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1.
Prostaglandins Other Lipid Mediat ; : 106876, 2024 Jul 18.
Artigo em Inglês | MEDLINE | ID: mdl-39032860

RESUMO

Solid organ transplantation is a life-saving treatment for patients with end-stage organ failure, but it poses unique challenges due to metabolic and immunological changes in recipients. One significant complication is post-transplant diabetes mellitus (PTDM), which affects a variety of solid organ recipients. Leptin, a hormone produced by adipose tissue, regulates appetite and affects glucose metabolism. High leptin levels are associated with the development of PTDM, especially in kidney transplant recipients. Adiponectin, another adipokine, increases insulin sensitivity and has anti-diabetic properties. Low adiponectin levels are associated with insulin resistance and increase the risk of PTDM. As the incidence of PTDM increases due to the increased life expectancy among transplant patients, understanding the role of adipokines such as leptin and adiponectin becomes crucial for early detection and treatment. Additional studies on other adipokines may also provide valuable information on the pathogenesis of PTDM.

2.
Int J Mol Sci ; 24(2)2023 Jan 09.
Artigo em Inglês | MEDLINE | ID: mdl-36674775

RESUMO

The intestinal microflora is extremely important, not only in the processes of absorption, digestion and biosynthesis of vitamins, but also in shaping the immune and cognitive functions of the human body. Several studies demonstrate a correlation between microbiota composition and such events as graft rejection, kidney interstitial fibrosis, urinary tract infections, and diarrhoea or graft tolerance. Some of those changes might be directly linked with pathologies such as colonization with pathogenic bacterial strains. Gut microbiota composition also plays an important role in metabolic complications and viral infections after transplantation. From the other side, gut microbiota might induce graft tolerance by promotion of T and B regulatory cells. Graft tolerance induction is still an extremely important issue regarding transplantology and might allow the reduction or even avoidance of immunosuppressive treatment. Although there is a rising evidence of the pivotal role of gut microbiota in aspects of kidney transplantation there is still a lack of knowledge on the direct mechanisms of microbiota action. Furthermore, some of those negative effects could be reversed by probiotics of faecal microbiota trapoinsplantation. While diabetes and hypertension as well as BKV and CMV viremia are common and important complications of transplantation, both worsening the graft function and causing systemic injuries, it opens up potential clinical treatment options. As has been also suggested in the current review, some bacterial subsets exhibit protective properties. However, currently, there is a lack of evidence on pro- and prebiotic supplementation in kidney transplant patients. In the current review, we describe the effect of the microbiota on the transplanted kidney in renal transplant recipients.


Assuntos
Microbioma Gastrointestinal , Transplante de Rim , Viroses , Humanos , Rim , Transplante de Rim/efeitos adversos , Imunossupressores , Bactérias
3.
Int J Mol Sci ; 24(12)2023 Jun 18.
Artigo em Inglês | MEDLINE | ID: mdl-37373448

RESUMO

Renal transplantation is now the best treatment for end-stage renal failure. To avoid rejection and prolong graft function, organ recipients need immunosuppressive therapy. The immunosuppressive drugs used depends on many factors, including time since transplantation (induction or maintenance), aetiology of the disease, and/or condition of the graft. Immunosuppressive treatment needs to be personalised, and hospitals and clinics have differing protocols and preparations depending on experience. Renal transplant recipient maintenance treatment is mostly based on triple-drug therapy containing calcineurin inhibitors, corticosteroids, and antiproliferative drugs. In addition to the desired effect, the use of immunosuppressive drugs carries risks of certain side effects. Therefore, new immunosuppressive drugs and immunosuppressive protocols are being sought that exert fewer side effects, which could maximise efficacy and reduce toxicity and, in this way, reduce both morbidity and mortality, as well as increase opportunities to modify individual immunosuppression for renal recipients of all ages. The aim of the current review is to describe the classes of immunosuppressive drugs and their mode of action, which are divided by induction and maintenance treatment. An additional aspect of the current review is a description of immune system activity modulation by the drugs used in renal transplant recipients. Complications associated with the use of immunosuppressive drugs and other immunosuppressive treatment options used in kidney transplant recipients have also been described.


