Showing posts with label Schizophrenia. Show all posts
Showing posts with label Schizophrenia. Show all posts

Thursday, 30 August 2018

60 Years of Research Links Gluten Grains to Schizophrenia

60 Years of Research Links Gluten Grains to Schizophrenia:

 Does the consumption of gluten-containing grains contribute to psychiatric disorders such as schizophrenia?


60 Years of Research Links Gluten Grains to Schizophrenia

60 Years of Research Links Gluten Grains to Schizophrenia
Does the consumption of gluten-containing grains contribute to psychiatric disorders such as schizophrenia?
Believe it or not, this question has been asked for well over 60 years by researchers who stumbled upon evidence that the removal of gluten from the diet results in improved symptoms, or conversely, that gluten grain consumption leads to higher prevalence of both neurological and psychiatric problems.
Reports of the resolution of emotional disturbances after the institution of a "gluten free" diet exist in medical literature at least as far back as 1951.[i]  In 1954, Sleisenger reported to have found three schizophrenics among a group of thirty-two adults with celiac disease,[ii] and in 1957, Bossak, Wang and Aldersberg reported discovering 5 psychotic patients among 94 patients with celiac disease.[iii]   The initial recognition that celiac disease, or at least gluten sensitivity, occurred at a far higher prevalence among schizophrenics than the healthy, opened up the door to more elaborate investigations.

Wartime Reduction In Gluten Grain Rations Reduces Schizophrenia Prevalence

For instance, in 1966, a remarkable epidemiological study was published in The American Journal of Clinical Nutrition titled,"Wheat "Consumption" and Hospital Admissions for Schizophrenia During World War II," which sought to confirm the possible relationship between schizophrenia and celiac disease by investigating the reported decrease in the number of admissions to mental hospitals during some wars.
The author of the study, F. C. Dohan, M.D., looked at the number of women admitted to the mental hospitals in Finland, Norway, Sweden, Canada and the United States before and after World War II. These figures were then compared to volume of wheat and rye consumed during those two periods. As Dohan explains:
"The percent change in the mean annual number of first admissions for schizophrenia to the hospital in each of the five countries from the respective pre-war mean was compared to the percent change in the "consumption" of wheat and wheat plus rye."
The results can be view in the figure below:
Wheat Consumption Data and Psychiatric Problems
As you can see above, the percent change from prewar values during World War II in the number of patients admitted to hospitals for the first time with schizophrenia in five countries was found to be significantly correlated to the percent change in the amount of wheat and wheat plus rye consumed. As gluten grain rations decreased, so did the worldwide rate of first-time admission to psychiatric institutions.

Increasing Body of Research Implicates Gluten Grains in Schizophrenia Pathogenesis

Since then, a number of studies have been published linking the consumption of gluten-containing grains to schizophrenia:
  • Schizophrenia Bulletin, 2011: Persons with schizophrenia have higher than expected titers of antibodies (7 fold increased prevalence) related to celiac disease and gluten sensitivity.[iv]
  • Schizophrenia Research, 2010: Individual with schizophrenia have a novel immune response to gliadin distinct from those with celiac disease (i.e. absence of antibodies to the transglutaminase enzyme and the HLA-DQ2/DQ8 genetic locus of susceptibility.[v]
  • Acta Psychiatra Scandinavica, 2006: A review of the literature found a drastic reduction, if not full remission, of schizophrenic symptoms after initiation of gluten withdrawal has been noted in a variety of studies.[vi]
  • Biological Psychiatry, 1984: Only two chronic schizophrenics were found among over 65,000 examined or closely observed adults in remote regions of Papua New Guinea (PNG, 1950-1967) and Malaita , Solomon Islands (1980-1981), and on Yap , Micronesia (1947-1948), who do not consume grains. Researchers noted that when these peoples became partially westernized and consumed wheat, barley beer, and rice, the prevalence reached European levels.[vii]
  • Science, 1976: Schizophrenics maintained on a grain-free and milk-free diet challenged with gluten saw interruption of their therapeutic progress. After termination of the gluten challenge, the course of improvement was reinstated.[viii]

