المؤلفون: Yesim Parman, Duygu Gezen-Ak, Arman Çakar, Hacer Durmus, Hasan Demirci, Erdinç Dursun, Merve Alaylıoğlu

المصدر: Acta Neurologica Scandinavica. 144:640-646

مصطلحات موضوعية: Adult, Pathology, medicine.medical_specialty, Amyloid beta, Cognition, Cerebrospinal fluid, medicine, Humans, Prealbumin, Neuropsychological assessment, Aged, Amyloid Neuropathies, Familial, Amyloid beta-Peptides, biology, medicine.diagnostic_test, business.industry, Amyloidosis, Neuropsychology, General Medicine, Middle Aged, medicine.disease, Transthyretin, Neuropeptide processing, Neurology, biology.protein, Neurology (clinical), Verbal memory, business

الوصف: Objectives Hereditary amyloidogenic transthyretin (ATTRv) amyloidosis is an autosomal dominant disorder caused by mutations of the transthyretin (TTR) gene. The mutant ATTRv protein causes a systemic accumulation of amyloid fibrils in various organs. TTR is an important protein in the central nervous system physiology for the maintenance of normal cognitive process during aging, amidated neuropeptide processing, and nerve regeneration. The neuroprotective effect of transthyretin has been widely documented in animal models. Cognitive consequences of the mutant TTR in hereditary ATTRv amyloidosis patients remain still to be elucidated. We designed this study to investigate the cognitive involvement in ATTRv amyloidosis. Methods Detailed neuropsychological tests and cranial MRIs were performed. Biomarkers including amyloid beta 1-42, total tau, and phosphorylated tau were investigated in the cerebrospinal fluid samples. Results Median age of the cohort was 52 years (ranges 34-72). Neuropsychological assessment results were compatible with impaired executive functions (in all patients except one with only bilateral carpal tunnel syndrome, long-term visual and long-term verbal memory (severe in four patients and moderate in one). Visuospatial judgment and perception were impaired in six. Mean cerebrospinal fluid Aβ1-42 (pg/ml) was 878.0 ± 249.5 in patients with cortical atrophyin MRI whereas 1210.0 ± 45.9 in patients without any cortical atrophy. Cranial MRI showed cortical atrophy in six patients (6/10). Conclusion Our data showed the significance of the TTR protein in cognitive functions and highlighted the importance of the close follow-up of cognitive functions in ATTRv amyloidosis patients.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d9724c649b8ea1731d1d03342f2322dTest
https://doi.org/10.1111/ane.13507Test

المؤلفون: Bedia Samanci, Esra Battaloglu, Seden Tezel, Erdi Şahin, Başar Bilgiç, Ayse Candayan, A. Nazli Basak, Hacer Durmus, Yesim Parman, Hasmet Hanagasi, Arman Çakar

المصدر: Acta Neurologica Belgica. 122:939-945

مصطلحات موضوعية: Adult, Gait Ataxia, medicine.medical_specialty, Pediatrics, Ataxia, Neurology, Cerebellar Ataxia, Bilateral Vestibulopathy, Late onset, 03 medical and health sciences, 0302 clinical medicine, medicine, Humans, 030212 general & internal medicine, Vestibular areflexia, Cerebellar ataxia, business.industry, Peripheral Nervous System Diseases, Syndrome, General Medicine, Middle Aged, medicine.disease, Bilateral vestibulopathy, Vestibular Diseases, Sensation Disorders, Neurology (clinical), medicine.symptom, business, Polyneuropathy, 030217 neurology & neurosurgery

الوصف: Cerebellar ataxia, neuropathy, vestibular areflexia syndrome (CANVAS) is a late-onset, slowly progressive disorder characterized by cerebellar ataxia, sensory neuropathy and bilateral vestibulopathy. Recently, a biallelic intronic AAGGG repeat expansion, (AAGGG)exp, in the Replication Factor C1 (RFC1) gene was identified as the cause of this disorder. In this study, we describe the phenotypic features of five patients from five different families diagnosed as CANVAS. The mean age at onset was 49.00 ± 9.05 years (between 34 and 56 years) and the most frequent presenting symptom in CANVAS was gait ataxia, followed by sensory disturbances. Persistent coughing was prominent in three patients, and it preceded the onset of ataxia and sensory symptoms in two patients. Parental consanguinity was present in three patients. Two patients showed symptoms or signs suggesting autonomic involvement. Sural nerve biopsy revealed axonal neuropathy in two patients. The mean age at onset was 49.00 ± 9.05 years (between 34 and 56 years) and the most frequent presenting symptom in CANVAS was gait ataxia, followed by sensory disturbances. Persistent coughing was prominent in three patients, and it preceded the onset of ataxia and sensory symptoms in two patients. Parental consanguinity was present in three patients. Two patients showed symptoms or signs suggesting autonomic involvement. Sural nerve biopsy revealed axonal neuropathy in two patients. Our study describes clinical findings, histopathological features and diagnostic clues of CANVAS from Turkey, a country with a high consanguineous marriage rate. Repeat expansion in the RFC1 gene should be considered in all cases with late-onset ataxia, especially when sensory disturbances, vestibular involvement and persistent coughing coexist.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83d1e2100ae43e04ffddb74f5c79656cTest
https://doi.org/10.1007/s13760-021-01721-2Test

