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L. Sagan · SciRah

Researcher profile · Semantic Scholar

L. Sagan

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L. Sagan — researcher profile on SciRah

h-index: 18
Works: 105
Citations: 1,136

Most-cited papers

Family-based and case-control study of DRD2, DAT, 5HTT, COMT genes polymorphisms in alcohol dependence.
J. Samochowiec, J. Kucharska-Mazur, A. Grzywacz, Marcin J. Jabłoński +6 more
2006Neuroscience Letters95 citations
Semantic Scholar
Magnetic resonance diffusion tensor imaging in psychiatry: a narrative review of its potential role in diagnosis
P. Podwalski, K. Szczygieł, E. Tyburski, L. Sagan +2 more
2020Pharmacological Reports66 citations Open access
Semantic Scholar
Interleukin-10 (IL10) and tumor necrosis factor alpha (TNF) gene polymorphisms in Parkinson's disease patients.
M. Białecka, G. Kłodowska-Duda, M. Kurzawski, J. Sławek +5 more
2008Parkinsonism & Related Disorders60 citations
Semantic Scholar
Global incidence of spinal perineural Tarlov’s cysts and their morphological characteristics: a meta-analysis of 13,266 subjects
T. Klepinowski, Wojciech Orbik, L. Sagan
2021Surgical and Radiologic Anatomy59 citations Open access
Semantic Scholar
Prevalence of high-riding vertebral artery: a meta-analysis of the anatomical variant affecting choice of craniocervical fusion method and its outcome.
T. Klepinowski, Bartłomiej Pala, Jagoda Cembik, L. Sagan
2020World Neurosurgery46 citations
Semantic Scholar
Endoscopic aqueductal stent placement for the treatment of a trapped fourth ventricle.
L. Sagan, I. Kojder, W. Poncyljusz
2006Journal of Neurosurgery42 citations
Semantic Scholar
Decreased use of active coping styles contributes to elevated allostatic load index in first-episode psychosis.
B. Misiak, K. Kotowicz, Olga Loska, F. Stramecki +9 more
2018Psychoneuroendocrinology33 citations
Semantic Scholar
Assessment of Complement Cascade Components in Patients With Bipolar Disorder
A. Reginia, J. Kucharska-Mazur, Marcin J. Jabłoński, M. Budkowska +6 more
2018Frontiers in Psychiatry31 citations Open access
Semantic Scholar
Color Trails Test: A New Set of Data on Cognitive Flexibility and Processing Speed in Schizophrenia
E. Tyburski, E. Karabanowicz, M. Mak, Zofia Lebiecka +4 more
2020Frontiers in Psychiatry28 citations Open access
Semantic Scholar
Executive Dysfunctions in Schizophrenia: A Critical Review of Traditional, Ecological, and Virtual Reality Assessments
E. Tyburski, M. Mak, Andrzej Sokołowski, Anna Starkowska +7 more
2021Journal of Clinical Medicine27 citations Open access
Semantic Scholar
Initial experience with implantation of novel dual layer flow-diverter device FRED
W. Poncyljusz, L. Sagan, K. Safranow, M. Rać
2013Wideochirurgia i inne techniki maloinwazyjne = Videosurgery and other miniinvasive techniques25 citations Open access
Semantic Scholar
The Relationship between Cognitive Functions and Psychopathological Symptoms in First Episode Psychosis and Chronic Schizophrenia
Katarzyna Rek-Owodziń, E. Tyburski, P. Plichta, Katarzyna Waszczuk +10 more
2022Journal of Clinical Medicine23 citations Open access
Semantic Scholar
Prevalence of high-riding vertebral arteries and narrow C2 pedicles among Central-European population: a computed tomography-based study
T. Klepinowski, N. Żyłka, Bartłomiej Pala, W. Poncyljusz +1 more
2021Neurosurgical review23 citations Open access
Semantic Scholar
White Matter Integrity of the Corpus Callosum and Psychopathological Dimensions in Deficit and Non-Deficit Schizophrenia Patients
P. Podwalski, E. Tyburski, K. Szczygieł, Katarzyna Waszczuk +13 more
2021Journal of Clinical Medicine19 citations Open access
Semantic Scholar
Cystic lesions of the sellar-suprasellar region - diagnosis and treatment.
E. Andrysiak-Mamos, K. Sagan, L. Sagan, E. Sowińska-Przepiera +1 more
2018Endokrynologia Polska19 citations Open access
Semantic Scholar
Quality of Life and Sleep in Patients with Pituitary Adenoma in Relation to Tumor Type and Compression of the Optic Chiasm
K. Sagan, E. Andrysiak-Mamos, E. Tyburski, L. Sagan +1 more
2021Journal of Clinical Medicine18 citations Open access
Semantic Scholar
Types of high-riding vertebral artery: a classification system for preoperative planning of C2 instrumentation based on 908 potential screw insertion sites.
T. Klepinowski, Natalia Żyłka, Samuel D. Pettersson, Jagoda Hanaya +6 more
