Azithromycin Antibiotic May Help PANS

November 23, 2016 · Posted in Potential Treatments · Comment 

PANS obsessive compulsive behavior following infection

PANS is a neuropsychiatric syndrome characterized by the acute onset of obsessive compulsive and other abnormal behaviors, tics, and mood changes that appear in a child following a bacterial or viral infection. PANS refers to any pediatric acute-onset neuropsychiatric syndrome of this type, while PANDAS refers more specifically to such a syndrome that occurs after exposure to streptococcal infections.

New research suggests that treatment with the antibiotic azithromycin can treat PANS. In a study presented at the 2016 meeting of the Society of Biological Psychiatry, Tanya K. Murphy and colleagues found that among 32 children aged 4–14 who showed obsessive compulsive symptoms following an infection, those who were given a 4-week course of azithromycin (10mg/kg of body weight, up to 500 mg/day) saw a 26% drop in symptoms, compared to a 1% drop in symptoms in those who received placebo instead.

At the end of the four weeks, 38.9% of the azithromycin group were classified as much improved or very much improved, while no one in the placebo group achieved this level of improvement. Azithromycin treatment increased the QTc interval (a measure of heart rate) and pulse in the study participants, but did not have any other notable side effects.

PANS is thought to arise from an immune response to infection that goes awry and begins attacking neurons in the brain, particularly in the thalamus. For a more complete review of PANS, see several of our earlier articles about PANS and an excellent review article by researcher Kiki Chang and colleagues in the Journal of Child and Adolescent Psychopharmacology in 2015.

It is important to work up a child suspected of having PANS, as the syndrome does not usually respond to conventional psychiatric treatment and often requires anti-inflammatory drugs (steroids or immunosuppressants), intravenous immunoglobulin (IVIG), plasma exchange, the TNF alpha blocker infliximab, or antibiotics.

Diagnosing PANS

February 24, 2016 · Posted in Diagnosis · Comment 

psychiatric symptoms following an infection

Pediatric Acute-Onset Neuropsychiatric Syndrome, or PANS, describes a condition in which a child develops acute onset of psychiatric symptoms following an infection. At the 2015 meeting of the American Academy of Child and Adolescent Psychiatry, researcher Tanya K. Murphy reported on symptoms that differentiate PANS from other childhood-onset illnesses. Kids with PANS are more likely to have:

  • sudden onset of symptoms
  • earlier age of onset
  • personality changes
  • new onset of attention deficit hyperactivity disorder (ADHD) symptoms
  • food refusal and weight loss
  • behavioral regression
  • deterioration in handwriting
  • severe sleep disruption
  • psychosis
  • memory problems
  • frequent urination
  • dilated pupils
  • an infection at the time of onset, particularly a group A streptococcal infection

A child with sudden onset of these symptoms following an infection may have PANS. It is important to differentiate PANS from traditional psychiatric diagnoses because treatment of PANS often consists of antibiotics, anti-inflammatory medications, and other treatments that target the immune system. See our case report about a boy with PANS.

A PANS Case Study, Immune Treatment Reduced Psychiatric Symptoms

October 14, 2015 · Posted in Diagnosis · Comment 

infection in a young child

Pediatric acute neuropsychiatric syndrome (PANS) is a little-known syndrome in which a child has an acute onset of psychiatric symptoms following a bacterial or viral infection, when the antibodies generated to fight the infection instead attack neurons in the brain. The behavioral alterations can be severe and resistant to the usual psychotropic drug treatments. PANS often requires antibiotics and immune-targeted therapies.

The following is a case report of a real child who had a sudden onset of depression and violence after getting sick with the flu, pneumonia, and a strep infection at the age of 4. (Names have been changed for privacy.)

Anne contacted this editor (Robert M. Post) seeking a consultation on her 6-year-old son, Jake. Two years earlier, he had suddenly become difficult—depressed, angry, and even violent. This coincided with the emergence of obsessive compulsive symptoms and urinary incontinence. He went from being able to read short sentences in pre-kindergarten, to being cognitively dull and not even able to recognize letters of the alphabet. He had been diagnosed with a mood disorder, and Anne was told it was probably bipolar disorder. But he didn’t respond to any of the typical medications, and suffered side effects including hallucinations, nightmares, bowel accidents, and worsening depression.

The best results came with the atypical antipsychotic risperidone. While it didn’t reduce all of Jake’s symptoms, Anne described it as “heaven” compared to earlier treatments. But Jake’s levels of prolactin started to increase, and he lost bladder control, so he had to stop taking risperidone. Jake’s doctor tried 18 different medication regimens with 8 different medications in less than a year without finding one that worked well. Jake had a horrible time in school, and Anne fretted about the lack of an effective, stable medication, saying, “He’s actually worse than I’ve ever seen him.”