Assuntos
Transplante de Rim , Humanos , Transplante de Rim/métodos , Rejeição de Enxerto/tratamento farmacológico , Rejeição de Enxerto/prevenção & controle , Imunossupressores/efeitos adversos , Terapia de Imunossupressão/métodos , Inibidores de Calcineurina/efeitos adversos
4.
Int J Mol Sci ; 24(8)2023 Apr 12.
Artigo em Inglês | MEDLINE | ID: mdl-37108259

RESUMO

Behavioural and emotional disturbances (F92.8) are the most recognized disorders in a developmental psychiatry. As the problem is still alarmingly increasing, the searches for their etiopathogenesis and more effective preventing and therapy methods are required. The aim of the study was to assess the association between the quality of life, some psychopathological features, concentrations of selected immunoprotective (brain-derived neurotrophin, BDNF), and endocrine (cortisol, F) factors while adolescent disturbances. The study was performed in 123 inpatients of a psychiatric ward with F92.8 diagnosis, aged 13-18 years. The complete patients' interview, physical examination, and routine laboratory tests, including serum F and BDNF tests, were performed. All patients completed standardized questionnaires to estimate: the severity of psychopathological symptoms (SCL-90), the level of aggression (Buss-Perry). The changes in the plasma BDNF and F concentrations were shown in patients raised in foster homes and institutions. The significantly lower BDNF was observed in youth from foster and suicide-experienced families. The more severe psychopathological symptoms, especially aggression and hostility, were found in these ones, who abused alcohol, attempted suicide, had lower self-esteem and cognitive processes, and were lacking safety in dysfunctional families.


Assuntos
Sintomas Afetivos , Transtornos Relacionados ao Uso de Substâncias , Humanos , Adolescente , Qualidade de Vida , Fator Neurotrófico Derivado do Encéfalo , Agressão/psicologia , Transtornos Relacionados ao Uso de Substâncias/psicologia
5.
Int J Mol Sci ; 23(19)2022 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-36232910

RESUMO

Type 2 diabetes is a disease that causes numerous complications disrupting the functioning of the entire body. Therefore, new treatments for the disease are being sought. Studies in recent years have shown that forkhead box O (FOXO) proteins may be a promising target for diabetes therapy. FOXO proteins are transcription factors involved in numerous physiological processes and in various pathological conditions, including cardiovascular diseases and diabetes. Their roles include regulating the cell cycle, DNA repair, influencing apoptosis, glucose metabolism, autophagy processes and ageing. FOXO1 is an important regulator of pancreatic beta-cell function affecting pancreatic beta cells under conditions of insulin resistance. FOXO1 also protects beta cells from damage resulting from oxidative stress associated with glucose and lipid overload. FOXO has been shown to affect a number of processes involved in the development of diabetes and its complications. FOXO regulates pancreatic ß-cell function during metabolic stress and also plays an important role in regulating wound healing. Therefore, the pharmacological regulation of FOXO proteins is a promising approach to developing treatments for many diseases, including diabetes mellitus. In this review, we describe the role of FOXO proteins in the pathogenesis of diabetes and the role of the modulation of FOXO function in the therapy of this disease.


Assuntos
Diabetes Mellitus Tipo 2 , Células Secretoras de Insulina , Diabetes Mellitus Tipo 2/etiologia , Diabetes Mellitus Tipo 2/metabolismo , Diabetes Mellitus Tipo 2/terapia , Proteína Forkhead Box O1/genética , Proteína Forkhead Box O1/metabolismo , Fatores de Transcrição Forkhead/metabolismo , Glucose/metabolismo , Humanos , Células Secretoras de Insulina/metabolismo , Lipídeos
6.
Eur J Clin Pharmacol ; 77(11): 1673-1678, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-34160668

RESUMO

AIM: Leflunomide is a disease-modifying antirheumatic drug used in therapy for rheumatoid arthritis (RA). Previous studies indicated that oestrogens and androgens may affect the response to leflunomide in RA patients. The synthesis of androgens is regulated by cytochrome CYB5A. The aim of this study was to examine the association between the CYB5A gene rs1790834 polymorphism and the response to leflunomide in women with RA. METHODS: The study included 111 women diagnosed with RA. Leflunomide was administered in monotherapy at a dose of 20 mg/day. All patients underwent a monthly evaluation for 12 months after the initiation of treatment with leflunomide. RESULTS: After 12 months of therapy, the changes in individual disease activity parameters, such as: DAS28, ESR, CRP and VAS, were not statistically significantly different between rs1790834 genotypes in the Kruskal-Wallis test. CONCLUSIONS: The results of our study suggest lack of statistically significant association between the CYB5A gene rs1790834 polymorphism and the response to leflunomide in women with RA.


