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Reeskamp L, Hartgers M, Peter J, Dallinga-Thie G, Grefhorst A, Zuurbier L, Defesche J, Hovingh G. A deep intronic variant in LDLR causing familial hypercholesterolemia: Time to widen the scope? Atherosclerosis 2018. [DOI: 10.1016/j.atherosclerosis.2018.06.894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Austin S, Docksey A, Dudgeon P, Shakles R, Peter J, Rogers P, Brunstrom J. Do humans value one macronutrient more than another? Appetite 2018. [DOI: 10.1016/j.appet.2017.11.076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Yhip A, Peter J, Smalling RW. Primary Stenting for Acute Myocardial Infarction. Thromb Haemost 2017. [DOI: 10.1055/s-0037-1615576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
SummaryPrimary stenting for acute MI has been shown to be an improvement over PTCA alone. As with primary PTCA however there is an obligate delay in restoration of TIMI flow due to the time necessary for mobilization of the cath lab team. It is possible that a hybrid approach using partial thrombolysis plus early IIB/IIIA inhibitor administration followed by urgent angiography and stenting of the culprit lesion will be the ideal approach.
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Giel V, Morávková Z, Peter J, Trchová M. Thermally treated polyaniline/polybenzimidazole blend membranes: Structural changes and gas transport properties. J Memb Sci 2017. [DOI: 10.1016/j.memsci.2017.04.062] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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de Zeeuw J, Feldmeyer F, Hartung C, John M, Mallinckrodt C, Peter J, Rott C, Busca R, Witt C. Welche Faktoren beeinflussen die Motivation von COPD Patienten sich sportlich zu betätigen? Pneumologie 2017. [DOI: 10.1055/s-0037-1598467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Peter J, Kasper C, Kaufholz M, Buschow R, Isensee J, Hucho T, Herberg FW, Schwede F, Stein C, Jordt SE, Brackmann M, Spahn V. Ankyrin-rich membrane spanning protein as a novel modulator of transient receptor potential vanilloid 1-function in nociceptive neurons. Eur J Pain 2017; 21:1072-1086. [PMID: 28182310 DOI: 10.1002/ejp.1008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/12/2016] [Indexed: 02/01/2023]
Abstract
BACKGROUND The ion channel TRPV1 is mainly expressed in small diameter dorsal root ganglion (DRG) neurons, which are involved in the sensation of acute noxious thermal and chemical stimuli. Direct modifications of the channel by diverse signalling events have been intensively investigated, but little is known about the composition of modulating macromolecular TRPV1 signalling complexes. Here, we hypothesize that the novel adaptor protein ankyrin-rich membrane spanning protein/kinase D interacting substrate (ARMS) interacts with TRPV1 and modulates its function in rodent DRG neurons. METHODS We used immunohistochemistry, electrophysiology, microfluorimetry and immunoprecipitation experiments to investigate TRPV1 and ARMS interactions in DRG neurons and transfected cells. RESULTS We found that TRPV1 and ARMS are co-expressed in a subpopulation of DRG neurons. ARMS sensitizes TRPV1 towards capsaicin in transfected HEK 293 cells and in mouse DRG neurons in a PKA-dependent manner. Using a combination of functional imaging and immunocytochemistry, we show that the magnitude of the capsaicin response in DRG neurons depends not only on TRPV1 expression, but on the co-expression of ARMS alongside TRPV1. CONCLUSION These data indicate that ARMS is an important component of the signalling complex regulating the sensitivity of TRPV1. SIGNIFICANCE The study identifies ARMS as an important component of the signalling complex regulating the sensitivity of excitatory ion channels (TRPV1) in peripheral sensory neurons (DRG neurons) and transfected cells.
