Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 29
Filtrar
1.
Pediatr Endocrinol Diabetes Metab ; 29(4): 225-230, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38318788

RESUMO

BACKGROUND: Although there are studies evaluating the psychological adjustment of healthy children when their siblings have type 1 diabetes mellitus (T1DM), no study evaluating their nutritional status exists. Thus, this study aimed to determine the nutritional status of children with T1DM and their healthy siblings. MATERIAL AND METHODS: Data from a control group, healthy siblings, and patients who were followed and treated for T1D in the Paediatric Gastroenterology and Paediatric Endocrinology outpatient clinics of the Health Sciences University Gülhane Medical Faculty between November 2019 and November 2020 were analysed and compared. The groups were compared in terms of nutritional characteristics, daily macro and micronutrient intakes and classified according to their body mass index (BMI) Z-scores. RESULTS: The study population consisted of 29 children with T1DM (51.7% female, 48.3% male; age: 11.00 ±3.66 years), 36 healthy siblings of children with T1D (50% female, 50% male; age: 9.61 ±4.84 years), and a control group of 58 healthy children (51.7% female, 48.3% male; age: 10.68 ±3.01years).The BMI Z-score of 28.6%of healthy siblings and 25% of children with T1D was > 1 SD or overweight. All of the control group children were of normal weight. None of the children were obese; however, the overweight rate was significantly higher in the healthy siblings and diabetes groups compared to the control group (p = 0.012). Daily energy intake (%) was significantly higher in the control group than in the healthy siblings (p < 0.001). CONCLUSIONS: A quarter of the children with T1D over five years of age were overweight. In addition, healthy siblings were found to have higher BMI Z-scores than controls. This is the first study to evaluate the nutritional status of siblings of patients with T1D and will hopefully lead to more comprehensive studies that will also assess their daily exercise and physical activity.


Assuntos
Diabetes Mellitus Tipo 1 , Estado Nutricional , Criança , Humanos , Masculino , Feminino , Adolescente , Pré-Escolar , Diabetes Mellitus Tipo 1/epidemiologia , Sobrepeso , Irmãos , Obesidade , Índice de Massa Corporal
2.
Dig Dis ; 40(3): 276-281, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-34010846

RESUMO

BACKGROUND: Most studies of the relationship between duodenogastric reflux (DGR) and Helicobacter pylori have reported that the presence of DGR decreases H. pylori colonization, while H. pylori infection increases the frequency of DGR by impairing antroduodenal motility. The present study aimed to investigate the relationship between primary DGR and the prevalence of H. pylori in children, as well as the degree of colonization and the presence and severity of gastritis. METHODS: Included in the study were 410 patients between the ages of 2 and 18 years, referred to the pediatric gastroenterology clinic with complaints of dyspepsia, abdominal pain, and nausea/vomiting, who underwent upper gastrointestinal system endoscopic examination and stomach biopsy. The study group included 60 patients with DGR, while 350 non-DGR patients formed the control group. RESULTS: The mean age of patients with DGR was 15.7 ± 2.1 years, while the mean age of the control group was 14.2 ± 3.8 years (p = 0.02). Of those with DGR, 50 (83.3%) were girls, while in the control group, 215 (61.4%) were girls (p = 0.001). Of patients with DGR, 16 were H. pylori (+) (26.7%), while in the control group, 168 were H. pylori (+) (48%) (p = 0.002). There was no significant difference between the 2 groups with respect to H. pylori degree of colonization (p = 0.08). Gastritis was present in 56 (93.3%) patients in the DGR group and 322 (92%) patients in the control group (p = 0.72). A significant difference was found between the 2 groups in terms of gastritis severity (p = 0.01). CONCLUSIONS: The mean age of patients with DGR was significantly higher than that of patients without DGR, and DGR was found to be more common in girls. In patients with DGR, H. pylori prevalence was significantly lower than in those without DGR; however, no significant difference was found between the 2 groups with respect to the colonization degree.


