Transcript

Stress and the Autonomic Nervous System

©2012 True Health Medical Center

Anju Usman, M.D. True Health Medical Center.

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Stress  and  the    Autonomic  Nervous  System  

Au4sm  ONE  Lombard,  Illinois  

May  2012    

Anju  Usman,  MD  True  Health  Medical  Center  

Disclaimer  

•  Informa4on  is  for  educa4onal  purposes  only  •  Not  to  be  taken  as  specific  medical  advice  •  All  medical  decisions  regarding  your  child’s  health  issues  should  be  discussed  with  your  health  care  provider  

•  Clinical  trials  have  not  been  done  on  treatment  approaches  discussed  

Sometimes the most important thing in a whole day is the rest we take between two deep breaths. Etty Hillesum

Biomedical  Stressors  Gene4c  predisposi4ons  

Mother’s  Burden  Toxic  Metals  

Environmental  Pollutants  Electromagne4c  Fields  

Sensory  Input  Stress/Internal  Conflicts  

Dietary  Factors  Allergens  

Microbial/Biofilm  Immune/Inflammatory  Burden  

 

Stressed  Out  Lives!  

 – Biomedical  – Physical  – Mental    – Emo4onal  – Social  

Nega4ve  Ways  of  Handling  Stress  •  Watching  television    •  Skipping  exercise  •  Junk  food,  Fast  food    •  SUGAR  •  CAFFEINE    •  Pharmaceu4cals  •  Alcohol  •  Cell  Phones,  Emails,  Tex4ng,  Internet  •  Anger,  Yelling,  Blaming  Others…  •  Loss  of  self  confidence  and  self  esteem      

Stress and the Autonomic Nervous System

©2012 True Health Medical Center

Anju Usman, M.D. True Health Medical Center.

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Stress  Can  Age  You    •  University  of  California,  San  Francisco,  looked  at  white  blood  cells  in  mothers  whose  children  suffered  from  chronic  disorders  like  au4sm.  

•  They  found  clear  signs  of  accelerated  aging  in  mothers  who  had  cared  the  longest  for  children  with  disabili4es.    

•  The  youngest  cells  boast  the  longest  telomeres.    •  But  telomeres  in  the  more  stressed-­‐out  moms  were  significantly  shorter.      

•  Reflects  an  accelerated  aging  pa]ern  from  7-­‐15  yrs.        

Stressed  Out  Babies  In Utero - work, marriage, vaccines, diet, ultrasound, meds… Delivery Premies Infancy

•  Metabolic Toxins – metals, chemicals Allergens Dietary Infections EMFs Pharmaceutical Agents

•  Psychosocial Sensory overload Constant demands Separation

“Stress in infancy can affect genetics for generations to come”

How  do  children  manifest  stress?  – Colic  – Sleep  disrup4on  – Sensory  issues  -­‐  texture,  sound,  lights  – Flight  or  fight  response  (running  or  aggression)  

– Tantrums/Meltdowns  – Isola4on/disengaged  – Need  for  sameness  

What  are  the  main  metabolic  manifesta4ons  of  chronic  stress?  

•  Nervous  System  Maladap4on  •  Endocrine  /Hormone  Imbalance  •  Immune/Inflammatory  Dysregula4on  •  Gastrointes4nal  Disorders  •  Mitochondrial  Dysfunc4on  •  Oxida4ve  Stress    

Nervous  System  

•  Autonomic  Nervous  System  – Sympathe4c  – Parasympathe4c  

•  Neuroendocrine  System  – Hypothalamus/Pituitary  Axis  

•  Limbic  System  – Emo4onal  Nervous  System  

The  Emo4onal  Nervous  System  The  Limbic  System  

Emotions Memories Aggression OCD Pleasure/Pain Focus/Attention

Pituitary Hypothalamus Amygdala Hippocampus Cingulate Gyrus Basal Ganglia Ventral Tegmental Prefrontal Cortex

Stress and the Autonomic Nervous System

©2012 True Health Medical Center

Anju Usman, M.D. True Health Medical Center.

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Cor4sol  Levels  During  Human  Aging  Predict  Hippocampal  Atrophy  and  Memory  Deficits  

Lupien,  Sonia.    Nature  Neuroscience  1998  

•  Elevated  glucocor4coid  levels  produce  hippocampal  dysfunc4on  and  correlate  with  individual  deficits  in  spa4al  learning  in  aged  rats.  

•  Humans  with  significant  prolonged  cor4sol  eleva4ons  showed  reduced  hippocampal  volume  and  deficits  in  hippocampus-­‐dependent  memory.  

•  The  degree  of  hippocampal  atrophy  correlated  strongly  with  both  the  degree  of  cor4sol  eleva4on  over  4me  and  current  basal  cor4sol  levels.  