2024The spine journal17 citations Open access
Semantic Scholar
Serum inflammatory markers and their associations with white matter integrity of the corpus callosum in schizophrenia patients and healthy controls.
A. Michalczyk, E. Tyburski, P. Podwalski, Katarzyna Waszczuk +12 more
2022Progress in Neuro-psychopharmacology and Biological Psychiatry17 citations
Semantic Scholar
Management of post-traumatic craniovertebral junction dislocation: A PRISMA-compliant systematic review and meta-analysis of casereports
T. Klepinowski, Bartosz Limanówka, L. Sagan
2020Neurosurgical review16 citations Open access
Semantic Scholar
Psychopathology and Integrity of the Superior Longitudinal Fasciculus in Deficit and Nondeficit Schizophrenia
P. Podwalski, E. Tyburski, K. Szczygieł, Krzysztof Rudkowski +9 more
2022Brain Science15 citations Open access
Semantic Scholar
The relationship between cingulum bundle integrity and different aspects of executive functions in chronic schizophrenia.
E. Tyburski, M. Mak, A. Samochowiec, P. Plichta +14 more
2020Progress in Neuro-psychopharmacology and Biological Psychiatry15 citations
Semantic Scholar
Risk of the high-riding variant of vertebral arteries at C2 is increased over twofold in rheumatoid arthritis: a meta-analysis
T. Klepinowski, Jagoda Cembik, L. Sagan
2020Neurosurgical review15 citations Open access
Semantic Scholar
Changes in cervical range of motion following anterior cervical discectomy with fusion - preliminary results.
Bartosz Limanówka, L. Sagan
2020Neurologia i Neurochirurgia Polska14 citations Open access
Semantic Scholar
Stent-Assisted Coiling of Unruptured MCA Aneurysms Using the LVIS Jr. Device: A Multicenter Registry
W. Poncyljusz, L. Zwarzany, Bartosz Limanówka, M. Zbroszczyk +3 more
2020Journal of Clinical Medicine13 citations Open access
Semantic Scholar
Treatment of acute ischemic brain infarction with the assistance of local intraarterial thrombolysis with recombinant tissue-type plasminogen activator
W. Poncyljusz, A. Falkowski, I. Kojder, E. Cebula +3 more
2007Acta Radiologica13 citations
Semantic Scholar
Gut microbiome in intracranial aneurysm growth, subarachnoid hemorrhage, and cerebral vasospasm: a systematic review with a narrative synthesis
T. Klepinowski, K. Skonieczna-Żydecka, Bartłomiej Pala, E. Stachowska +1 more
2023Frontiers in Neuroscience12 citations Open access
Semantic Scholar
External validation of the Chicago Chiari Outcome Scale in adults with Chiari malformation type I.
Lukasz Antkowiak, P. Stogowski, T. Klepinowski, T. Balinski +17 more
2023Neurosurgical Focus12 citations Open access
Semantic Scholar
Large deletion causing von Hippel-Lindau disease and hereditary breast cancer syndrome
K. Krzystolik, A. Jakubowska, J. Gronwald, M. Krawczyński +6 more
2014Hereditary Cancer in Clinical Practice12 citations Open access
Semantic Scholar
The importance of oxidative biomarkers in diagnosis, treatment, and monitoring schizophrenia patients.
Elżbieta Cecerska-Heryć, Aleksandra Polikowska, N. Serwin, A. Michalczyk +15 more
2024Schizophrenia Research11 citations
Semantic Scholar
Cognitive Dysfunctions Measured with the MCCB in Deficit and Non-Deficit Schizophrenia
P. Plichta, E. Tyburski, M. Bielecki, M. Mak +8 more
2023Journal of Clinical Medicine11 citations Open access
Semantic Scholar
Relationship of Corpus Callosum Integrity with Working Memory, Planning, and Speed of Processing in Patients with First-Episode and Chronic Schizophrenia
E. Tyburski, P. Podwalski, Katarzyna Waszczuk, Katarzyna Rek-Owodziń +16 more
2021Journal of Clinical Medicine11 citations Open access
Semantic Scholar
Elevated allostatic load index is associated with working memory deficits in first-episode psychosis.
B. Misiak, K. Kotowicz, Olga Loska, F. Stramecki +10 more
2019Schizophrenia Research11 citations
Semantic Scholar
Endolymphatic sac tumours and von Hippel-Lindau disease - case report, molecular analysis and histopathological characterization.
Karol Krzysztolik, C. Cybulski, L. Sagan, P. Nowacki +1 more
2009Folia Neuropathologica11 citations
Semantic Scholar
Maternal tetrahydrobiopterin deficiency: The course of two pregnancies and follow-up of two children in a mother with 6-pyruvoyl-tetrahydropterin synthase deficiency
M. Giżewska, G. Hnatyszyn, L. Sagan, L. Cyryłowski +5 more
2009Journal of Inherited Metabolic Disease10 citations
Semantic Scholar
Does SARS-CoV-2 Affect Human Semen? A Systematic Review and Meta-Analysis