New Research Confirms Gliadin-Schizophrenia Link

The latest study to confirm the gluten-schizophrenia link was published this month in the World Journal of Biological Psychiatry and titled, "Elevated gliadin antibody levels in individuals with schizophrenia." Researchers compared the blood work of 950 schizophrenics with 1,000 healthy controls. They discovered that the odds ratio of having anti-gliadin IgG antibodies was 2.13 times higher in schizophrenics, indicating that t the least schizophrenics are more likely to experience an adverse immune response to wheat proteins.
Gliadin is the alcohol soluble complex of proteins found within what is known colloquially as gluten (the term is misleading as wheat technically contains over 23,000 different proteins, not one), and is considered the primary immunotoxic class of proteins in wheat. For instance, in celiac disease, a genetically mediated immune process unfurls where upon exposure to gliadin, the enzyme tissue transglutaminase modifies the protein, and the immune system cross-reacts with the small-bowel tissue, causing an inflammatory reaction that results in the destruction of the intestinal villi.
The discovery of antibodies to gliadin in the blood of both celiac disease patients and schizophrenics implies several things:
  • The Wheat Protein Gliadin Doesn't Break Down During Digestion: Undigested wheat-derived macromolecules can act as antigens, provoking an antibody-mediated immune response, particularly if they get through the intestinal lining and into the blood. The fact that antibodies to wheat protein gliadin can be found in the blood indicates that it is not being fully broken down into constituent amino acids.
  • Wheat Proteins In the Blood Stimulate Auto-Immunity: The presence of gliadin in the blood also indicates intestinal permeability. It turns out that gliadin has been found to up-regulate the protein zonulin in the gut of those either with or without celiac disease, which essentially opens "pandora's box" of intestinal permeability, and subsequent autoimmunity.[ix] In another essay, we also described the intestinal permeability generating effects of wheat lectin, also known as Wheat Germ Agglutinin (WGA) – [see Opening Pandora's Bread Box]
  • Wheat Protein May Cause The Immune System To Attack the Nervous System: Anti-gliadin antibodies appear to cross react with neurological self-structures, which may explain how they contribute to schizophrenia. A study published in 2007 in the Journal of Immunology found that anti-gliadin antibodies bind to neuronal synapsin I, a protein found within nerve terminal of axons, which the study authors believe may explain why gliadin contributes to "neurologic complications such as neuropathy, ataxia, seizures, and neurobehavioral changes."[x] Another example of anti-gliadin antibodies possibly contributing to the formation of autoantibodies against neurological self-structures is in autism.  A 2004 study in Nutritional Neuroscience found that children with autism show antibody elevations against gliadin and cerebellar (brain) proteins simultaneously. In other words, wheat proteins may simulate antibodies that cross-react, resulting in neurological damage.[xi] Learn more on the topic by reading our article: Wheat: A Missing Piece In the Autism Puzzle

Just A Problem for Schizophrenics? There Is One Surefire Way To Find Out

A broader question is also raised by this research.  Since anti-gliadin antibodies are found in approximately 27% of the population, and as high as 57% in those suffering from neurological dysfunction of unknown causes,[xii] is it then possible that gluten-containing grains are adversely affecting the mental health of the world at large, perhaps mostly on a subclinical basis?  We actually explored this possibility in greater depth in our essay The Dark Side of Wheat, focusing on the Roman empire's use of the wheat-based economy as a form of both cultural and biological imperialism.
Certainly we can say that wheat adversely affects the physical health of far more than present day conventional medical estimates which focus on celiac disease and food allergies to wheat. We have indexed over 200 adverse health effects of gluten-containing grains, with 20 adverse 'modes of toxicity' described thus far. Interestingly, top on the list is neurotoxicity, with 23 articles describing this effect available to view here: Wheat Neurotoxicity Link.
There are likely far too many variables to ever point to gluten-containing grains as a singular cause of psychiatric problems, malaise, mania, addiction, depression, schizophrenia, etc. However, one thing is sure. Your first hand experience is as valuable as a double-blind, placebo-controlled, randomized human trial. And so, if you remove them from your diet, and you feel better, and health conditions, both physical and mental, improve, then there is no better proof than that!