•  Therefore,  basal  cor4sol  eleva4on  may  cause  hippocampal  damage  and  impair  hippocampus-­‐dependent  learning  and  memory  in  humans.  

Abbreviated schematic of the Welch-Ruggiero unified brain/gut theory of emotions. The structures shown are sites of action of transmitters and peptides in mediating neurohumoral mechanisms sustaining adaptive behaviors accompanying arousal. Shaded area indicates viscera and brain are one system with bi-directional communication between the two, a theory that is in line with James-Lange.

PREDICTED ROLE OF SECRETIN AND OXYTOCIN IN THE TREATMENT OF BEHAVIORAL AND DEVELOPMENTAL DISORDERS: IMPLICATIONS FOR AUTISM Martha G. Welch and David A. Ruggiero

– Hypotheses  •  Inflamma4on  is  encoded  by  the  brain  •  Inflamma4on(stress)  causes  the  individual  to  maladapt  

– Assump4ons  •  The  brain  and  gut  form  a  single  physiologic  circuit  •  The  gut-­‐brain  axis  is  the  crossroads  of  condi4oning  via  interac4on  with  mother  

•  The  gut  is  cri4cal  to  condi4oning  reac4ons  to  stress  in  the  early  post  natal  period  

– Treatment  • Pep4des  like  Secre4n  and  Oxytocin  can  help        a  dysregulated  gut-­‐brain  system  

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Dr.  Martha  Welch  2009   Combined  Administra4on  of  Secre4n  and  Oxytocin  Inhibits  Chronic  Coli4s  and  Associated  Ac4va4on  of  Forebrain  Neurons  

–  Journal  of  Neurogastroenterology  and  Mo4lity  2010  •  Secre4n  expression  in  the  colon  is  lower  than  in  the  intes4nes    

•  S/OT  decreased  TNF  alpha  and  IFN  gamma  in  the  colon  •  S/OT    combo  reduced  inflamma4on  •  S/OT  decreased  ulcers  •  S/OT  decreased  IL-­‐6  in  amygdala  •  S/OT  may  act  in  synchrony  

             

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Secre4n   Oxytocin  •  Gut  mo4lity  •  Alkaliniza4on  •  Co-­‐localize  with  serotonin  •  Improves  bile  flow  •  Increases  blood  flow  to  GI  •  Brain  affects  NE,  Dopamine,  Angiotensin  II,  AT(1)R  

•  Released  by  Hypothalamus  

•  Gut  mo4lity  •  Inhibits  gastric  acid    •  Vasodila4on  •  Co-­‐localize  with  CCK  

•  Brain  antagonists  to  CRH  

•  Released  by  Amygdala  

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   Influence  of  pediatric  vaccines  on  amygdala  growth  and  opioid  ligand  binding  in  rhesus  macaque  infants      Laura  Hewitson    Acta  Neurobiol  Exp  2010      •  Vaccinated  animals  showed  an  increase  in  total  brain  volume.    •  The  amygdala,  a  specific  part  of  the  brain  associated  with  

emo4onal  responses  did  not  show  abnormali4es  un4l  aier  the  12-­‐month  vaccines  had  been  given.    

•  In  addi4on,  aier  the  12-­‐month  vaccines  only,  the  func4onal  brain  scans  showed  significant  differences  between  vaccinated  and  unvaccinated  groups.    

•  Vaccine  administra4on  was  associated    with  an  increase  in  opioid  binding  ac4vity  in    the  amygdala  compared  with  a  decrease  in    the  unvaccinated  group.    

Stress and the Autonomic Nervous System

©2012 True Health Medical Center

Anju Usman, M.D. True Health Medical Center.

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Au4sm,  amnesia,  hippocampus  and  learning    DeLong  GR    Neurosci  Biobehav  Rev.  1992  

               “Au4sm  is  postulated  to  be  the  developmental  syndrome  of  hippocampal  dysfunc4on.  The  hippocampus  is  postulated  to  be  necessary  for  normal  development  in  the  child  of  language  syntax,  seman4cs,  and  pragma4cs;  the  capacity  for  crea4vity  and  genera4vity  in  language  and  behavior,  and  combinatorial  possibili4es  in  general;  for  the  integra4on  of  mo4va4onal  states  with    

       experience  and  learning;  and  for  the            construc4on  of  a  complex,  useful  and  flexible  structure  of  meaning.”    

HPA  Axis  and  the  Nervous  System  :  The  Neuroendocrine  System  

•  Controls  reac4ons  to  stress  and  regulates  many  processes,  including    diges4on,  immunity,  mood  and  emo4ons,  sexuality,  and  energy  storage  and  use.  –  Hypothalamus  -­‐  homeostasis  of  the  body  –  Pituitary  -­‐    master  gland  of  the  endocrine  system  –  Adrenal  Gland  -­‐    interfaces  with  Hypothalamus  

•  Neurobiology  of  mood  disorders  and  func4onal  illnesses,  including  anxiety,  insomnia,  PTSD,  ADHD,  chronic  fa4gue  syndrome,  fibromyalgia  and  IBS.  

