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Messaritakis I, Koulouridi A, Boukla E, Sfakianaki M, Vogiatzoglou K, Karagianni M, Gouvas N, Tsiaoussis J, Xynos E, Athanasakis E, Mavroudis D, Tzardi M, Souglakos J. Investigation of Microbial Translocation, TLR and VDR Gene Polymorphisms, and Recurrence Risk in Stage III Colorectal Cancer Patients. Cancers (Basel) 2022; 14:4407. [PMID: 36139567 PMCID: PMC9496848 DOI: 10.3390/cancers14184407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 09/02/2022] [Accepted: 09/08/2022] [Indexed: 12/09/2022] Open
Abstract
Gut microbial dysbiosis and microbial passage into the peripheral blood leads to colorectal cancer (CRC) and disease progression. Toll-like (TLR) and vitamin D (VDR) receptors play important role in the immune modulation and polymorphisms that may increase CRC risk and death rates. The aim of the current study was to demonstrate the prognostic value of microbial DNA fragments in the blood of stage III CRC patients and correlate such microbial detection to TLR/VDR polymorphisms. Peripheral blood was collected from 132 patients for the detection of microbial DNA fragments, and TLR/VDR gene polymorphisms. In the detection of various microbial DNA fragments, TLR and VDR polymorphisms was significantly higher compared to healthy group. Homozygous individuals of either TLR or VDR polymorphisms had significantly higher detection rates of microbial DNA fragments. Mutational and MSI status were significantly correlated with TLR9 and VDR polymorphisms. Significantly shorter disease-free survival was associated with patients with BRAF mutated tumors and ApaI polymorphisms, whereas shorter overall survival was associated with the detection of C. albicans. The detection of B. fragilis, as demonstrated by the multivariate analysis, is an independent poor prognostic factor for shorter disease-free survival. TLR/VDR genetic variants were significantly correlated with the detection of microbial fragments in the blood, and this in turn is significantly associated with tumorigenesis and disease progression.
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Affiliation(s)
- Ippokratis Messaritakis
- Laboratory of Translational Oncology, Medical School, University of Crete, 70013 Heraklion, Greece
| | - Asimina Koulouridi
- Laboratory of Translational Oncology, Medical School, University of Crete, 70013 Heraklion, Greece
| | - Eleni Boukla
- Laboratory of Translational Oncology, Medical School, University of Crete, 70013 Heraklion, Greece
| | - Maria Sfakianaki
- Laboratory of Translational Oncology, Medical School, University of Crete, 70013 Heraklion, Greece
| | | | - Michaela Karagianni
- Laboratory of Translational Oncology, Medical School, University of Crete, 70013 Heraklion, Greece
| | | | - John Tsiaoussis
- Department of Anatomy, School of Medicine, University of Crete, 70013 Heraklion, Greece
| | - Evangelos Xynos
- Department of Surgery, Creta Interclinic Hospital of Heraklion, 71305 Heraklion, Greece
| | - Elias Athanasakis
- Department of General Surgery, Heraklion University Hospital, 71100 Heraklion, Greece
| | - Dimitrios Mavroudis
- Laboratory of Translational Oncology, Medical School, University of Crete, 70013 Heraklion, Greece
- Department of Medical Oncology, University General Hospital of Heraklion, 71100 Heraklion, Greece
| | - Maria Tzardi
- Laboratory of Pathology, Medical School, University of Crete, 70013 Heraklion, Greece
| | - John Souglakos
- Laboratory of Translational Oncology, Medical School, University of Crete, 70013 Heraklion, Greece
- Department of Medical Oncology, University General Hospital of Heraklion, 71100 Heraklion, Greece
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Ravaioli F, Pivetti A, Di Marco L, Chrysanthi C, Frassanito G, Pambianco M, Sicuro C, Gualandi N, Guasconi T, Pecchini M, Colecchia A. Role of Vitamin D in Liver Disease and Complications of Advanced Chronic Liver Disease. Int J Mol Sci 2022; 23:ijms23169016. [PMID: 36012285 PMCID: PMC9409132 DOI: 10.3390/ijms23169016] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/09/2022] [Accepted: 08/11/2022] [Indexed: 12/12/2022] Open
Abstract
Vitamin D is a crucial nutrient with many pleiotropic effects on health and various chronic diseases. The purpose of this review is to provide a detailed report on the pathophysiological mechanisms underlying vitamin D deficiency in patients with chronic liver disease, addressing the different liver etiologies and the condition of advanced chronic liver disease (cirrhosis) with related complications. To date, patients with liver disease, regardless of underlying etiology, have been shown to have reduced levels of vitamin D. There is also evidence of the predictive role of vitamin D values in complications and progression of advanced disease. However, specific indications of vitamin D supplementation are not conclusive concerning what is already recommended in the general population. Future studies should make an effort to unify and validate the role of vitamin D supplementation in chronic liver disease.