Resources

  • [i] Haas, S. V. and Haas, M. P.  Management of Celiac Disease.  Philadelphia, 1951. J. B. Lippincott Co.
  • [ii] Sleisenger, M. H. Personal communication.
  • [iii] Bossak, E.T., Wang, C.I. and Adlersberg, D.I. Clinical aspects of malabsorption syndrome (idiopathic sprue). In: The Malabsorption Syndrome, New York, 1957. Grune & Stratton, Inc.
  • [iv] Nicola G Cascella, Debra Kryszak, Bushra Bhatti, Patricia Gregory, Deanna L Kelly, Joseph P Mc Evoy, Alessio Fasano, William W Eaton. Prevalence of celiac disease and gluten sensitivity in the United States clinical antipsychotic trials of intervention effectiveness study population. Schizophr Bull. 2011 Jan;37(1):94-100. Epub 2009 Jun 3.
  • [v] Diana Samaroo, Faith Dickerson, Donald D Kasarda, Peter H R Green, Chiara Briani, Robert H Yolken, Armin Alaedini. Novel immune response to gluten in individuals with schizophrenia. Schizophr Res. 2010 May;118(1-3):248-55. Epub 2009 Sep 11.
  • [vi] A E Kalaydjian, W Eaton, N Cascella, A Fasano. The gluten connection: the association between schizophrenia and celiac disease. Acta Psychiatr Scand. 2006 Feb;113(2):82-90.
  • [vii] F C Dohan, E H Harper, M H Clark, R B Rodrigue, V Zigas. Is schizophrenia rare if grain is rare? Biol Psychiatry. 1984 Mar;19(3):385-99.
  • [viii] M M Singh, S R Kay. Wheat gluten as a pathogenic factor in schizophrenia. Science. 1976 Jan 30;191(4225):401-2.
Disclaimer: This article is not intended to provide medical advice, diagnosis or treatment. Views expressed here do not necessarily reflect those of GreenMedInfo or its staff.

Saturday, 2 December 2017

How Music Can Help You Combat Anxiety

How Music Can Help With Anxiety

This is an extensive study but very interesting and helpful.




Music, which may be the most ancient human language, has the potential to improve neurodegenerative and neuropsychiatric disorders by creating new brain cells and neural connectivity. Not only that, but music restores hormonal and immunological balance in a way mirroring adaptogenic herbs
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The Evolution of Music

Music, the universal language, has been woven into the fabric of human culture since time immemorial. Rather than being a modern human invention, the creation of musical harmonies, using the voice as an instrument, and moving to rhythms may have long been crystallized as part of the human condition. A historical facet of the human condition, research implicates music in the cementing of social bonds, the establishment of monogamy, and as a primitive mode of communication (1). In fact, by forging social communion and engendering a sense of group identity, music may have been foundational to the emergence of large-scale pre-human civilizations (1).

When Homo sapiens arrived in Europe forty thousand years ago, they drove the Neanderthals, one of our hominid cousins, to extinction. Archeological evidence demonstrates that the arrival of Homo sapiens coincided with the time to which elaborate art adorning caves found in southeastern France and northern Italy has been dated, as well as other artistic expressions such as carved figurines, symbolic artifacts, and sophisticated bone and ivory musical instruments (1). While some researchers argue that music may have contributed to the social cohesion that led Homo sapiens to dominate over our Neanderthal cousins, there are many flaws in this logic as Neanderthal instruments may have been made from perishable objects which were not subject to preservation (1).

However, archaeologists have surmised that a more primitive human relative, Homo heidelbergensis, as well as Neanderthals, had access to at least one instrument at their disposal: the human voice (1). Their fossils contain a bone known as the hyoid at an anatomical position resembling that of contemporary humans, which means that their voice boxes were descended enough to allow speech and singing (1). This implies that singing conferred some sort of evolutionary advantage, the nature of which has been hotly contested. One promising theory, advanced by Leslie Aiello and Robin Dunbar, is that primitive song mediated the transmission of emotional states at a larger scale than physical grooming of insects, a more rudimentary form of social bonding, would accomplish (1).

However, even more plausible is that the versatility of the voice evolved in order to facilitate motherese, an early form of baby-talk that allowed prehistoric mothers to console their babies from a distance while they engaged in other activities (1). Scientist Dean Falk, a proponent of this theory, advocates that this motherese became the precursor to proto-language and proto-music (1). Therefore, our brains are literally wired from birth to receive musical tones. In fact, neural circuits originally serving another function may have been repurposed in evolutionary history for the processing of music.

This may be why anthropological and ethnomusicological studies reveal that contemporary hunter-gatherer cultures use music therapeutically, which provides us insight as to the ways in which our predecessors may have incorporated music into their healing arts. That many people in fast-paced industrialized societies lead lives devoid of music is a testament to the evolutionary mismatch of modern times which has divorced us from our very nature.