المؤلفون: Esen Kiyan, Hacer Durmus, Zuleyha Bingol, Aylin Pihtili, Yesim Parman

المصدر: Muscle & Nerve. 63:683-689

مصطلحات موضوعية: Male, 0301 basic medicine, Vital capacity, Physiology, Diaphragm, Vital Capacity, Diaphragmatic breathing, Polysomnography, 030105 genetics & heredity, Ambulatory Care Facilities, Hypoxemia, Hypercapnia, 03 medical and health sciences, Cellular and Molecular Neuroscience, FEV1/FVC ratio, 0302 clinical medicine, Physiology (medical), Humans, Medicine, Outpatient clinic, Aged, Retrospective Studies, medicine.diagnostic_test, business.industry, Amyotrophic Lateral Sclerosis, Middle Aged, medicine.disease, Respiratory Function Tests, Obstructive sleep apnea, Pulse oximetry, Anesthesia, Female, Neurology (clinical), medicine.symptom, business, 030217 neurology & neurosurgery

الوصف: INTRODUCTION In this study, we aimed to evaluate diaphragmatic dysfunction (DD) by using a practical approach in patients with amyotrophic lateral sclerosis (ALS) at the first visit to a chest diseases outpatient clinic. METHODS Patients with ALS seen in our outpatient clinic for the past 5 y and followed up for at least 1 y, were retrospectively evaluated. Having at least one of the following three criteria was accepted as DD: (a) paradoxical abdominal movement (PAM), (b) sitting-supine forced vital capacity (FVC) difference ≥ 20%, (c) sitting-supine arterial oxygen saturation measured by pulse oximetry (SpO2 ) difference ≥ 4%. Respiratory symptoms, arterial blood gas analysis, sleep studies, noninvasive mechanical ventilation use, and mortality were recorded. RESULTS Five-hundred patients with ALS were included (female/male: 220/280, age: 58.9 ± 11.3 y). Of the patients, 22.8% had daytime hypercapnia. DD was observed in 55% of the patients (PAM in 112, sitting-supine FVC difference ≥ 20% in 50, and sitting-supine SpO2 difference ≥ 4% in 113 patients). Of the patients with DD, 31.6% (n = 87) had no respiratory symptoms, 46.4% had FVC > 70% and 33.5% had FVC

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7cda2c360f31c96a868ac69dfa556585Test
https://doi.org/10.1002/mus.27200Test

المؤلفون: Hacer Durmus, Said Hashemolhosseini, Isin Baral Kulaksizoglu, Yesim Parman, Evren Önay Uçar, Serdar Ceylaner, Heinrich Sticht, Elif Mertoğlu

المصدر: Neurological Sciences. 42:3871-3878

مصطلحات موضوعية: Adult, Pathology, medicine.medical_specialty, Psychosis, Pes cavus, Weakness, Ataxia, Neurology, Cerebellar Ataxia, Glycoside Hydrolases, Dermatology, Young Adult, 03 medical and health sciences, 0302 clinical medicine, medicine, Humans, 030212 general & internal medicine, Child, business.industry, Neurodegeneration, General Medicine, Postural tremor, medicine.disease, Psychiatry and Mental health, medicine.anatomical_structure, Psychotic Disorders, Mutation, Female, Neurology (clinical), medicine.symptom, business, 030217 neurology & neurosurgery, Sensory nerve

الوصف: The protein “ADP-Ribosylarginine Hydrolase-Like Protein 2” is encoded by ADPRHL2 and reverses ADP-ribosylation. Recently, mutations in ADPRHL2 were found to be associated with a very rare childhood onset severe neurodegeneration syndrome with episodic, stress-induced seizures, ataxia, and axonal neuropathy. In this study, we evaluate a novel mutation in ADPRHL2 leading to an unknown adult onset syndrome “episodic psychosis, ataxia, motor neuropathy with pyramidal signs (PAMP syndrome).” Four patients with episodic psychosis, ataxia, and motor neuropathy with pyramidal signs were included in this study. An index patient presented ataxia, postural tremor in the hands, and hallucinations at age 20 years, which had started after a viral infection. She improved within 3 months without any treatment. Her neurological exam revealed mild distal weakness, brisk DTRs, bilateral Babinski sign, impaired vibration sensation, position, and ataxia. Pes cavus and hammer toes were also noted. EMG revealed neurogenic changes in distal muscles and normal sensory nerve conduction studies. Cranial MRI was normal. She had three more severe episodes in recent years, and her neurologic findings got progressively worse. Two of her older sisters had much milder phenotypes. The phenotype of the fourth patient from an unrelated family was identical with the index patient. All affected patients had homozygous novel NM_017825.3:c.838G>A (p.Ala280Thr) mutations in a highly conserved region of ADPRHL2. Western blot analyses demonstrated that ADPRHL2 was not expressed in these patients. Here, we describe a novel mutation in ADPRHL2, which further expands the phenotypic and genetic spectrum of the patients harboring these mutations.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68397fc2d003eeb228645cc4d972be67Test
https://doi.org/10.1007/s10072-021-05100-wTest