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Affiliation(s)
- Federico Ravaioli
- Gastroenterology Unit, Department of Medical Specialties, University Hospital of Modena, University of Modena & Reggio Emilia, 41121 Modena, Italy
- Department of Medical and Surgical Sciences, University of Bologna, 40128 Bologna, Italy
- Correspondence:
| | - Alessandra Pivetti
- Gastroenterology Unit, Department of Medical Specialties, University Hospital of Modena, University of Modena & Reggio Emilia, 41121 Modena, Italy
| | - Lorenza Di Marco
- Gastroenterology Unit, Department of Medical Specialties, University Hospital of Modena, University of Modena & Reggio Emilia, 41121 Modena, Italy
- Clinical and Experimental Medicine PhD Program, University of Modena & Reggio Emilia, 41121 Modena, Italy
| | - Christou Chrysanthi
- Gastroenterology Unit, Department of Medical Specialties, University Hospital of Modena, University of Modena & Reggio Emilia, 41121 Modena, Italy
| | - Gabriella Frassanito
- Gastroenterology Unit, Department of Medical Specialties, University Hospital of Modena, University of Modena & Reggio Emilia, 41121 Modena, Italy
| | - Martina Pambianco
- Gastroenterology Unit, Department of Medical Specialties, University Hospital of Modena, University of Modena & Reggio Emilia, 41121 Modena, Italy
| | - Chiara Sicuro
- Gastroenterology Unit, Department of Medical Specialties, University Hospital of Modena, University of Modena & Reggio Emilia, 41121 Modena, Italy
| | - Noemi Gualandi
- Gastroenterology Unit, Department of Medical Specialties, University Hospital of Modena, University of Modena & Reggio Emilia, 41121 Modena, Italy
| | - Tomas Guasconi
- Gastroenterology Unit, Department of Medical Specialties, University Hospital of Modena, University of Modena & Reggio Emilia, 41121 Modena, Italy
| | - Maddalena Pecchini
- Gastroenterology Unit, Department of Medical Specialties, University Hospital of Modena, University of Modena & Reggio Emilia, 41121 Modena, Italy
| | - Antonio Colecchia
- Gastroenterology Unit, Department of Medical Specialties, University Hospital of Modena, University of Modena & Reggio Emilia, 41121 Modena, Italy
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Effect of vitamin D deficiency on spontaneous peritonitis in cirrhosis: a meta-analysis. GASTROENTEROLOGY REVIEW 2021; 16:10-14. [PMID: 33986882 PMCID: PMC8112263 DOI: 10.5114/pg.2020.101632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 05/05/2020] [Indexed: 11/17/2022]
Abstract
Introduction Few studies have reported the relationship between spontaneous peritonitis in cirrhosis and vitamin D, and the result is not very convincing. Aim To conduct a meta-analysis to clarify the relationship between vitamin D and spontaneous peritonitis. Material and methods Articles published up to 1 October 2019 in the PubMed, Medline, and Embase databases were searched. According to the inclusion and exclusion criteria, relevant statistical data were extracted and analysed by STATA. Results Six articles met the inclusion criteria. It was demonstrated that the average 25(OH)D level in spontaneous peritonitis patients was 2.36 less than that in control individuals (SMD = -2.36, 95% CI: -3.92, -0.8, I 2 = 97.2%, p < 0.01). Moreover, it found that spontaneous peritonitis patients were 4.33 times more likely to be vitamin D deficient than controls (OR = 4.33, 95% CI: 1.57, 11.93, I 2 = 50.1%, p = 0.111). Sensitivity analysis showed that the meta-analysis results were stable and reliable. Conclusions Vitamin D may be an importantly protective factor in spontaneous peritonitis.