Assuntos
Refluxo Duodenogástrico , Gastrite , Infecções por Helicobacter , Helicobacter pylori , Adolescente , Criança , Pré-Escolar , Refluxo Duodenogástrico/diagnóstico , Refluxo Duodenogástrico/patologia , Endoscopia do Sistema Digestório , Feminino , Gastrite/complicações , Gastrite/epidemiologia , Gastrite/patologia , Infecções por Helicobacter/complicações , Infecções por Helicobacter/epidemiologia , Humanos , Masculino
3.
Pediatr Gastroenterol Hepatol Nutr ; 24(5): 483-491, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34557400

RESUMO

PURPOSE: Obesity has become a very significant health problem in childhood. Fructose taken in an uncontrolled manner and consumed in excessive amounts is rapidly metabolized in the body and gets converted into fatty acids. This single center prospective case-control study aims to investigate the relationship between fructose consumption and obesity and the role of fructose consumption in development of atherosclerotic diseases. METHODS: A total of 40 obese and 40 healthy children who were of similar ages (between 8 and 18 years) and sexes were included in the study. In the patient and control groups, the urine fructose levels, as well as the levels of oxidized low-density lipoprotein (LDL), small dense LDL, Apolipoprotein A and Apolipoprotein B values, which have been shown to play a role in development of atherosclerotic diseases, were measured. RESULTS: The levels of oxidized LDL and small dense LDL and the ratio of Apolipoprotein A/Apolipoprotein B were found to be significantly higher in the patient group. CONCLUSION: We found that urinary fructose levels were higher in the obese children than the healthy children. Our results suggest that overconsumption of fructose in children triggers atherogenic diseases by increasing the levels of small dense LDL and oxidized LDL and the ratio of Apolipoprotein B/Apolipoprotein A.

4.
Turk J Gastroenterol ; 32(3): 248-250, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-34160354

RESUMO

BACKGROUND: The aim of the study was to evaluate familial Mediterranean fever (FMF) mutation analysis in pediatric patients with inflammatory bowel disease (IBD). The relation between MEFV mutations and chronic inflammatory diseases has been reported previously. METHODS: Children with IBD (334 ulcerative colitis (UC), 224 Crohn's disease (CD), 39 indeterminate colitis (IC)) were tested for FMF mutations in this multicenter study. The distribution of mutations according to disease type, histopathological findings, and disease activity indexes was determined. RESULTS: A total of 597 children (mean age: 10.8 ± 4.6 years, M/F: 1.05) with IBD were included in the study. In this study, 41.9% of the patients had FMF mutations. E148Q was the most common mutation in UC and CD, and M694V in IC (30.5%, 34.5%, 47.1%, respectively). There was a significant difference in terms of endoscopic and histopathological findings according to mutation types (homozygous/ heterozygous) in patients with UC (P < .05). There was a statistically significant difference between colonoscopy findings in patients with or without mutations (P = .031, P = .045, respectively). The patients with UC who had mutations had lower Pediatric Ulcerative Colitis Activity Index (PUCAI) scores than the patients without mutations (P = .007). CONCLUSION: Although FMF mutations are unrelated to CD patients, but observed in UC patients with low PUCAI scores, it was established that mutations do not have a high impact on inflammatory response and clinical outcome of the disease.


Assuntos
Febre Familiar do Mediterrâneo , Doenças Inflamatórias Intestinais , Mutação , Adolescente , Criança , Colite Ulcerativa/epidemiologia , Colite Ulcerativa/genética , Doença de Crohn/epidemiologia , Doença de Crohn/genética , Febre Familiar do Mediterrâneo/genética , Humanos , Doenças Inflamatórias Intestinais/epidemiologia , Doenças Inflamatórias Intestinais/genética
6.
Turk J Pediatr ; 63(1): 118-125, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33686834