•  Both  hormones  and  neurotransmi]ers  are  chemical  messengers.    They  just  travel  thru  different  pathways.    

50% of 30 kids with ADD showed an abnormal HPA response. As measured by an abnormal dexamethasone suppression test (DST) and abnormal diurnal rhythm.

Normal  Diurnal  Cor4sol  Pa]ern  

Abnormal  Diurnal  Cor4sol  Pa]ern   HPA  Axis      

Hypothalmus  Pituitary  Adrenal  Thyroid  Gonad  

   

Stress and the Autonomic Nervous System

©2012 True Health Medical Center

Anju Usman, M.D. True Health Medical Center.

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Adrenal  Hormones  Adrenal Cortex

Steroid Hormones • Cortisol

(glucocorticoid) • Aldosterone

(mineralocorticoid) • Progesterone • DHEA • Testosterone • Estrogen

Adrenal Medulla Catecholamines

• Epinephrine • Norepinephrine

Adrenal  Pathways  

Smith  Lemli  Opitz  Syndrome  and  Low  Cholesterol  

•  Benefits  of  cholesterol  feeding  in  SLOS  Kelley  RT.  Inborn  errors  of  cholesterol  biosynthesis.  Adv  Pediatric  2000;47    

–  Beginning  to  walk  –  Star4ng  to  run  –  Growth  improvement  –  Less  infec4ons  –  Less  UV  light  sensi4vity  –  Increased  alertness  –  Head  banging  stops  –  Decreased  tac4le  defensiveness  –  Increased  sociability  –  Behavior  improves  –  Talking  started  in  adults    

 

Tierney 2006

Adrenal  Response  to  Stress  

 Adapta4on    – 3  stages  

• Alarm  (increased  cor4sol,  normal  DHEA,  increased  epinephrine,  norepinephrine)  

• Resistance  (pregnenolone  steals  cholesterol  to  make  cor4sol,  but  at  the  expense  of  sex  hormones,  increased  cor4sol,  low  DHEA)  

• Exhaus4on  (low  cor4sol,  low  DHEA)  

Hans Selye, M.D

Impact  of  Adrenal  Stress  Syndrome  

Blood  Sugar  Imbalances  – High  cor4sol,  insulin  receptor  insensi4vity,  excess  insulin  produc4on.  Insulin  resistance    and  hyperglycemia.  

– Low  cor4sol  affects  liver’s  ability  for  gluconeogenesis  and  glycogenolysis,  causing  hypoglycemia.  

Impact  of  Adrenal  Stress  Syndrome  

Sleep  – Adrenal  hypofunc4on,  low  cor4sol,  loss  of  ability  to  maintain  blood  sugar  levels  at  night,  causes  stress  response.    

– The  stress  response  causes  the  medulla  to  secrete  epinephrine  and  norepinephrine  to  try  to  mobilize  glucose  to  compensate  for  a  lack  of  cor4sol.  

– Epinephrine  and  Norepinephrine  ac4vate  the  sympathe4c  nervous  system  and  cause  night  4me  awakening.  

Strakis. Neuroendocrinology and pathophysiology of the stress response. 1995

Stress and the Autonomic Nervous System

©2012 True Health Medical Center

Anju Usman, M.D. True Health Medical Center.

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Impact  of  Adrenal  Stress  Syndrome  

         Thyroid  Defects  – High  cor4sol  has  a  suppressive  effect  on  5’deiodinase  which  converts  T4  (inac4ve)  to  T3(ac4ve).    

– T4  is  converted  to  T3,  reverse  T3,  T3  sulfate  and  T3  ace4c  acid.      

–  If  T4  is  normal  and  T3  is  low,  think  of  adrenal  stress.        Geuchot.  Physiological  and  pathological  varia2ons  in  saliva  cor2sol.  1982  LoPres4.  Thyroid  response  in  cri2cal  illness.1997      

Impact  of  Adrenal  Stress  Syndrome  Gastrointes4nal    Func4on  

– High  cor4sol  suppresses  secretory          Immunoglobulin  A  (sIg  A)  – High  cor4sol  contributes  to  dysbiosis  – High  cor4sol  causes  thinning  of  the  GI  lining  – Food  allergies/sensi4vi4es  ac4vate  the  GALT  and  place  the  body  in  an  alarm  pa]ern  

– High  cor4sol  decreases  gastric  and  colonic  mo4lity  causing  GERD  and  cons4pa4on  

Cunningham-­‐Rundies.    1978,  1979  Guhad.  Salivary  IgA  as  a  marker  of  social  stress  in  rats.  1996.  Soderholm.  Stress  and  the  gastrointes2nal  tract.  2001  

Gut  Brain  Axis  

•  A  bidirec4onal  communica4on  system  between  the  brain  and  gastrointes4nal  systems.  

