SCZ-associated variant effects on L5 pyr cell NN activity and delta osc. (Maki-Marttunen et al 2018)

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Accession:237469
" … Here, using computational modeling, we show that a common biomarker of schizophrenia, namely, an increase in delta-oscillation power, may be a direct consequence of altered expression or kinetics of voltage-gated ion channels or calcium transporters. Our model of a circuit of layer V pyramidal cells highlights multiple types of schizophrenia-related variants that contribute to altered dynamics in the delta frequency band. Moreover, our model predicts that the same membrane mechanisms that increase the layer V pyramidal cell network gain and response to delta-frequency oscillations may also cause a decit in a single-cell correlate of the prepulse inhibition, which is a behavioral biomarker highly associated with schizophrenia."
Reference:
1 . Mäki-Marttunen T, Krull F, Bettella F, Hagen E, Næss S, Ness TV, Moberget T, Elvsåshagen T, Metzner C, Devor A, Edwards AG, Fyhn M, Djurovic S, Dale AM, Andreassen OA, Einevoll GT (2019) Alterations in Schizophrenia-Associated Genes Can Lead to Increased Power in Delta Oscillations. Cereb Cortex 29:875-891 [PubMed]
Model Information (Click on a link to find other models with that property)
Model Type: Neuron or other electrically excitable cell;
Brain Region(s)/Organism: Neocortex;
Cell Type(s): Neocortex L5/6 pyramidal GLU cell;
Channel(s): Ca pump; I A, slow; I h; I K; I K,Ca; I K,leak; I L high threshold; I M; I Na,p; I Na,t; I T low threshold;
Gap Junctions: Gap junctions;
Receptor(s): AMPA; NMDA; Gaba;
Gene(s): Cav1.2 CACNA1C; Cav1.3 CACNA1D; Cav3.3 CACNA1I; HCN1; Kv2.1 KCNB1; Nav1.1 SCN1A; PMCA ATP2B2;
Transmitter(s): Glutamate; Gaba;
Simulation Environment: NEURON; Python; LFPy;
Model Concept(s): Schizophrenia; Oscillations;
Implementer(s): Maki-Marttunen, Tuomo [tuomo.maki-marttunen at tut.fi];
Search NeuronDB for information about:  Neocortex L5/6 pyramidal GLU cell; AMPA; NMDA; Gaba; I Na,p; I Na,t; I L high threshold; I T low threshold; I K; I K,leak; I M; I h; I K,Ca; I A, slow; Ca pump; Gaba; Glutamate;
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scznet
haymod
models
morphologies
README.html
Ca_HVA.mod *
Ca_LVAst.mod *
CaDynamics_E2.mod *
epsp.mod *
Ih.mod *
Im.mod *
K_Pst.mod *
K_Tst.mod *
Nap_Et2.mod *
NaTa_t.mod *
SK_E2.mod *
SKv3_1.mod *
calcifcurves.py
calcifcurves_comb.py
collectppispthrcoeff300_relthr.py
collectscalings_cs.py
collectthresholddistalamps300.py
copydata.sh
drawppiranges.py
drawsubthppiamps_comb.py
findsubthppi300_relthr.py
findsubthppi300_relthr_comb_one.py
findthresholddistalamp300_control.py
findthresholddistalamps300.py
findthresholddistalamps300_comb.py
mutation_stuff.py *
mutation_stuff.pyc
mutindexlist.sav
mytools.py *
mytools.pyc
ppi300_relthr_comb_recordSK.py
presaved.tar.gz
runcontrol.py
savesynapselocations300.py
scalemutations_cs.py
testsubthppi300_comb_fixed.py
                            
from neuron import h
import matplotlib
matplotlib.use('Agg')
import numpy
from pylab import *
import mytools
import pickle
import time
import sys
import random

random.seed(1)

v0 = -80
ca0 = 0.0001
proximalpoint = 400
distalpoint = 620
BACdt = 5.0
fs = 8
ITERS = 20
tstop = 11000.0