RESUMO

BACKGROUND: We aimed to investigate the relationship between human leukocyte antigens (HLA)-groups and clinical features, and degree of intestinal injury in children with celiac disease (CD). METHODS: Study group included 73 (50 females, 68.5%) children with CD. Demographic and clinical features, accompanying autoimmune diseases, family history for CD and degree of damage in small intestinal mucosa (according to Marsh classification) at the time of diagnosis were determined. Twenty-two siblings of celiac patients without CD (15 females, 65.2%) consisted control group 1, and 66 (40 females, 60.6%) people from the normal population consisted control group 2. RESULTS: The allele frequencies of HLA B8, B50, C6, C7, DR3, DR7, DQ2, and DR3 homozygosity were higher in the patient group. HLA DQ2 positivity was 89% in the patient group, 73.9 and 45.5% in control groups 1 and 2, respectively (p < 0.0001). HLA A30, C14, DR11, DQ3 frequency were lower in patients compared to both control groups. HLA-DR15 alleles in patient and control group 1 was significantly lower compared to the general population (p < 0.05). Thirty (41.1%) patients had typical, 43 (58.9%) patients had atypical presentation. Thirteen (17.8%) patients had other autoimmune diseases. There was no association between coexisting autoimmune diseases and the HLA antigens. Fifteen patients (20.5%) had a positive family history for CD; patients with HLA A69, B41 and C12 alleles had a higher positive family history (p < 0.05). Intestinal mucosal damage was as follows: 5 patients (6.8%) had Marsh 2, 25 (34.3%) Marsh 3a, 28 (38.4%) Marsh 3b, 15 (20.5%) Marsh 3c. Patients with HLA-DR15 alleles had more frequent Marsh 3a lesions (p < 0.05). CONCLUSIONS: B8, B50, C6, C7, DR3, DR7, DR3/DR3, DQ2 alleles were risk factors for CD in the Turkish population. HLA C14, DR11, DR15, and DQ3 alleles were found to have a protective role in the same population.


Assuntos
Doença Celíaca , Adolescente , Alelos , Doença Celíaca/diagnóstico , Doença Celíaca/epidemiologia , Doença Celíaca/genética , Criança , Feminino , Frequência do Gene , Antígenos HLA/genética , Humanos , Fatores de Risco
7.
Scand J Gastroenterol ; 56(4): 378-381, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33590788

RESUMO

OBJECTIVES: Serological markers are used in the diagnosis of celiac disease. Among these, the most widely used are tissue transglutaminase antibodies (anti-TG2 antibodies). It has been suggested that the mechanisms that are set in motion by malnutrition cause the tight connections between enterocytes to expand, which allows gluten-derived peptides to pass through the epithelium. This causes the production of anti-TG2 antibodies without the presence of celiac disease. METHODS: The patients who were examined for malnutrition and had their anti-TG2 antibody levels measured at the same time, were accepted into the study. The patients who were investigated for suspected celiac disease, showed no signs of malnutrition, and had their anti-TG2 antibody levels measured were accepted into a control group. RESULTS: The study population consisted of 126 children with mild malnutrition (54.8% female, 7.44 ± 5.38 years); 89 children with moderate malnutrition (54.8% female, 7.62 ± 5.43 years), and a control group of 200 children (53.2% female, 7.72 ± 5.05 years). According to the results, anti-TG2 IgG levels were significantly higher among patients in the mild and moderate malnutrition groups compared to patients in the control group (p = .02 and p = .01, respectively). However, there was no significant difference between the mild and moderate malnutrition groups (p > .05). CONCLUSIONS: Malnutrition does not affect anti-TG2 IgA levels in children. However, anti-TG2 IgG levels increase in children suffering from malnutrition. When examining celiac disease, especially in people with a background IgA deficiency, doctors should consider whether malnutrition may be the cause of the increase in serum anti-TG2 IgG levels without celiac disease.


