1 Abstract

1.1 Background

The prevalence of heart failure (HF) is increased in diabetic patients. Several studies confirmed the prognostic role of ST2 and Galectin-3 (Gal-3) in HF patients, but the relationship between diabetes mellitus (DM) along with its complications and the new biomarkers is still uncertain.

1.2 Methods

88 subjects with decompensated heart failure (NYHA classes III-IV) were enrolled, with a mean age of 69.82 ± 9.5 years, 61.7% of which were men and 47.9% of them with previous DM. All patients were evaluated both clinically and echocardiographically. The entire cohort had serum concentrations of ST2, Gal-3 and NT-proBNP measured upon admission. Patients with DM were divided into two groups: those with DM microvascular complications (retinopathy, nephropathy or polyneuropathy - 58.9%) or without- 41.1%.

1.3 Results

Mean left ventricular ejection fraction (LVEF) was 38.84 ± 11.3%, without significant differences between the two groups (p-NS). Concerning HF biomarkers, the following mean values were obtained: ST2 - 46.32 ± 25.8 ng/ml, Gal 3-15.19 ± 6.7 ng/ml, NT-pro BNP - 3493.04 ± 3884.8 pg/ml. There were no statistically significant differences between patients with or without DM: ST2 : 47.51 ± 28.7ng/ml vs 44.89 ± 23.1 ng/ml; Gal-3: 15.25 ± 7.7ng/ml vs 15.07 ± 5.7ng/ml; NT-proBNP: 3857.42 ± 3844.2 pg/ml vs 3104.28 ± 3940.4 pg/ml. When comparing the two groups of diabetic subjects, only Gal-3 values were found to be consistently higher in subjects with microvascular complications: 16.23 ± 4.9 ng/ml vs 13.74 ± 10.4 ng/ml (p=0.005); ST2 : 53.21 ± 31.9ng/ml vs 39.5 ± 23.3 ng/ml (p-NS); NT-proBNP : 4364.9 ± 4213.9 pg/ml vs 3188.96 ± 3350.0 pg/ml (p=NS). ST 2 levels correlated significantly with NT-proBNP levels (r=0.24; p=0.03), hypocholesterolemia (r= 0.22; p=0.048) and GFR (r=-0.22) in both groups. There was no direct correlation between ST2 levels and the NYHA class (p=0.334). Gal-3 levels also correlated well with LVEF value (r=0.22; p=0.048), NT-pro BNP levels (r=0.40; p < 0.0001) and NYHA class (p <0.0001).

Table 1. Summary of the most relevant paramenters in all groups of patients.

Factor

Levels

no

stage 3

stage 4-5

Total

Statistics

CKD

19 (30.2%)

36 (57.1%)

8 (12.7%)

63

Diabetes

11 (57.9%)

15 (41.7%)

4 (50.0%)

30 (47.6%)

V=0.15 (p=0.513)

Diabetes complications

5 (45.5%)

11 (78.6%)

2 (50.0%)

18 (62.1%)

V=0.33 (p=0.206)

Group

control

8 (42.1%)

21 (58.3%)

4 (50.0%)

33 (52.4%)

V=0.17 (p=0.454)

DM w/ complic.

6 (31.6%)

4 (11.1%)

2 (25.0%)

12 (19.0%)

DM with complic.

5 (26.3%)

11 (30.6%)

2 (25.0%)

18 (28.6%)

Age (years)

Mean ±SD

67.63 ±9.79

71.89 ±9.89

73.50 ±9.3

70.81 ±9.88

1-way ANOVA: p=0.227

*M(R)

65 (51:90)

71 (45:88)

72 (63:88)

70 (45:90)

Sex

F

6 (31.6%)

17 (47.2%)

5 (62.5%)

28 (44.4%)

V=0.20 (p=0.295)

M

13 (68.4%)

19 (52.8%)

3 (37.5%)

35 (55.6%)

ST2 (ng/ml)

Mean ±SD

31.67 ±16.5

48.56 ±21.8

57.57 ±43.4

48.91 ±26.9

Kruskal-Wallis: p=0.389

*M(R)

32 (15:48)

50 (17:100)

33 (21:130)

41 (15:130)

Galectin-3 (ng/ml)