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Abdel Hafez H, Madani H, Abdel Alem S, Farrag A, Fathy W, Abdo M. Is Serum-Ascites Vitamin D Gradient a Valid Marker for Diagnosing Spontaneous Bacterial Peritonitis in Patients with Cirrhotic Ascites? Lab Med 2021; 52:567-573. [PMID: 33939819 DOI: 10.1093/labmed/lmab019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
OBJECTIVE Spontaneous bacterial peritonitis (SBP) is considered the paradigmatic model of infection in patients with liver cirrhosis. Therefore, there is a need for an accurate and rapid method for SBP diagnosis. The aim of this study was to evaluate the validity of serum-ascites 25-hydroxyvitamin D (25-OH vitamin D) gradient (SADG) as a marker for diagnosing SBP in patients with cirrhotic ascites. METHODS We conducted a cross-sectional analytic study of 88 patients with portal hypertensive ascites resulting from liver cirrhosis of any etiology. The demographic, clinical, and laboratory characteristics of the patients were recorded. The level of 25-OH vitamin D in serum and ascitic fluid was measured using high-performance liquid chromatography autoanalyzer. The SADG was calculated with the formula: 25-OH vitamin D in serum - 25-OH vitamin D in ascites. RESULTS Vitamin D deficiency was detected in 89.8% of the studied patients. The SADG values ranged between 0 and 69.2 ng/mL, with a median value of 5.58 ng/mL. It was significantly lower in patients with SBP than in those without SBP (P = .004). The area under the curve for SADG in exclusion of SBP was 0.67 at a cutoff value of ≥5.57 ng/mL. CONCLUSION We found that SADG may be a valid marker of SBP in patients with cirrhotic ascites.
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Affiliation(s)
- Hanan Abdel Hafez
- Endemic Medicine and Hepatology Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Hanan Madani
- Chemical Pathology Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Shereen Abdel Alem
- Endemic Medicine and Hepatology Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Ahmed Farrag
- Endemic Medicine and Hepatology Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Wael Fathy
- Tropical Medicine Department, Faculty of Medicine, Beni Suef University, Beni Suef, Egypt
| | - Mahmoud Abdo
- Endemic Medicine and Hepatology Department, Faculty of Medicine, Cairo University, Cairo, Egypt
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Hamed HM, Motawie AA, Abd Al-Aziz AM, Abou El-Ezz AA, Awad MAM, Yousef RN. Vitamin D and cathelicidin assessment in infection-induced asthma in Egyptian children. BULLETIN OF THE NATIONAL RESEARCH CENTRE 2019; 43:39. [DOI: 10.1186/s42269-019-0072-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 02/13/2019] [Indexed: 09/02/2023]
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El Sayed Zeid A, El Sayed Salem P, El Hadidi AS, Ibrahim TG. Vitamin D and LL-37 in cirrhotic patients with culture-positive spontaneous bacterial peritonitis. THE EGYPTIAN JOURNAL OF INTERNAL MEDICINE 2019. [DOI: 10.4103/ejim.ejim_102_18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
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Abstract
PURPOSE OF REVIEW This review discusses the prevalence of malnutrition in cirrhosis, metabolic functions of the liver and alterations in cirrhosis, malnutrition screening tools, and common macronutrient and micronutrient deficiencies encountered in individuals with chronic liver disease and their impact on morbidity and mortality. RECENT FINDINGS Several meta-analyses and international society guidelines recommend malnutrition screening and nutrition interventions to improve outcomes in all patients with chronic liver disease given their high risk of malnutrition which is often under recognized. Malnutrition is common in individuals with chronic liver disease and has a significant impact on patient outcomes. Thus, it is critical that validated malnutrition screening tools are used routinely in this patient population in order to identify high-risk patients and implement nutrition and exercise interventions early.
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Affiliation(s)
- Lena B Palmer
- Division of Gastroenterology, Southeast Louisiana Veterans Affairs Healthcare System, 2400 Canal St, New Orleans, LA, 70119, USA.
| | - Gabriela Kuftinec
- Department of Internal Medicine, Division of Gastroenterology & Hepatology, University of Miami Health Systems, Miller School of Medicine, Miami, FL, USA
| | - Michelle Pearlman
- Department of Internal Medicine, Division of Gastroenterology & Hepatology, University of Miami Health Systems, Miller School of Medicine, Miami, FL, USA
| | - Caitlin Homberger Green
- Division of Gastroenterology & Hepatology, Medical University of South Carolina, Charleston, SC, USA
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Jha AK, Jha SK, Kumar A, Dayal VM, Jha SK. Effect of replenishment of vitamin D on survival in patients with decompensated liver cirrhosis: A prospective study. World J Gastrointest Pathophysiol 2017; 8:133-141. [PMID: 28868183 PMCID: PMC5561434 DOI: 10.4291/wjgp.v8.i3.133] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2016] [Revised: 01/01/2017] [Accepted: 06/08/2017] [Indexed: 02/06/2023] Open
Abstract
AIM To assess the vitamin D (VD) deficiency as a prognostic factor and effect of replenishment of VD on mortality in decompensated cirrhosis.