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Affiliation(s)
- J Peter
- Department of Anesthesiology and Critical Care Medicine, Charité - Universitätsmedizin Berlin, Germany
| | - C Kasper
- Department of Anesthesiology and Critical Care Medicine, Charité - Universitätsmedizin Berlin, Germany
| | - M Kaufholz
- Department of Biochemistry, University of Kassel, Germany
| | - R Buschow
- Department Human Molecular Genetics, Max Planck Institute for Molecular Genetics, Berlin, Germany
- Department of Anesthesiology and Intensive Care Medicine, Experimental Anesthesiology and Pain Research, University Hospital of Cologne, Germany
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Germany
| | - J Isensee
- Department Human Molecular Genetics, Max Planck Institute for Molecular Genetics, Berlin, Germany
- Department of Anesthesiology and Intensive Care Medicine, Experimental Anesthesiology and Pain Research, University Hospital of Cologne, Germany
| | - T Hucho
- Department Human Molecular Genetics, Max Planck Institute for Molecular Genetics, Berlin, Germany
- Department of Anesthesiology and Intensive Care Medicine, Experimental Anesthesiology and Pain Research, University Hospital of Cologne, Germany
| | - F W Herberg
- Department of Biochemistry, University of Kassel, Germany
| | - F Schwede
- Biolog Life Science Institute, Bremen, Germany
| | - C Stein
- Department of Anesthesiology and Critical Care Medicine, Charité - Universitätsmedizin Berlin, Germany
| | - S-E Jordt
- Department of Pharmacology, Yale Medical School, New Haven, CT, USA
- Department of Anesthesiology, Clinical Science Department, Duke University, Durham, NC, USA
| | - M Brackmann
- Department of Anesthesiology and Critical Care Medicine, Charité - Universitätsmedizin Berlin, Germany
| | - V Spahn
- Department of Anesthesiology and Critical Care Medicine, Charité - Universitätsmedizin Berlin, Germany
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Levels J, Piña-Aguilar R, Peter J, Dallinga-Thie G. A novel homozygous mutation in GPD1 leading to severe hypertriglyceridemia. Atherosclerosis 2016. [DOI: 10.1016/j.atherosclerosis.2016.07.476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Wilkie MEM, Minhinnick A, Harris S, Peter J, Stockdale L, Manjaly-Thomas ZR, Vermaak S, Satti I, Moss P, McShane H. S40 Optimisation of a human BCG challenge model. Thorax 2015. [DOI: 10.1136/thoraxjnl-2015-207770.46] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Gilfrich C, Haferkamp A, Brookman-May S, Ahmed A, Peter J, Eckerl M, Schäfer C, Lebentrau S, May M. [Influence of body mass index on histopathological and intraoperative criteria in a consecutive series of patients after robotic-assisted radical prostatectomy]. Aktuelle Urol 2014; 45:464-9. [PMID: 25388856 DOI: 10.1055/s-0034-1394427] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
BACKGROUND In various studies it has been shown that obesity enhances the risk for a unfavorable pathological tumour stages, higher Gleason scores (GS), positive surgical margins (PSM), and certain perioperative parameters (higher blood loss, higher length of surgery, higher complication rates) after radical prostatectomy. However, for robot-assisted radical prostatectomy (RARP) there are only a few studies addressing this topic with partially conflicting results. Furthermore, none of these studies actually represents the clinical practice pattern as performed in a European centre. MATERIAL AND METHODS Beside further clinical and histopathological parameters, also body mass index (BMI) of patients undergoing RARP was recorded. The following categories were registered: BMI of < 25 kg/m², ≥ 25-29.9 kg/m², and ≥ 30 kg/m² defined as normal weight, overweight, and obesity, respectively. The potential correlation between BMI on the one hand and various criteria of aggressive tumour biology and specific perioperative parameters on the other hand has been examined on univariate and multivariable analyses. RESULTS 22.8% (n=79), 59% (n=204), and 18.2% (n=63) of patients of the study group presented with normal weight, overweight, and obesity, respectively. Based on the results of various multivariable regression models there was no significant influence of obesity on pathological tumour stage, pN category, undifferentiated tumour growth (≥ GS7b), upgrading, or PSM rates. Furthermore, obese patients showed a significantly higher intraoperative blood loss and a higher length of surgery, which, however, did not result in a higher rate of grade 3a/b complications according to Clavien-Dindo classification after 90 days. CONCLUSIONS In the present series of consecutive patients undergoing RARP there was no evidence for a more aggressive tumour biology or a higher complication rate in obese patients.
