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Does Metformin Cause Memory Loss

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What Happens If Metformin Stops Working

Does Metformin cause dementia? Surprising answer!

Metformin is an oral medication that can help treat type 2 diabetes in combination with lifestyle changes. If metformin is ineffective or stops working, a doctor may recommend changing the treatment plan. Diabetes is a chronic, progressive disease it can get worse over time if a person does not receive treatment.

Molecular Mechanism Involved In Neuroprotective Effects Of Metformin In Alzheimers Disease

4.1. Metformin Effects on Amyloid and Tau

4.2. Metformin Effects on Mitochondria

4.3. Metformin Effects on Neurogenesis: The AMPK/aPKC/CBP Signaling Pathway

4.4. Metformin Effects on Learning and Memory

4.5. Metformin Effects on Synaptic Density and Dendritic Spines

4.6. Metformin Effects on Neuroinflammation

4.7. Neuroprotective and Neurorestorative Potential of Metformin

What Exactly Does Metformin Do To Your Body

Metformin lowers your blood sugar levels by improving the way your body handles insulin. Its usually prescribed for diabetes when diet and exercise alone have not been enough to control your blood sugar levels. For women with PCOS, metformin lowers insulin and blood sugar levels, and can also stimulate ovulation.

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Effects Of Metformin On The Cerebral Metabolic Changes In Type 2 Diabetic Patients

Nan-Tsing Chiu

1Department of Nuclear Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, 123 Dapi Road, Niaosong District, Kaohsiung 833, Taiwan

2Department of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, 123 Dapi Road, Niaosong District, Kaohsiung 833, Taiwan

3Department of Computer Science and Information Engineering, 700 Kaohsiung University Road, Nanzih District, Kaohsiung 811, Taiwan

4Department of Neurology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, 123 Dapi Road, Niaosong District, Kaohsiung 833, Taiwan

5Division of Endocrinology and Metabolism, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, 123 Dapi Road, Niaosong District, Kaohsiung 833, Taiwan

6Department of Nuclear Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, 138 Shengli Road, Tainan 70428, Taiwan

Abstract

1. Introduction

Based on these studies, we hypothesized that metformin causes cerebral metabolic changes in type 2 diabetic patients. Because a lack of human data about metforminâs effects on cerebral metabolism, we used 2-deoxy-2-fluoro-D-glucose positron emission tomography to scan patients with type 2 diabetes and then analyzed the scans using statistical parametric mapping .

2. Materials and Methods

2.1. Patients
2.2. FDG PET

How Harmful Might Metformin Be To The Brain

Does metformin cause weight loss, Metformin and hair loss ...

As reported by Medscape Medical News, Yi-Chun Kuan and team conducted a cohort study to follow a total 9,300 patients with type 2 diabetes in Taiwan for up to 12 years. They checked records for these patients from the National Health research database of Taiwan including 4,651 who had metformin prescriptions and 4651 matched controls who didnt take any metformin.

Dr. Kuan told Medscape they adjusted for age, sex, and diabetes severity and that despite this, the cumulative incidences of Parkinsons and dementia were significantly higher for our metformin cohort at 12 years.

In fact, the risk for Parkinsons disease or Alzheimers dementia went up over 50 percent during a 12 year period in those who took metformin when compared to those who did not. Researchers also found that outcome risks increased progressively with higher dosage and longer duration of treatment.

Dr. Yi-Chun Kuan said, Wed heard about a possible protective effect from metformin. However, we found the reverse, and she added that large-scale, prospective studies would need to be done in other countries to get clarification of the results.

Another detail the researchers noted was that outcomes increased the longer a patient was on metformin and the higher the metformin dose they took, especially with use for more than 300 days and doses greater than 240 g.

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What Is The Outlook

Once your doctor has determined the cause of your memory loss, theyll work with you to create your treatment plan. This may include lifestyle changes if youre at risk for or have already been diagnosed with type 2 diabetes.

If AD causes your memory loss, your doctor may recommend cholinesterase inhibitors to start. These inhibitors tend to delay the worsening of symptoms and can improve functionality in people with dementia. Depending on how the disease is progressing, they may prescribe additional medication.

Can Metformin Cause Memory Problems

The research is unclear at this time if metformin can cause memory problems, so there isnt a definitive answer. However, many doctors still recommend metformin as a first-line treatment for Type II diabetes.

What may be causing memory problems for those taking metformin is not the medication itself, but the underlying illness: diabetes. The mental health effects of diabetes can range from mild cognitive impairment to severe. In fact, a 2011 clinical study illustrated a risk factor between Type 2 diabetes mellitus and dementia, stating that type 2 diabetes increases the risk of dementia more than two-fold.

Another study from 2017 made a connection between insulin resistancea trait of diabetesand long-term cognitive decline.

The bottom line is that more research is required to get conclusive answers on how metformin contributes to memory problems, however, the underlying condition that metformin treatstype 2 diabetescertainly can lead to decreased cognitive function and memory issues.