METHODS Patients with decompensated liver cirrhosis were screened for serum VD levels. A total of 101 VD deficient patients (< 20 ng/mL) were randomly enrolled in two groups: Treatment group (n = 51) and control group (n = 50). Treatment group received VD treatment in the form of intramuscular cholecalciferol 300000 IU as loading dose and 800 IU/d oral as maintenance dose along with 1000 mg oral calcium supplementation. The VD level, clinical parameters and survival of both the groups were compared for 6-mo.
RESULTS Prevalence of vitamin D deficiency (VDD) in decompensated CLD was 84.31%. The mean (SD) age of the patients in the treatment group (M:F: 40:11) and control group (M:F: 37:13) were 46.2 (± 14.93) years and 43.28 (± 12.53) years, respectively. Baseline mean (CI) VD (ng/mL) in control group and treatment group were 9.15 (8.35-9.94) and 9.65 (8.63-10.7), respectively. Mean (CI) serum VD level (ng/mL) at 6-mo in control group and treatment group were 9.02 (6.88-11.17) and 29 (23-35), respectively. Over the period of time the VD, calcium and phosphorus level was improved in treatment group compared to control group. There was non-significant trend seen in greater survival (69% vs 64%; P > 0.05) and longer survival (155 d vs 141 d; P > 0.05) in treatment group compared to control group. VD level had no significant association with mortality (P > 0.05). In multivariate analysis, treatment with VD supplement was found significantly (P < 0.05; adjusted hazard ratio: 0.48) associated with survival of the patients over 6-mo.
CONCLUSION VD deficiency is very common in patients of decompensated CLD. Replenishment of VD may improve survival in patients with decompensated liver cirrhosis.
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The relation of innate and adaptive immunity with viral-induced acute asthma attacks: Focusing on IP-10 and cathelicidin. Allergol Immunopathol (Madr) 2017; 45:160-168. [PMID: 27955890 PMCID: PMC7126540 DOI: 10.1016/j.aller.2016.07.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2016] [Revised: 06/23/2016] [Accepted: 07/01/2016] [Indexed: 12/31/2022]
Abstract
BACKGROUND Despite growing evidence suggesting potential association between innate and adaptive immunity in viral-induced acute asthma, there is paucity of data in this area. OBJECTIVE This study aimed to investigate the association of innate and adaptive immunity with acute asthma attacks by analysing the role of IFN-γ-inducible protein 10 (IP-10), TLR2, cathelicidin, vitamin D and cytokines. MATERIAL AND METHODS This prospective study included 33 patients with viral-induced acute asthma and 30 children with controlled asthma. Nasopharyngeal swab samples were collected for virus identification and asthma attack scores assessed in acute asthma group. Blood sampling for IP-10, TLR2, cathelicidin, vitamin D levels, and spirometric indices were employed. RESULTS Serum IP-10 and cathelicidin levels of acute asthma group were significantly higher and vitamin D levels were lower than controlled asthma group (IP-10; p=0.006, cathelicidin; p=0.002, vitamin D; p<0.001). Serum IP-10 levels showed a significant negative correlation with age (p=0.009), TLR2 (p=0.05) and spirometric indices (p=0.002) in all asthmatics and a significant positive correlation with parameters of asthma attack severity (p=0.03) in acute asthma group. Higher cathelicidin values showed significant positive relation to IP-10 (beta coefficient: 33, p=0.02). Serum IP-10 levels higher than 38.9pg/ml (sensitivity: 85%, specificity: 47%, p=0.002) were predictive of virus-induced asthma. Serum IP-10 and vitamin D levels were found to be significantly related to viral-asthma attacks (IP-10; aOR: 8.93, p=0.03 and vitamin D; aOR: 0.82, p=0.001). CONCLUSIONS Innate immunity biomarkers such as serum IP-10 and cathelicidin can be used to predict viral-induced acute asthma. These biomarkers may provide potential new treatment targets for acute asthma.
