Mark Hellmann

2024

Applicability of the New Myelin Oligodendrocyte Glycoprotein Antibody-associated Disease Diagnostic Criteria in an Israeli Cohort

Fineberg, A., Lotan, I., Bialer, O., Tiosano, A., Rozenblatt, S., Wilf-Yarkoni, A., Hellmann, M. & Stiebel-Kalish, H., Jul 2024, In: Israel Medical Association Journal. 26, 7, p. 434-440 7 p.

Research output: Contribution to journal › Article › peer-review

Application of the international criteria for optic neuritis in the Acute Optic Neuritis Network

Klyscz, P., Asseyer, S., Alonso, R., Bereuter, C., Bialer, O., Bick, A., Carta, S., Chen, J. J., Cohen, L., Cohen-Tayar, Y., Contentti, E. C., Dale, R. C., Flanagan, E. P., Gernert, J. A., Haas, J., Havla, J., Heesen, C., Hellmann, M., Levin, N. & Lopez, P. & 31 others, Lotan, I., Luis, M. B., Mariotto, S., Mayer, C., Vergara, A. J. M., Ocampo, C., Ochoa, S., Oertel, F. C., Olszewska, M., Uribe, J. L. P., Sastre-Garriga, J., Scocco, D., Ramanathan, S., Rattanathamsakul, N., Shi, F. D., Shifa, J., Simantov, I., Siritho, S., Tiosano, A., Tisavipat, N., Torres, I., Dembinsky, A. V., Vidal-Jordana, A., Wilf-Yarkoni, A., Wu, T., Zamir, S., Zarco, L. A., Zimmermann, H. G., Petzold, A., Paul, F. & Stiebel-Kalish, H., 2024, (Accepted/In press) In: Annals of Clinical and Translational Neurology.

Research output: Contribution to journal › Article › peer-review

Open Access

Association between clinical characteristics, acute steroid treatment and oligoclonal bands result in multiple sclerosis: A retrospective study

Tolkovsky, A., Pardo, K., Hellmann, M., Lotan, I., Auriel, E. & Wilf-Yarkoni, A., May 2024, In: Multiple Sclerosis and Related Disorders. 85, 105554.

Research output: Contribution to journal › Article › peer-review

The effect of COVID-19 vaccination on multiple sclerosis activity as reflected by MRI

Ganelin-Cohen, E., Buxbaum, C., Bosak, N., Sobol, S., Vaknin-Dembinsky, A., Hellmann, M. A., Wilf-Yarkoni, A., Regev, K., Pustovoyt, E., Shifrin, A., Wexler, Y. & Rozenberg, A., Jul 2024, In: Brain and Behavior. 14, 7, e3587.

Research output: Contribution to journal › Article › peer-review

Open Access

2023

Author Correction: Obesity is associated with myelin oligodendrocyte glycoprotein antibody-associated disease in acute optic neuritis (Scientific Reports, (2022), 12, 1, (21312), 10.1038/s41598-022-21592-8)

Stiebel-Kalish, H., Rubarth, K., Shouchane-Blum, K., Tiosano, A., Lotan, I., Hellmann, M. A., Wilf-Yarkoni, A., Bialer, O., Flanagan, E. P., Pittock, S. J., Bhatti, M. T., Schmitz-Hübsch, T., Paul, F., Asseyer, S. & Chen, J. J., Dec 2023, In: Scientific Reports. 13, 1, 2944.

Research output: Contribution to journal › Comment/debate

Open Access

Effectiveness of oral prednisone tapering following intravenous methylprednisolone for acute optic neuritis in multiple sclerosis

Wilf-Yarkoni, A., Feldmann, K., Rubarth, K., Dorsch, E. M., Rust, R., Urman, I., Hellmann, M. A., Friedman, Y., Lotan, I., Bialer, O., Buenrostro, G. S., Zimmermann, H. G., Leutloff, C., Schmitz-Hübsch, T., Paul, F., Asseyer, S. & Stiebel-Kalish, H., Dec 2023, In: PLoS ONE. 18, 12 December, e0288366.