•  Communica4on  occurs  along  immunologic,  neural,  and  biochemical  pathways.  

•  Gut  microbiota  can  effect  both  brain  development  and  behavior.  

•  Stress  also  can  alter  the  composi4on            of  Gut  microbiota.  

Maternally seperated rats have increased cortisol and increased BDNF. Bifidobactrium replacement improves hippocampal BDNF, but not in maternally seperated rats.

Stress  and  the  Gut  

•  When  young  rats  are  separated  from  their  mothers,  the  layer  of  cells  that  line  the  gut  becomes  weakened  and  more  permeable.  

•  Dr.  Mayer  Emeran,  professor  of  physiology  and  psychiatry  at  UCLA  reports  that  70  percent  of  his  pa4ents  with  chronic  GI  disorders  had  early  childhood  traumas.  

•  He  has  also  found  that  the  majority  of  pa4ents  with  anxiety  and  depression  have  some    

         altera4on  in  their  GI  func4ons.  

Stress and the Autonomic Nervous System

©2012 True Health Medical Center

Anju Usman, M.D. True Health Medical Center.

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Stress  and  Friendly  Bacteria  

Prenatal  stress  alters  the  bacterial  coloniza4on  of  the  gut  in  infant  monkeys.  Stress  reduced  the  overall  numbers  of  bifidobacteria  and  lactobacilli.  (Bailey,  2004)  

 

Exposure  to  stress  in  mice  reduces  the  number  and  diversity  of  commensal  microbial  popula4ons  while  leading  to  increased  coloniza4on  by  Citrobacter  roden4um.    (Bailey,  2010)  

             

Reduced  anxiety-­‐like  behavior  and  central  neurochemical  change  in  germ-­‐free  mice  

 Neurogastroenterology  &  MoQlity  Volume  23,  Issue  3,  pages  255–e119,  March  2011  

•  The  presence  of  gut  microbiota  regulates  the  set  point  for  hypothalamic-­‐pituitary-­‐adrenal  (HPA)  axis  ac4vity.  

•  Germ-­‐free  mice,  compared  to  SPF  mice,  exhibited  basal  behavior  in  the  EPM  (maze)  that  can  be  interpreted  as  anxioly4c.    

•  Altered  GF  behavior  was  accompanied  by  a  decrease  in  the  N-­‐methyl-­‐D-­‐aspartate  receptor  subunit  NR2B  mRNA  expression  in  the  central  amygdala,  increased  brain-­‐derived  neurotrophic  factor  expression  and  decreased  serotonin  receptor  1A  (5HT1A)  expression  in  the  dentate  granule  layer  of  the  hippocampus.  

•  The  presence  or  absence  of  conven4onal  intes4nal                microbiota  influences  the  development  of  behavior,                and  is  accompanied  by  neurochemical  changes  in  the  brain.    

Probio4cs  as  Psychotropics    Emerging  literature  is  showing  the  beneficial  effect  of  oral  probio4cs  on  mood  and  anxiety  symptoms.    

 In  a  double  blind,  placebo-­‐controlled  randomized  parallel  group  study,  daily  use  of  probio4cs  reduced  psychological  distress.  (Messaoudi,  2010)  

   A  number  of  studies  have  shown  the  an4-­‐anxiety  effects  of  probio4c  use  in  pa4ents  with  medical  condi4ons.      (Silk,  2009;  Sullivan  2009;  Patel,  2008;  O’Brien,  2004)  

   

Impact  of  Adrenal  Stress  Syndrome  Immune  

– Elevated  cor4sol  •  Low  sectretory  Ig  A,  which  affects  mucosal  barriers  like  

–  GALT  (gut  associated  lymphoid  4ssue)  –  BALT  (bronchi  associcated  lymphoid  4ssue)  –  BBB  (blood  brain  barrier)  –  Skin  

•  Low  wbc  •  Atrophy  of  thymus  •  Decreased  IL  2  produc4on  •  Shortened  telomeres  in  wbc    Daynes,  R.  1990  

Adrenals  and  Immune  Cont’d  “Neurotensin  is  increased  in  serum  of  young  children  with  auQsQc  disorder”    

J  Neuroinflamma4on.  2010;  7:  48.  Theoharis  C  Theoharides  

– Neurotensin  could  act  with  CRH  (cor4cotropin  releasing  hormone)  to  s4mulate  mast  cells  and  lead  to  neurogenic  inflamma4on  

– NT  s4mulates  lymphocytes,  ac4vates  T  cells,  and  enhances  interleukin  1  from  macrophages  

– Select  flavinoids  inhibit  release  of  proinflammatory  mediators  from  mast  cells  

Mitochondria  and    Stress    “Dynamic  regula4on  of  mitochondrial  func4ons  by  glucocor4coids”    Proc  Natl  Acad  Sci  USA.  2009  Feb  2.    Du  J  and  Manji    H.    