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Zhang C, Zhao L, Ding Y, Sheng Q, Bai H, An Z, Xia T, Wang J, Dou X. Enhanced LL-37 expression following vitamin D supplementation in patients with cirrhosis and spontaneous bacterial peritonitis. Liver Int 2016; 36:68-75. [PMID: 26058412 DOI: 10.1111/liv.12888] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Accepted: 06/04/2015] [Indexed: 02/06/2023]
Abstract
BACKGROUND & AIMS The morbidity and mortality of spontaneous bacterial peritonitis (SBP) are high among patients with cirrhosis; however, the mechanisms of SBP pathogenesis are poorly understood. This study aimed to determine the role of the vitamin D-LL-37 pathway in the pathogenesis and treatment in patients with cirrhosis and SBP. METHODS Serum 25-hydroxyvitamin D concentrations of 119 patients with chronic liver diseases were tested. Vitamin D receptor (VDR) and LL-37 in peritoneal leucocytes of cirrhotic and ascitic patients with SBP were detected and compared with those without SBP. Then the peritoneal macrophages of non-infected patients were cultured and activated by lipopolysaccharide (LPS) to analyse the changes of VDR and LL-37 expressions after incubation with vitamin D. RESULTS Vitamin D deficiency or insufficiency was found in all of patients with cirrhosis. LPS inhibited VDR and LL-37 expression in peritoneal macrophages [1.3-fold decrease (P = 0.003) and 20-fold decrease (P = 0.010) respectively]. However, vitamin D could reverse the inhibition of both VDR and LL-37 [1.5-fold increase (P = 0.001) and 2000-fold increase (P < 0.001) respectively]. The effect of the incubation time following vitamin D supplementation was significant for LL-37 expression, with a peak expression found at 36 h (P < 0.001). CONCLUSIONS When vitamin D levels were low, bacteria inhibited VDR and LL-37 responses in peritoneal macrophages as a mechanism to evade antibacterial defence. Vitamin D supplementation could up-regulate peritoneal macrophage VDR and LL-37 expressions, which resulted in an enhanced immunological defence against SBP in patients with cirrhosis and ascites.
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Affiliation(s)
- Chong Zhang
- Department of Infectious Diseases, Shengjing Hospital of China Medical University, Shenyang, China
| | - Lianrong Zhao
- Department of Infectious Diseases, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yang Ding
- Department of Infectious Diseases, Shengjing Hospital of China Medical University, Shenyang, China
| | - Qiuju Sheng
- Department of Infectious Diseases, Shengjing Hospital of China Medical University, Shenyang, China
| | - Han Bai
- Department of Infectious Diseases, Shengjing Hospital of China Medical University, Shenyang, China
| | - Ziying An
- Department of Infectious Diseases, Shengjing Hospital of China Medical University, Shenyang, China
| | - Tingting Xia
- Department of Infectious Diseases, Shengjing Hospital of China Medical University, Shenyang, China
| | - Jingyan Wang
- Department of Infectious Diseases, Shengjing Hospital of China Medical University, Shenyang, China
| | - Xiaoguang Dou
- Department of Infectious Diseases, Shengjing Hospital of China Medical University, Shenyang, China
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Finkelmeier F, Kronenberger B, Zeuzem S, Piiper A, Waidmann O. Low 25-Hydroxyvitamin D Levels Are Associated with Infections and Mortality in Patients with Cirrhosis. PLoS One 2015; 10:e0132119. [PMID: 26121590 PMCID: PMC4487892 DOI: 10.1371/journal.pone.0132119] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Accepted: 06/10/2015] [Indexed: 12/29/2022] Open
Abstract
Background & Aims Vitamin D, best known to regulate bone mineralization, has numerous additional roles including regulation inflammatory pathways. Recently, an increased incidence of 25-hydroxyvitamin D3 (25(OH)D3) deficiency has been found in subjects suffering from liver diseases. We here investigated if low vitamin D levels might be associated with prognosis, inflammation and infectious complications in patients with cirrhosis. Methods We performed a prospective cohort study investigating the relation between 25(OH)D3 levels and stages of cirrhosis, mortality and complications of cirrhosis, including infections. Results 251 patients with cirrhosis were enrolled into the present prospective cohort study. 25(OH)D3 levels were quantified by radioimmunoassay from serum samples obtained at study inclusion. The mean follow-up time was 411 ± 397 days with a range of 1-1382 days. 30 (12.0%) patients underwent liver transplantation and 85 (33.8%) individuals died within the study. The mean serum 25(OH)D3 concentration was 8.93 ± 7.1 ng/ml with a range of 1.0 to 46.0 ng/ml. 25(OH)D3 levels differed significantly between Child Pugh scores and showed a negative correlation with the model of end stage liver disease (MELD) score. Patients with decompensated cirrhosis and infectious complications, had significantly lower 25(OH)D3 levels compared to subjects without complications. Low 25(OH)D3 was associated with mortality in uni- as well as multivariate Cox regression models. Conclusions 25(OH)D3 deficiency is associated with advanced liver disease and low 25(OH)D3 levels are an indicator for a poor outcome and are associated with infectious complications.