Assuntos
Antirreumáticos/uso terapêutico , Artrite Reumatoide/tratamento farmacológico , Citocromos b5/genética , Leflunomida/uso terapêutico , Adulto , Idoso , Feminino , Genótipo , Humanos , Pessoa de Meia-Idade , Polimorfismo de Nucleotídeo Único
7.
Int J Mol Sci ; 22(24)2021 Dec 10.
Artigo em Inglês | MEDLINE | ID: mdl-34948091

RESUMO

Glucocorticoids, as multifunctional hormones, are widely used in the treatment of various diseases including nephrological disorders. They are known to affect immunological cells, effectively treating many autoimmune and inflammatory processes. Furthermore, there is a growing body of evidence demonstrating the potent role of glucocorticoids in non-immune cells such as podocytes. Moreover, novel data show additional pathways and processes affected by glucocorticoids, such as the Wnt pathway or autophagy. The endothelium is currently considered as a key organ in the regulation of numerous kidney functions such as glomerular filtration, vascular tone and the regulation of inflammation and coagulation. In this review, we analyse the literature concerning the effects of endothelial glucocorticoid receptor signalling on kidney function in health and disease, with special focus on hypertension, diabetic kidney disease, glomerulopathies and chronic kidney disease. Recent studies demonstrate the potential role of endothelial GR in the prevention of fibrosis of kidney tissue and cell metabolism through Wnt pathways, which could have a protective effect against disease progression. Another important aspect covered in this review is blood pressure regulation though GR and eNOS. We also briefly cover potential therapies that might affect the endothelial glucocorticoid receptor and its possible clinical implications, with special interest in selective or local GR stimulation and potential mitigation of GC treatment side effects.


Assuntos
Nefropatias Diabéticas/metabolismo , Endotélio Vascular/metabolismo , Glucocorticoides/metabolismo , Podócitos/metabolismo , Receptores de Glucocorticoides/metabolismo , Via de Sinalização Wnt , Animais , Humanos
8.
Int J Mol Sci ; 22(11)2021 Jun 06.
Artigo em Inglês | MEDLINE | ID: mdl-34204029

RESUMO

Acute kidney injury (AKI) is a global health challenge of vast proportions, as approx. 13.3% of people worldwide are affected annually. The pathophysiology of AKI is very complex, but its main causes are sepsis, ischemia, and nephrotoxicity. Nephrotoxicity is mainly associated with the use of drugs. Drug-induced AKI accounts for 19-26% of all hospitalized cases. Drug-induced nephrotoxicity develops according to one of the three mechanisms: (1) proximal tubular injury and acute tubular necrosis (ATN) (a dose-dependent mechanism), where the cause is related to apical contact with drugs or their metabolites, the transport of drugs and their metabolites from the apical surface, and the secretion of drugs from the basolateral surface into the tubular lumen; (2) tubular obstruction by crystals or casts containing drugs and their metabolites (a dose-dependent mechanism); (3) interstitial nephritis induced by drugs and their metabolites (a dose-independent mechanism). In this article, the mechanisms of the individual types of injury will be described. Specific groups of drugs will be linked to specific injuries. Additionally, the risk factors for the development of AKI and the methods for preventing and/or treating the condition will be discussed.


Assuntos
Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/prevenção & controle , Nefropatias/prevenção & controle , Rim/patologia , Animais , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/tratamento farmacológico , Humanos , Inibidores de Checkpoint Imunológico/farmacologia , Inibidores de Checkpoint Imunológico/uso terapêutico , Nefropatias/tratamento farmacológico , Túbulos Renais/efeitos dos fármacos , Túbulos Renais/patologia , Metaboloma
9.
J Vasc Res ; 57(3): 136-142, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32224624

RESUMO

Acute coronary syndrome occurs when the heart muscle does not receive adequate oxygen and nutrients in a timely manner. Acute coronary syndromes are primarily due to atherosclerosis of the coronary arteries, i.e., coronary heart disease. Nitric oxide (NO) is synthesised from L-arginine in endothelial cells by the constitutive calcium-calmodulin-dependent enzyme, nitric oxide synthase (NOS), which mediates endothelium-dependent vasodilatation. Endothelial nitric oxide synthase (eNOS) is predominantly expressed in endothelial cells. Three NOS isoforms have been detected in different tissue: (1) neuronal NOS (nNOS) (NOS1), (2) eNOS (NOS2), and (3) inducible NOS (iNOS) (NOS3). These isoforms are encoded by three different genes. NOS3 is located on chromosome 7q35-36 and contains 26 exons. Previous studies have suggested that NOS3 polymorphisms may be associated with acute coronary syndromes. Therefore, the aim of the study was to examine the associations between NOS3 rs1799983 (894G/T)andrs2070744 (-786T/C) polymorphisms and unstable angina. This study included 246 patients with unstable angina, as confirmed by coronary angiography. We also included 189 healthy controls who were also assessed by this technique. There were no significant differences in genotype distributions of NOS3 rs1799983and rs2070744 polymorphisms in patients with unstable angina and healthy controls in both univariate and multivariate analyses. In patients with the NOS3 rs1799983 TT genotype, we observed a higher BMI (TT vs. GT + GG, p = 0.068), and in patients with the NOS3 rs2070744 TT genotype, we observed a higher waist circumference (TT vs. TC + CC, p = 0.023; TT vs. CC, p = 0.0053). These data suggest a lack of association between the NOS3 rs1799983andrs2070744 polymorphisms and unstable angina in our patient population. However, these polymorphisms may be associated with some obesity parameters, rs1799983 in females and rs2070744 in males.