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Affiliation(s)
- C. Gilfrich
- Urologische Klinik, St. Elisabeth-Klinikum Straubing
| | - A. Haferkamp
- Urologische Klinik, Universitätsklinikum der Johann-Wolfgang-Goethe Universität Frankfurt am Main
| | - S. Brookman-May
- Urologische Klinik, Universitätsklinikum der Ludwig-Maximilians-Universität München
| | - A. Ahmed
- Urologische Klinik, St. Elisabeth-Klinikum Straubing
| | - J. Peter
- Urologische Klinik, St. Elisabeth-Klinikum Straubing
| | - M. Eckerl
- Urologische Klinik, St. Elisabeth-Klinikum Straubing
| | - C. Schäfer
- MVZ Strahlentherapie, St. Elisabeth-Klinikum Straubing
| | - S. Lebentrau
- Urologische Klinik, Ruppiner Kliniken GmbH Neuruppin
| | - M. May
- Urologische Klinik, St. Elisabeth-Klinikum Straubing
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Rupesh S, Winnier JJ, Nayak UA, Rao AP, Reddy NV, Peter J. Evaluation of the effects of manuka honey on salivary levels of mutans streptococci in children: a pilot study. J Indian Soc Pedod Prev Dent 2014; 32:212-9. [PMID: 25001440 DOI: 10.4103/0970-4388.135827] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND There has been much debate in the past about whether honey is harmful to the teeth, mostly as part of the debate about raw sugar versus refined sugar and the results have been equivocal. However, what has not been taken into account is that honey varies markedly in the potency of its antibacterial activity. Manuka (Leptospermum scoparium) honey from New Zealand has been found to have substantial levels of non-peroxide antibacterial activity associated with an unidentified phytochemical component, denoted as Unique Manuka Factor (UMF). AIMS Considering the potential antimicrobial effects of manuka honey, the present study attempted to investigate effects of twice daily use of manuka honey with UMF 19.5 on salivary levels of Mutans streptococci in children. STUDY DESIGN The investigation was a stratified comparison of two parallel groups of children who either used manuka honey with regular tooth brushing regimen or continued only with regular tooth brushing regimen twice daily under professional supervision for a 21-day period. A total of three salivary samples were taken from each individual at baseline, day 10, and day 21; colony counts of Streptococcus mutans (S. mutans) were determined. All data was subjected to paired T-test and Wilcoxon's signed ranks sum for intra- and intergroup comparisons respectively. RESULTS Children using manuka honey showed statistically significant reductions in salivary S. mutans after 10 and 21 days. CONCLUSION Manuka honey with UMF 19.5 may be considered as an effective adjunctive oral hygiene measure for reducing colony counts in children.
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Affiliation(s)
- S Rupesh
- Department of Pedodontics and Preventive Dentistry, Pushpagiri College of Dental Sciences, Perumthuruthy, Kerala, India
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Pizzichemi M, Bugalho R, Cao L, Cucciati G, Di Vara N, Farina F, Felix N, Frisch B, Ghezzi A, Hillemanns E, Juhan V, Jun D, Lasaygues P, Lecoq P, Mensah S, Mundler O, Neves J, Paganoni M, Peter J, Siles P, Rasteiro Da Silva J, Silva-Silva R, Tavernier S, Tessonnier L, Varela J. 157: ClearPEM-Sonic: a multimodal PET-ultrasound mammography system. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)34178-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Sundar S, Peter J. EPA-1182 – Association between hazardous drinking and suicidal attempts among men attending emergency medical care service with suicidal attempts. Eur Psychiatry 2014. [DOI: 10.1016/s0924-9338(14)78435-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Buchner A, May M, Burger M, Bolenz C, Herrmann E, Fritsche HM, Ellinger J, Höfner T, Nuhn P, Gratzke C, Brookman-May S, Melchior S, Peter J, Moritz R, Tilki D, Gilfrich C, Roigas J, Zacharias M, Hohenfellner M, Haferkamp A, Trojan L, Wieland W, Müller S, Stief C, Bastian P. Prediction of outcome in patients with urothelial carcinoma of the bladder following radical cystectomy using artificial neural networks. Eur J Surg Oncol 2013; 39:372-9. [DOI: 10.1016/j.ejso.2013.02.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2012] [Revised: 01/14/2013] [Accepted: 02/01/2013] [Indexed: 10/27/2022] Open
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Abstract
Intraoperative range of motion (ROM) assessment can be challenging during total knee arthroplasty (TKA) surgery. As computer assisted surgery is costly and not readily available to many surgeons, we have developed a simple, cost-effective intraoperative device to precisely measure knee flexion and extension. A simple knee goniometer system was constructed consisting of a digital level mounted to a base that rigidly attaches two standard needles. The needles are pushed through the overlying soft tissue of the distal femur. The device is then applied to the proximal tibia, where an angle measurement of the knee is registered. A validation study for this device was conducted on two pairs of intact cadaveric lower limbs at 0 deg, 10 deg, 15 deg, 20 deg, 25 deg, and 30 deg. Two orthopedic surgeons experienced with the system performed three measurements at each angle. Systematic error, defined as the goniometer reading at 0 deg flexion anatomically as determined by the navigation system, ranged from −9.1 deg to 3.0 deg, consistent for each operator on every case. Measurement error, defined as the variability in repeated, fixed angle measurements made with the goniometer, was 1.5 ± 1.0 deg across all surgeons, cases, and prescribed flexion angles. For both surgeons and all imposed flexion angles, measurement errors were below the 4 deg clinical threshold. The simple knee goniometer system generated accurate, repeatable measures of changes in flexion angle intraoperatively with measurement error comparable to errors obtained using the commercial navigation system (1 deg–2 deg). However, the knee goniometer is less complex, less time intensive, and less costly than currently available computer assistive devices. Taken together, our results are very promising for the continued development of this device.