Assuntos
Doença Celíaca , Desnutrição , Autoanticorpos , Doença Celíaca/complicações , Criança , Feminino , Proteínas de Ligação ao GTP , Humanos , Imunoglobulina A , Masculino , Desnutrição/diagnóstico , Proteína 2 Glutamina gama-Glutamiltransferase , Reprodutibilidade dos Testes , Transglutaminases
8.
Nutr Clin Pract ; 36(6): 1220-1229, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-33047836

RESUMO

BACKGROUND: Success in long-term enteral feeding is, in part, dependent on careful selection of the appropriate enteral access device and placement technique together with proper maintenance and care. This study was conducted to evaluate the effect of education on satisfaction with gastrostomy tube feeding, quality of life, caregiver burden, and anxiety. METHODS: A quasi-experimental, pretest and posttest research design without a control group was used. A total 78 mothers were included in the study. The child and parent data form, Zarit Caregiver Burden Scale, Satisfaction Questionnaire with Gastrostomy Feeding (SAGA-8), State-Trait Anxiety Inventory (STAI), 36-Item Short-Form quality-of-life scale (SF-36), complication control form, and the gastrostomy care skill assessment checklist were used. RESULTS: There was a significant decrease in participants' burden as caregivers (anxiety, P < .001) and a significant increase in positive outcomes in caregivers' satisfaction with gastrostomy feeding and in the physical component summary and mental component summary scores (P < .05). Posteducation, the mean score of subdimensions showed increases (P < .05). CONCLUSION: The intervention increased positive outcomes and decreased negative outcomes for caregivers during the first 3 months postgastrostomy placement.


Assuntos
Nutrição Enteral , Gastrostomia , Cuidadores , Criança , Feminino , Humanos , Pais , Qualidade de Vida
9.
J Pediatr Gastroenterol Nutr ; 72(4): 511-513, 2021 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-33306581

RESUMO

OBJECTIVES: Novel coronavirus 2019 (corona virus disease 2019 [COVID-19]) binds angiotensin-converting enzyme-2 (ACE-2) receptors to enter the cell. These receptors are widely expressed in the intestine, and COVID-19 may cause gastrointestinal symptoms via these receptors during the course of the disease. Helicobacter pylori is known to increase the expression of ACE-2 receptors in the gastrointestinal tract. The aim of this study was to investigate the effects of H pylori on the presentation and clinical course of COVID-19 infections. METHODS: This study was carried out from June 1 to July 20, 2020. Patients diagnosed with COVID-19 infections by PCR tests were included in the study. Antigen screening tests were performed on stool samples to determine the presence of H pylori. All patients were evaluated for manifestations of COVID-19 infection, severity of the course, hospitalized days because of the virus and outcome of the disease process. RESULTS: Of 108 COVID-19 positive patients evaluated, 31 with a mean age of 49.54 ±â€Š17.94 years were H pylori-positive (8 girls [25.8%]) and 77 with a mean age of 47.85 ±â€Š20.51 years; (31 girls [40.3%]) were H pylori-negative. Abdominal pain (19.4% vs 2.6%) and diarrhea (32.3% vs 9.1%) were significantly higher in patients with H pylori than those without (P = 0.007 and P = 0.006, respectively). There was no statistically significant difference between H pylori positivity and the number of hospitalized days, the severity of the course of COVID-19 infection, or the outcome of the disease (P > 0.05). CONCLUSION: Our results revealed that the findings of abdominal pain and diarrhea strongly correlated with the presence of H pylori in COVID-19 patients.


Assuntos
Dor Abdominal/etiologia , COVID-19/complicações , Diarreia/etiologia , Infecções por Helicobacter/complicações , Helicobacter pylori , Dor Abdominal/microbiologia , Adulto , Idoso , Enzima de Conversão de Angiotensina 2/metabolismo , Diarreia/microbiologia , Feminino , Infecções por Helicobacter/microbiologia , Hospitalização , Humanos , Masculino , Pessoa de Meia-Idade , SARS-CoV-2 , Índice de Gravidade de Doença
10.
Helicobacter ; 25(6): e12757, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-32939900

