Ingestão alimentar em pacientes com doença inflamatória intestinal

The manganese transporter SLC39A8 links alkaline ceramidase 1 to inflammatory bowel disease

The metal ion transporter SLC39A8 is associated with physiological traits and diseases, including blood manganese (Mn) levels and inflammatory bowel diseases (IBD). The mechanisms by which SLC39A8 controls Mn homeostasis and epithelial integrity remain elusive. Here, we generate Slc39a8 intestinal epithelial cell-specific-knockout (Slc39a8-IEC KO) mice, which display markedly decreased Mn levels in blood and most organs. Radiotracer studies reveal impaired intestinal absorption of dietary Mn in Slc39a8-IEC KO mice. SLC39A8 is localized to the apical membrane and mediates 54Mn uptake in intestinal organoid monolayer cultures. Unbiased transcriptomic analysis identifies alkaline ceramidase 1 (ACER1), a key enzyme in sphingolipid metabolism, as a potential therapeutic target for SLC39A8-associated IBDs. Importantly, treatment with an ACER1 inhibitor attenuates colitis in Slc39a8-IEC KO mice by remedying barrier dysfunction. Our results highlight the essential roles of SLC39A8 in intestinal Mn absorption and epithelial integrity and offer a therapeutic target for IBD associated with impaired Mn homeostasis.

Deficiency of vitamin D and its relation with clinical and laboratory activity of inflammatory bowel diseases

Objective To evaluate the serum concentrations of vitamin D and their relation with inflammatory bowel diseases.

Methods This is a quantitative and descriptive study, with individuals assisted by the interdisciplinary ambulatory of Inflammatory Bowel Disease of the Family and Community Health Unit of Itajaí/SC from September 2015 to October 2016. Socioeconomic data, life habits, and biochemical tests were collected, with the use of clinical indexes of classification of the disease activity: Harvey-Bradshaw Index (Crohn's Disease) and Partial Mayo Score (Chronic Nonspecific Ulcerative Colitis).

Results Of the 60 patients evaluated, 57% (n = 34) had Crohn's Disease and 43% (n = 26) had Chronic Nonspecific Ulcerative Colitis. According to disease activity, 75% (n = 45) were in the remission phase, 13% (n = 8) had mild activity, and 9% (n = 5) had moderate activity. Regarding vitamin D, 63% (n = 38) had deficiency of this vitamin and 37% (n = 22) presented sufficiency. With the association of serum vitamin D concentrations and disease activity, we observed statistical significance among the variables (p = 0.005). Regarding biochemical exams, the majority of patients with fecal calprotectin elevation presented vitamin D deficiency (p = 0.025). Statistically significant correlation between HSV and vitamin D (p = 0.0001) was found.

Conclusion According to the findings of this study, vitamin D deficiency is related to the clinical and laboratory activity of inflammatory bowel diseases.

Quality of life of patients with inflammatory bowel disease

Rationale Crohn's disease and non-specific ulcerative colitis are part of inflammatory bowel diseases. They have a chronic evolution, leading to important repercussions on patients’ quality of life. Measuring this subjective parameter requires an evaluation tool in clinical trials and health programs. The “Inflammatory Bowel Disease Questionnaire” is an American instrument of McMaster University, which had its reproducibility and validity determined in studies in other countries as a measure of the quality of life in IBD.

Objective To evaluate the quality of life of patients with inflammatory bowel disease through the Inflammatory Bowel Disease Questionnaire, and to correlate the results with sociodemographic data of the patients.

Methods This is a prospective cross-sectional study carried out with 58 patients; the patients’ follow-up was conducted at the outpatient clinic of Coloproctology.

Results Among the 58 patients evaluated, 70.1% had DC, 62.1% were women, the mean age was 46.08 years, 96.6% were non-smokers, and 24.1% were submitted to surgery for the underlying disease. 43% were in a combination therapy scheme, 44% in monotherapy, and 12% were not using medication. Significant change in quality of life was observed in patients taking prednisone.

Conclusion The patients with better quality of life are those who were taking prednisone. There was no other correlation with significance in the patients’ quality of life.

An assessment of dietary intake, food avoidance and food beliefs in patients with ulcerative colitis of different disease status

Background/Aims

Ulcerative colitis (UC) is a chronic, relapsing and remitting inflammation of the gastrointestinal tract. Little is known about the link between dietary intake, food avoidance, and beliefs among UC patients of different disease severity. Therefore, this study aimed to assess the dietary intake, food avoidance, and beliefs among active and inactive UC patients.