•  In  brain  cells  of  rats  treated  with  cor4costerone,  GR  latched  onto  Bcl-­‐2,  a  protein  that  affects  how  substances  get  in  and  out  of  mitochondria.  Brief  increases  of  cor4costerone  enhance  mitochondrial  func4ons.    

•  High  doses  or  long-­‐term  treatment  with  cor4costerone  led  to  decreased  levels  of  GR  and  Bcl-­‐2  in  mitochondria.  Similar  results  occur  in  rats  exposed  to  chronic  stress.  

•  Cor4sol    boosts  mitochondrial  func4ons  to  provide  cells  with  more  energy  for  coping  with  and  adap4ng  to  acute  challenges.    

•  However,  chronically  elevated  levels  of  cor4sol  may  reduce  mitochondria  cell  func4oning.    The  decrease  in  proper  cell  func4on  may  be  at  the  root  of  certain  chronic  physical  and  mental  illnesses.  

Stress and the Autonomic Nervous System

©2012 True Health Medical Center

Anju Usman, M.D. True Health Medical Center.

Page # 8

Stress  -­‐Induced  Oxida4ve  Changes  in  Brain              CNS  and  Neurological  Disorders  Oct.  2006.  Madrigal,  M.  

•  Numerous  systems  and  organs  are  affected  by  stress.    •  Stress  causes  the  atrophy  of  hippocampal  dendrites  or  even  the  

reduc4on  of  the  hippocampal  size  observed  in  brains  from  subjects  exposed  to  severe  or  chronic  stress.  

•  Excess  glucocor4coids  can  result  in  neurotoxicity,    modifica4ons  in  energy  metabolism,  and  an  increase  in  excitatory  amino  acids  such  as  glutamate  .    

•  Leads  to  the  ac4va4on  of  TNFα  convertase  (TACE)  and  TNFα  release  in  brain  of  rats  subjected  to  restraint  stress.  TNFalpha  ini4ates  the  transloca4on  of  the  transcrip4on  factor  NFκB  to  neuronal  nuclei.    

•  NFκB  ac4va4on  results  in  the  induc4on  of  iNOS  and  COX2,  two  enzymes  responsible  for  a  great  por4on  of  the  neurological  damage  produced  in  models  of  stress.  

Zinc  Deficiency  and  Stress  •  There  is  a  growing  body  of  literature  suppor4ng  the  associa4on  between  zinc  and  ADHD,  anorexic  behaviors,  depression,  and  anxiety.  

•  Zinc  plays    a  role  in  serotonin  and  glutamate  ac4vity  as  well  as  oxida4ve  stress.  

•  Zinc  deficient  animals  exhibit  anxiety  like  behaviors.  

•  Rats  fed  a  zinc  deficient  diet  were  shown  to  have  higher  levels  of  cor4costerone  following  exposure  to  stress.  

Cope,  et  al.  Curr  Opin  Clin  Nutr  Metab  Care.  2010  Nov;13(6):685-­‐9  

Bacopa helps oxidative stress, anxiety, and stimming in autistic rats

   

Chronic  Stress    

HPA  Axis      

Adrenal  Stress    

Neurotransmi]er  Imbalances  Abnormal  Cor4sol  

Hormone  Imbalances  Decreased  Immunity  

Gastrointes4nal  Disorders  Blood  Sugar  Dysregula4on  

                                                                                               

DYSAUTONOMIA

Dysautonomia  

Dysfunc4on  of  the  Autonomic  Nervous  System  (ANS)      

– Nervous  System  – Immune  System  – Gastrointes4nal  System  – Cardiovascular  System  – Endocrine/Hormone  System  

Autonomic  Nervous  System  

Fight and Flight = Sympathetic Nervous System

Rest and Digest = Parasympathetic Nervous System

Stress and the Autonomic Nervous System

©2012 True Health Medical Center

Anju Usman, M.D. True Health Medical Center.