RESUMO

BACKGROUND: Eradication rates of Helicobacter pylori (H pylori) with standard triple therapy are gradually decreasing all over the world, including in children, due to the development of strains resistant to antimicrobials. Sequential therapy can be used as an alternative method to increase eradication rates. MATERIALS AND METHODS: A total of 75 patients ≥ 8 years of age with H pylori gastritis were included in the study. According to Rome IV criteria, 38 patients had functional abdominal pain and dyspepsia, and 37 patients had alarm findings suggesting organic disease. Patients were treated with a novel sequential therapy consisting of the proton pump inhibitor (PPI)-lansoprazole (1 mg/kg/day, maximum 30 mg daily), amoxicillin (50 mg/kg/d in two doses, maximum 2 × 1000 mg) for 7 days followed by PPI-lansoprazole (1 mg/kg/d, maximum 30 mg daily), metronidazole (20 mg/kg/day in two doses, maximum 2 x 500 mg), tetracycline (50 mg/kg/d divided into four equal doses, maximum 4 x 500 mg), and bismuth subsalicylate (262 mg QID in patients ≤ 10 years of age, 524 mg QID in patients > 10 years of age in days 8-14). Eradication status was evaluated by H pylori stool antigen test 8 weeks after the completion of treatment. RESULTS: The mean age of the patients was 15.1 ± 2.4 years and 51 (68%) were female. No patient discontinued therapy due to side effects. All patients had antral gastritis (76.0%) or pangastritis (24.0%). The peptic ulcer rate was 6.6%. Eradication therapy was given to all patients with or without peptic ulcer. H pylori eradication was achieved in 69 (92.0%) patients and symptoms improved in 61 of those eradicated. CONCLUSIONS: As a first-line treatment for H pylori eradication in children, administering a novel sequential therapy including bismuth for 14 days provides a high rate of eradication.


Assuntos
Antibacterianos , Bismuto , Infecções por Helicobacter , Adolescente , Amoxicilina/uso terapêutico , Antibacterianos/uso terapêutico , Bismuto/uso terapêutico , Criança , Claritromicina/uso terapêutico , Quimioterapia Combinada , Feminino , Infecções por Helicobacter/tratamento farmacológico , Helicobacter pylori , Humanos , Metronidazol/uso terapêutico , Resultado do Tratamento , Turquia
11.
Helicobacter ; 21(1): 35-9, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25982543

RESUMO

BACKGROUND: The purpose of this study was to evaluate the association between vitamin B12 levels and Helicobacter Pylori infection and to examine the clinical usefulness of holotranscobalamin (holoTC) measurement in children. MATERIALS AND METHODS: Thirty patients between 6 and 15 years of age, who were diagnosed as H. pylori infected by C(14) urea breath test, and 26 controls were enrolled in the study. Tests for complete blood count, serum vitamin B12 and folate, plasma total homocysteine, and holoTC levels were performed in each patient in the study and control groups. RESULTS: Mean plasma holoTC concentrations were significantly lower in children with H. pylori infection before treatment (median 23.7 pmol/L (12.9-37.1 pmol/L)) versus after treatment (median 38.2 pmol/L (21.2-61.4 pmol/L)) and controls (median 36.1 pmol/L (12.6-58.7 pmol/L)). CONCLUSIONS: The findings of our study suggest that H. pylori infection has a reversible negative effect on vitamin B12 status reflected in a decreased level of plasma holoTC that normalizes upon treatment of the infection, while no change is observed in total plasma vitamin B12 .


Assuntos
Infecções por Helicobacter/sangue , Helicobacter pylori/fisiologia , Vitamina B 12/sangue , Adolescente , Criança , Feminino , Ácido Fólico/sangue , Infecções por Helicobacter/microbiologia , Humanos , Masculino
12.
Turk J Pediatr ; 57(4): 374-9, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-27186700

