Research done in a transgenic rat model for AD using a special formulation/encapsulation of lithium demonstrated improved cognitive abilities and decreases in amyloid beta.
Summary:
In a new study, a team of researchers has shown that, when given in a formulation that facilitates passage to the brain, lithium in doses up to 400 times lower than what is currently being prescribed for mood disorders is capable of both halting signs of advanced Alzheimer's pathology and of recovering lost cognitive abilities.
... Moving forward
Dr. Cuello sees two avenues to build further on these most recent findings. The first involves investigating combination therapies using this lithium formulation in concert with other interesting drug candidates. To that end he is pursuing opportunities working with Dr. Sonia Do Carmo, the Charles E. Frosst-Merck Research Associate in his lab.
He also believes that there is an excellent opportunity to launch initial clinical trials of this formulation with populations with detectable preclinical Alzheimer's pathology or with populations genetically predisposed to Alzheimer's, such as adult individuals with Down Syndrome. While many pharmaceutical companies have moved away from these types of trials, Dr. Cuello is hopeful of finding industrial or financial partners to make this happen, and, ultimately, provide a glimmer of hope for an effective treatment for those suffering from Alzheimer's disease.
The paywalled paper is: https://content.iospress.com/articles/j ... /jad190862 Edward N. Wilson, Sonia Do Carmo, Lindsay A. Welikovitch, Hélène Hall, Lisi Flores Aguilar, Morgan K. Foret, M. Florencia Iulita, Dan Tong Jia, Adam R. Marks, Simon Allard, Joshua T. Emmerson, Adriana Ducatenzeiler, A. Claudio Cuello. NP03, a Microdose Lithium Formulation, Blunts Early Amyloid Post-Plaque Neuropathology in McGill-R-Thy1-APP Alzheimer-Like Transgenic Rats.
Journal of Alzheimer's Disease, 2020; 73 (2): 723
DOI: 10.3233/JAD-190862
Abstract
... [In a previous study] The novel microdose lithium formulation, NP03, has disease-modifying effects in the McGill-R-Thy1-APP transgenic rat model of AD-like amyloidosis at pre-plaque stages, before frank amyloid-β (Aβ) plaque deposition, during which Aβ is primarily intraneuronal. [In this study] we are interested in determining whether the positive effects of microdose lithium extend into early Aβ post-plaque stages. ... During the early Aβ post-plaque stage, we find that NP03 rescues functional deficits in object recognition, reduces loss of cholinergic boutons in the hippocampus, reduces levels of soluble and insoluble cortical Aβ42 and reduces hippocampal Aβ plaque number. In addition, NP03 reduces markers of neuroinflammation and cellular oxidative stress. Together these results indicate that microdose lithium NP03 is effective at later stages of amyloid pathology, after appearance of Aβ plaques.
BrianR wrote:Research done in a transgenic rat model for AD using a special formulation/encapsulation of lithium demonstrated improved cognitive abilities and decreases in amyloid beta.
While many pharmaceutical companies have moved away from these types of trials, Dr. Cuello is hopeful of finding industrial or financial partners to make this happen...
In fact, there are some clinical trials using lithium for people with MCI and/or AD. Here's what an "advanced search of the NIH's Clinical Trials website https://clinicaltrials.gov/ct2/search/advanced using the terms Alzheimer's and Lithium turned up: Alzheimer's and Lithium clinical trials
Here's an example of what seems to be a small, but carefully designed trial run by the University of Pittsburgh and currently recruiting people with MCI:
In contrast to previous studies, we will implement an Randomized Controlled Trial (RCT) with a more integrative, comprehensive approach than done before involving state-of-the-art ultra-high field (7T) human Magnetic Resonance Imaging (MRI), neurocognitive assessment, and blood- and Cerebrospinal Fluid (CSF)- based biomarker measurement to investigate the role of lithium as an anti-dementia agent. The specific aim of this pilot-feasibility study is to examine the potential disease modifying properties of lithium in individuals with mild cognitive impairment (MCI) in delaying conversion to dementia. The study will enroll and randomly assign 80 individuals 60 years and older with MCI to take lithium, titrated to a maximally tolerated blood level (0.5 to 0.8 meq/L), or placebo for two years...The following hypotheses will be tested: H1: a) Participants randomized to take lithium for two years, compared to placebo, will better maintain cognitive function, primarily in memory, which b) will be associated with changes in biomarkers (e.g., GSK-3β, BDNF). H2: a) Participants randomized to take lithium, compared to placebo, will have larger hippocampal volumes and lower total gray matter thinning, which b) will be associated with changes in biomarkers and c) better cognitive function, primarily in memory...