Methods

A cross-sectional study was conducted among UC patients from a tertiary medical center in Kuala Lumpur, Malaysia. Demographic, anthropometric, dietary intake, food avoidance and beliefs were assessed. Disease activity of UC patients was evaluated using the Powell Tuck Index.

Results

UC patients were recruited (64.1% inactive UC and 35.9% active UC). As compared to inactive UC patients, active UC patients were likely to lose weight (75.0% vs. 0%), possess certain food beliefs (95.7% vs. 39.0%), and frequently practiced dietary avoidance (95.7% vs. 43.9%). The dietary intake among inactive UC patients was higher than active UC patients. However, neither of them met the standard nutrients recommendation for protein, calcium, iron, folate, zinc, vitamin D, vitamin B₁₂, and vitamin E.

Conclusions

Active UC patients had poorer dietary intake, were more prone to practicing food avoidance and exhibited certain food beliefs as compared to inactive UC patients. Both macro- and micronutrients intakes were inadequate regardless of patient’s disease status. These findings emphasized the importance for patients to be provided with the nutrition-related knowledge as part of strategies to avoid nutritional inadequacies.

QUALITY OF LIFE OF PATIENTS FROM A MULTIDISCIPLINARY CLINIC OF INFLAMMATORY BOWEL DISEASE

BACKGROUND

Inflammatory bowel disease encompasses pathological entities, the main being Crohn's disease and ulcerative rectocolitis. Both are characterized by chronic inflammation of the intestine. It affects young people of active age, compromising the situation of those patients, especially their quality of life, experiencing a strong deterioration in their clinical condition, from physical to social and emotional aspects.

OBJECTIVE

Evaluate the quality of life of patients assisted in the multidisciplinary reference outpatient clinic for the treatment of inflammatory bowel diseases, through sociodemographic data and specific questionnaires on the disease, evaluating the intestinal and systemic symptoms and the social and emotional aspects. Make a comparison between the two scales used to obtain the data.

METHODS

A cross-sectional study was carried out in which patients diagnosed with inflammatory bowel disease were evaluated and observed at a reference outpatient clinic for treatment from May 2017 through December 2018. The participants responded to the Socio-demographic and Clinical Protocol, the SF-36 general quality of life questionnaire and the specific Inflammatory Bowel Disease questionnaire, in addition the correlation between the two scales was performed using Pearson's Correlation (metric scale), which data were analyzed by means of descriptive statistics and the significance level adopted was 5% (P≤0.05). The population studied consisted of 71 patients, excluding pregnant or nursing women and patients under 18 years of age.

RESULTS

Seventy-one patients participated in the study, with an average age of 46.5 years and standard deviation of ±13.8; 45 patients had Crohn's disease and 26 were diagnosed with ulcerative rectocolitis; 73.2% were women; 64.8% married; 8.4%, smokers; 50.7% reported practising some type of physical activity. A good distribution of patients was observed between the domains of each questionnaire; no low scores were found for quality of life, and systemic symptoms and emotional aspects were those with the lowest scores among the parameters of the Inflammatory Bowel Disease Questionnaire; physical (40.6±44.4) and emotional aspects (49.5±46.0) had lower scores among the Short Form-36 domains. The correlation between the two questionnaires proved to be significant.

CONCLUSION

The clinical profile of the patients followed the characteristics of distribution and prevalence of these diseases. The impact of diseases on quality of life was observed in several aspects, especially those related to psychological components. Multidisciplinary follow-up, as well as psychological, social, nutritional and educational support should be considered important determinants to maintain or improve the quality of life of these patients.

A Personalised Dietary Approach-A Way Forward to Manage Nutrient Deficiency, Effects of the Western Diet, and Food Intolerances in Inflammatory Bowel Disease

This review discusses the personalised dietary approach with respect to inflammatory bowel disease (IBD). It identifies gene–nutrient interactions associated with the nutritional deficiencies that people with IBD commonly experience, and the role of the Western diet in influencing these. It also discusses food intolerances and how particular genotypes can affect these. It is well established that with respect to food there is no “one size fits all” diet for those with IBD. Gene–nutrient interactions may help explain this variability in response to food that is associated with IBD. Nutrigenomic research, which examines the effects of food and its constituents on gene expression, shows that—like a number of pharmaceutical products—food can have beneficial effects or have adverse (side) effects depending on a person’s genotype. Pharmacogenetic research is identifying gene variants with adverse reactions to drugs, and this is modifying clinical practice and allowing individualised treatment. Nutrigenomic research could enable individualised treatment in persons with IBD and enable more accurate tailoring of food intake, to avoid exacerbating malnutrition and to counter some of the adverse effects of the Western diet. It may also help to establish the dietary pattern that is most protective against IBD.