Research output: Contribution to journal › Article › peer-review

Open Access

Intravenous immunoglobulin treatment for acute attacks in myelin oligodendrocyte glycoprotein antibody disease

Lotan, I., Chen, J. J., Hacohen, Y., Abdel-Mannan, O., Mariotto, S., Huda, S., Gibbons, E., Wilf-Yarkoni, A., Hellmann, M. A., Stiebel-Kalish, H., Pittock, S. J., Flanagan, E. P., Molazadeh, N., Anderson, M., Salky, R., Romanow, G., Schindler, P., Duchow, A. S., Paul, F. & Levy, M., Aug 2023, In: Multiple Sclerosis Journal. 29, 9, p. 1080-1089 10 p.

Research output: Contribution to journal › Article › peer-review

Open Access

2 Scopus citations

The Acute Optic Neuritis Network (ACON): Study protocol of a non-interventional prospective multicenter study on diagnosis and treatment of acute optic neuritis

Asseyer, S., Asgari, N., Bennett, J., Bialer, O., Blanco, Y., Bosello, F., Camos-Carreras, A., Carnero Contentti, E., Carta, S., Chen, J., Chien, C., Chomba, M., Dale, R. C., Dalmau, J., Feldmann, K., Flanagan, E. P., Froment Tilikete, C., Garcia-Alfonso, C., Havla, J. & Hellmann, M. & 42 others, Kim, H. J., Klyscz, P., Konietschke, F., La Morgia, C., Lana-Peixoto, M., Leite, M. I., Levin, N., Levy, M., Llufriu, S., Lopez, P., Lotan, I., Lugaresi, A., Marignier, R., Mariotto, S., Mollan, S. P., Ocampo, C., Cosima Oertel, F., Olszewska, M., Palace, J., Pandit, L., Peralta Uribe, J. L., Pittock, S., Ramanathan, S., Rattanathamsakul, N., Saiz, A., Samadzadeh, S., Sanchez-Dalmau, B., Saylor, D., Scheel, M., Schmitz-Hübsch, T., Shifa, J., Siritho, S., Sperber, P. S., Subramanian, P. S., Tiosano, A., Vaknin-Dembinsky, A., Mejia Vergara, A. J., Wilf-Yarkoni, A., Zarco, L. A., Zimmermann, H. G., Paul, F. & Stiebel-Kalish, H., 2023, In: Frontiers in Neurology. 14, 1102353.

Research output: Contribution to journal › Article › peer-review

Open Access

6 Scopus citations

2022

Association of Maintenance Intravenous Immunoglobulin with Prevention of Relapse in Adult Myelin Oligodendrocyte Glycoprotein Antibody-Associated Disease

Chen, J. J., Huda, S., Hacohen, Y., Levy, M., Lotan, I., Wilf-Yarkoni, A., Stiebel-Kalish, H., Hellmann, M. A., Sotirchos, E. S., Henderson, A. D., Pittock, S. J., Bhatti, M. T., Eggenberger, E. R., Di Nome, M., Kim, H. J., Kim, S. H., Saiz, A., Paul, F., Dale, R. C. & Ramanathan, S. & 13 others, Palace, J., Camera, V., Leite, M. I., Lam, B. L., Bennett, J. L., Mariotto, S., Hodge, D., Audoin, B., Maillart, E., Deschamps, R., Pique, J., Flanagan, E. P. & Marignier, R., May 2022, In: JAMA Neurology. 79, 5, p. 518-525 8 p.