Dr. Post recommended that they consider using high doses of quetiapine and valproate for Jake’s aggression and behavioral dyscontrol, along with the antioxidant N-acetylcysteine and vitamin D3. However, given that Jake’s symptoms were severe, involved cognitive and neurological abnormalities, and had begun after a flu-like illness, and was unresponsive to conventional treatment, Dr. Post suggested that Anne get Jake checked out for PANS and start charting Jake’s mood on a daily basis.

Jake began taking higher doses of quetiapine and valproate, and improved to the point that Anne said they restrained him only once a day, rather than four times per day. But his behavioral dyscontrol continued. In one memorable incident, after feeling picked on by other children at a baseball game, he lashed out at Anne, kicking her in the face with his cleats and punching her glasses off her face.

Anne told Dr. Post that the family had visited a neurologist, who said that she had never heard of PANS and suggested that Anne would have to travel across several states to see Dr. Post if she wanted to pursue that diagnosis.

Dr. Post encouraged Anne to keep looking for a doctor who would take the PANS idea seriously. He sent her a comprehensive review article about PANS by Dr. Kiki Chang and colleagues published in the Journal of Child and Adolescent Psychopharmacology in 2014.

This past June, Anne found a doctor who understood PANS and was willing to run the appropriate tests on Jake. The tests revealed that Jake had at one time been infected with the bacteria mycoplasma. Read more

PANS, an Inflammatory Disease with Psychiatric Symptoms in Kids

January 14, 2015 · Posted in Diagnosis · Comment 

Boy screamingResearcher Kiki Chang discussed pediatric acute onset neuropsychiatric syndrome (PANS), an inflammatory illness with psychiatric symptoms, at the 2014 meeting of the American Academy of Child and Adolescent Psychiatry. PANS is diagnosed when following an infection, a child who had previously been well has a sudden onset of obsessive-compulsive disorder (OCD), mood dysregulation, tics, food restriction behaviors, and a variety of other symptoms. A similar syndrome called PANDAS (for pediatric acute onset neuropsychiatic disease associated with streptococcal infections) was first identified in children recovering from strep throat. The children suddenly developed OCD behaviors and tics after a streptococcal infection.

However, PANS is associated with a variety of infections, including viruses and other infections that do not involve streptococcus bacteria. PANS syndrome is typified by acute onset of obsessive compulsive disorder and food restrictions as well as two or more of the following symptoms: anxiety, mood swings and depression, irritability and aggression, behavioral regression, decreases in school performance, sensory motor abnormalities, and somatic alterations such as decreased sleep and urinary incontinence, frequency, and/or urgency. Tics are not part of the formal diagnosis, but are present in about 50% of patients.

In Chang’s experience, the syndrome emerged 65% of the time in relationship to streptococcal infections, 13% with mycoplasma infections, 58% with viral infections, 39% in association with sinusitis, and 16% with otitis (inflammation of the ear). Increases in blood flow in the basal ganglia and increases in its volume likely occur due to antibodies that the immune system produces to fight infection, but which instead attack elements in the brain’s striatum, including tubulin, calcium calmodulin kinase II, lyso-GM-1, and dopamine D1 and D2 receptors.

Chang suggested that a diagnostic workup for PANS should include: a complete blood count and screening for red blood cell sedimentation rate, mycoplasma antibodies IgG and IgM, anti-nuclear antibodies (ANA), ferritin (a protein that stores iron in blood), celiac disease, and other laboratory measures that are commercially available in a panel produced by the company Moleculera Labs. A more detailed description of the PANS syndrome and its diagnosis and workup is available in the most recent 2014 issue of the Journal of the American Academy of Child and Adolescent Psychiatry.

In a related poster, Jennifer Frankovich, another researcher in Chang’s lab, reported that 62% of family members of children with PANS had a history of autoimmune disorders.

 

PANS: Sudden OCD or Restrictive Eating Disorder Onset Following an Infection

May 14, 2014 · Posted in Course of Illness · Comment 

Girl refusing foodAt the 2014 meeting of the International Society for Bipolar Disorder, researcher Kiki Chang discussed Pediatric Acute Onset Neuropsychiatric Syndromes (PANS), a newly identified phenomenon in which children suddenly develop obsessive compulsive disorder (OCD) and/or a restrictive eating disorder following an infection or other process that stimulates an immune/inflammatory reaction in the brain. A similar phenomenon, Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcal Infections (PANDAS), was initially identified by Susan Swedo of the National Institute of Mental Health (NIMH) and refers to children (usually under 6–10 years old) who develop OCD and/or tics following a case of strep throat or scarlet fever.

