Table 1 Previously reported candidate gene studies showing significant association with SZ cohorts from Indian population

From: Attempts to replicate genetic associations with schizophrenia in a cohort from north India

(A) Markers associated with schizophrenia

Gene

Marker

p-value

# of cases/controls

Reference

IL1A

rs1800587

0.03

488/186

Srinivas et al.66

IL16

rs1800795

0.04

492/488

 

TNFA

rs361525

0.02

494/486

 

PPP3CC

rs7430

0.001

1017/1073

John et al.40

XRCC1

rs25487

0.003

260/263

Sujitha et al.67

GRM7

rs3864075

0.004

840/876

Jajodia et al.37

NRG1

rs17603876

0.8 × 10 4

840/876

 

STT3A

rs548181

0.1 × 10−4

840/876

 

DNMT1

rs2114724

0.02

330/302

Saradalekshmi et al.68

DNMT1

rs2228611

0.002

330/302

 

SLC6A3

rs403636

0.06

1007/1019

Kukshal et al.69

DBH

rs6271

0.004

1007/1019

 

SLC18A2

rs363399

0.05

1007/1019

 

SLC18A2

rs363338

0.07

1007/1019

 

SLC18A2

rs10082463

0.07

1007/1019

 

SLC18A2

rs363285

0.09

1007/1019

 

COMT

rs933271

0.06

1007/1019

 

COMT

rs4680

0.05

1007/1019

 

COMT

rs9332377

0.02

1007/1019

 

NRG1

rs35753505

0.04

1007/1009

Kukshal et al.38

NRG1

rs4733263

0.04

1007/1009

 

NRG1

rs6994992

0.03

1007/1009

 

NRG1

420M9-1355

0.02

1007/1009

 

NRG1

rs1354336

0.01

1007/1009

 

NRG1

rs10093107

0.008

1007/1009

 

NRG1

rs3924999

0.02

1007/1009

 

NRG1

rs11780123

0.01

1007/1009

 

COMT

rs362204

0.028

215/215

Srivastava et al.70

COMT

rs4680

0.029

254/225

Gupta et al.71

SLC6A4

5HTTLPR

0.08

243/243

Vijayan et al.72

SLC6A4

rs20066713

0.001

243/243

 

SLC6A4

STin2

0.001

243/243

 

DRD3

rs10934254

0.03

141 trios

Talkowski et al.73

SYNGR1

rs909685

0.01

193/107

Verma et al.36

SYNGR1

rs715505

0.00007

193/107

 

SYNGR1

rs6001566

0.03

193/107

 

NOTCH4

197/198(GAAG)50

0.06

182 trios

Prasad et al.74

NOTCH4

(CTG)6

0.02

182 trios

 

Ch 22 CAG repeat

22CH3

 < 0.02

108/129

Saleem et al.75

(B) Markers associated with tardive dyskinesia and cognitive domains

  

TD*

Cognitive domain**

Reference

Gene

Marker

(n)

p-value

(n)

p-value

John et al.40

SCN1A

rs10497275

91/161

0.004

_

_

 

GCLM

rs17881908

91/161

0.02

_

_

 

MTHFR

rs4846049

91/161

0.02

152/292

Spatial ability = 0.01

 

PIP4K2A

rs10734041

91/161

0.03

152/292

Face memory = 0.009; emotion = 0.03

 

CLDN5

rs756654

91/161

0.04

152/292

_

 

MAOB

rs2072745

_

_

152/292

Spatial ability = 0.02

 

NRG1

rs17731664

_

_

152/292

Abstraction and mental flexibility = 0.04

 

COMT

rs165728

_

_

152/292

Spatial memory = 0.05; emotion = 0.05

 

CACNA1b

rs9414688

_

_

152/292

Emotion = 0.02; working memory = 0.002; abstraction and mental flexibility = 0.001

 

SCN1A

rs1813502

_

_

152/292

Spatial ability = 0.03

 

DISC1

rs16856322

_

_

152/292

Sensory motor and emotional processing = 0.03; attention = 0.03

 

CHGB

rs2821

_

_

152/292

Working memory = 0.003

 

IL1RN

rs9005

_

_

152/292

Spatial memory = 0.03; attention = 0.003; abstraction and mental flexibility = 0.05

 

EGR3

rs11136094

_

_

152/292

Emotion = 0.03; working memory = 0.001

 

SYN2

rs17036056

_

_

152/292

Emotion = 0.005

 

GCLM

rs178819088

91/161

0.02

_

_

 

NRG1

rs35753505

_

_

116/170

Emotion = 0.0331

Kukshal et al.38

NRG2

rs6994992

_

_

116/171

Attention = 0.047

 

SLC18A2

rs363285

_

_

 

TMT b task = 0.025

 
  1. *n = positives/negatives for TD
  2. **n = cases/controls for cognition