unpicklefile = open('thresholddistalamp300_control.sav', 'r')
unpickledlist = pickle.load(unpicklefile)
unpicklefile.close()
Nsyns = unpickledlist[1]
maxSynsPerSeg = unpickledlist[2]
maxLens = [1300,1185]

unpicklefile = open('synlocs300.sav', 'r')
unpickledlist = pickle.load(unpicklefile)
unpicklefile.close()
synlocsAll = unpickledlist[3]

import mutation_stuff
MT = mutation_stuff.getMT()
defVals = mutation_stuff.getdefvals()
keyList = defVals.keys()
for idefval in range(0,len(keyList)):
  if type(defVals[keyList[idefval]]) is not list:
    defVals[keyList[idefval]] = [defVals[keyList[idefval]], defVals[keyList[idefval]]] #make the dictionary values [somatic, apical]
updatedVars = ['somatic','apical','basal'] # the possible classes of segments that defVals may apply to
whichDefVal = [0,1,0]                      # use the defVal[0] for somatic and basal segments and defVal[1] for apical segments
unpicklefile = open('scalings_cs.sav', 'r')
unpickledlist = pickle.load(unpicklefile)
unpicklefile.close()
theseCoeffsAllAll = unpickledlist[0]
theseMutValsAllAll = unpickledlist[2]

gsAllAll = []

for icell in range(0,1):
  synlocs = synlocsAll[icell]
  gsAll = []
  morphology_file = "morphologies/cell"+str(icell+1)+".asc"
  biophys_file = "models/L5PCbiophys3.hoc"
  template_file = "models/L5PCtemplate.hoc"

  theseCoeffsAll = theseCoeffsAllAll[icell]
  h("""
load_file("stdlib.hoc")
load_file("stdrun.hoc")
objref cvode
cvode = new CVode()
cvode.active(1)
load_file("import3d.hoc")
objref L5PC
load_file(\""""+biophys_file+"""\")
load_file(\""""+template_file+"""\")
L5PC = new L5PCtemplate(\""""+morphology_file+"""\")
objref st1
st1 = new IClamp(0.5)
L5PC.soma st1
objref vsoma, vdend, recSite, vdend2, isoma, cadend, cadend2, casoma
vsoma = new Vector()
casoma = new Vector()
vdend = new Vector()
cadend = new Vector()
objref sl,ns, tvec, syns["""+str(Nsyns)+"""]
tvec = new Vector()
sl = new List()
double siteVec[2]
sl = L5PC.locateSites("apic","""+str(distalpoint)+""")
maxdiam = 0
for(i=0;i<sl.count();i+=1){
  dd1 = sl.o[i].x[1]
  dd = L5PC.apic[sl.o[i].x[0]].diam(dd1)
  if (dd > maxdiam) {
    j = i
    maxdiam = dd
  }
}
siteVec[0] = sl.o[j].x[0]
siteVec[1] = sl.o[j].x[1]
print "distalpoint gCa_HVA: ", L5PC.apic[siteVec[0]].gCa_HVAbar_Ca_HVA
print "distalpoint gCa_LVA: ", L5PC.apic[siteVec[0]].gCa_LVAstbar_Ca_LVAst
access L5PC.apic[siteVec[0]]
access L5PC.soma
cvode.record(&v(0.5),vsoma,tvec)
cvode.record(&cai(0.5),casoma,tvec)
access L5PC.apic[siteVec[0]]
cvode.record(&v(siteVec[1]),vdend,tvec)
cvode.record(&cai(siteVec[1]),cadend,tvec)
""")
  for istim in range(0,Nsyns):
    h("""
siteVec[0] = """+str(synlocs[istim][0])+"""
siteVec[1] = """+str(synlocs[istim][1])+"""
access L5PC.apic[siteVec[0]]
L5PC.apic[siteVec[0]] {
  syns["""+str(istim)+"""] = new AlphaSynapse(siteVec[1])
  syns["""+str(istim)+"""].e = 0
  syns["""+str(istim)+"""].tau = 5
  syns["""+str(istim)+"""].onset = 10000 + """+str(BACdt)+"""
}
""")