PANS may have an autoimmune component. In addition to acute onset of OCD and eating restriction, other symptoms include mood episodes (depression, mania), high aggression/irritability, anxiety (particularly separation anxiety), cognitive problems (ADHD, handwriting regression), regressive behaviors, and somatic signs such as sleep difficulties and urinary urgency. Biological abnormalities may include: abnormalities in red blood cell sedimentation rate, elevated C-reactive protein (CRP), high Anti DNase B and/or Antistreptolysin O (ASO) titers (anti-Streptococcus antibodies), mycoplasma IgG or IgM antibodies (signs of some types of pneumonia), ANA (antinuclear antibodies, sign of an autoimmune disease), ferritin (a protein that stores iron), copper, and a panel of tests (the Cunningham Panel) by the company Moleculera Labs that measures antibodies for four neural antibodies (dopamine D1 receptors, dopamine D2 receptors, lysoganglioside (LysoGM-1), and tubulin) and calcium/calmodulin-dependent protein kinase activity (CaMKII).

PANS is three times more likely to affect males than females, and in the Stanford PANS Clinic sample of 50 youth, PANS was associated with strep infections (65%), mycoplasma bacteria (13%), viral or urinary tract infection (58%), and ear and other infections in 16%.

Symptoms included OCD (86%), anxiety (92%), mood disturbance (88%), and aggression (82%).

Treatments include steroids, the immunosuppressant mycophenolate, intravenous immunoglobulin (IVIG), plasma exchange, the tumor necrosis factor blocker infliximab, and sometimes the antibiotic amoxicillin.

Chang also described a case in which a 15-year-old developed minocycline-induced OCD and acute onset of severe mania that included urinary incontinence and was unresponsive to medication. The patient had elevated ANA, anti-thyroid antibodies, and reduced complement C4 proteins, along with elevated antibodies to dopamine D1 and D2 receptors, LysoGM-1, and tubulin.

Cannabidiol (CBD) does not make cannabis safer

Amir Englund et al reported in Neuropsychopharmacology in A randomised, double-blind, cross-over trial of cannabis with four different CBD:THC ratios that CBD did not protect against the adverse effect of THC. These included impaired delayed verbal recall ( p?=?0.001) and induced positive psychotic symptoms on the PANSS ( p?=?2.41?×?10–5).

Editors Note: Not only does marijuana impair memory, it is a risk factor the onset of bipolar disorder and schizophrenia. When pot is used by a person with a unipolar or bipolar mood disorder, there are increases in depression and anxiety and an overall less favorable course of illness. If a person with a mood disorder uses heavy amounts of marijuana, they could consider buying N-acetylcysteine (NAC) 500mg and increasing the dose to 1,000mg twice a day within a week as this has been shown to decrease drug use compared to placebo in adolescents and young adults using and abusing pot. Most people who sell pot, are not well-informed about its dangers and just want to make money.

Civil War Data Shows Father’s Trauma Can Affect Son’s Lifespan

November 27, 2018 · Posted in Risk Factors · Comment 

Civil War soldiers

An economist at the University of California Los Angeles (UCLA) has used Civil War data to determine that trauma experienced by a father can affect the lifespan of his son, but that a mother’s healthy diet during pregnancy can neutralize this risk.

Researcher Dora Costa used records from the National Archive to identify Union soldiers who were held as prisoners of war (POWs) by the Confederacy. She compared records of their children’s lifespans to the children of Union soldiers who were never held as POWs, finding that the sons of POWs were more likely to have died at any given age. (The study included only children who lived to be at least 45 years old.) Detailed records were kept because families of soldiers and POWs were eligible for generous pensions.

When looking at the data, Costa expected to find that socioeconomic status was the factor that explained discrepancies in lifespans among children of Civil War veterans. However, she noticed that the difference in lifespan only appeared in sons, and only to sons born after the war.

This pointed to an epigenetic explanation. Epigenetics is the idea that some aspects of a parent’s experiences (such as deprivation, drug use, etc.) can be passed on to their children during the gene transcription process. While a parent’s inherited genetic sequence doesn’t change, the structure of their DNA can be wound tightly or loosely depending on life experiences, and this affects how easily their genes are transcribed when passed on to their children.

The sons of POWs in the worst camp environments (typically during the later years of the war when prisoner exchanges were less frequent and overcrowding and malnutrition were common in camps) had even shorter lifespans than the sons of POWs who were imprisoned in less dire circumstances.

The research also looked at birth months to determine whether mothers would have had access to good nutrition while pregnant. Sons born to POW fathers in the later months of the year (whose mothers were likely to have had access to good nutrition) had lifespans comparable to the sons of non-POWs, while sons of POWs born earlier in the year fared worse.

The research was published in the journal Proceedings of National Academy of Sciences in 2018.