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Affiliation(s)
- Fabian Finkelmeier
- Medizinische Klinik 1, Schwerpunkt Gastroenterologie und Hepatologie, Universitätsklinikum Frankfurt, Goethe-Universität, Theodor-Stern-Kai 7, D-60590 Frankfurt/Main, Germany
- * E-mail:
| | - Bernd Kronenberger
- Medizinische Klinik 1, Schwerpunkt Gastroenterologie und Hepatologie, Universitätsklinikum Frankfurt, Goethe-Universität, Theodor-Stern-Kai 7, D-60590 Frankfurt/Main, Germany
| | - Stefan Zeuzem
- Medizinische Klinik 1, Schwerpunkt Gastroenterologie und Hepatologie, Universitätsklinikum Frankfurt, Goethe-Universität, Theodor-Stern-Kai 7, D-60590 Frankfurt/Main, Germany
| | - Albrecht Piiper
- Medizinische Klinik 1, Schwerpunkt Gastroenterologie und Hepatologie, Universitätsklinikum Frankfurt, Goethe-Universität, Theodor-Stern-Kai 7, D-60590 Frankfurt/Main, Germany
| | - Oliver Waidmann
- Medizinische Klinik 1, Schwerpunkt Gastroenterologie und Hepatologie, Universitätsklinikum Frankfurt, Goethe-Universität, Theodor-Stern-Kai 7, D-60590 Frankfurt/Main, Germany
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Heimlich DR, Harrison A, Mason KM. Host Antimicrobial Peptides in Bacterial Homeostasis and Pathogenesis of Disease. Antibiotics (Basel) 2014; 3:645-76. [PMID: 26029470 PMCID: PMC4448142 DOI: 10.3390/antibiotics3040645] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Revised: 11/05/2014] [Accepted: 11/05/2014] [Indexed: 01/10/2023] Open
Abstract
Innate immune responses function as a first line of host defense against the development of bacterial infection, and in some cases to preserve the sterility of privileged sites in the human host. Bacteria that enter these sites must counter host responses for colonization. From the host's perspective, the innate immune system works expeditiously to minimize the bacterial threat before colonization and subsequent dysbiosis. The multifactorial nature of disease further challenges predictions of how each independent variable influences bacterial pathogenesis. From bacterial colonization to infection and through disease, the microenvironments of the host are in constant flux as bacterial and host factors contribute to changes at the host-pathogen interface, with the host attempting to eradicate bacteria and the bacteria fighting to maintain residency. A key component of this innate host response towards bacterial infection is the production of antimicrobial peptides (AMPs). As an early component of the host response, AMPs modulate bacterial load and prevent establishment of infection. Under quiescent conditions, some AMPs are constitutively expressed by the epithelium. Bacterial infection can subsequently induce production of other AMPs in an effort to maintain sterility, or to restrict colonization. As demonstrated in various studies, the absence of a single AMP can influence pathogenesis, highlighting the importance of AMP concentration in maintaining homeostasis. Yet, AMPs can increase bacterial virulence through the co-opting of the peptides or alteration of bacterial virulence gene expression. Further, bacterial factors used to subvert AMPs can modify host microenvironments and alter colonization of the residential flora that principally maintain homeostasis. Thus, the dynamic interplay between host defense peptides and bacterial factors produced to quell peptide activity play a critical role in the progression and outcome of disease.
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Affiliation(s)
- Derek R. Heimlich
- The Research Institute at Nationwide Children’s Center for Microbial Pathogenesis, Columbus, OH 43205, USA; E-Mails: (D.R.H.); (A.H.)
| | - Alistair Harrison
- The Research Institute at Nationwide Children’s Center for Microbial Pathogenesis, Columbus, OH 43205, USA; E-Mails: (D.R.H.); (A.H.)
| | - Kevin M. Mason
- The Research Institute at Nationwide Children’s Center for Microbial Pathogenesis, Columbus, OH 43205, USA; E-Mails: (D.R.H.); (A.H.)