Mean ±SD

11.23 ±1.59

16.12 ±5.75

15.77 ±5.76

15.63 ±5.59

Kruskal-Wallis: p=0.366

*M(R)

12.1 (9.4:12.2)

17.6 (7.2:27)

14 (9.9:26)

14 (7.2:27)

NT-proBNP (pg/ml)

Mean ±SD

2112.72 ±2197.9

3624.18 ±2845.6

4877.88 ±4998.0

3333.05 ±3120.5

Kruskal-Wallis: p=0.087

*M(R)

1088.5 (283:7885)

3000 (168:13000)

3144 (675:15000)

2686 (168:15000)

Weight (kg)

Mean ±SD

85.83 ±19.8

79.50 ±16.9

72.50 ±19.4

80.47 ±18.3

1-way ANOVA: p=0.209

*M(R)

83.5 (45:120)

79.5 (50:121)

67.5 (45:107)

79.5 (45:121)

Height (m)

Mean ±SD

1.67 ±0.0777

1.67 ±0.0719

1.63 ±0.0719

1.66 ±0.0739

Kruskal-Wallis: p=0.396

*M(R)

1.68 (1.5:1.8)

1.68 (1.5:1.84)

1.62 (1.51:1.7)

1.68 (1.5:1.84)

BMI (kg/m²)

Mean ±SD

30.81 ±7.36

28.49 ±5.89

27.67 ±8.48

29.08 ±6.71

Kruskal-Wallis: p=0.505

*M(R)

28.96 (20:44.08)

28.91 (18.93:41.02)

26.6 (17.58:41.8)

28.91 (17.58:44.08)

Hemoglobin

Mean ±SD

12.98 ±1.86

12.43 ±1.95

11.64 ±2.33

12.50 ±1.98

Kruskal-Wallis: p=0.171

*M(R)

13.9 (9.5:15.5)

12.7 (7.4:16.5)

11.05 (8.7:15.4)

13 (7.4:16.5)

Hematocrite

Mean ±SD

37.66 ±7.65

37.69 ±5.66

36.16 ±7.26

37.49 ±6.43

Kruskal-Wallis: p=0.619

*M(R)

41 (13.9:45.5)

38.3 (23.4:48.9)

36.35 (25.8:45.1)

38.5 (13.9:48.9)

Cholesterol

Mean ±SD

166.84 ±59.5

156.17 ±43.7

132.43 ±66.7

156.37 ±52.1

Kruskal-Wallis: p=0.703

*M(R)

146 (103:317)

152.5 (92:316)

128.5 (9.43:204)

146 (9.43:317)

LDL

Mean ±SD

94.42 ±45.3

87.64 ±33.7

100.38 ±42.1

91.30 ±38.2

Kruskal-Wallis: p=0.605

*M(R)

80 (27:222)

82 (9:190)

107 (32:146)

82 (9:222)

HDL

Mean ±SD

48.11 ±33.1

42.42 ±15.1

35.75 ±9.25

43.29 ±21.7

Kruskal-Wallis: p=0.677

*M(R)

38 (27:166)

40.5 (22:94)

35.5 (19:50)

38 (19:166)

Triglycerides

Mean ±SD

124.58 ±74.1

116.53 ±50.8

134.25 ±61.1

121.21 ±59.3

Kruskal-Wallis: p=0.770

*M(R)

109 (51:361)

116.5 (53:310)

115 (69:258)

111 (51:361)

Uric acid

Mean ±SD

8.40 ±2.66

8.86 ±2.08

10.11 ±3.22

8.88 ±2.43

1-way ANOVA: p=0.253

*M(R)

7.87 (5.09:12.59)

9.19 (4.82:13.61)

9.71 (5.63:14.26)

8.53 (4.82:14.26)

TSH

Mean ±SD

2.19 ±1.84

1.87 ±1.58

5.53 ±8.85

2.34 ±3.08

Kruskal-Wallis: p=0.936

*M(R)

1.46 (0.73:6.04)

1.47 (0.01:7.6)

1.29 (0.73:18.8)

1.45 (0.01:18.8)

Glucose

Mean ±SD

121.16 ±48.6

113.00 ±37.4

123.88 ±42.2

116.84 ±41.2

Kruskal-Wallis: p=0.731

*M(R)