Research output: Contribution to journal › Article › peer-review

Open Access

47 Scopus citations

Details and outcomes of a large cohort of MOG-IgG associated optic neuritis

Chen, J. J., Flanagan, E. P., Bhatti, M. T., Tisavipat, N., Jamali, S., Kunchok, A., Eggenberger, E. R., Nome, M. D., Sotirchos, E. S., Vasileiou, E. S., Henderson, A. D., Arnold, A. C., Bonelli, L., Seleme, N., Mejia-Vergara, A. J., Moss, H. E., Padungkiatsagul, T., Stiebel-Kalish, H., Lotan, I. & Wilf-Yarkoni, A. & 4 others, Hellmann, M. A., Vuppala, A., Hodge, D. & Pittock, S. J., Dec 2022, In: Multiple Sclerosis and Related Disorders. 68, 104237.

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

Early safety and tolerability profile of the BNT162b2 COVID-19 vaccine in myasthenia gravis

Lotan, I., Hellmann, M. A., Friedman, Y., Stiebel-Kalish, H., Steiner, I. & Wilf-Yarkoni, A., Mar 2022, In: Neuromuscular Disorders. 32, 3, p. 230-235 6 p.

Research output: Contribution to journal › Article › peer-review

Open Access

14 Scopus citations

Humoral and Cellular Immune Responses to SARS-CoV-2 mRNA Vaccination in Patients with Multiple Sclerosis: An Israeli Multi-Center Experience Following 3 Vaccine Doses

The Israeli Neuroimmunology Study Group on COVID-19 Vaccination in Multiple Sclerosis, 1 Apr 2022, In: Frontiers in Immunology. 13, 868915.

Research output: Contribution to journal › Article › peer-review

Open Access

33 Scopus citations

Obesity is associated with myelin oligodendrocyte glycoprotein antibody-associated disease in acute optic neuritis

Stiebel-Kalish, H., Rubarth, K., Shouchane-Blum, K., Tiosano, A., Lotan, I., Hellmann, M. A., Wilf-Yarkoni, A., Bialer, O., Flanagan, E. P., Pittock, S. J., Bhatti, M. T., Schmitz-Hübsch, T., Friedemann, P., Asseyer, S. & Chen, J. J., Dec 2022, In: Scientific Reports. 12, 1, 21312.

Research output: Contribution to journal › Article › peer-review

Open Access

4 Scopus citations

OCT retinal nerve fiber layer thickness differentiates acute optic neuritis from MOG antibody-associated disease and Multiple Sclerosis: RNFL thickening in acute optic neuritis from MOGAD vs MS

Chen, J. J., Sotirchos, E. S., Henderson, A. D., Vasileiou, E. S., Flanagan, E. P., Bhatti, M. T., Jamali, S., Eggenberger, E. R., Dinome, M., Frohman, L. P., Arnold, A. C., Bonelli, L., Seleme, N., Mejia-Vergara, A. J., Moss, H. E., Padungkiatsagul, T., Stiebel-Kalish, H., Lotan, I., Hellmann, M. A. & Hodge, D. & 5 others, Oertel, F. C., Paul, F., Saidha, S., Calabresi, P. A. & Pittock, S. J., Feb 2022, In: Multiple Sclerosis and Related Disorders. 58, 103525.

Research output: Contribution to journal › Article › peer-review

Open Access

37 Scopus citations

Repeated lumbar puncture in search of oligoclonal bands – What is the yield?

Mermelstein, M., Naftali, J., Wilf-Yarkoni, A., Lotan, I., Hellmann, M. A. & Steiner, I., 15 Aug 2022, In: Journal of the Neurological Sciences. 439, 120298.

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

2021

Alemtuzumab mediates the CD39⁺ T-regulatory cell response via CD23⁺ macrophages

Remez, L., Ganelin-Cohen, E., Safina, D., Hellmann, M. A., Lotan, I., Bosak, N., Buxbaum, C., Vaknin, A., Shifrin, A. & Rozenberg, A., 1 May 2021, In: Immunology and Cell Biology. 99, 5, p. 521-531 11 p.

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Chronic low-dose intravenous immunoglobulins as steroid-sparing therapy in myasthenia gravis

Wilf-Yarkoni, A., Lotan, I., Steiner, I. & Hellmann, M. A., Oct 2021, In: Journal of Neurology. 268, 10, p. 3871-3877 7 p.