Page # 9

Symptoms  of  Dysautonomia  •  Excessive  fa4gue,  sleep  disrup4on  •  Excessive  heat  or  cold    •  Loss  of  swea4ng  or  excessive  swea4ng  •  Excessive  urina4on  and  thirst,  salt  cravings  •  Lightheadedness,  dizziness,  orthosta4c  hypotension,  syncope    •  Rapid  or  slow  heart  rate    •  Noise  and  Light  Sensi4vity  •  Tremulousness,  Dysequilibrium  •  Feelings  of  anxiety  or  panic    •  Headaches,    nerve  pain,  numbness    •  Facial  flushing  •  Cons4pa4on,  Diarrhea,  Nausea,  Reflux,  Dysmo4lity  •  Seizures  

Possible  Signs  and  Symptoms  of  Dysautonomia  in  ASD  

•  Poor  self  regula4on/tantrums  •  Light  and  Sound  sensi4vi4es  •  Irritable  when  misses  meals    •  Difficult  transi4oning  to  new  environment  

– Light,  sound,  temperature  changes  

•  Need  for  deep  pressure  to  help  regulate    •  Head  banging  •  Food  refusal    •  Licking  behavior  (salt  seeking)  

Reduced  Cardiac  Parasympathe4c  Ac4vity  in  Children  with  Au4sm    

 Xue  Ming    Brain  and  Development  October  2005    

•  Many  of  the  clinical  symptoms  of  au4sm  suggest  autonomic  dysfunc4on.    

•  The  aim  of  this  study  (n=28),  (control=117)  was  to  measure  baseline  cardiovascular  autonomic  func4on  in  children  with  au4sm.    

•  The  results  suggest  that  there  is  low  baseline  cardiac  parasympathe4c  ac4vity  with  evidence  of  elevated  sympathe4c  tone  in  children  with  au4sm  whether  or  not  they  have  symptoms  or  signs  of  autonomic  abnormali4es.  

Heart  Rate  Variability   Mul4scale  Model  for  the  Assessment  of  Autonomic  Dysfunc4on  in  Human  Endotoxemia  

Foteinou  PT  Physiol  Genomics.  2010  Jun  

           Severe  injury  and  infec4on  are  associated  with  autonomic  dysfunc4on.  The  realiza4on  that  a  dysregula4on  in  autonomic  func4on  may  predispose  a  host  to  excessive  inflammatory  processes  has  renewed  interest  in  understanding  the  role  of  central  nervous  system  (CNS)  in  modula4ng  systemic  inflammatory  processes.  Assessment  of  heart  rate  variability  (HRV)  has  been  used  to  evaluate  systemic  abnormali4es  and  as  a  predictor  of  the  severity  of  illness.  

             

Stress and the Autonomic Nervous System

©2012 True Health Medical Center

Anju Usman, M.D. True Health Medical Center.

Page # 10

Causes  of  Dysautonomia  

•  Autoimmune  disorders  esp.  Type  I  diabetes  •  Brain  injury  •  Neurodegenera4ve  diseases  •  Exposure  to  toxic  chemicals  •  Infec4ons  (viral)  •  Gene4c  factors  •  Hereditary  connec4ve  4ssues  diseases  •  Pregnancy  •  Physical  Trauma  •  Unknown    

Autonomic  Nervous  System  (ANS)  •  Act  in  opposi4on    •  Affects    

•  heart  rate  •   diges4on  •   respira4on  rate    •  saliva4on    •  perspira4on    •  diameter  of  the  pupils    

•  urina4on    •  sexual  arousal  

•  Neurotransmi]ers  •  Acetylcholine  •  Norepinephrine  and  Epinephrine  

     

The  Vagus  Nerve    •  Main  nerve  of  the  parasympathe4c  nervous  system  •  Inherently  communicates  with  the  splenic  nerve  to  suppress  TNF  alpha  produc4on  in  the  spleen  and  modulate  immune  func4on.  (Dr.  Rosas-­‐Ballina)  

•  Efferent  or  Dorsal  Motor  Vagus  Nucleus  (DMV)  •  Motor  to  Pharynx,  Larynx,  GI,  Bladder  

•  Afferent  or  Sensory  (80%)  •  Back  to  the  brain  from  the  ear,            tongue,  larynx,  GI  tract  

•  Releases  ACh  (acetylcholine)    •  Nico4nic  Receptors  •  Muscarinic  Receptors  

 

Neurotoxic Brainstem Impairment as Proposed Threshold Event in Autistic Regression

McGinnis WR, Miller VM, Audya T and Edelson S.

CRC Press 2009

•  Oxida4ve  Stress,  inflamma4on  and  immune  abnormali4es  seen  in  ASD  are  related  to  a  toxic  injury  to  the  primi4ve  brainstem.  

•  Impairment  of  the  dorsal  vagal  complex  (DVC)  could  account  for  the  cardinal  features  of  au4sm.  

•  Regression  aier  age  1  could  be  triggered  by  toxic  effects  on  small  areas  of  the  brainstem  that  lack  blood-­‐brain-­‐barrier  (BBB).  

Vagus  Nerve  Cools  Gut  Inflamma4on  Mice exposed to sodium dextran sulfate to simulate inflammatory bowel disease. Mice with intact vagus nerve exhibit less inflammation in the gut. Mice with vagus nerve cut produced heightened inflammation in the gut. The vagus nerve by releasing Acetylcholine stimulates T regulatory cells that lower inflammation. O'Mahony C. Loss of vagal anti-inflammatory effect in-vivo visualization and adoptive

transfer. Am J Physiol Regul Integr Comp Physiol. Aug 12 2009.