Assuntos
Angina Instável/genética , Óxido Nítrico Sintase Tipo III/genética , Polimorfismo de Nucleotídeo Único , Idoso , Angina Instável/diagnóstico , Angina Instável/enzimologia , Estudos de Casos e Controles , Feminino , Estudos de Associação Genética , Predisposição Genética para Doença , Humanos , Masculino , Pessoa de Meia-Idade , Obesidade/diagnóstico , Obesidade/enzimologia , Obesidade/genética , Fenótipo , Fatores de Risco , Circunferência da Cintura/genética
10.
Int J Mol Sci ; 21(17)2020 Aug 25.
Artigo em Inglês | MEDLINE | ID: mdl-32854332

RESUMO

Endocan, previously referred to as an endothelial-cell-specific molecule-1 (ESM-1) is a member of a proteoglycan family that is secreted by vascular endothelial cells of different organs, mainly lungs and kidneys. It is assumed to participate in endothelial activation and the triggering of inflammatory reactions, especially in microvasculatures. Thanks to its solubility in human fluids, i.e., urine and blood plasma, its stability and its low concentrations in physiological conditions, endocan has been proposed as an easily available, non-invasive biomarker for identifying and predicting the course of many diseases. Recently, endocan has been studied in relation to kidney diseases. In general, endocan levels have been linked to worse clinical outcomes of renal dysfunction; however, results are conflicting and require further evaluation. In this review, authors summarize available knowledge regarding the role of endocan in pathogenesis and progression of selected kidney diseases.


Assuntos
Nefropatias/diagnóstico , Proteínas de Neoplasias/metabolismo , Proteoglicanas/metabolismo , Biomarcadores/metabolismo , Progressão da Doença , Humanos , Nefropatias/metabolismo , Nefropatias/fisiopatologia , Testes de Função Hepática
11.
Int J Mol Sci ; 21(24)2020 Dec 09.
Artigo em Inglês | MEDLINE | ID: mdl-33317050

RESUMO

Adiponectin is the adipokine associated with insulin sensitization, reducing liver gluconeogenesis, and increasing fatty acid oxidation and glucose uptake. Adiponectin is present in the kidneys, mainly in the arterial endothelium and smooth muscle cells, as well as in the capillary endothelium, and might be considered as a marker of many negative factors in chronic kidney disease. The last few years have brought a rising body of evidence that adiponectin is a multipotential protein with anti-inflammatory, metabolic, anti-atherogenic, and reactive oxygen species (ROS) protective actions. Similarly, adiponectin has shown many positive and direct actions in kidney diseases, and among many kidney cells. Data from large cross-sectional and cohort studies showed a positive correlation between serum adiponectin and mortality in chronic kidney disease. This suggests a complex interaction between local adiponectin action, comorbidities, and uremic milieu. In this review we discuss the role of adiponectin in chronic kidney disease.


Assuntos
Adiponectina/metabolismo , Insuficiência Renal Crônica/metabolismo , Adiponectina/sangue , Animais , Biomarcadores/sangue , Reabsorção Óssea/etiologia , Humanos , Insuficiência Renal Crônica/sangue , Insuficiência Renal Crônica/complicações , Insuficiência Renal Crônica/patologia , Calcificação Vascular/etiologia
12.
Int J Mol Sci ; 21(23)2020 Nov 30.
Artigo em Inglês | MEDLINE | ID: mdl-33266154