- The Ohio State University College of Medicine, Department of Pediatrics, Columbus, OH 43205, USA
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Anty R, Tonohouan M, Ferrari-Panaia P, Piche T, Pariente A, Anstee QM, Gual P, Tran A. Low Levels of 25-Hydroxy Vitamin D are Independently Associated with the Risk of Bacterial Infection in Cirrhotic Patients. Clin Transl Gastroenterol 2014; 5:e56. [PMID: 24871371 PMCID: PMC4042021 DOI: 10.1038/ctg.2014.6] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Revised: 03/10/2014] [Accepted: 04/10/2014] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVES: Low levels of vitamin D are associated with a higher mortality in cirrhotic patients, but the role of this deficiency is still unknown. The purpose of this study was to assess the levels of vitamin D in cirrhotic patients with and without bacterial infection. METHODS: 25-hydroxy (25-OH) vitamin D was assessed by immunoassay in 88 patients hospitalized in our hepatology unit. RESULTS: The causes of cirrhosis were mainly alcohol (70%), hepatitis C (10%), or both (9%). Infections (n=38) mainly included bacteriemia (21%), urinary tract infections (24%), and spontaneous bacterial peritonitis (29%). A severe deficiency in vitamin D (<10 ng/ml) was observed in 56.8% of patients. Infections were more frequent in patients with a severe deficiency compared with the others (54 vs. 29%, P=0.02). A severe deficiency in vitamin D was a predictive factor of infection (odds ratio=5.44 (1.35–21.97), P=0.017) independently of the Child–Pugh score (odds ratio=2.09 (1.47–2.97) P=0.00004) and the C-reactive protein level (odds ratio=1.03 (1.002–1.052), P=0.03) in a logistic regression also including the alanine amino transferase (not significant). By a Cox regression analysis, only the presence of an infection was significantly associated with mortality (relative risk=3.24 (1.20–8.76), P=0.02) in a model also associating the Child–Pugh score (not significant) and the presence of a severe deficiency in vitamin D (not significant). CONCLUSIONS: Low levels of 25-OH vitamin D were independently associated with bacterial infections in cirrhotic patients. The impact of 25-OH vitamin D supplementation on the infection rate and death of cirrhotic patients should be assessed in randomized trials.
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Affiliation(s)
- Rodolphe Anty
- 1] Institut National de la Santé et de la Recherche Médicale (INSERM), U1065, Team 8, "Hepatic Complications in Obesity", Nice, France [2] Centre Hospitalier Universitaire of Nice, Digestive Center, Pôle Référence Hépatite C, Hôpital de l'Archet 2, Nice, France [3] Faculty of Medecine, University of Nice-Sophia-Antipolis, Nice, France
| | - M Tonohouan
- Institut National de la Santé et de la Recherche Médicale (INSERM), U1065, Team 8, "Hepatic Complications in Obesity", Nice, France
| | - P Ferrari-Panaia
- Centre Hospitalier Universitaire of Nice, Biological Center, Nice, France
| | - T Piche
- 1] Centre Hospitalier Universitaire of Nice, Digestive Center, Pôle Référence Hépatite C, Hôpital de l'Archet 2, Nice, France [2] Faculty of Medecine, University of Nice-Sophia-Antipolis, Nice, France [3] Institut National de la Santé et de la Recherche Médicale (INSERM), 576, Immunology Department, Archet 1 Hospital, Nice, France
| | - A Pariente
- Centre Hospitalier of Pau, Digestive Center, Pau, France
| | - Q M Anstee
- Institute of Cellular Medicine, The Medical School, Newcastle University, Newcastle upon Tyne, UK
| | - P Gual
- 1] Institut National de la Santé et de la Recherche Médicale (INSERM), U1065, Team 8, "Hepatic Complications in Obesity", Nice, France [2] Faculty of Medecine, University of Nice-Sophia-Antipolis, Nice, France
| | - A Tran
- 1] Institut National de la Santé et de la Recherche Médicale (INSERM), U1065, Team 8, "Hepatic Complications in Obesity", Nice, France [2] Centre Hospitalier Universitaire of Nice, Digestive Center, Pôle Référence Hépatite C, Hôpital de l'Archet 2, Nice, France [3] Faculty of Medecine, University of Nice-Sophia-Antipolis, Nice, France
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Stokes CS, Krawczyk M, Reichel C, Lammert F, Grünhage F. Vitamin D deficiency is associated with mortality in patients with advanced liver cirrhosis. Eur J Clin Invest 2014; 44:176-83. [PMID: 24236541 DOI: 10.1111/eci.12205] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2013] [Accepted: 11/10/2013] [Indexed: 12/13/2022]
Abstract