Slow  –Transit  Cons4pa4on  Intern.  Symposium  of  Gastrointes4nal  Mo4lity,  Copenhagen,  Denmark,  1996  Altomare,  et  al…  

•  Autonomic  neuropathy  thought  to  play  a  role  in  the  pathogenesis  of  slow  transit  cons4pa4on.    

•  Common  issues-­‐  eg.  reflux,  gallbladder  dysmo4lity,  decreased  gastric  emptying,  delayed  orocecal  transit  4me,  abnormal  recto-­‐anal  inhibitory  reflex,  decreased  rectal  sensi4vity.  

•  Autonomic  neuropathy  in  14/18  pts.  (SST=sweat  spot  test)  •  Slow  transit  cons4pa4on  is  associated  with  impaired  

func4on  of  other  gastrointes4nal  organs.  •  Severe  cons4pa4on  may  be  the  main  complaint  of  a  

systemic  disease  involving  several  organs  and  possibly              the  autonomic  nervous  system.  

Stress and the Autonomic Nervous System

©2012 True Health Medical Center

Anju Usman, M.D. True Health Medical Center.

Page # 11

Basic  Biomedical  Strategy  •  History  and  Physical  Examina4on  •  Laboratory  Tes4ng  •  Clean  Up  

–  Environment  –  Diet  –  Gut  –  Stressors  

•  Start  Founda4onal  Nutrients    •  Address  HPA  Axis  and  Dysautonomia  •  Treat  Underlying  Immune  Issues  and  Inflamma4on  •  Support  Detoxifica4on  Pathways,  Methyla4on,            

Sulfa4on,  Glutathione  •  Address  Mitochondrial  Dysfunc4on  •  Heavy  Metal/Chemical  Detoxifica4on  

History  

•  Adrenal  Stress  •  Glycemic  Control  •  Autonomic  Func4on  

– Temperature  Regula4on  – Swea4ng  – GI  Mo4lity  – Sensory  Issues  – Sleep  pa]erns  

Signs  and  Symptoms  of  Adrenal  Stress      Adrenal  HypofuncQon  

Cannot  stay  asleep  Craves  salt  Slow  starter  

Aiernoon  fa4gue  Dizziness  on  standing  Aiernoon  headaches  

Low  cor4sol  Hi  epinephrine  High  anxiety  

Low  glucose  (hypoglycemia)  Craves  sweets  

Irritable  if  meals  missed  Be]er  with  meals  

 

Adrenal  HyperfuncQon    

Cannot  fall  asleep  Perspires  easy  Lots  of  stress  Weight  gain  

Craves  sweets  aier  meals  Sleepy  aier  meals  Wakes  up  4red  Hyperac4vity  

High  cor4sol  High  glucose  (hyperglycemia)  

Low  melatonin  Insulin  resistance  

High  Testosterone  (women)  High  Estrogen  (men)  

 

Physical  Signs  Associated  with  Dysautonomia  

•  Low  or  High  body  temperature  •  Lack  of  sweat  or  too  much  sweat  •  Dry  sand  paper  skin  •  Abnormal  pupillary  response  •  Poor  skin  turgor  •  Low  blood  pressure  (orthosta4c  hypotension)  •  Abnormal  beat  to  beat  variability  •  Ridges  or  bite  marks  on  the  sides  of  the  tongue    •  Hyperlaxity  in  joints    Rubin  LS.  PaCerns  of  pupillary  dilata2on  and  constric2on  in    psycho2c  adults  and  au2s2c  children.  1961   64

Orthosta4c  Hypotension  •  Normally  when  a  person  goes  from  lying  down  to  standing,  

the  systolic  blood  pressure  should  elevate  4-­‐10  mm  Hg.    •  In  hypoadrenia,  the  systolic  blood  pressure  from  lying  to  

standing  will  either  stay  the  same  or  drop.  This  systolic  drop  is  usually  between  5  to  10  mm.  Hg.,  but  some4mes  as  much  as  30-­‐40  points,  known  as  the  Ragland  effect,  or  postural  hypotension,  and  which  is  reported  in  over  90%  of  hypoadrenic  persons.    

•  Blood  pressure  should  always  be  checked  in  three  posi4ons:  siyng,  then  lying,  then  standing.  From  recumbence  to  standing,  the  systolic  blood  pressure  should  rise  4-­‐10  points.  

•   If  the  blood  pressure  drops,  suspect  func4onal  hypoadrenia.  

Lab  Op4ons  HPA  Axis  •  Blood  Sugar  •  Insulin  •  Cor4sol  •  Aldosterone  •  DHEA  •  Testosterone  •  Estrogen/Progesterone  •  ACTH  and  ACTH  s4m  test  •  Cholesterol  •  TSH,  T3,  T4  

Stress and the Autonomic Nervous System

©2012 True Health Medical Center

Anju Usman, M.D. True Health Medical Center.

