Movement disorders are not commonly associated with stroke. Accordingly, thalamic strokes have rarely been associated with tremor, pseudo-athetosis and dystonic postures. We present a 75-year-old man who developed a disabling tremor 1 year after a posterolateral thalamic stroke. This tremor had low frequency (3-4 Hz), did not disappear on focus and was exacerbated by maintaining a static posture and on target pursuit, which made it very difficult to perform basic functions. MRI demonstrated an old ischemic lesion at the left posterolateral thalamus. Treatment with levodopa led to symptom control. Lesions in the midbrain, cerebellum and thalamus may cause Holmes' tremor. Delayed onset of symptoms is usually seen, sometimes appearing 2 years after the original injury. This may be due to maturation of a complex neuronal network, leading to slow dopaminergic denervation. Further studies are needed to improve our understanding of this unique disconnection syndrome.
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http://dx.doi.org/10.1016/j.jocn.2015.09.014 | DOI Listing |
Cureus
December 2024
Internal Medicine, Leicester Royal Infirmary, Leicester, GBR.
Miller-Fisher syndrome (MFS) is characterized by the three major components of ophthalmoplegia, ataxia, and areflexia. The occurrence of MFS is relatively uncommon because of its monophasic nature, while recurrent Guillain-Barré syndrome (GBS) is a well-known condition. The pharyngeal-cervical-brachial (PCB) variant is a scarce variant of GBS (3%), which presents with muscle weakness initially involving the neck, oropharynx, and upper extremities.
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December 2024
Zanjan University of Medical Sciences, Zanjan, Iran.
Here we presented a rare case of Lafora disease with neuropathy, ataxia and progression of symptoms into type one DM, GTCS and myoclonus during years. We believe that it is important to keep the diagnosis of Lafora disease in mind in every child presenting with myoclonus especially when mental and cerebellar deficits develop as well. Keywords: Drug-resistant seizure, Ataxia, Myoclonic jerky movements, Lafora.
View Article and Find Full Text PDFNeurocase
January 2025
Department of Neurology, Dongguk University College of Medicine, Dongguk University Gyeongju Hospital, Gyeongju, Republic of Korea.
Dentatorubral-Pallidoluysian Atrophy (DRPLA) is a rare autosomal dominant neurodegenerative disorder caused by CAG repeat expansion in the ATN1 gene, characterized by diverse neurological and psychiatric symptoms. We report a 23-year-old patient with juvenile-onset seizures, cognitive decline, and ataxia, progressing to psychosis by age 31. Initial brain MRI showed minimal cerebellar atrophy, with prominent atrophy evident on follow-up imaging.
View Article and Find Full Text PDFJ Med Virol
January 2025
Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, State Key Laboratory of Advanced Medical Materials and Devices, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China.
Multinucleated cells are present in lung tissues of patients infected by SARS-CoV-2. Although the spike protein can cause the fusion of infected cells and ACE2-expressing cells to form syncytia and induce damage, how host cell responses to this damage and the role of DNA damage response (DDR) signals in cell fusion are still unclear. Therefore, we investigated the effect of SARS-CoV-2 spike protein on the fusion of homologous and heterologous cells expressing ACE2 in vitro models, focusing on the protein levels of ATR and ATM, the major kinases responding to DNA damage, and their substrates CHK1 and CHK2.
View Article and Find Full Text PDFMymensingh Med J
January 2025
Dr Muhammad Rezeul Huq, Classified Specialist, Department of Neurology, Combined Military Hospital, Dhaka, Bangladesh; E-mail:
Wernicke's encephalopathy is a potentially lethal complication of thiamine deficiency which mainly occurs in chronic alcoholic patients. It may occur in other conditions like hyperemesis gravidarum too. Pregnancy may also be complicated with other neurological and cardiac complications.
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