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Drug Exposures And Memory Outcomes

Medication use within 2 weeks of each visit was identified from a structured medication inventory. Participants, or co-participants if appropriate, were asked to bring to the study visit or report all prescription medications used currently or within the past 2 weeks, and the form was completed by trained ADC staff physicians. The drug classes of interest included metformin, sulfonylureas, thiazolidinediones, and DPP4 inhibitors. Less frequent hypoglycemic medications in the database, including sodium-glucose transport protein 2 inhibitors, acarbose, meglitinide, and miglitol, were classified as the use of an âotherâ oral hypoglycemic medication, which was included as a covariate in the analysis. Use of an injectable incretin mimetic and use of insulin were extracted and included as covariates.

The primary outcome of interest was delayed recall assessed using the Wechsler Memory Scale RevisedâLogical Memory test IIA because delayed recall was the most sensitive and specific domain available related to AD. Performance on immediate recall was also considered a secondary outcome . Because the two tests were expected to differ in their psychometric properties , they were considered separately. The delayed recall trials occurred after a 20-minute delay.

Repurposing Metformin To Treat Age

Can diabetes cause you memory loss?

Aging-related CNS disorders have complex pathophysiology with few or no treatments.

Studies show that, metformin, an anti-diabetic drug, has neuroprotective action.

Consideration of dose, duration and timing of treatment is important for metformin use.

Metformin has the cerebroprotective potential for ischemic stroke.

Metformin is a suitable candidate for repurposing in aging-related CNS disorders.

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Metformin: Mechanism Of Action In Neurodegenerative Diseases

The in vivo studies conducted so far, regarding the effect of metformin have generated conflicting results. Besides the large differences in study design, these outcomes are probably also due to the many biological pathways influenced by metformin. Here we will discuss some of the biological signaling pathways and biological mechanisms that are the most relevant for metformin’s potential as a therapy in neurodegenerative disease .

Figure 2. Metformin’s potential as a neuroprotective agent. Metformin can counteract protein hyperphosphorylation, oxidative stress and neuroinflammation, processes known to drive neurodegeneration. Metformin can act on neurons, but also targets astrocytes and microglia. Consequently, metformin can influence inflammatory status, along with glucose metabolism in the entire brain and thereby reduce neuroinflammation and act as an antioxidant, leading to protein dephosphorylation. PPP, Pentose phosphate pathway.

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Researchers found that participants with diabetes performed worse on cognitive performance than those who did not have diabetes, with individuals taking a metformin drug performing significantly worse.

More than 1,300 patients were evaluated who had Alzheimers disease, mildly impaired brain function and no cognitive impairments along with a subset group which also had type 2 diabetes or impaired glucose intolerance. Patients who suffered a stroke or had neurodegenerative diseases other than Alzheimers were not included in the study.

Patients with type 2 diabetes performed poorly on cognitive impairment tests and those who took metformin performed even worse.

Researchers found metformin was associated with a vitamin B12 deficiency, which in turn resulted in impaired cognitive performance. Patients with vitamin B12 levels less than 250 pmol/L had the worst cognitive performance.

Conversely, patients with type 2 diabetes taking metformin, but who also took calcium or vitamin B12 supplements had better cognitive outcomes.

Eileen Moore, PhD, and her team of researchers from the University of Melbourne in Australia used a mini-mental state exam to determine cognitive performance in patients. The average patients age was 73 years old, with approximately 60% being female.

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The Therapeutic Potential Of Metformin: Feasibility

There are several reasons why the use of metformin to treat neurodegeneration could bring about doubt from clinicians and scientists when considering its potential as a therapy or as a research tool. The main point being that metformin seems to be acting on a plethora of biological pathways, and therefore it is very difficult to pin down mechanisms. The second point is the controversial subject of anti-aging drugs in general. Since we know very little about the biological underpinnings of aging and know even less about how to efficiently model it in the laboratory, the promotion of an anti-aging drug often conjures up more questions than it answers. Then there are several other sticking points among researchers, one being the fact that metformin acts by inhibiting mitochondrial respiration, the exact effect that has been shown by years of research in the Parkinson’s disease field to in fact contribute development of disease.

In direct contrast, there are several arguments for metformin being a feasible and useful drug. Firstly, glucose metabolism is of central importance to neuronal redox status, therefore to the long-term survival of neurons. Secondly, as a population we are increasingly insulin resistant and therefore metformin is particularly apt. Metformin is a cheap and safe drug with few side effects and therefore more work in vitro, in vivo and in trials will be welcomed.

Diabetes Drug Metformin May Protect The Aging Brain

Metformin Side Effects

HealthDay Reporter

WEDNESDAY, Sept. 23, 2020 — A common type 2 diabetes drug called metformin may have an unexpected, but positive, side effect: New research suggests that people taking the drug appear to have significantly slower declines in thinking and memory as they age.

“Our six-year study of older Australians with type 2 diabetes has uncovered a link between metformin use and slower cognitive decline and lower dementia rates,” said study author Dr. Katherine Samaras. She’s the leader of the healthy aging research theme at the Garvan Institute of Medical Research in New South Wales, Australia.

“The findings provide new hope for a means of reducing the risk of dementia in individuals with type 2 diabetes, and potentially those without diabetes,” Samaras said.