المؤلفون: David Adams, Michael Polydefkis, Alejandra González-Duarte, Jonas Wixner, Arnt V Kristen, Hartmut H Schmidt, John L Berk, Inés Asunción Losada López, Angela Dispenzieri, Dianna Quan, Isabel M Conceição, Michel S Slama, Julian D Gillmore, Theodoros Kyriakides, Senda Ajroud-Driss, Márcia Waddington-Cruz, Michelle M Mezei, Violaine Planté-Bordeneuve, Shahram Attarian, Elizabeth Mauricio, Thomas H Brannagan, Mitsuharu Ueda, Emre Aldinc, Jing Jing Wang, Matthew T White, John Vest, Erhan Berber, Marianne T Sweetser, Teresa Coelho, Giuseppe Vita, Vincenzo Rizzo, Massimo Russo, Anna Mazzeo, Luca Gentile, Caitlin Brueckner, Victoria Lazzari, Janice Wiesman, Douglas DeLong, Jennifer Victory, James Dalton, John May, Catherine Gilmore, Saran Diallo, Emilien Delmont, Jean Pouget, Annie Verschueren, Aude-Marie Grapperon, Emmanuelle Campana-Salort, Ana Lopes, Filipa Lamas, Carlos Neves, Jose Castro, Pedro Pereira, Isabel Castro, Ana Franco, Miguel Oliveira Santos, Conceição de Azevedo Coutinho, Catarina Falcao de Campos, Antonio Hipólito Reis, Nuno Correia, Javier M Perez, Ana Martins da Silva, Cristina Alves, Marcio Cardoso, Katia Valdrez, Julia R Monte, Bernardete Pessoa, Nadia Guimaraes, Monica Freitas, Joana Ramalho, Natalia Ferreira, Daisuke Kuzume, Celine Tard, Nawal Waucquier, Isabelle Rougeaux, Sylvie Brice, Emmanuelle Kasprzyk, Elise Elrezzi, Sayah Meguig, Eric Hachulla, Clement Gauvain, Maria-Claire Migaud-Chervy, Dominique Deplanque, Elsa Jozefowicz, Loic Lebellec, Line Balaya-Gouraya, Nathalie Jehan Lacour, Halima Bournane, Nathalie Martin, Mongia Elabed, Niamey Sacko, Yasmine Boubrit, Amina Gaouar, Fetra Rakotondratafika, Marie Théaudin-Saliou, Cécile Cauquil-Michon, Celine Labeyrie, Adeline Not, Abdallah Al-Salameh, Anne-Lise Lecoq, Maeva Stephant, Andoni Echaniz-Laguna, Laurent Becquemont, Guillemette Beaudonnet, Vincent Algalarrondo, Ludivine Eliahou, Antoine Rousseau, Aissatou Signate, Emeline Berthelot, Jocelyn Inamo, Laetitia Vervoitte, Cecile Focseneanu, Thierry Gendre, Raphaele Arrouasse, Samar S. Ayache, Laura Ernande, Philippe Le Corvoisier, Hayet Salhi, Ariane Choumert, Vincent Ehinger, Julie Ruiz, Cyril Charlin, Thomas Megelin, Thomas H Brannagan III, Raisy Fayerman, Arreum Kim, Allan Paras, Leidy J Gonzalez, Steven Tsang, Fernanda Wajnsztajn, Jeffrey Shije, Christina Ulane, Inna Kleyman, Louis Weimer, Comana Cioroiu, Sakis Lambrianides, Rana Abu-Manneh, Eleni Zamba-Papanicolaou, Petros Agathangelou, Eleni Leonidou, Satoshi Tada, Akemi Fujita, Masahiro Nagai, Rina Ando, Yuko Hosokawa, Yuki Yamanishi, J. Scott Overcash, Elena Giardino, Leslie Boyer, Lien Dang, An Le, Tyler Nguyen, Lien Giang, Peter Sellers, Leyla Tran, Nghi Truong, Maita Vinas, Nicole Hrkman, Sarah Miller, David Nguyen, Ashley Smith, Helen Pu, Steve Li, Thao Vuong, Holly Dioso, Sinikka Green, Kia Lee, Hanh Chu, Michael Waters, Derya J Coskun, Karla A Zepeda, William O'Riordan, Laura Obici, Andrea Cortese, Alessandro Lozza, Giampaolo Merlini, Vittorio Rosti, Mario Sabatelli, Giulia Bisogni, Daniela Bernardo, Marco Luigetti, Andrea Di Paolantonio, Valeria Guglielmino, Angela Romano, Hans Nienhuis, Janita Bulthuis-Kuiper, Olga Gerk, Hannah Ulbricht, Lenka Taylor, Eva Meyle, Natalia Kleinschmidt, David Meyrath, Simone Noe-Schwenn, Ulrike Meng, Ralf Bauer, Fabian aus dem Siepen, Selina Hein, Tetsuya Takahashi, Tomohiko Oshita, Yoko Koujin, Shuichiro Neshige, Tomohisa Nezu, Akiko Segawa, Hiroki Ueno, Hiroyuki Morino, Josep M Campistol, Lida Maria Rodas Marin, Josep Miquel Blasco Pelicano, Lucía Galán Dávila, Marta Palacios, Vanesa Pytel Cordoba, Antonio Guerrero Sola, Alejandro Horga, Julián García