  styles = ['g-','g-','g-','g-','g-','g-','g-','g-','g-']
  #cols = ['#aaffaa','#aaffaa','#66ff66','#66aaaa','#00aaaa','#00aaaa']
  #cols = ['#00aaaa','#00bb77','#11cc44','#11dd11','#55ee00','#99dd00']
  cols = ['#00aaaa','#11cc44','#55ee00','#bbaa00','#ee6600','#ff0000', '#aa00aa','#772277','#333333']
  #yplus = [1, 2, 3, 4, 5, 6, -1, -2, -3]
  #yplus = [x+3 for x in yplus]
  yplus = [0, 0, 0, 0, 0, 0, 0, 0, 0]
  coeffCoeffs = [[0.25,0],[0.125,0],[0.5,0],[0.5,1.0/3],[0.5,2.0/3],[0.5,1.0],[-0.25,0],[-0.125,0],[-0.5,0]]

  counter = -1
  
  for igene in range(0,len(MT)):
   gsThisGene = []
   for imut in range(0,len(MT[igene])):
    gsThisMut = []
    nVals = len(MT[igene][imut])*[0]
    thesemutvars = []
    theseCoeffs = theseCoeffsAll[igene][imut]
    for imutvar in range(0,len(MT[igene][imut])):
      thesemutvars.append(MT[igene][imut][imutvar][0])
      if type(MT[igene][imut][imutvar][1]) is int or type(MT[igene][imut][imutvar][1]) is float:
        MT[igene][imut][imutvar][1] = [MT[igene][imut][imutvar][1]]
      nVals[imutvar] = len(MT[igene][imut][imutvar][1])
    cumprodnVals = cumprod(nVals)
    allmutvars = cumprodnVals[len(MT[igene][imut])-1]*[thesemutvars]
    allmutvals = []
    for iallmutval in range(0,cumprodnVals[len(MT[igene][imut])-1]):
      allmutvals.append([0]*len(thesemutvars))
    for iallmutval in range(0,cumprodnVals[len(MT[igene][imut])-1]):
      for imutvar in range(0,len(MT[igene][imut])):
        if imutvar==0:
          allmutvals[iallmutval][imutvar] = MT[igene][imut][imutvar][1][iallmutval%nVals[imutvar]]
        else:
          allmutvals[iallmutval][imutvar] = MT[igene][imut][imutvar][1][(iallmutval/cumprodnVals[imutvar-1])%nVals[imutvar]]
      
    for iallmutval in range(0,cumprodnVals[len(MT[igene][imut])-1]):
      counter = counter + 1                                                                                                                                                               
      if len(sys.argv) > 1 and int(float(sys.argv[1])) != counter:
        continue
      gsThisMutVal = []
      close("all")
      f, axarr = plt.subplots(2, 2)
      maxCac = 0
      maxCadc = 0
      #for iter in [2, 5, 8, -1]:
      for iter in [0, 2, 5, 6, 8, -1]:
        gsThisIter = []
        if iter >= 0:
          thisCoeff = coeffCoeffs[iter][0]*theseCoeffs[iallmutval] + coeffCoeffs[iter][1]*(1.0 - 0.5*theseCoeffs[iallmutval])
        else:
          thisCoeff = 0
        if iter == -1 and (igene > 0 or imut > 0 or iallmutval > 0):
          continue # do the control only once!
        print "iter="+str(iter)+", thisCoeff="+str(thisCoeff)
          
