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A partir del caso de una paciente con síndrome de intestino irritable a predominio de estreñimiento cuyos síntomas mejoraron con el consumo regular de kiwi, el médico de familia se planteó la pregunta de si el kiwi podría mejorar los síntomas asociados a constipación crónica en comparación con el tratamiento habitual. Tras realizar una búsqueda de estudios que analizaran los efectos del consumo de kiwi sobre el hábito intestinal, fueron seleccionados tres artículos que permiten concluir que el consumo de esta fruta tiene una eficacia superior al placebo y comparable al psyllium y las pasas de ciruela para mejorar los síntomas de personas con estreñimiento crónico. (AU)

Based on the case of a patient with constipation-predominant irritable bowel syndrome whose symptoms improved with regular consumption of kiwi, the family doctor wondered if kiwi could improve symptoms associated with chronic constipation compared to usual treatment. After conducting a search for studies that analyzed the effects of kiwi consumption on intestinal habit, three articles were selected that allow us to conclude that the consumption of this fruit has an efficacy superior to placebo and comparable to psyllium and plum raisins to improve the symptoms of people with chronic constipation. (AU)

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A randomised clinical trial was conducted on 20 healthy, low-habitual fibre consumers to assess the short-term effects of water intake (2 l/day) on fibre supplementation with wheat bran, pectin, and green banana flour. During the 14-days trial, fibre intake doubled in both fibre (n = 10) and fibre/water (n = 10) interventions (p < 0.001), whereas daily water intake increased from 538 to 1990 ml in the fibre/water group (p < 0.001). Weekly bowel movements increased similarly in both interventions (fibre: 6.8-8.8; fibre/water: 8.6-10; p < 0.01), while faecal weight (71-126 g; p = 0.009) increased in the fibre/water group. This group showed higher counts of faecal Bacteroides and Prevotella, Faecalibacterium prausnitzii, and Bifidobacterium, whereas both interventions decreased the count of Desulfovibrio. Transient abdominal symptoms occurred less frequently in the fibre/water than in the fibre group (3 vs. 9 participants; p = 0.020). In healthy, low-habitual fibre consumers, short-term water intake helps the intestinal adaptation to fibre supplementation.CLINICAL TRIAL REGISTRATION NUMBER: NCT02838849.

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OBJECTIVE: Few data exist on natural history of irritable bowel syndrome (IBS) in children; therefore we investigated symptoms evolution over time in a cohort of children with IBS. STUDY DESIGN: In this observational, single-center study, we prospectively enrolled newly diagnosed children with IBS and reassessed them after 24 months. At both time points, patients completed a symptoms questionnaire, and a score of stool consistency was obtained. The therapeutic strategy adopted was also recorded. RESULTS: Eighty-three children (age 11 years, range, 4-16.6 years; 53 males) completed the study. Forty-seven (56.6%) patients received no medical treatment, whereas polyethylene glycol, probiotics, and trimebutine were prescribed to 9 (10.8%), 24 (28.9%), and 3 (3.6%) subjects, respectively. Twenty-four months after diagnosis, 48 children (57.8%) reported resolution of symptoms (P <.001), without differences between sexes (P = .35) or among IBS subtypes (P = .49). Of these, 30 (62.5%) had been only reassured and 18 (37.5%) had been prescribed medical treatment (P = .26). Despite not being statistically significant, symptoms resolution was more common in patients receiving no medical treatment than in those receiving probiotics (63.8% vs 41.6%, P = .08). Among patients with constipation-IBS, no difference was found in symptoms resolution between patients receiving polyethylene glycol and those receiving no medical treatment (67% and 40%, respectively, P = 1). CONCLUSIONS: Children with IBS are likely to show spontaneous symptoms resolution over a 24-month follow-up, regardless of sex, age, impact of symptoms on daily activities, and IBS subtypes.

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Introducción: La función evacuatoria y sus alteraciones constituyen un motivo de consulta muy frecuente. En Venezuela no disponemos de información para definir cuál es el patrón intestinal normal de nuestra población, ni de la frecuencia con que se presentan dichas alteraciones.Objetivo: Evaluar el hábito intestinal en una población de personal hospitalario, entre 18 a 70 años, del Hospital “Dr. Domingo Luciani” entre abril - septiembre del 2008.Método: Es un estudio descriptivo y transversal en el que participaron 507 trabajadores del hospital, a los cuales se les practicó una encuesta personalizada.Resultados: Participaron 380 (75 %) mujeres y 127 (25 %) hombres con una edad 39,2 ±10 años. El 51,1% son universitarios. Menos de la mitad consumen medicamentos o sufren de enfermedades. La mayoría no fuma e ingiere menos de 2 litros de agua/día. El 73,4 % evacúa diariamente, una vez/día y en la mañana, con heces tipo 3. 12 (2,36 %) presentan constipación según ROMA III, edad 39 años, femenino, la mayoría son TSU y enfermeras (p=0,03) e ingieren menos de 2 litros de agua/día, consumen algunas veces frutas y cereales y muy poco realizan ejercicios. Los síntomas predominantes fueron: dispepsia, dolor y distensión abdominal, dolor al evacuar y sensación de evacuación incompleta. Todos evacuan heces tipo 1 y el 41,66 % empleo laxantes. El 50 % manifestó algún grado de alteración de su calidad de vida.Conclusiones: El hábito intestinal de nuestra población se caracterizó por frecuencia evacuatoria diaria, una vez/día; heces tipo 3 y 4, sin sensación de evacuación incompleta, dolor o esfuerzo al evacuar.