Feijoo, Leopoldo Perez de Isla, Wilson Marques Júnior, Mariana Moscardini, Debora Cristina Litcanov, Ana Flavia Viera Lima, Leonardo Rodrigues, Barbara Marques Coutinho, Carolina Lavigne Moreira, Vanessa Daccach Marques, Francisco Munoz Beamud, Álvaro Gragera Martínez, Cristina Borrachero, Eugenia Cisneros Barroso, Adrián Rodríguez Rodríguez, Monica Sanz, Elena Rigo Oliver, Juan González Moreno, Jose M Gamez Martinez, Cristina Descals, Mercedes Uson, Francisco Jose Vega, Antoni Figuerola, Carles Montala, Moises Dias da Silva, Renata Gervais de Santa Rosa, Luiz Felipe Pinto, Marcus Vinicius Pinto, Amanda Cardoso Berensztejn, Fabio Barroso, Andrea Lautre, Lucas G Orellana, Maria Alejandra González-Duarte Briseño, Karla Cárdenas-Soto, Brenda Poled Jiménez López, Sandra Lorena Pérez-Castañeda, Carlos Gerardo Cantú Brito, David Rivera de la Parra, Jose Pablo Hernandez Reyes, Maria del Mar Saniger Alba, Elia Criollo Mora, Yesim Parman, Kus Jülide Rezzan, Erdi Sahin, Nail G Serbest, Hacer Durmus, Arman Cakar, Nuriye Ilknur Tugal Tutkun, Sacit Karamursel, Ali Elitok, Nermin G Sirin Inan, Emre Altinkurt, Jing Ye, Adriane C Allen, Vinay Chaudhry, Raquel Jarrett, Neil Bressler, Kathleen L Burks, Qingfeng Liu, Mohammad Khoshnoodi, Daniel P Judge, Geno Vista, Syed Mahmood Shah, Hirotoshi Hamaguchi, Junko Oda, Emi Fukase, Ikuko Taniguchi, Tetsuya Oda, Hironobu Endo, Masahiro Shimomura, Kimitaka Katanazaka, Shusuke Koto, Takahiro Nakano, Christof Scheid, Andreas Zueiter, Lars Pester, Doreen Walter, Betül Özdemir, Lukas F Frenzel, Udo Holtick, Jeeyoung Oh, Hee Jin Kim, Hyun Jin Shin, Kyomin Choi, Taro Yamashita, Teruaki Masuda, Yohei Misumi, Akihiko Ueda, Keiichi Nakahara, Akiko Yorita, Seiko Tsuruhisa, Takayuki Taniwaki, Masaya Harada, Taiga Moritaka, Naonori Sakurada, Elizabeth A Mauricio, Amber Baskin, Elliot Dimberg, Amie Fonder, Miriam Hobbs, Stephen J Russell, Peter Dyck, Wilson Gonsalves, Nelson Leung, Thomas E Witzig, Steven R Zeldenrust, Lisa Hwa, Prashant Kapoor, Shaji K Kumar, Yi Lin, John A Lust, Vincent S Rajkumar, David Dingli, Morie A Gertz, Ronald Go, Suzanne R Hayman, Samir Dalia, Esmeralda Carrillo, Peter Gorevic, Garnette Mason, Chi-Chao Chao, Ming-Jen Lee, Jen-Jen Su, Sung-Tsang Hsieh, Li-Kai Tsai, Shin-Joe Yeh, Chih-Chao Yang, Senda Ajroud-Driss Ajroud-Driss, Patricia Casey, Benjamin C Joslin, Miriam Freimer, Alison Sankey, Amanda Kenepp, Sarah Heintzman, Samantha LoRusso, Youichi Hokezu, Byoung-Joon Kim, JuHyeon Kim, Ga Yeon Lee, Eun Bin Cho, Eun-Seok Jeon, Ju-Hong Min, Jin Myoung Seok, Hye Lim Lee, Jae Hong Park, Yoshiki Sekijima, Chinatsu Miyazawa, Nagaaki Kato, Dai Kishida, Akiyo Hineno, Minori Kodaira, Tsuneaki Yoshinaga, Teruyoshi Miyahara, Akira Imai, Kazuhiko Matsumoto, Kon-Ping Lin, Yi-Chung Lee, Malin Falk, Bjorn Pilebro, Ole Suhr, Per Lindqvist, Karin Soderberg, Fatima Pedrosa-Domellöf, Intissar Anan, Erik Nordh, Ivaylo Tournev, Sashka Zhelyazkova-Glaveeva, Zheyna Cherneva, Staiko Sarafov, Teodora Chamova, Sylvia Cherninkova-Gopina, Frauke Friebel, Andree Zibert, Natasa Mihailovic, Friederike Schubert, Elena Vorona, Larissa Lahme, Anna Huesing-Kabar, Matthias Schilling, Iyad Kabar, Ana Martinez-Naharro, Liza Chacko, Oliver Cohen, Steven Law, Tamer Rezk, Helen J Lachmann, Brianna Blume, Stacy Dixon, Soon Chai Low, Soo Looi Chan, He Eng Li Lim, Khean Jin Goh, Deborah Kraus, Kristin Jack, N. Kevin Wade, Glenn Lopate, Brittany Zwijack, Julaine Florence, R. Brian Sommerville, Graeme Stewart, Julie Ryder, Linda Mekhael, Mark Taylor, Daniel Suan, Karen Wells, Paula Stone, Amenze Itoya, Mercy Owusu-Sekyere, Desmond Thai, Ilonah Chahine, Salve Pedrosa, Thi Hoa (Therese) Do

