Wilson’s disease (WD) is an autosomal recessive disease that presents mainly with hepatic, neurological, and psychiatric manifestations. Neurological manifestations have been described in the past. Nevertheless, the pathophysiology and the clinical relevance of these manifestations have not been described in great detail in the medical literature. We aim to consolidate the knowledge about the neurological manifestations of WD and present the pathophysiology of each neurological manifestation of the disease. We will give a brief definition, the provenance, and the pathophysiology of the neurological conditions. We collected data from the National Library of Medicine (PubMed) using regular keywords and medical subject headings. Studies were selected applying the following inclusion/exclusion criteria: (1) studies that used exclusively human subjects, (2) papers published in English, and (3) papers from 1990 onward. The exclusion criteria were (1) studies that used animals, (2) papers not published in English, and (3) papers published before 1990. Additional studies were included via reference lists of identified papers and related articles featured in PubMed and Google Scholar. Copper toxicity is the principal factor for brain degeneration seen in WD. Parkinsonism seen in WD has been associated with a nigrostriatal dopaminergic deficit. Resting tremor may have the same pathophysiology as parkinsonism. Action tremor is related to an accumulation of copper in the cerebellum's vermis and hemispheres. At the same time, essential tremor can be explained due to affection of the dentate nucleus. Choreoathetosis is produced due to increased activity of the direct pathway. We did not find specifically associated pathophysiology related to dysarthria. We assume that multiple parts of the brain are involved in that problem. Putamen nucleus damage is the leading cause that explains dystonia seen in WD along with the globus palidus. We did not find a specific localization for seizures in WD, but the pathology seems to be related to decreased levels of B6 and direct toxicity of copper on the brain.
Babesiosis is a blood-borne disease found mainly in the United States caused by a parasitic piroplasm. While most infections are mild to moderate in immunocompetent hosts, life-threatening complications can occur in those with significant comorbidities like congestive heart failure (CHF) or chronic obstructive pulmonary disease (COPD). There is sparse literature discussing the complications of Babesia microti infection or the pathophysiology and management thereof. A literature review was conducted to consolidate the current knowledge about the disease, pathophysiology, and proposed management of all potential complications based on risk factors and other clinical information. A MeSH cross-references strategy was employed in PubMed using the search terms "babesia" and "babesiosis" and the established associated conditions, and the search expanded to increase capture. Only papers written in the English language and discussing human subjects in the North American patient population were included. The initial search yielded 315 papers and, after applying the inclusion/exclusion criteria, a final number of 18 was reviewed. The various complications and pathophysiology thereof are then discussed according to organ system. Babesia is a subversive parasite associated with a variety of conditions. We hope a better appreciation of all potential presentations and complications will help clinicians manage this increasingly common zoonosis and reduce adverse effects. More research is recommended into the pathophysiology and prevention of complications following this and other tick-borne illnesses.
Neuroleptic malignant syndrome (NMS), serotonin syndrome (SS), and malignant hyperthermia (MH) share similar clinical characteristics. These conditions can present life-threatening situations due to exposure to different drugs. A similar genetic predisposition is suspected between these syndromes as well. This review aims to consolidate the knowledge about the genetics of these disorders and find possible correlations among them to frame the best possible approaches using different drugs without producing life-threatening complications that can be preventable. As a method, we collected data using PubMed with a Medical Subject Headings (MeSH) strategy. The inclusion criteria were as follows: full papers, studies conducted on humans, papers published in the English language, and study types that included case reports, journal articles, multicenter studies, clinical studies, observational studies, or clinical trials. Studies involving animals, articles that were without a visible abstract, study types that included clinical reviews, systematic reviews, or meta-analyses were excluded. 146 papers were reviewed, and 130 papers were removed for no possible extraction of data, duplication of the data, or the study outcome was not compatible with the objective of this review. Ultimately, a total of 17 papers were used for the discussion of this article. As a result of this review, we found no genetic association between NMS, SS, and MH development. Finally, we conclude that NMS, SS, and MH presentation are caused by different mutations which are not associated. 3 However, because of the life-threatening clinical presentation of these conditions, genetic tests should be suggested in patients with a family history of these disorders before administering any pertinent drug that increases the risk of developing all these syndromes.
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