RESUMO

Connexins (Cx) are members of a protein family that forms intercellular channels localised in gap junction (GJ) plaques and single transmembrane channels called hemichannels. They participate in intercellular communication or communication between the intracellular and extracellular environments. Connexins affect cell homeostasis, growth and differentiation by enabling the exchange of metabolites or by interfering with various signalling pathways. Alterations in the functionality and the expression of connexins have been linked to the occurrence of many diseases. Connexins have been already linked to cancers, cardiac and brain disorders, chronic lung and kidney conditions and wound healing processes. Connexins have been shown either to suppress cancer tumour growth or to increase tumorigenicity by promoting cancer cell growth, migration and invasiveness. A better understanding of the complexity of cancer biology related to connexins and intercellular communication could result in the design of novel therapeutic strategies. The modulation of connexin expression may be an effective therapeutic approach in some types of cancers. Therefore, one important challenge is the search for mechanisms and new drugs, selectively modulating the expression of various connexin isoforms. We performed a systematic literature search up to February 2020 in the electronic databases PubMed and EMBASE. Our search terms were as follows: connexins, hemichannels, cancer and cancer treatment. This review aims to provide information about the role of connexins and gap junctions in cancer, as well as to discuss possible therapeutic options that are currently being studied.


Assuntos
Conexinas/metabolismo , Neoplasias/metabolismo , Animais , Antineoplásicos/farmacologia , Biomarcadores Tumorais/antagonistas & inibidores , Biomarcadores Tumorais/metabolismo , Terapia Combinada , Conexinas/antagonistas & inibidores , Conexinas/química , Conexinas/genética , Suscetibilidade a Doenças , Humanos , Terapia de Alvo Molecular , Neoplasias/etiologia , Neoplasias/terapia , Relação Estrutura-Atividade
13.
Int J Mol Sci ; 21(12)2020 Jun 22.
Artigo em Inglês | MEDLINE | ID: mdl-32580317

RESUMO

A new approach to improve the effectiveness of acute myeloid leukemia (AML) treatment is to use the properties of purinergic signaling molecules secreted into the bone marrow milieu in response to leukemic cell growth. Therefore, our study aimed to evaluate the effects of extracellular adenine nucleotides and adenosine on the growth and death parameters in the leukemic THP-1 cell line. Cells were exposed to ATP, ADP, AMP, adenosine and nonhydrolyzable analogues of ATP and ADP (ATPγS and ADPßS) in a 1-1000 µM broad concentration range. The basal mRNA expression of the P1 and P2 receptors was evaluated by real-time PCR. Changes in the processes of cell growth and death were assessed by flow cytometry analysis of proliferation, cell cycle and apoptosis. Chemotaxis toward stromal cell-derived factor-1 (SDF-1) was performed using the modified Boyden chamber assay, and chemokine receptor type 4 (CXCR4) surface expression was quantified by flow cytometry. We indicated several antileukemic actions. High micromolar concentrations (100-1000 µM) of extracellular adenine nucleotides and adenosine inhibit the growth of cells by arresting the cell cycle and/or inducing apoptosis. ATP is characterized by the highest potency and widest range of effects, and is responsible for the cell cycle arrest and the apoptosis induction. Compared to ATP, the effect of ADP is slightly weaker. Adenosine mostly has a cytotoxic effect, with the induction of apoptosis. The last studied nucleotide, AMP, demonstrated only a weak cytotoxic effect without affecting the cell cycle. In addition, cell migration towards SDF-1 was inhibited by low micromolar concentrations (10 µM). One of the reasons for this action of ATPγS and adenosine was a reduction in CXCR4 surface expression, but this only partially explains the mechanism of antimigratory action. In summary, extracellular adenine nucleotides and adenosine inhibit THP-1 cell growth, cause death of cells and modulate the functioning of the SDF-1/CXCR4 axis. Thus, they negatively affect the processes that are responsible for the progression of AML and the difficulties in AML treatment.


Assuntos
Difosfato de Adenosina/análogos & derivados , Difosfato de Adenosina/farmacologia , Monofosfato de Adenosina/farmacologia , Trifosfato de Adenosina/análogos & derivados , Trifosfato de Adenosina/farmacologia , Adenosina/farmacologia , Leucemia Mieloide Aguda/patologia , Tionucleotídeos/farmacologia , Marcadores de Afinidade , Apoptose , Ciclo Celular , Movimento Celular , Proliferação de Células , Matriz Extracelular/metabolismo , Humanos , Leucemia Mieloide Aguda/tratamento farmacológico , Leucemia Mieloide Aguda/metabolismo , Células Tumorais Cultivadas
14.
J Appl Biomed ; 18(2-3): 61-69, 2020 08.
Artigo em Inglês | MEDLINE | ID: mdl-34907727