المساهمون: Repositório da Universidade de Lisboa

المصدر: The Lancet Neurology. 20:49-59

مصطلحات موضوعية: Adult, Male, medicine.medical_specialty, Drug-Related Side Effects and Adverse Reactions, 030204 cardiovascular system & hematology, Placebo, Severity of Illness Index, Polyneuropathies, 03 medical and health sciences, 0302 clinical medicine, Quality of life, Internal medicine, Outcome Assessment, Health Care, Severity of illness, medicine, Humans, Prealbumin, RNA, Small Interfering, Infusions, Intravenous, Adverse effect, Aged, Amyloid Neuropathies, Familial, business.industry, Middle Aged, medicine.disease, Interim analysis, amyloidosis, transthyretin, polyneuropathy, patisiran, OLE study, Clinical trial, Female, Neurology (clinical), business, Polyneuropathy, 030217 neurology & neurosurgery, Progressive disease

الوصف: © 2020 Elsevier Ltd. All rights reserved.
Background: Hereditary transthyretin-mediated amyloidosis is a rare, inherited, progressive disease caused by mutations in the transthyretin (TTR) gene. We assessed the safety and efficacy of long-term treatment with patisiran, an RNA interference therapeutic that inhibits TTR production, in patients with hereditary transthyretin-mediated amyloidosis with polyneuropathy. Methods: This multicentre, open-label extension (OLE) trial enrolled patients at 43 hospitals or clinical centres in 19 countries as of Sept 24, 2018. Patients were eligible if they had completed the phase 3 APOLLO or phase 2 OLE parent studies and tolerated the study drug. Eligible patients from APOLLO (patisiran and placebo groups) and the phase 2 OLE (patisiran group) studies enrolled in this global OLE trial and received patisiran 0·3 mg/kg by intravenous infusion every 3 weeks with plans to continue to do so for up to 5 years. Efficacy assessments included measures of polyneuropathy (modified Neuropathy Impairment Score +7 [mNIS+7]), quality of life, autonomic symptoms, nutritional status, disability, ambulation status, motor function, and cardiac stress, with analysis by study groups (APOLLO-placebo, APOLLO-patisiran, phase 2 OLE patisiran) based on allocation in the parent trial. The global OLE is ongoing with no new enrolment, and current findings are based on the interim analysis of the patients who had completed 12-month efficacy assessments as of the data cutoff. Safety analyses included all patients who received one or more dose of patisiran up to the data cutoff. This study is registered with ClinicalTrials.gov, NCT02510261. Findings: Between July 13, 2015, and Aug 21, 2017, of 212 eligible patients, 211 were enrolled: 137 patients from the APOLLO-patisiran group, 49 from the APOLLO-placebo group, and 25 from the phase 2 OLE patisiran group. At the data cutoff on Sept 24, 2018, 126 (92%) of 137 patients from the APOLLO-patisiran group, 38 (78%) of 49 from the APOLLO-placebo group, and 25 (100%) of 25 from the phase 2 OLE patisiran group had completed 12-month assessments. At 12 months, improvements in mNIS+7 with patisiran were sustained from parent study baseline with treatment in the global OLE (APOLLO-patisiran mean change -4·0, 95 % CI -7·7 to -0·3; phase 2 OLE patisiran -4·7, -11·9 to 2·4). Mean mNIS+7 score improved from global OLE enrolment in the APOLLO-placebo group (mean change from global OLE enrolment -1·4, 95% CI -6·2 to 3·5). Overall, 204 (97%) of 211 patients reported adverse events, 82 (39%) reported serious adverse events, and there were 23 (11%) deaths. Serious adverse events were more frequent in the APOLLO-placebo group (28 [57%] of 49) than in the APOLLO-patisiran (48 [35%] of 137) or phase 2 OLE patisiran (six [24%] of 25) groups. The most common treatment-related adverse event was mild or moderate infusion-related reactions. The frequency of deaths in the global OLE was higher in the APOLLO-placebo group (13 [27%] of 49), who had a higher disease burden than the APOLLO-patisiran (ten [7%] of 137) and phase 2 OLE patisiran (0 of 25) groups. Interpretation: In this interim 12-month analysis of the ongoing global OLE study, patisiran appeared to maintain efficacy with an acceptable safety profile in patients with hereditary transthyretin-mediated amyloidosis with polyneuropathy. Continued long-term follow-up will be important for the overall assessment of safety and efficacy with patisiran.