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Affiliation(s)
| | - J. Peter
- San Francisco Orthopaedic Residency Program, The Taylor Collaboration, St. Mary's Medical Center, San Francisco, CA
| | - J. M. Currey
- Biomechanical Testing Facility, University of California, San Francisco, CA
| | - J. M. Buckley
- San Francisco Orthopaedic Residency Program, The Taylor Collaboration, St. Mary's Medical Center, San Francisco, CA; Biomechanical Testing Facility, University of California, San Francisco, CA
| | - K. D. Liddle
- Biomechanical Testing Facility, University of California, San Francisco, CA
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Eckle T, Peter J, Rüttimann S. [A very uncommon reason for chest pain]. Ther Umsch 2012. [PMID: 23188778 DOI: 10.1024/0040-5930/a000348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
A 25-year old female immigrant from Kosovo living in Switzerland for three years complained of intermittent atypical chest pain and shortness of breath for three months. The patient was febrile (38.4 °C) and had a regular tachycardia of 120/min and a blood pressure of 105/65 mmHg. The ECG showed deep symmetric negative T-waves on the leads V1 - V6. The conventional chest X-ray revealed a small bulge of the left cardiac outline. Leucocytes and differential count were normal but the C-reactive protein was markedly elevated (118mg/L). Computed tomography of the chest revealed several pleural and paramediastinal cystic masses on the left side. One of these cystic lesions covered a small defect of the aortic wall appearing as a pseudoaneurysm at the beginning of the descending aorta. Echocardiography showed pericardial cysts on the left ventricle and a small pericardial effusion. Serological tests for Echinococcus granulosus were strongly positive. Thus, the patient was diagnosed with cystic echinococcosis with pericardial, pleural and mediastinal involvement with a pseudoaneurysm of the descending aorta.
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Affiliation(s)
- T Eckle
- Kantonsspital Schaffhausen, Medizinische Klinik
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Peter J, Maksan SM, Eichler K, Schmandra T, Schmitz-Rixen T. Hydrofluoric Acid Burn of the Hand – A Rare Emergency. Eur J Vasc Endovasc Surg 2012. [DOI: 10.1016/j.ejvs.2012.07.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Brady R, Mcavin J, Peter J, Pelletier R. Continued Polymerase Chain Reaction Assay Stability Over Time and in a Changing Thermal Environment. Am J Clin Pathol 2012. [DOI: 10.1093/ajcp/138.suppl2.162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Surendran RP, Visser ME, Heemelaar S, Wang J, Peter J, Defesche JC, Kuivenhoven JA, Hosseini M, Péterfy M, Kastelein JJP, Johansen CT, Hegele RA, Stroes ESG, Dallinga-Thie GM. Mutations in LPL, APOC2, APOA5, GPIHBP1 and LMF1 in patients with severe hypertriglyceridaemia. J Intern Med 2012; 272:185-96. [PMID: 22239554 PMCID: PMC3940136 DOI: 10.1111/j.1365-2796.2012.02516.x] [Citation(s) in RCA: 175] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
OBJECTIVES The severe forms of hypertriglyceridaemia (HTG) are caused by mutations in genes that lead to the loss of function of lipoprotein lipase (LPL). In most patients with severe HTG (TG > 10 mmol L(-1) ), it is a challenge to define the underlying cause. We investigated the molecular basis of severe HTG in patients referred to the Lipid Clinic at the Academic Medical Center Amsterdam. METHODS The coding regions of LPL, APOC2, APOA5 and two novel genes, lipase maturation factor 1 (LMF1) and GPI-anchored high-density lipoprotein (HDL)-binding protein 1 (GPIHBP1), were sequenced in 86 patients with type 1 and type 5 HTG and 327 controls. RESULTS In 46 patients (54%), rare DNA sequence variants were identified, comprising variants in LPL (n = 19), APOC2 (n = 1), APOA5 (n = 2), GPIHBP1 (n = 3) and LMF1 (n = 8). In 22 patients (26%), only common variants in LPL (p.Asp36Asn, p.Asn318Ser and p.Ser474Ter) and APOA5 (p.Ser19Trp) could be identified, whereas no mutations were found in 18 patients (21%). In vitro validation revealed that the mutations in LMF1 were not associated with compromised LPL function. Consistent with this, five of the eight LMF1 variants were also found in controls and therefore cannot account for the observed phenotype. CONCLUSIONS The prevalence of mutations in LPL was 34% and mostly restricted to patients with type 1 HTG. Mutations in GPIHBP1 (n = 3), APOC2 (n = 1) and APOA5 (n = 2) were rare but the associated clinical phenotype was severe. Routine sequencing of candidate genes in severe HTG has improved our understanding of the molecular basis of this phenotype associated with acute pancreatitis and may help to guide future individualized therapeutic strategies.
