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  • Title: A Correlation Analysis Between Adult Hepatic Fibrosis and Bone Mineral Density of the Lumbar Spine and Hip.
    Author: Chen C, Zhang R, Ren C, Wang Y.
    Journal: Altern Ther Health Med; 2024 Jan; 30(1):172-178. PubMed ID: 37773670.
    Abstract:
    CONTEXT: Osteoporosis (OP) is a common complication for patients who have liver cirrhosis or cholestatic liver disease or who have received a liver transplantation. Osteoporotic fractures are serious clinical consequences of OP, and they often occur in the spine, hip, and wrist; have a high disability and mortality rate; cause a serious, social, medical burden; and threaten people's health. OBJECTIVE: The study intended to explore the correlation between different degrees of liver fibrosis and bone mineral density (BMD) of the lumbar spine and hip as well as the factors influencing those differences. DESIGN: The research team performed a retrospective observational study. SETTING: The study took place at the First Affiliated Hospital of the Medical College at Ningbo University (Bund Courtyard) in Ningbo, China. PARTICIPANTS: Participants were 164 patients who had received two-dimensional shear wave elastography (2D-SWE) to measure liver stiffness and dual-energy X-ray absorptiometry (DEXA) to measure bone density at the First Affiliated Hospital of Ningbo University (Bund Courtyard) in Ningbo from May 2020 to April 2022. GROUPS: According to the liver-stiffness value, the research team divided participants into three groups: (1) the F0-F1 group with no or mild liver fibrosis, (2) the F2 group with significant liver fibrosis, and (3) F3-F4 group with severe liver fibrosis. For the three groups, the research team also compared the differences between the groups-F0-F1 to F2, F0-F1 to F3-F4, and F2 to F3-F4-in the BMD of the lumbar spine-Total, L2, L3, L4-and of the hip-Total, Neck, and Troch. OUTCOME MEASURES: The research team: (1) determined participants' degrees of liver fibrosis to create the F0-F1, F2, and F3-F4 groups and compared the BMDs of the lumbar spine and hip among those groups; (2) compared the degrees of liver fibrosis for three age groups-<40, 40-60, and ≥60 years old; (3) compared the degrees of liver fibrosis for participants with two etiologies of the disease-hepatitis or other causes; and (4) analyzed the correlations between different degrees of liver fibrosis and BMD of the lumbar spine and hip and the factors influencing those relationships. RESULTS: The study revealed significant differences among the F0-F1, F2, and F3-F4 groups in terms of age group, degree of liver fibrosis, and bone mineral density (BMD) at various sites. Specifically, there were significant age group differences between individuals aged 40-60 years and those aged ≥60 years (P < .05). There were also significant differences noted in the degree of liver fibrosis with mean values of 5.59 ± 0.81, 7.43 ± 0.26, and 15.48 ± 10.02 for the F0-F1, F2, and F3-F4 groups, respectively (P < .05). The BMDs of the lumbar spine (L2, L3, L4, and Total values) and hip (Total values, right femoral neck (Neck), and trochantor (Troch)) showed significant differences (all P < .05). However, no significant differences were found in the BMDs for the L1 vertebra and Ward's triangle among the groups (both P > .05). The analysis also revealed that the mean BMDs of the F2 group were significantly higher than those of the F0-F1 and F3-F4 groups. Furthermore, there was a positive correlation between the F2 and F0-F1 groups and a negative correlation between the F2 and F3-F4 groups (P < .05). The logistic regression analysis showed that age group (OR = 2.047, 95% CI: 0.135-1.298, P = .016) and Total BMD for the hip (OR = 176.368, 95% CI: 0.233-10.112, P = .040) were significantly, independently correlated with the degree of liver fibrosis. CONCLUSIONS: According to the findings of the present study, a positive correlation was observed between liver stiffness and bone mineral density (BMD) values in patients at the F0-F1 to F2 stage of liver fibrosis. In contrast, a significant negative correlation was identified between these parameters in patients at the F2 to F3-F4 stage, indicating that BMD tends to decrease as the degree of liver fibrosis increases. These results suggest a potential link between liver fibrosis and bone health. The comparisons between groups F0-F1 and F3-F4 with group F2. Specifically, the study found that the BMD values of the F2 group were significantly higher than those of the F0-F1 and F3-F4 groups.
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