وصف الملف: application/pdf

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce6a19ce91101df4f11e95eb6d009161Test
https://doi.org/10.1016/s1474-4422Test(20)30368-9

المؤلفون: Feza Deymeer, Hacer Durmus, Elif Kocasoy Orhan, Nermin Gorkem Sirin, Mehmet Baris Baslo, Elif Oğuz Akarsu

المصدر: Volume: 83, Issue: 3 197-203
Journal of Istanbul Faculty of Medicine

مصطلحات موضوعية: medicine.medical_specialty, Contraction (grammar), Resting state fMRI, business.industry, Neuromuscular transmission, Stimulation, Isometric exercise, medicine.disease, Myasthenia gravis, Health Care Sciences and Services, Internal medicine, Facilitation, Cardiology, Medicine, Repetitive nerve stimulation, Sağlık Bilimleri ve Hizmetleri, business

الوصف: Objective: To investigate the effect of voluntary contraction at low frequency repetitive nerve stimulation (RNS) as a sign of presynaptic compensation in patients with Myasthenia Gravis (MG). Material and Method: Thirty-five patients with MG were included. RNS at 3 Hz, recorded from the abductor digiti minimi, trapezius, nasalis, and orbicularis oculi muscles were performed. In muscles with more than 10% decrement, RNS at 1 Hz with 20-90 stimuli was applied after 10-second maximal isometric voluntary muscle contraction (MIVMC). Progressive decremental pattern was considered when decrement values were increasing until the last response. Facilitation after MIVMC was determined by dividing the amplitude of motor response in resting state by the amplitude of the motor response recorded just after contraction. Results: Among 15 patients having RNS at 1 Hz, nine had facilitation after MIVMC. In the muscle with facilitation, there was a significant positive correlation between the increment ratio and the progressive decrement difference between responses 1-4 and 1-9 (correlation coefficient 0.730, p=0.026). Although not statistically significant, muscles showing facilitation following decrement tended to have a progressive decremental pattern. Conclusion: During RNS, facilitation after MIVMC followed by progressive decremental pattern may be related to presynaptic compensation of neuromuscular transmission failure in MG.
Amaç: Bu çalışmada, Myasthenia Gravis (MG) hastalarında presinaptik kompansasyonun bir göstergesi olarak maksimal istemli kası sonrasında ardışık sinir uyarım testinde (ASU) değişikliklerin incelenmesi amaçlandı. Gereç ve Yöntem: Otuz beş MG hastası çalışmaya dahil edildi. Bu hastalara abdüktör digiti minimi, trapez, nazalis ve orbikülaris okuli olmak üzere 4 kastan 3 Hz ASU incelemesi yapıldı. Dekrement oranı %10 üzerinde olan kaslarda 10 saniye izometrik maksimal kası sonrasında 1 Hz ASU incelemesi tekrarlandı. Bu kaslarda kası sonrası fasilitasyon ve progresif dekrement paterni varlığı değerlendirildi. Progresif dekrement paterni, ASU incelemesinde dekrement oranının son uyarıya kadar artması olarak belirlendi. Progresif dekrement farkı ise 1-4 ve 1-9 ile 1-4 ve 1-son uyarı ile kaydedilen dekrement değerlerinin birbirinden çıkartılması ile hesaplandı. Fasilitasyon ise kası sonrası ve istirahatte kaydedilen motor yanıt amplitüdlerinin birbirine oranlanması ile belirlendi. Bulgular: İstemli kası sonrası 1 Hz ASU yapılan 15 hastanın 9’unda fasilitasyon saptandı. Fasilitasyon izlenen kaslarda inkrement oranı ile progresif dekremet farkı (1-4 ve 1-9 uyarı arası) istatistiksel olarak anlamlı pozitif bir korelasyon gösterdi (korelasyon katsayısı 0,730; p=0,026). İstatistiksel olarak anlamlı olmamakla birlikte ilk 9 uyarıda progresif dekrement paterni varlığı dekrementi takiben fasilitasyon izlenen kaslarda daha fazlaydı. Sonuç: İzometrik kası sonrasında düşük frekanslı ASU incelemesi MG hastalarında presinaptik kompansasyonu gösterebilir.

وصف الملف: application/pdf

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b8fa63e7e15443688eb7e68a5f72fd1eTest
https://doi.org/10.26650/iuitfd.2019.0096Test

المؤلفون: Hülya Kayserili, Haluk Topaloglu, Ayaz Aghayev, Zehra Oya Uyguner, Sahin Avci, Hacer Durmus, Zuhal Yapici, Pinar Tekturk, Seher Başaran, Yesim Parman, Umut Altunoglu, Piraye Oflazer-Serdaroglu, B Sevinc Rustemoglu, Gulendam Bagirova, Feza Deymeer, Güven Toksoy, Birsen Karaman

المصدر: Neuromuscular Disorders. 29:601-613

مصطلحات موضوعية: Adult, Male, 0301 basic medicine, Turkey, Duchenne muscular dystrophy, Genetic counseling, In silico, Genetic Counseling, Chromosomal translocation, Biology, Carrier testing, medicine.disease_cause, Cohort Studies, Dystrophin, Young Adult, 03 medical and health sciences, 0302 clinical medicine, medicine, Humans, Multiplex ligation-dependent probe amplification, Child, Genetics (clinical), Genetics, Mutation, High-Throughput Nucleotide Sequencing, Infant, Karyotype, Sequence Analysis, DNA, medicine.disease, Muscular Dystrophy, Duchenne, Phenotype, 030104 developmental biology, Neurology, Child, Preschool, Pediatrics, Perinatology and Child Health, Female, Neurology (clinical), 030217 neurology & neurosurgery