RESUMO

Insulin resistance (IR) is characterised by increased gluconeogenesis in the liver and the resistance of peripheral receptors to insulin. Several factors, including IR, type 2 diabetes, new-onset diabetes after transplant (NODAT) and secondary parathyroidism, are related to chronic kidney disease (CKD). These factors are associated with higher mortality due to the increased risk of cardiovascular complications. Many factors have been identified as potential markers of IR in CKD. These factors include fibroblast growth factors (FGFs), a subfamily of endocrine polypeptides. In this study, we examined the association of FGF19, FGF21 and FGF23 with selected parameters related to carbohydrate metabolism and insulin resistance in non diabetic patients with predialysis CKD and in non diabetic patients after renal transplantation. The study included 108 non diabetic subjects: 40 patients with predialysis CKD, 45 patients with CKD who had undergone renal transplantation, and 23 healthy subjects (control group). In patients who had undergone renal transplantation, concentrations of FGF23 were increased compared to the control group and patients with predialysis CKD. The highest and lowest FGF19 concentrations were observed in CKD patients and in patients who had undergone kidney transplantation, respectively. This difference was statistically significant. Leptin concentrations were higher in CKD patients compared to the control group and patients who had undergone kidney transplantation. There were no statistically significant differences in adiponectin concentrations, lean body mass or fat tissue mass between the studied groups. HOMA-IR and insulin levels were significantly increased in CKD patients and in patients who had undergone renal transplantation in comparison to the control group. The results of the study suggest the involvement of FGF in carbohydrate metabolism and insulin resistance in patients with predialysis CKD, as well as a correlation with kidney function.


Assuntos
Metabolismo dos Carboidratos , Fatores de Crescimento de Fibroblastos , Resistência à Insulina , Insuficiência Renal Crônica , Diabetes Mellitus Tipo 2/complicações , Feminino , Fator de Crescimento de Fibroblastos 23/metabolismo , Fatores de Crescimento de Fibroblastos/metabolismo , Humanos , Insulina/metabolismo , Masculino , Insuficiência Renal Crônica/complicações
15.
Horm Metab Res ; 51(10): 655-660, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31299695

RESUMO

Gestational diabetes mellitus (GDM) is a carbohydrate intolerance that occurs in women during pregnancy. The aims of this study were to develop a model to predict the risk of GDM development using common clinical parameters and selected genetic polymorphisms and to analyse the performance of the model using receiver operator characteristic (ROC) curves. ROC analysis was used to examine whether the evaluation of genetic polymorphisms may enhance the accuracy of GDM prediction in comparison to using common clinical risk factors only. This study included 204 pregnant women with GDM and 207 pregnant women with normal glucose tolerance. The diagnosis of GDM was based on a 75 g oral glucose tolerance test at 24-28 weeks gestation. The difference between the AUC of ROC curves for the model 1 including only age and BMI and the model 2 also including 8 genetic polymorphisms was highly significant (p=0.0001) in favour of model 2 (0.090±0.023). Moreover, the additional use of 8 genetic polymorphisms may increase both the sensitivity and specificity of GDM prediction by 10%. The results of this study indicate that the use of 8 genetic polymorphisms associated with carbohydrate and lipid metabolism and type 2 diabetes [PTGS2 (COX2) rs6681231, FADS1 rs174550, HNF1B rs4430796, ADIPOQ rs266729, IL18 rs187238, CCL2 rs1024611, HHEX rs5015480 and CDKN2A/2B rs10811661] together with clinical risk factors (BMI and age) may significantly improve the prediction of GDM.


Assuntos
Biomarcadores/análise , Diabetes Mellitus Tipo 2/diagnóstico , Diabetes Gestacional/diagnóstico , Predisposição Genética para Doença , Polimorfismo de Nucleotídeo Único , Adulto , Estudos de Casos e Controles , Dessaturase de Ácido Graxo Delta-5 , Diabetes Mellitus Tipo 2/genética , Diabetes Gestacional/genética , Feminino , Seguimentos , Estudos de Associação Genética , Genótipo , Humanos , Gravidez , Prognóstico , Fatores de Risco
16.
Kidney Blood Press Res ; 44(5): 1207-1218, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31614355

RESUMO

BACKGROUND: Chronic kidney disease (CKD) is the result of a reduced number of nephrons, in which adipose tissue and its metabolites play a significant role. Fibroblast growth factors, FGF19 and FGF21, are involved in lipid and carbohydrate metabolism. The aim of the study was to examine the concentrations of FGF19 and FGF21 in patients with CKD, as well as the correlation between FGF19 and FGF21 and selected biochemical parameters. MATERIALS AND METHODS: The study included 178 subjects: 52 patients with CKD in stages 2-4, without haemodialysis (CKD), 47 haemodialysed patients with CKD (HD), 56 patients with CKD after a renal transplantation (Tx) and 23 healthy subjects as the control group (C). RESULTS: The highest FGF19 serum concentrations were observed in CKD patients and the lowest were observed in the Tx group. Patients in the CKD group had significantly higher serum FGF21 concentrations. There were negative correlations between FGF19 and glomerular filtration rate (GFR), as well as high-density lipoprotein cholesterol levels in patients after kidney transplantation. Negative correlations were also found between serum FGF21 concentrations and GFR in patients after Tx, while positive correlations were observed between FGF21 concentrations and lean body mass in the CKD group, body mass index and total cholesterol in the HD group. CONCLUSIONS: Our results suggest that increased concentrations of FGF19 and FGF21 in patients with CKD may be associated with the metabolism of lipids and carbohydrates. Our results also indicate that haemodialysis and transplantation results in the reduction of FGF19 and FGF21 concentrations in patients with CKD.