Page # 12

Evalua4on  of  Stress  Symptoms  

•  Physical  exam  findings  •  Non-­‐invasive  tests  

– Heart  rate  variability  – Salivary  DHEA  and  cor4sol  – Cutaneous  sweat  patches  for  neural  and  immune  biomarkers    

– Urinary  catecholamenines  – Tilt  table  tes4ng  

Mayo  /  Medical  Center  Autoimmune  Dysautonomia  Evalua4on  

 GANGLIONIC ACETYLCHOLINE RECEPTOR (ALPHA3) AUTOANTIBODY NEURONAL VOLTAGE-GATED POTASSIUM CHANNEL (VGKC) AUTOANTIBODY N-TYPE CALCIUM CHANNEL ANTIBODY P/Q-TYPE CALCIUM CHANNEL ANTIBODY ACETYLCHOLINE RECEPTOR (MUSCLE ACHR) BINDING ANTIBODY GLUTAMIC ACID DECARBOXYLASE (GAD65) ANTIBODY ASSAY ANTINEURONAL NUCLEAR ANTIBODY-TYPE 1

Special  Environmental  and  Dietary  Considera4ons  

•  Avoid  chemical  endocrine  disruptors  especially  pes4cides,  plas4cizers,  BPA,  phthalates,  organophosphates…  

•  Low  glycemic,  Limit  sugar  and  carbs  •  Protein  and  fiber  with  meals  and  snacks  •  3  meals,  3  snacks  per  day  •  Bed4me  snack  with  protein  •  Limit  hormones  and  excitotoxins  in  food  •  Exercise  

Address  HPA  Axis  •  Adaptogenic  Herbs  

–  Panax  Ginseng  –  Siberian  Ginseng  (eleutherococcus)  –  Ashwagandha  (withania  somnifera)  –  Rhodiola  –  Holy  Basil  (tulsi)  

•  Other  –  Vitamin  B5/Pantothenic  Acid  –  Licorice/Glycyrrhizin  (increases  cor4sol)  –  Phospha4dyl  Serine(lowers  cor4sol)  –  Glandulars  (Adrenal  Cor4cal  Extract)  –  Hormones  (Pregnenolone,  Progesterone,  DHEA)  

•  Gaffny.    Panax  ginseng  and  Eleutherococcus  sen2cosus  may  exaggerate  an  already  exis2ng  biphasic  response  to  stress  via  inhibi2on  of  enzymes  which  limit  the  binding  of  stress  hormones  to  their  receptors.  2001  

 •  Spasov.  A  double-­‐blind  placebo  controlled  pilot  study  of  the  s2mula2ng  and  adaptogenic  effect  of  Rholiola  rosea  on  the  stress  induced  fa2gue  of  students…2000  

Support  Blood  Sugar  Regula4on  

•  Chromium  •  Vanadium  •  Gymnema  sylvestre  •  Bi]er  melon  •  Cinnamon  •  Alpha  Lipoic  Acid  •  Carni4ne  •  Omega  3  EFA  

Stress and the Autonomic Nervous System

©2012 True Health Medical Center

Anju Usman, M.D. True Health Medical Center.

Page # 13

Address  Dysautonomia  

•  Down-­‐regulate  Sympathe4c    – Down  regulate  excitatory  neurotransmi]ers  

•  NE  and  Epinephrine  (adaptogens)  •  Glutamate  (meman4ne,  Mg,  Li)  

•  Up-­‐regulate  Parasympathe4c  •  Acetylcholine    (phospha4dylcholine,  serine)  •  Acetylcholinesterase  Inhibitors    (galantamine)  

•  Salt  •  Beta  blockers  

Address  Neuroendocrine  System  

•  Hippocampus  – Secre4n  (nasal,  transdermal,  IV)  – Phospha4dyl  Serine  – Lower  Cor4sol  

•  Amygdala    – Oxytocin  (nasal,  oral)  

•  Blood-­‐Brain-­‐Barrier  – Vit  A,  Vit  E,  Saccromyces  boulardii  

Posi4ve  Ways  of  Handling  Stress  •  Breathing  (www.heartmath.org)  •  Medita4on/Prayer/Quiet  Time  •  Exercise-­‐  low  impact  •  Singing,  Chan4ng  •  Healthy  Diet  and  Bed4me  Rou4nes  •  Improving  self  esteem/confidence  (aytude)  •  Sleeping  •  Just  Relaxing  and  Slowing  Down  •  EFT  (emo4onal  freedom  technique)  •  Biomedical  Interven4ons      

Thank  You!  And  don’t  forget  to  take  a  deep  

breath!!  www.truehealthmedical.com      

 


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