        mutText = ""
        for imutvar in range(0,len(MT[igene][imut])):
          if imutvar > 0 and imutvar%2==0:
            mutText = mutText+"\n"
          mutvars = allmutvars[iallmutval][imutvar]
          mutvals = allmutvals[iallmutval][imutvar]
          #print "mutvals:"
          #print mutvals
          #time.sleep(3)
          if type(mutvars) is str:
            mutvars = [mutvars]
          mutText = mutText + str(mutvars) + ": "
          #if type(mutvals) is list:
          #  mutvals = max([mutvals[max(range(len(mutvals)), key=lambda i: mutvals[i])],-mutvals[min(range(len(mutvals)), key=lambda i: mutvals[i])]])
          for kmutvar in range(0,len(mutvars)):
            mutvar = mutvars[kmutvar]
            if mutvar.find('offm') > -1 or mutvar.find('offh') > -1 or mutvar.find('ehcn') > -1:
              newVal =  [x+mutvals*thisCoeff for x in defVals[mutvar]]
              if mutvals >= 0 and kmutvar==0:
                mutText = mutText + "+" + str(mutvals) +" mV"
              elif kmutvar==0:
                mutText = mutText  + str(mutvals) +" mV"
            else:
              newVal = [x*(mutvals**thisCoeff) for x in defVals[mutvar]]
              if kmutvar==0:
                mutText = mutText + "*" + str(mutvals)
            if kmutvar < len(mutvars)-1:
              mutText = mutText + ", "
            #else:
            #  mutText = mutText + "\n"
            if mutvar.find('_Ih') > -1:
              updateThese = [1,1,1]
            elif mutvar.find('_Ca_HVA') > -1 or mutvar.find('_Ca_LVAst') > -1 or mutvar.find('_SKv3.1') > -1 or mutvar.find('_Ca_HVA') > -1 or mutvar.find('_SK_E2') > -1 or mutvar.find('_NaTa_t') > -1 or mutvar.find('_CaDynamics_E2') > -1:
              updateThese = [1,1,0]
            elif mutvar.find('_K_Pst') > -1 or mutvar.find('_K_Tst') > -1 or mutvar.find('_Nap_Et2') > -1:
              updateThese = [1,0,0]
            elif mutvar.find('_Im') > -1:
              updateThese = [0,1,0]
            else:
              print "Error: str=" + str(mutvar)
              updatedThese = [0,0,0]
            for iupdated in range(0,3):
              if updateThese[iupdated]:
                print """forsec L5PC."""+str(updatedVars[iupdated])+""" {
"""+mutvar+""" = """+str(newVal[whichDefVal[iupdated]])+"""
}"""
                h("""forsec L5PC."""+str(updatedVars[iupdated])+""" {
"""+mutvar+""" = """+str(newVal[whichDefVal[iupdated]])+"""
}""")
        print mutText
        thisCa = h.L5PC.soma[0].minCai_CaDynamics_E2
        if icell==0:
          nextgs = [0.00,0.003,0.0015]
        if icell==1:
          nextgs = [0.00,0.06,0.03]
        hasSpiked = 0
        hasErred = 0
        for iterg in range(0,ITERS+2):
            thisg = nextgs[min(iterg,2)]
            h("st1.amp = "+str(thisg))
            for istim in range(0,Nsyns):
              h("syns["+str(istim)+"].gmax = "+str(thisg))
            h("""
tstop = """+str(tstop)+"""
cai0_ca_ion = """+str(thisCa)+"""
v_init = """+str(v0)+"""
st1.amp = 0
st1.del = 200
st1.dur = 10
""")
            h.init()
            try:
              h.run()
            except RuntimeError:
              hasErred = 1
              print "Too large g!"
              if iterg == 1:
                nextgs = [0.0,4.0,3.0]
                continue
              else:
                nextgs = [nextgs[0],nextgs[2],nextgs[0]+nextgs[2]]
              continue
  
            times=np.array(h.tvec)
            Vsoma=np.array(h.vsoma)
            spikes = mytools.spike_times(times,Vsoma,-35,-45)
            nSpikes1 = len(spikes)
            hasSpiked = hasSpiked or (nSpikes1 > 0)
  
            print "iterg="+str(iterg)+" done, g="+str(thisg)+", "+str(nSpikes1)+" spikes"
            if iterg==0 and nSpikes1 > 0:
              print "Even zero g causes spiking!! igene="+str(igene)+", imut="+str(imut)+", iallmutval="+str(iallmutval)+", iter="+str(iter)
              nextgs = [0.0,0.0,0.0]
              break
            if iterg==1 and not hasSpiked:
              print "No spiking with iterg==1, adding 25% to the current! igene="+str(igene)+", imut="+str(imut)+", iallmutval="+str(iallmutval)
              nextgs = [nextgs[0],2.0*nextgs[1],1.25*nextgs[min(iterg,2)]]
              continue

            if iterg>=2 and iterg < ITERS+2:
              if nSpikes1 > 0:
                nextgs = [nextgs[0],nextgs[2],0.5*nextgs[0]+0.5*nextgs[2]]
              else:
                nextgs = [nextgs[2],nextgs[1],0.5*nextgs[1]+0.5*nextgs[2]]