T. Klepinowski, Marta Klepinowska, L. Sagan, A. Syrenicz
2023Archives of Sexual Behavior9 citations Open access
Semantic Scholar
Executive Functions and Psychopathology Dimensions in Deficit and Non-Deficit Schizophrenia
M. Bielecki, E. Tyburski, P. Plichta, M. Mak +9 more
2023Journal of Clinical Medicine9 citations Open access
Semantic Scholar
Evaluation of the Accero Stent for Stent-Assisted Coiling of Unruptured Wide-Necked Intracranial Aneurysm Treatment with Short-Term Follow-Up
W. Poncyljusz, K. Kubiak, L. Sagan, Bartosz Limanówka +1 more
2020Journal of Clinical Medicine9 citations Open access
Semantic Scholar
A prospective pilot study of gut microbiome in cerebral vasospasm and delayed cerebral ischemia after aneurysmal subarachnoid hemorrhage
T. Klepinowski, K. Skonieczna-Żydecka, I. Łoniewski, Samuel D. Pettersson +10 more
2024Scientific Reports8 citations Open access
Semantic Scholar
Serum Inflammatory Markers and Their Associations with the Integrity of the Cingulum Bundle in Schizophrenia, from Prodromal Stages to Chronic Psychosis
A. Michalczyk, E. Tyburski, P. Podwalski, Katarzyna Waszczuk +12 more
2022Journal of Clinical Medicine8 citations Open access
Semantic Scholar
Relationship between White Matter Alterations and Pathophysiological Symptoms in Patients with Ultra-High Risk of Psychosis, First-Episode, and Chronic Schizophrenia
Katarzyna Waszczuk, E. Tyburski, Katarzyna Rek-Owodziń, P. Plichta +10 more
2022Brain Science8 citations Open access
Semantic Scholar
Molecular classification of glioblastoma based on immunohistochemical expression of EGFR, PDGFRA, NF1, IDH1, p53 and PTEN proteins.
Sylwia Jankowska, M. Lewandowska, Marta Masztalewicz, L. Sagan +2 more
2021Polish journal of pathology : official journal of the Polish Society of Pathologists8 citations Open access
Semantic Scholar
Cushing's Syndrome in a Patient With Rathke's Cleft Cyst and ACTH Cell Hyperplasia Detected by 11C-Methionine PET Imaging—A Case Presentation
K. Sagan, E. Andrysiak-Mamos, L. Sagan, P. Nowacki +2 more
2020Frontiers in Endocrinology8 citations Open access
Semantic Scholar
Diagnostic value of non-enhanced computed tomography in identifying location of ruptured cerebral aneurysm in patients with aneurysmal subarachnoid haemorrhage.
M. Sawicki, Krzysztof Kościukiewicz, Dariusz Jeżewski, K. Chełstowski +8 more
2020Neurologia i Neurochirurgia Polska7 citations Open access
Semantic Scholar
Serum Inflammatory Markers and Integrity of the Superior Longitudinal Fasciculus and the Inferior Longitudinal Fasciculus in Schizophrenia, from Prodromal Stages to Chronic Psychosis—A Cross-Sectional Study
A. Michalczyk, E. Tyburski, P. Podwalski, Katarzyna Waszczuk +12 more
2023Journal of Clinical Medicine6 citations Open access
Semantic Scholar
C2 pars interarticularis length on the side of high-riding vertebral artery with implications for pars screw insertion
T. Klepinowski, Miszela Kałachurska, Michał Chylewski, Natalia Żyłka +5 more
2025Scientific Reports5 citations Open access
Semantic Scholar
Telovelar versus transvermian approach to tumors of the fourth ventricle and their impact on postoperative neurological complications: A multicenter study
Samuel D. Pettersson, Redwan Jabbar, M. Popławska, Aleksander Och +12 more
2023Surgical neurology international5 citations Open access
Semantic Scholar
Expanding Cyst of the Septum Pellucidum – Endoscopic Observations on the Mechanism of Development and Results of Treatment
L. Sagan, Bartosz Limanówka, L. Herbowski, W. Poncyljusz +1 more
2020Neurologia medico-chirurgica5 citations Open access
Semantic Scholar
Acute-on-chronic vertex epidural hematoma with diastasis of the sagittal suture in an adult: a case report.
T. Klepinowski, P. Kawalec, Michał Larysz, L. Sagan
2020World Neurosurgery5 citations
Semantic Scholar
Differential DNA methylation associated with delayed cerebral ischemia after aneurysmal subarachnoid hemorrhage: a systematic review
T. Klepinowski, Bartłomiej Pala, Samuel D. Pettersson, Kajetan Łątka +3 more
2024Neurosurgical review4 citations Open access
Semantic Scholar
Greater methylation of the IL-6 promoter region is associated with decreased integrity of the corpus callosum in schizophrenia.
A. Michalczyk, E. Tyburski, P. Podwalski, Katarzyna Waszczuk +12 more
2024Journal of Psychiatric Research4 citations
Semantic Scholar

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