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Exacerbation of myasthenia gravis following corticosteroid treatment: what is the evidence? A systematic review

Lotan, I., Hellmann, M. A., Wilf-Yarkoni, A. & Steiner, I., Dec 2021, In: Journal of Neurology. 268, 12, p. 4573-4586 14 p.

Research output: Contribution to journal › Review article › peer-review

22 Scopus citations

Mild Phenotype of Wolfram Syndrome Associated With a Common Pathogenic Variant Is Predicted by a Structural Model of Wolframin

Wilf-Yarkoni, A., Shor, O., Fellner, A., Hellmann, M. A., Pras, E., Yonath, H., Shkedi-Rafid, S., Basel-Salmon, L., Bazak, L., Eliahou, R., Greenbaum, L., Stiebel-Kalish, H., Benninger, F. & Goldberg, Y., 19 Apr 2021, In: Neurology: Genetics. 7, 2, p. e578

Research output: Contribution to journal › Article › peer-review

Open Access

10 Scopus citations

Safety of the BNT162b2 COVID-19 vaccine in multiple sclerosis (MS): Early experience from a tertiary MS center in Israel

Lotan, I., Wilf-Yarkoni, A., Friedman, Y., Stiebel-Kalish, H., Steiner, I. & Hellmann, M. A., Nov 2021, In: European Journal of Neurology. 28, 11, p. 3742-3748 7 p.

Research output: Contribution to journal › Article › peer-review

Open Access

55 Scopus citations

2020

Cohort profile: A collaborative multicentre study of retinal optical coherence tomography in 539 patients with neuromyelitis optica spectrum disorders (CROCTINO)

Specovius, S., Zimmermann, H. G., Oertel, F. C., Chien, C., Bereuter, C., Cook, L. J., Lana Peixoto, M. A., Fontenelle, M. A., Kim, H. J., Hyun, J. W., Jung, S. K., Palace, J., Roca-Fernandez, A., Diaz, A. R., Leite, M. I., Sharma, S. M., Ashtari, F., Kafieh, R., Dehghani, A. & Pourazizi, M. & 38 others, Pandit, L., Dcunha, A., Aktas, O., Ringelstein, M., Albrecht, P., May, E., Tongco, C., Leocani, L., Pisa, M., Radaelli, M., Martinez-Lapiscina, E. H., Stiebel-Kalish, H., Hellmann, M., Lotan, I., Siritho, S., De Seze, J., Senger, T., Havla, J., Marignier, R., Tilikete, C., Cobo Calvo, A., Bichuetti, D. B., Tavares, I. M., Asgari, N., Soelberg, K., Altintas, A., Yildirim, R., Tanriverdi, U., Jacob, A., Huda, S., Rimler, Z., Reid, A., Mao-Draayer, Y., De Castillo, I. S., Yeaman, M. R., Smith, T. J., Brandt, A. U. & Paul, F., 29 Oct 2020, In: BMJ Open. 10, 10, e035397.

Research output: Contribution to journal › Article › peer-review

Open Access

11 Scopus citations

Incidence of AChR Ab-positive myasthenia gravis in Israel: A population-based study

Lotan, I., Benninger, F., Hellmann, M. A., Sicsic, C., Brenner, T., Kahana, E. & Steiner, I., 1 Jul 2020, In: Acta Neurologica Scandinavica. 142, 1, p. 66-73 8 p.

Research output: Contribution to journal › Article › peer-review

Open Access

9 Scopus citations

Saliva immunoglobulin free light chain analysis for monitoring disease activity and response to treatment in multiple sclerosis

Lotan, I., Ganelin-Cohen, E., Tartakovsky, E., Khasminsky, V., Hellmann, M. A., Steiner, I., Ben-Zvi, I., Livneh, A., Golderman, S. & Kaplan, B., Sep 2020, In: Multiple Sclerosis and Related Disorders. 44, 102339.