RESUMO

This study was planned to investigate the amount and content of foods consumed by child patients with celiac disease on a long-term gluten-free diet. Children aged 3-18 years who were diagnosed with celiac disease according to ESPGHAN criteria and were compliant to the gluten-free diet for at least one year were included. Age and gender matched healthy children were included as the control group. Food consumption records including the amount and content of the foods consumed for a total of three days were obtained. Once the records had been completed on the food consumption form, quantity analysis was again performed by the same dietician. Energy and other nutritional elements taken in through foodstuffs consumed by the patient and control groups were calculated using the Nutrition Data System for Research Package; these results were shown as mean ± standard deviation (x ±SD) and the values compared. The study consisted of 28 patients with a mean age of 10.3 ± 4.6 and 25 healthy controls with a mean age of 9.5 ± 3.4. Average age at diagnosis in the patient group was 6.7 ± 4.3 and mean duration of gluten-free diet was 4.0 ± 3.3 years. Children with celiac disease on a gluten-free diet had significantly lower daily energy intake levels compared to the healthy controls (p<0.05). The proportional fat consumption was significantly higher in the patient group compared to the controls (p<0.05). Moreover, proportional carbohydrate and protein, vitamin E and vitamin B1, and microelements such as magnesium, phosphorus and zinc consumptions were significantly lower in celiac group with respect to v-control group. Solely determining compliance to the gluten free diet might be inadequate in the follow-up of children with celiac disease, adequacy of the nutritional content in terms of macro and micronutrients of celiac disease patients is also important.


Assuntos
Doença Celíaca/dietoterapia , Dieta Livre de Glúten , Comportamento Alimentar , Alimentos/estatística & dados numéricos , Cooperação do Paciente/estatística & dados numéricos , Adolescente , Criança , Pré-Escolar , Feminino , Humanos , Masculino , Estado Nutricional
13.
Turk J Gastroenterol ; 24(5): 382-6, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24557960

RESUMO

BACKGROUND/AIMS: Sequential therapy is one of the recent answers given to the problem of increasing antibiotic resistance and decreasing eradication rates of Helicobacter pylori infection. The aim of this study is to compare the ornidazole-based sequentialtherapy with the standard triple therapy in Helicobacter pylori eradication. MATERIALS AND METHODS: Children aged 4-18 years diagnosed with Helicobacter pylori infection based on histology and at least one of 13 C urea breath test and rapid urease test positivity were included in the study. Children were randomized to standard triple therapy with amoxicillin, clarithromycin, and lansoprazole for 14 days and sequential therapy with amoxicillin and lansoprazole for the first 5 days and clarithromycin, ornidazole and lansoprazole for another 5 days in 2:3 randomization. At the end of the treatment, families were contacted by phone, and side effects of and the compliance to the treatment were noted. Patients were requested to do 13 C urea breath test 6-8 weeks after the treatment. RESULTS: Sixty-one children were included for the final analysis. Per-protocol eradication rates were 48.6% for sequential therapy group and 54.2% for standard triple therapy group. Intention to treat eradication rates were 40.9% and 46.0%, respectively. There were no differences between eradication rates in the two study groups. Side effect rates were also similar between the two groups. CONCLUSIONS: Ornidazole-based sequential therapy did not show any superiority compared to the standard triple treatment in children with Helicobacter pylori infection.


Assuntos
Antibacterianos/uso terapêutico , Infecções por Helicobacter/tratamento farmacológico , Helicobacter pylori , Ornidazol/uso terapêutico , Inibidores da Bomba de Prótons/uso terapêutico , Adolescente , Criança , Pré-Escolar , Quimioterapia Combinada , Feminino , Humanos , Masculino , Falha de Tratamento
14.
Nutrition ; 29(1): 138-42, 2013 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-23116775