BACKGROUND Chronic liver disease is the fifth most common cause of mortality in Europe. Recently, vitamin D deficiency has been associated with an increased risk of mortality in the general population. As patients with advanced liver disease frequently exhibit vitamin D deficiency, we assessed for a possible association of vitamin D deficiency with survival in a cohort of patients with advanced liver disease. METHODS Sixty-five patients with liver cirrhosis (median age, 58 years; range, 19-76 years; 66% male; Child-Pugh stage C, 46%) were included in our prospective single-centre survival study. Serum 25-hydroxyvitamin D concentrations were measured by chemiluminescence immunoassay. The optimal cut-off was determined using receiver operating characteristic (ROC) and Kaplan-Meier analysis. Chi-square statistics and multivariate binary logistic regression analysis were also conducted. RESULTS Median serum vitamin D levels were 8·2 ng/mL (range <4·0-95·8 ng/mL). Overall, 48% of patients (31/65) died during a 24-month follow-up period. ROC analysis determined a vitamin D level of 6·0 ng/mL as optimal cut-off for discriminating survivors from nonsurvivors. Kaplan-Meier analysis of survival confirmed low vitamin D levels as significant predictor of death (P = 0·012). Finally, multivariate analysis identified low vitamin D levels (OR = 6·3; 95% CI, 1·2-31·2; P = 0·012) and MELD scores (OR = 1·4; 95% CI, 1·2-1·7; P < 0·001) as independent predictors of survival. CONCLUSION Low vitamin D levels are associated with increased mortality in patients with advanced liver disease. Thus, serum levels of vitamin D might represent a critical marker of survival in advanced liver cirrhosis.
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Affiliation(s)
- Caroline S Stokes
- Department of Medicine II, Saarland University Medical Center, Homburg, Germany
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15
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Abstract
Nutrition has not been a primary focus of many medical conditions despite its importance in the development and the severity of these diseases. This is certainly the case with nutrition and end-stage liver disease despite the well-established association of nutritional deficiencies and increased rates of complications and mortality in cirrhosis. This review provides an overview of nutrition in chronic liver disease with an emphasis on its pathogenesis as well as ways to assess nutritional status and intervene in an effort to improve nutrition.
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16
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Griffin AT, Arnold FW. Review of metabolic, immunologic, and virologic consequences of suboptimal vitamin D levels in HIV infection. AIDS Patient Care STDS 2012; 26:516-25. [PMID: 22861070 DOI: 10.1089/apc.2012.0145] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Low 25-hydroxyvitamin D levels are common in the general and HIV-infected populations alike. Defined as levels less than 30 ng/mL, suboptimal vitamin D is known to afflict over 70% of representative samples from each group in resource-rich countries with even greater prevalence in resource-poor regions of the world. In both those with and without HIV, dark skin, low vitamin D intake, exiguous exposure to sunlight, and season act as risk factors for suboptimal vitamin D levels. In those infected with HIV, antiretroviral therapy, particularly non-nucleoside reverse transcriptase inhibitors (NNRTIs), increase risk for low vitamin D as well. Furthermore, metabolic aberrations, including obesity and hyperlipidemia, and miscellaneous risk factors, such as advanced AIDS and substance abuse, have been linked to suboptimal vitamin D in those with HIV. While the skeletal and cardiovascular systems of HIV patients may be adversely impacted as a result of low levels, recent data have also linked low vitamin D to decreased CD4 counts, higher viral loads, and to critical end points including progression to AIDS events and death. More research is needed to confirm these potential consequences of low vitamin D in those with HIV and to discern the benefits of routine screening for and treatment of low vitamin D in this population.
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Affiliation(s)
- Allen T. Griffin
- School of Medicine, Department of Medicine, Division of Infectious Diseases, University of Louisville, Louisville, Kentucky
| | - Forest W. Arnold
- School of Medicine, Department of Medicine, Division of Infectious Diseases, University of Louisville, Louisville, Kentucky
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