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

2019

Does CSF pleocytosis have a predictive value for disease course in MS?

Lotan, I., Benninger, F., Mendel, R., Hellmann, M. A. & Steiner, I., 1 Sep 2019, In: Neurology: Neuroimmunology and NeuroInflammation. 6, 5

Research output: Contribution to journal › Article › peer-review

Open Access

13 Scopus citations

Does time equal vision in the acute treatment of a cohort of AQP4 and MOG optic neuritis?

Stiebel-Kalish, H., Hellmann, M. A., Mimouni, M., Paul, F., Bialer, O., Bach, M. & Lotan, I., 1 Jul 2019, In: Neurology: Neuroimmunology and NeuroInflammation. 6, 4, e572.

Research output: Contribution to journal › Article › peer-review

Open Access

141 Scopus citations

2018

Myelin oligodendrocyte glycoprotein-positive optic neuritis masquerading as pseudotumor cerebri at presentation

Lotan, I., Brody, J., Hellmann, M. A., Bialer, O., Ganelin-Cohen, E., Michaeli, N., Marignier, R. & Stiebel-Kalish, H., 1 Sep 2018, In: Journal of Neurology. 265, 9, p. 1985-1988 4 p.

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Recurrent optic neuritis – Different patterns in multiple sclerosis, neuromyelitis optica spectrum disorders and MOG-antibody disease

Lotan, I., Hellmann, M. A., Benninger, F., Stiebel-Kalish, H. & Steiner, I., 15 Nov 2018, In: Journal of Neuroimmunology. 324, p. 115-118 4 p.

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

2017

Retinal nerve fiber layer may be better preserved in MOG-IgG versus AQP4-IgG optic neuritis: A cohort study

Stiebel-Kalish, H., Lotan, I., Brody, J., Chodick, G., Bialer, O., Marignier, R., Bach, M. & Hellmann, M. A., Jan 2017, In: PLoS ONE. 12, 1, e0170847.

Research output: Contribution to journal › Article › peer-review

Open Access

54 Scopus citations

2016

A non-travel related case of Angiostrongylus cantonensis eosinophilic meningomyelitis acquired in Israel

Fellner, A., Hellmann, M. A., Kolianov, V. & Bishara, J., 15 Nov 2016, In: Journal of the Neurological Sciences. 370, p. 241-243 3 p.

Research output: Contribution to journal › Letter › peer-review

5 Scopus citations

Neuromyelitis optica spectrum disorder: Disease course and long-term visual outcome

Brody, J., Hellmann, M. A., Marignier, R., Lotan, I. & Stiebel-Kalish, H., 2016, In: Journal of Neuro-Ophthalmology. 36, 4, p. 356-362 7 p.

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Prior damage to lower motor neuron triggering myasthenia gravis

Steiner, I., Goldstein, L., Hellmann, M. A. & Lotan, I., 1 Jul 2016, In: Muscle and Nerve. 54, 1, p. 167-169 3 p.

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

2015

Frequent misdiagnosis of adult polyglucosan body disease

Hellmann, M. A., Kakhlon, O., Landau, E. H., Sadeh, M., Giladi, N., Schlesinger, I., Kidron, D., Abramsky, O., Reches, A., Argov, Z., Rabey, J. M., Chapman, J., Rosenmann, H., Gal, A., Moshe Gomori, J., Meiner, V. & Lossos, A., 1 Oct 2015, In: Journal of Neurology. 262, 10, p. 2346-2351 6 p.

Research output: Contribution to journal › Article › peer-review

31 Scopus citations

2014

Maintenance IVIg therapy in myasthenia gravis does not affect disease activity

Hellmann, M. A., Mosberg-Galili, R., Lotan, I. & Steiner, I., 15 Mar 2014, In: Journal of the Neurological Sciences. 338, 1-2, p. 39-42 4 p.