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Affiliation(s)
- R P Surendran
- Department of Experimental Vascular Medicine, Academic Medical Center, Amsterdam, The Netherlands
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Peter J, May M, Ahmed A, Ahmed A, Gilfrich C. [Simultaneous robot-assisted laparoscopic cystectomy and laparoscopic nephrectomy: first experience on 3 patients with short-term follow-up]. Aktuelle Urol 2012; 43:255-61. [PMID: 22869496 DOI: 10.1055/s-0032-1321827] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
BACKGROUND The standard treatment for the muscle-invasive bladder cancer (MIBC) adheres to the open radical cystectomy (RC), although in the last few years the RC was established in some centres. The MIBC with simultaneous renal pathology (carcinoma, loss of function) can be a reason for an RC in combination with a nephrectomy. In the present paper we give a report about our first 3 patients in whom we combined the robotic RC with a laparoscopic nephrectomy as a minimally invasive treatment. PATIENTS AND METHODS Between January and September 2010 3 male patients (average age 66 years) with MIBC and an associated renal pathology (2×loss of function, 1×upper tract carcinoma) were treated by the simultaneous robot-assisted RC and laparoscopic nephrectomy at our hospital. Clinical and pathological criteria, surgical techniques and preoperative complications were recorded prospectively. Follow-up of the 3 patients continued for at least of 18 months. RESULTS In all 3 cases primarily the kidney was prepared in a transperitoneal-laparoscopic way and clipped by the vessel pedicle, then the robot-assisted RC followed and specimens were removed through a 10-cm median laparotomy. In all cases an ileum conduit was built extracorporally in using this way. The median OP time (including nephrectomy, connection of Da-Vinci, RC with extended lymph node dissection) amounted to 7 h (6.5-7.5 h) in total. The intraoperative blood loss was 330 mL on average. One of our patients showed a grade 2 complication following the Clavien-Dindo classification (1×grade 1, 1×without perioperative complications). On average 32 (22-46) lymph nodes were taken out, whereby all patients showed a pN0 status. The pathological stagings of MIBC were pT3a, pT4a and pT4b. With one patient the cancer of the renal pelvis was limited to the lamina propria, with another patient an incidental prostate cancer was detected. All histopathological findings of the different cancers showed negative surgical margins. The median hospitalisation time was 17 (16-19) days. In an 18- to 26-month follow-up period all patients remained without any further postoperative complications and without a tumour relapse. CONCLUSION In this paper we have described the surgical steps of a small series of simultaneous robot-assisted RC and laparoscopic nephrectomy as a minimally invasive treatment in case of a specific indication. As a result of our report, we show that this surgical technique is possible without essential perioperative morbidity and with satisfying oncological results. Long-term data of our patients and results of any further studies are crucial to evaluate the efficiency of this complex surgical method.
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Affiliation(s)
- J. Peter
- Urologische Klinik, St. Elisabeth Klinikum Straubing, Straubing
| | - M. May
- Urologische Klinik, St. Elisabeth Klinikum Straubing, Straubing
| | - A. Ahmed
- Urologische Klinik, St. Elisabeth Klinikum Straubing, Straubing
| | - A. Ahmed
- Urologische Klinik, St. Elisabeth Klinikum Straubing, Straubing
| | - C. Gilfrich
- Urologische Klinik, St. Elisabeth Klinikum Straubing, Straubing
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