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Table 2 Clinical characteristics of patients carrying the new non well-described variants

From: New variants of alpha-1-antitrypsin: structural simulations and clinical expression

Patient ID

Sex

Age

[AAT] (mg/dL)

AAT polymers (ug/ml)

AAT polymers%

Genotype

Smoking status

Pulmonary/hepatic status

Lung function (%)

Liver enzymes (IU/L)

ELF

         

FVC

FEV1

FEV1/FVC

AST

ALT

GGT

 

Patient 1

Female

49

78.1

3.65

0.47

G95Afs18* – M

Former smoker

– No evidence of liver disease

93

93

81

27

16

8.25

Patient 2

Male

40

76.3

2.52

0.30

V210E + H16H – M

Never smoker

– Mild hepatic steatosis

– Elevated hepatic enzymes

– No evidence of lung disease

93

101

87

72

108

98

8.67

Patient 3

Female

23

66.8

3.44

0.52

V210E + H16H – M

Never smoker

– Elevated hepatic enzymes

– No evidence of lung disease

99

102

107

20

40

55

8.81

Patient 4

Male

58

98.4

5.20

0.53

N247S – M

Former smoker

– Mild hepatic steatosis and hepatomegaly

– Normal hepatic enzymes

– No evidence of lung disease

121

124

81

32

43

35

8.89

Patient 5

Male

45

19.8

4.08

2.06

S + D341H – Z

Former smoker

– Mild COPD, Bronchiectasis and recurrent pneumonia

– No evidence of liver disease

98.6

81

62.9

16

18

17

7.62

Patient 6

Male

64

69.8

2.44

0,35

S + L407F + K418I – M

Never smoker

– Severe COPD

Alcoholic liver disease

65.8

45.6

52

28

47

106

NA

  1. AAT alpha-1 antitrypsin, AST aspartate-aminotransferase, ALT alanine-aminotransferase, GGT gamma-glutamyl transferase, ELF enhanced liver fibrosis, NA data not available, FVC forced vital capacity, FEV1 forced expiratory volume in the first second, COPD chronic obstructive pulmonary disease
  2. Normal ranges in serum: AAT: 116–2.00 mg/dL; AST: female 10 to 35 IU/L and male 10 to 50 IU/L; ALT: female 7 to 35 IU/L and male 8 to 50 IU/L; GGT: female 6–38 IU/L and male 9–55 IU/L; ELF score < 7.7: none to mild liver fibrosis, >  = 7.7 to < 9.8: moderate and >  = 9.8 sever