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.
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%.
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).  | ||||||
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.
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