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Table 2 Genotype and allele frequencies of the BDNF Val66Met polymorphism (N = 50)a

From: Evaluation of plasma brain-derived neurotrophic factor levels and self-perceived cognitive impairment post-chemotherapy: a longitudinal study

 

Population, n (%)

Pooled Asians, n (%)

Chinese

Malay

Indiana

Othersb

(n=40)

(n=4)

(n=5)

(n=1)

(n=50)

Genotype frequency

 GG (Val/Val)

11 (27.5)

1 (25.0)

2 (40.0)

0 (0.0)

14 (28.0)

 GA (Val/Met)

18 (45.0)

3 (75.0)

2 (40.0)

1 (100.0)

24 (48.0)

 AA (Met/Met)

11 (27.5)

0 (0.0)

1 (20.0)

0 (0.0)

12 (24.0)

Allele frequency

 G (Val) allele

40 (50.0)

5 (62.5)

6 (60.0)

1 (50.0)

52 (52.0)

 A (Met) allele

40 (50.0)

3 (37.5)

4 (40.0)

1 (50.0)

48 (48.0)

  1. aGenotype data for one patient is not available
  2. bOthers include 1 Filipino