118 (66:293)

102 (76:272)

103 (90:192)

104 (66:293)

Urea

Mean ±SD

51.58 ±10.8

85.85 ±33.4

118.75 ±28.2

79.69 ±34.8

Kruskal-Wallis: p<0.001

*M(R)

56 (30:66)

80 (30:161)

120.5 (86:170)

69 (30:170)

Creatinin

Mean ±SD

0.977 ±0.16

1.51 ±0.294

2.52 ±0.996

1.48 ±0.621

Kruskal-Wallis: p<0.001

*M(R)

0.96 (0.65:1.33)

1.51 (0.96:2.11)

2.27 (1.76:4.89)

1.35 (0.65:4.89)

Creatinin clerence

Mean ±SD

75.24 ±14.0

43.69 ±8.34

23.86 ±9.13

50.69 ±20.3

Kruskal-Wallis: p<0.001

*M(R)

71.1 (50:97.8)

42.3 (30.4:59.8)

23.7 (9.2:41.8)

47.8 (9.2:97.8)

Iron

Mean ±SD

38.53 ±9.81

38.94 ±13.0

35.25 ±11.7

38.35 ±11.8

Kruskal-Wallis: p=0.698

*M(R)

40 (22:55)

40 (16:64)

36 (20:50)

40 (16:64)

Retinopathy

2 (15.4%)

5 (33.3%)

2 (40.0%)

9 (27.3%)

V=0.22 (p=0.447)

Nephopathy

2 (15.4%)

11 (73.3%)

2 (40.0%)

15 (45.5%)

V=0.54 (p=0.009)

PNP

3 (23.1%)

8 (53.3%)

2 (40.0%)

13 (39.4%)

V=0.28 (p=0.263)

AV

Mean ±SD

78.05 ±18.6

75.23 ±18.2

66.62 ±11.3

74.96 ±17.7

1-way ANOVA: p=0.311

*M(R)

75 (48:110)

75 (30:120)

71 (45:80)

75 (30:120)

Hypertension

nu

3 (15.8%)

14 (43.8%)

4 (50.0%)

21 (35.6%)

V=0.28 (p=0.062)

II

13 (68.4%)

9 (28.1%)

3 (37.5%)

25 (42.4%)

III

3 (15.8%)

9 (28.1%)

1 (12.5%)

13 (22.0%)

ACOMI

1 (5.3%)

2 (6.2%)

2 (25.0%)

5 (8.5%)

V=0.24 (p=0.195)

ICD

6 (31.6%)

7 (21.9%)

0

13 (22.0%)

V=0.24 (p=0.195)

VS1

Mean ±SD

57.26 ±10.7

57.94 ±11.0

64.25 ±12.0

58.55 ±11.1

Kruskal-Wallis: p=0.248

*M(R)

58 (38:77)

58 (40:76)

66.5 (39:77)

58.5 (38:77)

VS2

Mean ±SD

44.32 ±11.4

43.74 ±13.4

52.12 ±13.1

45.00 ±12.9

Kruskal-Wallis: p=0.229

*M(R)

40 (26:66)

44 (20:65)

54.5 (26:65)

46 (20:66)

E/A

<1

2 (22.2%)

6 (37.5%)

0

8 (28.6%)

V=0.26 (p=0.454)

≥1

5 (55.6%)

6 (37.5%)

1 (33.3%)

12 (42.9%)

≥2

2 (22.2%)

4 (25.0%)

2 (66.7%)

8 (28.6%)

Left atrium

Mean ±SD

48.11 ±7.5

46.91 ±6.85

54.12 ±7.85

48.21 ±7.44

1-way ANOVA: p=0.044

*M(R)

50 (28:60)

46 (35:60)

52.5 (45:64)

49 (28:64)

NYHA Class

II

5 (26.3%)

4 (12.1%)

1 (12.5%)

10 (16.7%)

V=0.18 (p=0.435)

III

8 (42.1%)

21 (63.6%)

6 (75.0%)

35 (58.3%)

IV

6 (31.6%)

8 (24.2%)

1 (12.5%)

15 (25.0%)

Iscaemic cardioathy

11 (57.9%)

20 (55.6%)