Assuntos
Fatores de Crescimento de Fibroblastos/sangue , Insuficiência Renal Crônica/diagnóstico , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
17.
Scand J Clin Lab Invest ; 79(3): 202-207, 2019 May.
Artigo em Inglês | MEDLINE | ID: mdl-30822160

RESUMO

Pain is one of the most interdisciplinary clinical symptoms of a disease. The aim of the study was to evaluate the association of COMT gene polymorphism with pain perception in patients after total hip replacement (THR). The study included 195 patients qualified for surgical treatment (THR) due to osteoarthritis. Patients previously undergoing hip replacement subsequently underwent multimodal pain management therapy, in accordance with the recommendations for treating postoperative pain. The intensity of pain was measured three times at pre-defined time intervals: 1.5, 6 and 12 months after hip replacement, using the visual analogue scale. Single nucleotide polymorphism (SNP) in the COMT gene rs4680: A>G (Val158Met), rs6269: A>G (promoter region), rs4633: C>T (His62His) and rs4818: C>G (Leu136Leu) was genotyped. COMT SNP frequency distribution was analysed. For rs6269 and rs4818, the minor allele was the G allele (38.7 and 38.5%, respectively). It was also observed that rs4633 (T) allele frequency (50%) equalled that of the rs4680 (A) allele (50%). We assessed COMT haplotype frequency in the patients studied. The most frequent haplotype was haplotype M (ATCA) (50%), the rarest haplotype was haplotype R (ATGG), with a frequency of 0.3%. The most frequent diplotype was H/M, which was found in 37.95% of the patients. The frequency of other diplotypes was: M/M-24.10%, H/H-15.90% and L/M-13.33%. The study showed a significant association of rs4818 G allele and equivalent COMT H haplotype with lower sensitivity to pain after hip replacement.


Assuntos
Artroplastia de Quadril/efeitos adversos , Catecol O-Metiltransferase/genética , Estudos de Associação Genética , Predisposição Genética para Doença , Dor/etiologia , Dor/genética , Polimorfismo de Nucleotídeo Único/genética , Idoso , Alelos , Feminino , Frequência do Gene/genética , Haplótipos/genética , Humanos , Modelos Lineares , Masculino , Análise Multivariada , Escala Visual Analógica
18.
Int J Mol Sci ; 20(20)2019 Oct 11.
Artigo em Inglês | MEDLINE | ID: mdl-31614644

RESUMO

Glomerulonephritis (GN) represents a collection of kidney diseases characterized by inflammation within the renal glomeruli and small blood vessels. The lesions that occur in other nephron structures mainly result from the harmful effects of proteinuria. In recent years, an emphasis has been placed on gaining a better insight into the pathogenesis and pathophysiology of GN in order to facilitate diagnoses and provide efficient and targeted treatments of the disease. Owing to the advanced molecular and genetic diagnostic techniques available today, researchers have been able to elucidate that most cases of GN are determined by genetic risk factors and are associated with the abnormal functioning of the immune system (the immunologically mediated forms of GN). MicroRNAs (miRNAs) are a group of single-stranded, non-coding molecules, approximately 20 nucleotides in length, that act as regulatory factors in the post-transcriptional processes capable of regulating the expression of multiple genes. In this paper we present the available research aiming to determine effects of miRNAs on the development and progression of GN and discuss the potential role of miRNAs as new diagnostic markers and therapeutic targets.