Introduction: Bowel function and related disorders are common consulting problems. Because in Venezuela we lack of adequate information to define both bowel normal habit and the frequency of its alterations in our population we decided to perform this study. Objective: To assess bowel function of the “Dr. Domingo Luciani” hospital staff between April and September of 2008.Method: In a descriptive and transversal study, we apply a personalized survey to all the hospital staff who participated.Results: 507 hospital staff members were studied. 380 females (75 %) /127 males (25 %). The average age was 39,2 ±10 years. The 51,1% have an universitary degree, and less than half used medications or suffer diseases. Most of them were no smokers and drink less than 2 liters of water per day. The 73,4 % of the subjects passed a stool on a daily basis, in the morning with feces type 3. 12 patients (2,36 %) had constipation according to Roma III criteria. In those subjects predominant symptoms were: dyspepsia, abdominal pain and bloating, pain during evacuation and incomplete evacuation sensation. All had a type I stool pattern and the 41,66 % used laxatives regularly. The 50 % exhibit some degree of quality of life impairment. Average age in this group was 39 years, female sex, nurses and Higher University Technicians (p=0, 03). They drink less than 2 liters of water/day, sometimes consume fruits and cereals and do very little exercise

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A cada dia cresce o interesse por alimentos ricos em carboidratos não disponíveis em virtude da relação inversa entre seu consumo e o risco de doenças crônicas não transmissíveis (DCNT). No presente trabalho, foi avaliado o potencial fisiológico da farinha de banana verde (FBV) como ingrediente funcional. Em ratos adultos, foi realizado ensaio de média duração (28 dias) para avaliação do efeito trófico da FBV sobre o intestino grosso e de parâmetros relacionados à tolerância à glicose. Em humanos, foram realizados ensaios clínicos de curta e média duração para avaliação dos efeitos sobre resposta glicêmica; liberação de hormônios gastrintestinais relacionados à saciedade; status antioxidante; fome e saciedade; e funcionamento intestinal. A FBV foi produzida com banana verde, Musa acuminata, de acordo com patente depositada pelo grupo (Patente (RPI - 1941), 2008). A FBV é uma fonte concentrada de carboidratos não disponíveis, com 56% de AR e 8% de FAT na base integral. A adição de FBV nas rações provocou efeito trófico no ceco dos animais, evidenciado por aumento no índice metafásico, número de células da cripta e profundidade das criptas. Além disso, a ração com FBV proporcionou melhora nos parâmetros relacionados à tolerância à glicose. Em voluntários saudáveis, a ingestão de uma única refeição adicionada de 8 g de FBV proporcionou aumento na saciedade e boa correlação entre os parâmetros fome/saciedade e níveis plasmáticos de grelina e insulina, melhorou o funcionamento intestinal, além de resultar em alta fermentabilidade in vitro em relação à lactulose. Após ingestão diária da FBV por 14 dias, os resultados da ingestão de RC0 (refeição controle antes do tratamento) e de RC14 (RC0 após 14 dias de tratamento) mostraram que ocorre melhora na tolerância à glicose, evidenciada pela menor liberação de insulina durante o GTT. O efeito positivo sobre funcionamento intestinal, sobre saciedade e sobre liberação de hormônios gastrintestinais no plasma permaneceu...

The study of unavailable carbohydrates has been of great concern due to their inverse relation with the risk for non-transmissible chronic diseases (NTCD). In the present study, the functional potential of unripe banana flour (UBF) was evaluated. In rats, a medium-term assay was carried in order to evaluate parameters related to glucose tolerance and the trophic effect of UBF on the large bowel. In healthy volunteers, short and medium-term clinical assays were carried to evaluate the effects of UBF on glycemic response; release of gastrointestinal hormones related to satiety (ghrelin, leptin and insulin); antioxidant status; hunger and satiety; and intestinal health. UBF was produced with unripe banana, Musa acuminata, subgroup Cavendish, maturation stage I, in industrial scale and according to a patent deposited by the group (Patent (RPI - 1941), 2008). UBF is a concentrated source of unavailable carbohydrates, with 56% RS and 8% DF (wet weight). Adding UBF in rat rations resulted in a trophic effect in the animals' cecum, which was evidenced by increase in the metaphasic index, number of crypt cells and crypt depth. Moreover, the ration with UBF resulted in better glucose tolerance parameters. In healthy volunteers, adding UBF (8 g) to an only meal provided significant satiety and good correlation between the parameters hunger/ satiety and plasmatic levels of ghrelin and insulin, improved bowel habit, as well as resulted in high in vitro fermentability in relation to lactulose. After daily intake of UBF for 14 days, the results of the intake of RC0 (control meal before treatment) and RC14 (RC0 after 14 days treatment) showed that there is a positive post-prandial variation in the plasmatic concentrations of gastrointestinal hormones, as well as improvement in glucose tolerance, evidenced by lower insulin release during GTT. The positive effect on bowel habit, satiety and release of gastrointestinal hormones in plasma was kept after prolonged intake of UBF...

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