RESUMO

OBJECTIVE: Iron supplementation is commonly recommended for infants; however, there are some reports that it causes oxidative damage. The aim of this study was to investigate the potential effects of iron supplementation at 4 mo of age, for a period of 2 mo, on lipid peroxidation and free radical scavenging enzymes. METHODS: Twenty-seven healthy 4-mo-old infants chosen randomly and given iron supplementation (ferrous sulfate, 10 mg of elemental iron per day) constituted the study group and 26 healthy 4-mo-old infants who were chosen randomly and not given iron supplementation constituted the control group. Weight, height, head circumference, complete blood cell count, serum ferritin level and intraerythrocytic zinc, iron, copper, malondialdehyde, catalase, superoxide dismutase, and glutathione peroxidase levels were measured in the two groups at 4 and 6 mo of life. RESULTS: Compared with controls at 6 mo of age, no significant differences were observed for intraerythrocytic zinc (0.5 ± 0.1 versus 0.6 ± 0.2 µg/mL, P > 0.05), copper (0.2 ± 0.1 versus 0.2 ± 0.2 µg/mL, P > 0.05), iron (130.8 ± 10.9 versus 127.4 ± 11.1 µg/mL, P > 0.05), malondialdehyde (21.4 ± 3.5 versus 22.4 ± 2.3 nmol/g of hemoglobin, P > 0.05), catalase (135.4 ± 23.9 versus 135.1 ± 23.3 MU/g of hemoglobin, P > 0.05), superoxide dismutase (1736.4 ± 141.1 versus 1701.3 ± 103.9 U/g of hemoglobin, P > 0.05), and glutathione peroxidase (8.9 ± 1.6 versus 8.4 ± 1.6 U/g of hemoglobin, P > 0.05) levels. CONCLUSION: Our study indicates that the supplemental use of elemental iron 10 mg/d for a period of 2 mo in healthy iron-replete infants did not cause lipid peroxidation or an impairment of antioxidant status.


Assuntos
Antioxidantes/metabolismo , Ferro da Dieta/efeitos adversos , Peroxidação de Lipídeos/efeitos dos fármacos , Catalase/sangue , Cobre/sangue , Suplementos Nutricionais/efeitos adversos , Eritrócitos/efeitos dos fármacos , Eritrócitos/metabolismo , Feminino , Ferritinas/sangue , Compostos Ferrosos/administração & dosagem , Compostos Ferrosos/efeitos adversos , Sequestradores de Radicais Livres/metabolismo , Glutationa Peroxidase/sangue , Humanos , Lactente , Ferro/sangue , Deficiências de Ferro , Ferro da Dieta/administração & dosagem , Masculino , Superóxido Dismutase/sangue , Zinco/sangue
15.
Turk J Gastroenterol ; 23(5): 503-8, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-23161294

RESUMO

BACKGROUND/AIMS: The aim of this study was to compare the fecal calprotectin concentration in children with newly diagnosed celiac disease, children with celiac disease strictly adhering to a gluten-free diet and healthy controls. We also tried to correlate the fecal calprotectin concentration with the clinical presentation, degree of neutrophilic infiltration and the severity of histopathological injury (Marsh grade) in the small bowel mucosa. MATERIAL AND METHODS: The study included three groups: children with untreated celiac disease, children with treated celiac disease, and healthy controls. Moreover, we obtained a second fecal sample from nine newly diagnosed children when their endomysial antibody became negative after gluten-free diet. RESULTS: Fecal calprotectin concentrations were significantly higher in newly diagnosed celiac patients (n=31) compared to patients on gluten-free diet (n=33) and healthy controls (n=34) (117.2 µg/g (3.2-306) vs. 3.7 µg/g (0.5-58.2) and 9.6 µg/g (1-70), respectively, p<0.001). Patients presenting with gastrointestinal symptoms had higher fecal calprotectin concentration compared to the patients presenting with nongastrointestinal symptoms [142.8 (12.2-306) vs. 79.7 (3.2-243.2) respectively, p=0.04]. Nine newly diagnosed patients gave a second fecal sample after starting gluten-free diet when endomysial antibody became negative. Their fecal calprotectin concentration had decreased from 113.7 µg/g (8.7-295.2) to 4.2 µg/g (0.5-20.7) (p<0.01). CONCLUSIONS: Increased fecal calprotectin concentration can be used as a non-invasive marker that might aid in the diagnosis of celiac disease, especially in patients with gastrointestinal presentation. Fecal calprotectin concentration returns to normal on a strict gluten-free diet. Fecal calprotectin may be used as a marker of diet adherence and improvement in gastrointestinal inflammation in children with celiac disease. Additionally, it may be used for the differentiation of celiac disease from functional disorders of the gastrointestinal system.