Metformin helps the body use the hormone insulin more effectively. It’s known as an insulin sensitizer. Insulin helps usher sugar into the body’s cells to be used as fuel. People with type 2 diabetes don’t use insulin effectively. This is called insulin resistance.

“Metformin is an insulin-sensitizing medication. However, it has a number of other effects in cells which allow them to remain metabolically healthy,” Samaras explained.

The study followed more than 1,000 people, aged 70 to 90, for six years. At the start of the study, all of the volunteers were living at home and had no signs of dementia. They underwent a series of neuropsychological tests every two years.

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Diabetes Care

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Metformin And Pd: Animal Studies

Only a handful of rodent studies have so far assessed the effects of metformin as a neuroprotective agent in PD. These studies have focused mainly on metformin treatment in combination with acute MPTP induced parkinsonism. Although experimental designs in these studies are quite similar, the results are variable, arguing against differences in modeling as the major cause of metformin’s variable effects. However, differences in the dose and duration of MPTP and metformin treatments may be important .

Most studies in rodents find that metformin reduces the damaging effect of MPTP on dopaminergic neurons, shown by tyrosine hydroxylase staining in the substantia nigra pars compacta , striatum , or both . Two studies suggest that metformin’s protective effect may not be specific. A study by Ismaiel and colleagues however, reported that metformin had no protective effect against MPTP-induced neuronal loss in the SN and Bayliss reported no protective effect on dopaminergic neurons in the SN, only in striatum .

Metformin: What Is It Used For

Metformin is an old warhorse in the pharma battle against diabetes. It has been the mainstay in the treatment of Type 2 Diabetes for more than fifty years, often matching or outperforming newer drugs.

In fact, many new combination drugs are often created with metformin as one of the main ingredients. Thanks to its long run in the pharmaceutical world, the side effects of Metformin are also well known.

The Metformin-PCOS connection has been studied extensively since a majority of health complications associated with PCOS are due to hyperinsulinemia . Metformin is known to reduce circulating insulin levels. The use of this drug in women with PCOS has shown highly encouraging results.

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Can Metformin Lower The Risk Of Cancer

Patients with diabetes may have a 1.5- to 2-fold increase in cancer risk, according to a report from 2010. However, recent research has shown that metformin may be effective in treating and preventing cancer. Studies published in 2018 and 2015 suggest that people taking metformin may have a lower risk for cancer, with some studies suggesting a reduced risk of 30% to 50%.

How does this work? Some researchers have suggested that metformin slows or stops tumor cell growth. However, this research is still limited. Its also hard to tell if metformin itself lowered cancer risk in the supporting studies because other treatments and interventions may have been involved. Its unlikely that metformin will be prescribed to treat cancer at this time based on the currently available data.

The bottom line

Most of the myths regarding long-term, negative side effects of are not cause for concern. However, some side effects, like anemia, are worth being aware of. Metformin can also cause short-term side effects like stomach discomfort.

In Some Patients Metformin Impairs Thinking

Diabetes-Induced Memory Loss: Signs And Prevention | FYI

This article is a collaboration between MedPage Today and:

The widely acclaimed diabetes drug metformin was linked with impaired brain function in patients who took the drug, although supplementation with vitamin B12 may alleviate metformin-induced deficiencies, according to new research.

In a retrospective study, diabetic patients who were taking metformin had worse cognitive performance than those not taking the drug , Eileen Moore, PhD, of the University of Melbourne in Australia, and colleagues reported online in Diabetes Care.

Action Points

  • The widely acclaimed diabetes drug metformin was linked with impaired brain function in patients who took the drug, although supplementation with vitamin B12 may alleviate metformin-induced deficiencies.
  • Note that patients with diabetes who had vitamin B12 levels less than 250 pmol/L also had worse cognitive performance, and the association between metformin and cognitive impairment was weakened after adjusting for vitamin B12 levels.

Additionally, patients with diabetes who had vitamin B12 levels less than 250 pmol/L also had worse cognitive performance , and the association between metformin and cognitive impairment was weakened after adjusting for vitamin B12 levels, they stated.

The studies used the mini-mental state exam to determine cognitive performance.

The researchers found, in adjusted analyses, patients with type 2 diabetes had worse cognitive performance than those without the condition .

Disclosures

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Can Metformin Cause Memory Loss

Getting the right information about Can Metformin Cause Memory Loss can be tricky to find on the internet. However we shed some light on it in this article. #1 Secret To Improving Your Memory

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Now before you can improve your memory you first need to learn whats wrong with it. When you understand whats wrong with it then you can begin to take steps in finding out how to repair it and how to return your mind back to its formal magnificence prior to you head out and acquire some fancy new tablets or some elegant brain training games you may want to take a look at the fundamentals of memory loss. As soon as you have actually covered the fundamentals and have actually repaired all those issues then you can start to examine other techniques to reverse your memory loss. Here are a couple of factors you may be having memory loss at the moment.

How Long Will Metformin Take To Work

Metformin can start to improve blood sugar control within a week or so. But it can take up to three months to see the full effect. So, doctors often start people on a low metformin dosage and gradually increase it. Closely monitoring your blood sugar during this time will help your doctor judge how well it’s working.

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