Research output: Contribution to journal › Article › peer-review

32 Scopus citations

Tumefactive demyelination and a malignant course in an MS patient during and following fingolimod therapy

Hellmann, M. A., Lev, N., Lotan, I., Mosberg-Galili, R., Inbar, E., Luckman, J., Fichman-Horn, S., Yakimov, M. & Steiner, I., 15 Sep 2014, In: Journal of the Neurological Sciences. 344, 1-2, p. 193-197 5 p.

Research output: Contribution to journal › Article › peer-review

32 Scopus citations

2013

Myasthenia gravis in the elderly

Hellmann, M. A., Mosberg-Galili, R. & Steiner, I., 15 Feb 2013, In: Journal of the Neurological Sciences. 325, 1-2, p. 1-5 5 p.

Research output: Contribution to journal › Article › peer-review

41 Scopus citations

Thoracic sensory level as a false localizing sign in cervical spinal cord and brain lesions

Hellmann, M. A., Djaldetti, R., Luckman, J. & Dabby, R., Jan 2013, In: Clinical Neurology and Neurosurgery. 115, 1, p. 54-56 3 p.

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

2011

Sudden sensorineural hearing loss in multiple sclerosis: Clinical course and possible pathogenesis

Hellmann, M. A., Steiner, I. & Mosberg-Galili, R., Oct 2011, In: Acta Neurologica Scandinavica. 124, 4, p. 245-249 5 p.

Research output: Contribution to journal › Article › peer-review

Open Access

44 Scopus citations

2010

Unilateral lower limb rest tremor is not necessarily a presenting symptom of Parkinson's disease

Hellmann, M. A., Melamed, E., Steinmetz, A. P. & Djaldetti, R., 15 May 2010, In: Movement Disorders. 25, 7, p. 924-927 4 p.

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

2008

Bent spine and knees in Parkinson’s disease

Hellmann, M. A., Djaldetti, R. & Melamed, E., 1 Jan 2008, Movement Disorders: 100 Instructive Cases. CRC Press, p. 121-123 3 p.

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

Effect of subcutaneous apomorphine on tremor in idiopathic Parkinson's disease

Hellmann, M. A., Sabach, T., Melamed, E. & Djaldetti, R., Apr 2008, In: Biomedicine and Pharmacotherapy. 62, 4, p. 250-252 3 p.

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

2006

Effect of deep brain subthalamic stimulation on camptocormia and postural abnormalities in idiopathic Parkinson's disease

Hellmann, M. A., Djaldetti, R., Israel, Z. & Melamed, E., Nov 2006, In: Movement Disorders. 21, 11, p. 2008-2010 3 p.

Research output: Contribution to journal › Article › peer-review

55 Scopus citations

Increased survival and migration of engrafted mesenchymal bone marrow stem cells in 6-hydroxydopamine-lesioned rodents

Hellmann, M. A., Panet, H., Barhum, Y., Melamed, E. & Offen, D., 6 Mar 2006, In: Neuroscience Letters. 395, 2, p. 124-128 5 p.

Research output: Contribution to journal › Article › peer-review

137 Scopus citations

2004

Bent knees and tiptoeing: Late manifestations of end-stage Parkinson's disease

Djaldetti, R., Hellmann, M. & Melamed, E., Nov 2004, In: Movement Disorders. 19, 11, p. 1325-1328 4 p.

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

The role of neurotransmitters and neuropeptides in Parkinson's disease: Implications for therapy

Gilgun-Sherki, Y., Hellmann, M., Melamed, E. & Offen, D., Dec 2004, In: Drugs of the Future. 29, 12, p. 1261-1272 12 p.

Research output: Contribution to journal › Review article › peer-review

10 Scopus citations

2002

Focal dystonia as the presenting sign in Creutzfeldt-Jakob disease

Hellmann, A. M. & Melamed, E., Sep 2002, In: Movement Disorders. 17, 5, p. 1097-1098 2 p.

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Mark Hellmann

Research output

Search results