Editor’s Note: This is another example in humans of findings that have been clear-cut in animal studies. A father’s experiences, such as stressors or substance abuse, can influence the next generation even if the parent has no contact with the offspring. Epigenetic marks on DNA, histones (the structures around which DNA is wound), or microRNA of the sperm appear to carry these unexpected transgenerational effects.

IVIG Produces Long-Term Results in PANDAS

November 3, 2017 · Posted in Potential Treatments · Comment 

PANDAS diagnosis

PANDAS, or pediatric autoimmune neuropsychiatric disorder associated with streptococcal infection, is an autoimmune condition that produces psychiatric symptoms that appear suddenly following a case of strep throat in children. These symptoms can include obsessive-compulsive symptoms, tics, and behavioral dyscontrol and regression. Treatments are still experimental, but those that target the immune system are expected to be most successful at improving PANDAS.

In 2015, Miro Kovacevic and colleagues published a case series describing the use of intravenous immunoglobulin treatment (IVIG) in twelve children with PANDAS in the Journal of Child and Adolescent Psychopharmacology. One or in some cases two injections of IVIG brought about long-term remission in the children with PANDAS.

IVIG consists of a wide range of antibodies from multiple individuals delivered via injection. This increase in the quality or quantity of antibodies in the recipient is thought to suppress the production of antibodies that attack brain cells, causing PANDAS. The case series was based on patients at a large clinical practice that specializes in the treatment of PANDAS. The practice used a dosage of 1.5g/kg divided into two daily doses of 750 mg/kg, meant to match twice the volume of the patients’ own immunoglobulin G.

IVIG and other anti-inflammatory approaches are also effective in PANS, a more general variation on PANDAS in which psychiatric symptoms occur following an infection other than strep.

Brain Growth in Infancy Predicts Autism

October 30, 2017 · Posted in Risk Factors · Comment 

infant

A 2017 article in the journal Nature suggests that brain scans during infancy can predict which kids at risk for autism will go on to develop the disorder, leading to earlier treatment. Studies have shown that children with autism have enlarged brains. The new research zeroes in on the time period when this overgrowth occurs.

Researcher Heather Cody Hazlett and colleagues used magnetic resonance imaging (MRI) scans to measure brain growth in 106 high-risk infants with siblings who have autism spectrum disorder and 42 infants at low risk. The scans were performed when the infants were 6 months, 12 months, and 24 months old.

In 15 infants diagnosed with autism at 24 months, the researchers saw hyperexpansion of cortical surface area between 6 and 12 months and brain overgrowth between 12 and 24 months. The overgrowth coincided with symptoms of autism appearing, and with symptom severity.

The reseachers were able to create a computer algorithm that could predict whether an infant would develop autism based on images of brain growth. The algorithm corrected predicted autism 81% of the time.

Studies have suggested that starting interventions to treat autism early provides the best benefits, so using MRI to diagnose or predict autism before symptoms appear might allow for even earlier treatment that could be more effective.

The study also identified the sites of unusual brain development, which may help researchers determine what mechanisms lead to brain overgrowth in autism and eventually develop treatments that prevent these changes.

Immune Therapy with IVIG May Help Children with PANDAS

April 26, 2017 · Posted in Potential Treatments · Comment 

Healthy girl after IVIGA small number of children exposed to streptococcal bacteria have an autoimmune response that manifests in sudden, severe obsessive-compulsive behaviors and tics. This disorder is known as PANDAS: pediatric autoimmune neuropsychiatric disorder associated with streptococcal infection, and it resembles the broader disorder PANS, which can occur after other types of bacterial or viral infections.

Research on treatments for PANDAS and PANS is scant, but therapies that target the immune system seem to have more success than typical psychiatric treatments. In a 2015 article in the Journal of Child and Adolescent Psychiatry, researcher Miro Kovacevic and colleagues described a case series of 12 youths with PANDAS who were treated with intravenous immunoglobin (IVIG), a treatment designed to regulate the immune system. (The participants also met diagnostic criteria for PANS.)

The authors suggest that PANDAS symptoms result from a misdirected immune response that attacks the patient’s brain instead of or in addition to attacking the initial infection. IVIG treatment uses a mixture of antibodies from about 1,000 people. When this mixture is infused into the patient’s blood, the antibodies help deflect the autoimmune attack on the patient’s body. All of the 12 patients had a good long-term response to IVIG. Some did well after just one infusion, while two needed a second infusion because they did not respond to the first, and five had recurring symptoms that required a second infusion. All of the patients had previously received two other types of treatment: a 5-day course of steroids and antibiotics, neither of which produced immediate improvements.

The authors concluded that effective long-term treatment of PANS or PANDAS should combine immune therapy, prevention of future infections with antibiotics, and treatment that targets their psychiatric symptoms, such as anti-obsessional medication or cognitive-behavioral therapy.

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