Music Rewires The Brain

In one study, researchers examined the brains of individuals using functional magnetic resonance imaging (fMRI), a technique that tracks cerebral blood flow (2). They found that when subjects listened to songs from their preferred musical genres, they exhibited enhanced levels of brain connectivity (2). Most pronounced was connectivity in the brain region called the default mode or resting-state network, which is implicated in internal mentation, or “the introspective and adaptive mental activities in which humans spontaneously and deliberately engage in every day” (2).

This brain area, which may be compromised in neurological disorders such as autism, schizophrenia, depression, post-traumatic stress disorder (PTSD), mild cognitive impairment, and Alzheimer's disease, is correlated with internally focused thoughts such as daydreaming, past recall, empathy, and self-awareness, which illuminates why music has been shown to trigger self-referential thoughts and memories (3, 4, 5). “Described as functioning somewhat like a toggle switch between outwardly focused mind states and the internal or subjective sense of self, this network appears to include mind-wandering experiences such as imagining the future, the discovering of new possibilities (hopes), and the affective significance of aspirations or dreams” (6).

Activation of the default mode network (DMN) is also crucial for processing psychosocial interactions and more advanced cognitive abilities such as reading comprehension, creativity, moral evaluations, and divergent thinking (7). In addition, stimulating the DMN may recruit previously encoded memories and support cognitive processes within domains that are compromised in neurodegenerative diseases, such as the processing of autobiographical, episodic, and socio-emotional memories as well as self-reflective thought (6).

In the fMRI experiment, the hippocampus was another brain region where connectivity between nerve cells was altered when subjects heard their favorite song, regardless of its acoustic characteristics (6). The hippocampus is essential for the acquisition of emotional and social memories, a process which may be disturbed in neurodegenerative disease (6)
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Music Therapy Elicits Neuroregeneration

Music has been demonstrated to affect the cerebral nerves in humans spanning the age gamut from fetus to adult (Abbott, 2002), perhaps suggesting that music acts as a tonic for the brain. Researchers are in fact proposing that music modulates the secretion of steroid hormones, which ultimately incites repair and regeneration of cerebral nerves.

In the animal kingdom, we can find plausibility for a mechanism in which steroid hormones promote neurogenesis, or the ability to create new nerve cells, a process which was previously perceived to be arrested after birth in mammals (8). For instance, in song birds, steroid hormones such as testosterone and estrogen play a role in multiple steps of neurogenesis such as organization and survival of brain cells and the production of neural networks where vocal behaviors reside (9, 10).


In addition, research is intimating that music facilitates cerebral plasticity, or the expansion of neural networks and connectivity in response to the environment. Music-induced cerebral plasticity creates changes in brain cell numbers and activity in response to music which can persist for a long time (11). Studies comparing populations of singers to non-singers and music students to music non-learners, for instance, highlight that music triggers neural plasticity (8). Neural plasticity and the creation of new brain circuits may compensate for functional deficits when one neural network takes over for another that is malfunctioning (8).
The mechanism whereby music leads to neural plasticity is likely mediated by steroid hormones, which are generated by nerve cells and elicit neuroactive and neuroprotective roles (13). For example, the sex steroids estrogen and testosterone elevate levels of so-called neurotrophic substances such as nerve growth factor (NGF) and brain-derived neurotrophic factor (BDNF), which contribute to nerve cell proliferation (cell division) and survival (8). Both are also closely “involved with the expression, regeneration, repair and protection of nerve cells via gene expression regulation and non-genomic circuits” (8).

Friday, 6 May 2016

Yeast Infection Linked to Mental Illness

Yeast Infection Linked to Mental Illness

Read the entire article by clicking the link above.

Yeast Infection Linked to Mental Illness

Candida infections also more common among those with memory loss

Released: 3-May-2016 10:50 AM EDT
Embargo expired: 4-May-2016 10:30 AM EDT
Source Newsroom: Johns Hopkins Medicine
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Citations npj Schizophrenia; MH-94268
Newswise — In a study prompted in part by suggestions from people with mental illness, Johns Hopkins researchers found that a history of Candida yeast infections was more common in a group of men with schizophrenia or bipolar disorder than in those without these disorders, and that women with schizophrenia or bipolar disorder who tested positive for Candida performed worse on a standard memory test than women with schizophrenia or bipolar disorder who had no evidence of past infection.