الوصف: We genetically evaluated 260 dystrophinopathy patients from Turkey. Karyotyping as an initial test in female patients, followed stepwise by multiplex ligation-dependent probe amplification and by targeted next-generation sequencing of DMD revealed definitive genetic diagnoses in 214 patients (82%), with gross deletions/duplications in 153 (59%), pathogenic sequence variants in 60 (23%), and X-autosome translocation in one. Seven of the gross and 27 of the sequence variants found novel. In silico prediction, co-segregation and transcript assays supported the pathogenic nature of the novel silent (p.Lys534=) and the splice site (c.4345-12C>G) alterations. From a total of 189 singleton cases, 154 (82%) had pathogenic alterations. From 138 of those who had maternal carrier testing, 68 out of 103 (66%) showed gross and 11 out of 35 (31%) showed small pathogenic variants. This suggests that the de novo occurrences in DMD appear approximately 2.1 times more frequently in meiotic unequal crossing-over than in uncorrected replication errors. Our study also disclosed three mothers as obligate gonadal mosaic carriers. Family-based investigation of dystrophinopathy patients is crucial for the ascertainment of novel or rare variants and also for counseling and follow-up care of the families.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::190147c364cb01ee776840e7569ad457Test
https://doi.org/10.1016/j.nmd.2019.03.012Test

المؤلفون: Mefkure Eraksoy, Onder Us, Sibel Ertan, Hacer Durmus, Filiz Koç, Nazan Saner, Şeyma Tekgül, Pinar Tekturk, Cemile Kocoglu, Gençer Genç, Robin Palvadeau, Feza Deymeer, Güneş Kızıltan, Ece Kartal, Hulya Apaydin, Sevda Erer Özbek, Cenk Akbostanci, Suna Lahut, Yesim Parman, Erdi Şahin, Dilcan Kotan, Hülya Tireli, Murat Gultekin, Zeynep Özözen Ayas, Ersin Tan, Sibel Özekmekçi, Irmak Şahbaz, Hamit Acer, Zeynep Tufekcioglu, Dilek Ince Gunal, Hasmet Hanagasi, İhsan Şükrü Şengün, Arman Çakar, Esen Saka Topcuoglu, Gülşah Şimşir, Gülden Akdal, Elif Bayraktar, Fulya Akçimen, Ayşe Bora Tokçaer, Aysegul Gunduz, Uluç Yiş, Gul Serdaroglu, Atay Vural, Ayse Altintas, Hüseyin A. Şahin, Özgür Ömür, Tuğçe Gül, Gül Demet Kaya Özçora, Müge Kovancılar Koç, Vildan Yayla, Aksel Siva, Semra Hiz, Meral Topçu, Piraye Oflazer, Başar Bilgiç, M. Osman Çorbalı, Semiha Kurt, Elçin Bora, Nesli E. Şen, Kadriye Agan, A. Nazli Basak, Halil Güllüoğlu, Ceren Tunca, Sefer Kumandaş, Muhsin Elmas, Özgür Öztop Çakmak, Bulent Elibol, Aysun Soysal, Zeynep E. Kaya Gulec, Caroline Pirkevi Çetinkaya, Dürdane Aksoy, Aslı Gündoğdu Eken

المساهمون: Ege Üniversitesi, Elmas, Muhsin

مصطلحات موضوعية: 0301 basic medicine, Proband, congenital, hereditary, and neonatal diseases and abnormalities, Ataxia, Turkey, Consanguinity, 03 medical and health sciences, symbols.namesake, Wholeexome sequencing, 0302 clinical medicine, medicine, Genetics, Humans, Spinocerebellar Ataxias, genetics, Exome sequencing, Spinocerebellar Degenerations, Sanger sequencing, biology, ataxia, medicine.disease, Optic Atrophy, 030104 developmental biology, Neurology, Muscle Spasticity, whole‐, Spinocerebellar ataxia, symbols, Frataxin, biology.protein, Neurology (clinical), medicine.symptom, Heterogeneity, heterogeneity, Trinucleotide repeat expansion, exome sequencing, 030217 neurology & neurosurgery