Assuntos
Glomerulonefrite/diagnóstico , MicroRNAs/genética , Biomarcadores Tumorais , Regulação da Expressão Gênica , Redes Reguladoras de Genes , Predisposição Genética para Doença , Glomerulonefrite/tratamento farmacológico , Glomerulonefrite/genética , Humanos
19.
J Obstet Gynaecol ; 39(2): 151-156, 2019 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-30371117

RESUMO

Gestational diabetes mellitus (GDM) is a metabolic disorder occurring in pregnant women. The main risk factors include advanced age and obesity. FTO and IGF2BP2 are the genetic loci associated with an increased risk of diabetes type 2 as well as being involved in lipid and carbohydrate metabolism. The aim of this study was to examine the association of FTO rs8050136, IGF2BP2 rs4402960 and rs11705701 gene polymorphisms with GDM risk as well as with clinical parameters of women with GDM and their newborns. This study included 204 pregnant women with GDM and 207 pregnant women with normal glucose tolerance. The diagnosis of GDM was based on a 75 g oral glucose tolerance test administered at 24-28 weeks of gestation. There were no statistically significant differences in the distribution of the FTO rs8050136 and IGF2BP2 rs4402960 and rs11705701 genotypes between women with GDM and normoglycemic women. In the women with the IGF2BP2 rs4402960 TT and rs11705701 AA genotypes, we observed a longer gestation and higher Apgar scores than in the women with other genotypes. The results of this study suggest that FTO rs8050136 and IGF2BP2 rs4402960 and rs11705701 gene polymorphisms are not associated with the risk of GDM in our population, whereas IGF2BP2 rs4402960 and rs11705701 genotype status may affect the length of gestation and the Apgar scores of newborns. IMPACT STATEMENT What is already known on this subject? Gestational diabetes mellitus (GDM) is the glucose intolerance detected during pregnancy. The main risk factors include an advanced age and obesity. FTO and IGF2BP2 are the genetic loci associated with an increased risk of diabetes type 2, as well as being involved in lipid and carbohydrate metabolism. What do the results of this study add? In this study, we examined the association between FTO and IGF2BP2 gene polymorphisms and GDM. There were no statistically significant differences in the distribution of these genotypes between healthy women and women with GDM. However, we observed a longer duration of pregnancy and higher Apgar scores in women with IGF2BP2 rs4402960 TT and rs11705701 AA genotypes. What are the implications of these findings for clinical practice and/or further research? Although the FTO rs8050136 and IGF2BP2 rs4402960 and rs11705701 gene polymorphisms are not associated with the risk of GDM in our population, further studies of these genes may allow for better neonatal care and prediction of wellbeing of newborns.


Assuntos
Dioxigenase FTO Dependente de alfa-Cetoglutarato/genética , Diabetes Gestacional/genética , Proteínas de Ligação a RNA/genética , Índice de Apgar , Estudos de Casos e Controles , Feminino , Humanos , Gravidez
20.
Medicina (Kaunas) ; 55(12)2019 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-31847451

RESUMO

Background and Objectives: Chronic kidney disease (CKD) is an important public health problem associated with, e.g., progressive renal insufficiency, bone mineral disorders, and increased inflammatory marker levels. The objective of this study was to compare selected biochemical parameters and to evaluate potential correlations between selected anthropometric parameters and levels of sclerostin and interleukin 6 (IL-6) in blood plasma. Materials and Methods: The study group consisted of 34 patients aged 59.8 ± 9.8 years, receiving hemodialysis therapy. The control group consisted of 31 individuals aged 55.4 ± 9.37 years, presenting with GFR (glomerular filtration rate) of more than 60 mL/min/1.73 m2. Selected anthropometric and biochemical parameters were assessed at baseline, as well as 3 and 6 months into the study. Statistical analyses were performed using the Statistica 2014 software package (StatSoft, Inc.Tulsa, OK, USA). Analyses included descriptive statistics, intergroup comparisons using the Mann-Whitney U-test or the Kruskal-Wallis test, and Spearman's correlation analysis. The significance level was set at p ≤ 0.005. Results: At all measurement time points, i.e., at baseline, at month 3, and at month 6, the IL-6 levels in the study group were significantly higher than those in the control group. No correlations were observed in the study group between SCL or IL-6 levels and anthropometric parameters such as body weight, body mass index (BMI), or waist circumference. Conclusions: Patients receiving hemodialysis replacement therapy present with significantly higher levels of IL-6 in their blood. Anthropometric parameters (body weight, BMI, and waist circumference) have no impact on sclerostin and IL-6 levels in patients undergoing hemodialysis therapy. The results obtained are satisfactory, and the research will be continued.


Assuntos
Proteínas Adaptadoras de Transdução de Sinal/sangue , Inflamação/sangue , Interleucina-6/sangue , Diálise Renal , Insuficiência Renal Crônica/sangue , Adulto , Idoso , Antropometria , Biomarcadores/sangue , Feminino , Taxa de Filtração Glomerular , Humanos , Inflamação/fisiopatologia , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Insuficiência Renal Crônica/fisiopatologia , Insuficiência Renal Crônica/terapia
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