Assuntos
Doença Celíaca/diagnóstico , Fezes/química , Mucosa Intestinal/patologia , Complexo Antígeno L1 Leucocitário/análise , Biópsia , Doença Celíaca/metabolismo , Criança , Diagnóstico Diferencial , Feminino , Humanos , Masculino , Estudos Retrospectivos
17.
Eur J Clin Pharmacol ; 68(5): 629-36, 2012 May.
Artigo em Inglês | MEDLINE | ID: mdl-22076562

RESUMO

PURPOSE: Lansoprazole, a cytochrome P450 2C19 (CYP2C19) substrate, has been widely used in children to manage acid-related diseases. CYP2C19 exhibits marked genetic polymorphisms, and distribution of these polymorphisms varies among different ethnic groups. There is limited data regarding the use of probe drugs for determining CYP2C19 activity in children. The aim of this study was to evaluate lansoprazole as an in vivo phenotyping probe for assessing CYP2C19 activity in children. METHODS: The CYP2C19*2, *3, and *17 variants were determined in 244 children. Three hours after a single oral dose of lansoprazole (n = 94) or omeprazole (n = 19), plasma lansoprazole and 5-hydroxy lansoprazole or omeprazole and 5-hydroxy omeprazole concentrations were analyzed by high-performance liquid chromatography. RESULTS: The CYP2C19*17 was the most frequent variant allele (24.4%). The group of patients with CYP2C19*17*17 genotype had a 70% lower (p < 0.05) mean lansoprazole plasma concentration compared with the CYP2C19*1*1 genotype group, whereas the CYP2C19*2*2 group had 6.9-fold higher (p < 0.01) mean lansoprazole plasma concentration. Lansoprazole metabolic ratios (lansoprazole/5-hydroxy-lansoprazole) were found to be significantly lower in the *17*17 [mean ± standard deviation (SD); 2.8 ± 2.1] group and higher in the *2*2 group (63.5 ± 12.2) compared with that of the *1*1 genotype group (6.1 ± 4.5). CONCLUSION: According to our results from a Turkish pediatric population, lansoprazole is a suitable probe drug for phenotyping CYP2C19. The CYP2C19*2 and *17 variants should be taken into consideration in predicting the clinical outcome of therapy with lansoprazole in the pediatric population.


Assuntos
2-Piridinilmetilsulfinilbenzimidazóis/farmacocinética , Hidrocarboneto de Aril Hidroxilases/genética , Hidrocarboneto de Aril Hidroxilases/metabolismo , Farmacogenética/métodos , Polimorfismo Genético , Inibidores da Bomba de Prótons , Inibidores da Bomba de Prótons/farmacocinética , 2-Piridinilmetilsulfinilbenzimidazóis/sangue , Adolescente , Biotransformação , Criança , Pré-Escolar , Citocromo P-450 CYP2C19 , Feminino , Frequência do Gene , Estudos de Associação Genética , Hospitais Pediátricos , Humanos , Lansoprazol , Masculino , Omeprazol/sangue , Omeprazol/farmacocinética , Inibidores da Bomba de Prótons/sangue , Turquia
18.
Turk J Pediatr ; 53(3): 314-6, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21980814

RESUMO

Celiac disease (CD) usually presents with diarrhea and growth retardation in childhood. Obesity is one of the paradoxical conditions in children with CD. We present two adolescents with CD and obesity. One of these patients was diagnosed as CD with malnutrition. His body weight had returned to normal after a gluten-free diet, and after stopping the diet, he had become obese. The second patient was an obese adolescent presenting with dyspeptic symptoms who was diagnosed as CD. Although rare, pediatricians should remember that obesity might be seen in CD before or after the diagnosis.


Assuntos
Doença Celíaca/complicações , Obesidade/complicações , Adolescente , Doença Celíaca/diagnóstico , Doença Celíaca/dietoterapia , Feminino , Humanos
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...