الوصف: Background The genetic and epidemiological features of hereditary ataxias have been reported in several populations; however, Turkey is still unexplored. Due to high consanguinity, recessive ataxias are more common in Turkey than in Western European populations. Objective To identify the prevalence and genetic structure of hereditary ataxias in the Turkish population. Methods Our cohort consisted of 1296 index cases and 324 affected family members. Polymerase chain reaction followed by Sanger sequencing or fragment analysis were performed to screen for the trinucleotide repeat expansions in families with a dominant inheritance pattern, as well as in sporadic cases. The expansion in the frataxin (FXN) gene was tested in all autosomal recessive cases and in sporadic cases with a compatible phenotype. Whole-exome sequencing was applied to 251 probands, selected based on the family history, age of onset, and phenotype. Results Mutations in known ataxia genes were identified in 30% of 1296 probands. Friedreich's ataxia was found to be the most common recessive ataxia in Turkey, followed by autosomal recessive spastic ataxia of Charlevoix-Saguenay. Spinocerebellar ataxia types 2 and 1 were the most common dominant ataxias. Whole-exome sequencing was performed in 251 probands with an approximate diagnostic yield of 50%. Forty-eight novel variants were found in a plethora of genes, suggesting a high heterogeneity. Variants of unknown significance were discussed in light of clinical data. Conclusion With the large sample size recruited across the country, we consider that our results provide an accurate picture of the frequency of hereditary ataxias in Turkey. (c) 2021 International Parkinson and Movement Disorder Society
Suna and Inan Kirac Foundation; Koc UniversityKoc University; Bogazici UniversityBogazici University
This work was supported by funds from Suna and Inan Kirac Foundation, Koc University, Bogazici University.

وصف الملف: application/pdf

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7bd268a54a7c084aa9507fb520b75a7dTest
https://avesis.gazi.edu.tr/publication/details/dc537293-2ef2-4fdc-932d-c75876075839/oaiTest

المؤلفون: Mehmet Baris Baslo, Elif Kocasoy Orhan, Hacer Durmus, Feza Deymeer, Nermin Gorkem Sirin

المصدر: Neurophysiologie Clinique. 48:261-267

مصطلحات موضوعية: Adult, Male, 0301 basic medicine, Weakness, Needle electrode, Facial Muscles, Newly diagnosed, Generalized weakness, Concentric, Young Adult, 03 medical and health sciences, 0302 clinical medicine, Physiology (medical), Myasthenia Gravis, otorhinolaryngologic diseases, medicine, Humans, Repetitive nerve stimulation, Muscle, Skeletal, Electrodes, Aged, Jitter, Neurologic Examination, Electromyography, business.industry, General Medicine, Middle Aged, medicine.disease, Electric Stimulation, Myasthenia gravis, 030104 developmental biology, Neurology, Needles, Anesthesia, Female, Neurology (clinical), medicine.symptom, business, 030217 neurology & neurosurgery

الوصف: Summary Introduction The aim of this study was to define the diagnostic accuracy of concentric needle (CN)-jitter in newly diagnosed myasthenia gravis (MG) patients and to compare CN-jitter with repetitive nerve stimulation. Methods In 30 MG patients, repetitive nerve stimulation in 4 muscles (orbicularis oculi, nasalis, trapezius and abductor digiti minimi) and CN-jitter of extensor digitorum (ED) and frontalis muscles were evaluated. Results Twenty-eight of 30 patients (93%) had high jitter in at least one muscle. Repetitive nerve stimulation was abnormal in 23 of the patients (77%). Eighty-six percent of the patients in whom repetitive nerve stimulation test was negative could be diagnosed with CN-jitter. The most frequent muscle showing abnormal decrement was orbicularis oculi. The results of CN-jitter were similar between patients with different serological groups. Of 13 patients with generalized weakness, all had high jitter in both muscles studied whereas of 17 patients only with ocular weakness, 15 had high jitter in at least one muscle studied. Conclusion Abnormal RNS was present in 77% of newly diagnosed MG patients, being less than CN-jitter (93%) but more than antibody positivity (73.3%).

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb77037b631f07801a79c8c2a72ebe06Test
https://doi.org/10.1016/j.neucli.2018.01.003Test

المؤلفون: Hacer Durmus, Dilcan Kotan, Yesim Parman, Feza Deymeer, Murat Mert Atmaca, Piraye Oflazer, Arman Çakar

المصدر: Noro Psikiyatr Ars

مصطلحات موضوعية: musculoskeletal diseases, medicine.medical_specialty, biology, business.industry, General Neuroscience, Amyloidosis, Lumbar spinal stenosis, Case Report, medicine.disease, Psychiatry and Mental health, Transthyretin, medicine, biology.protein, Radiology, Presentation (obstetrics), business

الوصف: Hereditary transthyretin amyloidosis (hATTR) is caused by the mutations of the transthyretin (TTR) gene. Length dependent sensory-motor neuropathy with autonomic involvement is the hallmark of the disease. However, it can manifest with unusual phenotypes. A 53-year-old man presented with progressive weakness in lower limbs and operated for lumbar spinal stenosis. The progression of weakness restarted after two years with the addition of symptoms related to polyneuropathy. Electrodiagnostic studies revealed sensorimotor polyneuropathy with autonomic involvement. Sural nerve biopsy disclosed amyloid deposits. Genetic testing of TTR gene identified Glu89Gln mutation. Two years after the diagnosis, he had another decompressive surgery for lumbar spinal stenosis. Histopathological examination of ligamentum flavum specimens revealed amyloid deposits. During the follow up, he was diagnosed with laryngeal amyloidosis, which is an unusual manifestation. Seven years after the diagnosis, he died due to cardiac complications. Our patient suggested that hATTR with Glu89Gln may present with atypical symptoms. Clinicians should carefully look for hATTR in recurrent lumbar stenosis.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa39cf4a3e8d540d0391ea11a4cc4018Test
https://europepmc.org/articles/PMC8895807Test/