4 (50.0%)

35 (55.6%)

V=0.05 (p=0.931)

Fibrilation

12 (63.2%)

24 (66.7%)

8 (100.0%)

44 (69.8%)

V=0.25 (p=0.133)

HTP

9 (47.4%)

20 (62.5%)

5 (62.5%)

34 (57.6%)

V=0.14 (p=0.547)

COPD

6 (42.9%)

8 (24.2%)

4 (57.1%)

18 (33.3%)

V=0.26 (p=0.167)

Asthma

2 (11.8%)

1 (3.0%)

0

3 (5.3%)

V=0.19 (p=0.340)

VD

Mean ±SD

34.13 ±8.22

31.03 ±7.67

34.29 ±4.99

32.34 ±7.58

Kruskal-Wallis: p=0.172

*M(R)

34 (23:49)

30 (21:48)

33 (28:42)

31 (21:49)

PAPS

Mean ±SD

55.92 ±18.2

48.72 ±19.3

61.67 ±17.6

51.85 ±18.9

1-way ANOVA: p=0.368

*M(R)

52 (35:90)

50 (17:90)

60 (45:80)

50 (17:90)

MLHF

Mean ±SD

59.25 ±7.7

62.25 ±5.82

63.00 ±NA

60.57 ±6.85

1-way ANOVA: p=0.615

*M(R)

56.5 (50:70)

62 (52:72)

63 (63:63)

60 (50:72)

Diur

18 (94.7%)

31 (86.1%)

7 (87.5%)

56 (88.9%)

V=0.12 (p=0.620)

Nitr

10 (52.6%)

15 (41.7%)

6 (75.0%)

31 (49.2%)

V=0.22 (p=0.219)

IEC

12 (63.2%)

18 (50.0%)

3 (37.5%)

33 (52.4%)

V=0.16 (p=0.432)

Digoxin

10 (52.6%)

8 (22.2%)

1 (12.5%)

19 (30.2%)

V=0.33 (p=0.033)

Bet Bl

16 (84.2%)

29 (80.6%)

5 (62.5%)

50 (79.4%)

V=0.16 (p=0.429)

Antiagr

5 (26.3%)

9 (25.0%)

2 (25.0%)

16 (25.4%)

V=0.01 (p=0.994)

ACO

13 (68.4%)

25 (69.4%)

6 (75.0%)

44 (69.8%)

V=0.04 (p=0.941)

Antiaritmice

7 (36.8%)

13 (36.1%)

4 (50.0%)

24 (38.1%)

V=0.09 (p=0.758)

Sartani

3 (15.8%)

15 (41.7%)

1 (12.5%)

19 (30.2%)

V=0.29 (p=0.070)

Entresto

1 (5.3%)

4 (11.1%)

1 (12.5%)

6 (9.5%)

V=0.10 (p=0.745)

Spirono

14 (73.7%)

24 (66.7%)

5 (62.5%)

43 (68.3%)

V=0.08 (p=0.810)

Statina

12 (63.2%)

17 (47.2%)

3 (37.5%)

32 (50.8%)

V=0.17 (p=0.385)

ADO

8 (42.1%)

7 (19.4%)

3 (37.5%)

18 (28.6%)

V=0.24 (p=0.175)

Insulina

3 (15.8%)

8 (22.2%)

4 (50.0%)

15 (23.8%)

V=0.24 (p=0.153)

*M(R) = Mediana (min:max); MW = Test Mann-Whitney; OR/RR = odds-ratio / risc relativ [cu IC 95%] și p calculat prin testul Fisher); V = Cramer V (p calculat prin testul Chi²).

1.4 Conclusions

Biomarkers of HF used for screening the general population are also useful in patients with DM, with Galectin-3 levels being significantly higher in diabetic patients with microvascular complications than in those without.

2 Figures

2.1 ST2-Biomarker Insuf Cardiaca

2.2 Galectina 3- Biomarker Insuf Cardiaca

2.3 BNP

2.4 Fe

3 Figures 2

3.1 Correlations

3.2 Correlations2

3.3 Correlation matrix

3.3.1 All patients

3.3.2 no CKD

3.3.3 Stage 3 CKD

3.3.4 Stage 4 and 5 CKD

4 Extra

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