        #Print the parameters and their default values:
        for idefval in range(0,len(defVals.keys())):
          thisdefval = defVals.keys()[idefval]
          if thisdefval.find('_Im') > -1:
            h('print "L5PC.apic[0].'+thisdefval+' = ", L5PC.apic[0].'+thisdefval+', "Default = ", '+str(defVals[thisdefval][1]))
            #) #+" (def="+str(defVals[thisdefval])+")"
          else:
            h('print "L5PC.soma[0].'+thisdefval+' = ", L5PC.soma[0].'+thisdefval+', "Default = ", '+str(defVals[thisdefval][0]))
            #h('print L5PC.soma[0]."+thisdefval) #+" (def="+str(defVals[thisdefval])+")"                       
  
        #Restore default values:
        for imutvar in range(0,len(MT[igene][imut])):
          mutvars = allmutvars[iallmutval][imutvar]
          mutvals = allmutvals[iallmutval][imutvar]
          if type(mutvars) is str:
            mutvars = [mutvars]
          for kmutvar in range(0,len(mutvars)):
            mutvar = mutvars[kmutvar]
            newVal = defVals[mutvar]
            if mutvar.find('_Ih') > -1:
              updateThese = [1,1,1]
            elif mutvar.find('_Ca_HVA') > -1 or mutvar.find('_Ca_LVAst') > -1 or mutvar.find('_SKv3.1') > -1 or mutvar.find('_Ca_HVA') > -1 or mutvar.find('_SK_E2') > -1 or mutvar.find('_NaTa_t') > -1 or mutvar.find('_CaDynamics_E2') > -1:
              updateThese = [1,1,0]
            elif mutvar.find('_K_Pst') > -1 or mutvar.find('_K_Tst') > -1 or mutvar.find('_Nap_Et2') > -1:
              updateThese = [1,0,0]
            elif mutvar.find('_Im') > -1:
              updateThese = [0,1,0]
            else:
              print "Error: str=" + str(mutvar)
              updatedThese = [0,0,0]
            for iupdated in range(0,3):
              if updateThese[iupdated]:
                print """forsec L5PC."""+str(updatedVars[iupdated])+""" {
"""+mutvar+""" = """+str(newVal[whichDefVal[iupdated]])+"""
}"""
                h("""forsec L5PC."""+str(updatedVars[iupdated])+""" {
"""+mutvar+""" = """+str(newVal[whichDefVal[iupdated]])+"""
}""")
        gsThisMutVal.append(nextgs[2])
        picklelist = [theseCoeffsAll,gsThisMutVal,MT]
        file = open('thresholddistalamp300_cs'+str(icell)+'_'+str(counter)+'_tmp.sav', 'w')
        pickle.dump(picklelist,file)
        file.close()
  
      gsThisMut.append(gsThisMutVal[:])
      picklelist = [theseCoeffsAll,gsThisMutVal,MT]
      file = open('thresholddistalamp300_cs'+str(icell)+'_'+str(counter)+'.sav', 'w')
      pickle.dump(picklelist,file)
      file.close()
    gsThisGene.append(gsThisMut[:])
   gsAll.append(gsThisGene[:])
  gsAllAll.append(gsAll[:])
  
#picklelist = [theseCoeffsAllAll,gsThisAllAll,MT]
#file = open('thresholddistalamp300_cs'+str(icell)+'_'+str(counter)+'.sav', 'w')
#pickle.dump(picklelist,file)
#file.close()
  

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