La diarrea inducida con lactosa es mas severa, prolongada y produce mayores pérdidas fecales de macronutrientes en ratas cecotomizadas que en ratas intactas / Lactose-induced diarrhea is more severe, last longer and produces more fecal macronutrient losses in cecectomized than in intact rats

La diarrea inducida con lactosa en ratas ha servido para estudiar la alimentación durante la diarrea. Sin embargo, las ratas se adaptan al consumo de lactosa por lo que la diarrea dura aproximadamente una semana. Para establecer si la remoción del ciego podría prolongarla, aquí se comparó esta diarrea en ratas intactas y cecotomizadas. El experimento incluyó 16 ratas intactas y 16 cecotomizadas. A la mitad de las ratas en cada grupo se les ofreció una dieta con 45% de lactosa (grupo diarrea) y a la otra mitad una dieta sin lactosa (grupo control). El experimento duró 21 días con 3 recolecciones de heces de 48 h (días 2-4, 9-11 y 17-19). Los resultados mostraron que durante la primera recolección hubo diarreas similares tanto en los grupos de ratas intactas como cecotomizadas, pero en las próximas, sólo las cecotomizadas tenían una diarrea cuya severidad aumentó (3,5 veces) con el tiempo. Adicionalmente, en los dos tipos de ratas, las pérdidas fecales de proteína y grasa fueron proporcionales a la masa fecal húmeda excretada, pero fueron 2 veces más altas en las cecotomizadas. Se concluye que la cecotomía previene la adaptación, aumenta la severidad y prolonga la diarrea inducida con lactosa e incrementa notablemente las pérdidas fecales de los macronutrientes y reduce la eficiencia del alimento(AU)

Lactose induced diarrhea in rats has been used for studying the appropriated feeding during diarrhea. However, rats adapt to lactose and this diarrhea last approximately one week. In order to establish if cecum removal could prolong it, here lactose induced diarrhea was produced in intact and cecectomized rats. In the experiment there were 16 intact and 16 cecectomized rats. Halve of the rats in each group were fed a diet with 45% lactose (Diarrhea group) and the other halve a lactose free diet (Control group). The experiment lasted 21 days and included three 48h fecal collections (days 2-4, 9-11 and 17-19). The results showed that during the first collection both groups had diarrheas of similar severity but thereafter, only the cecectomized had a diarrhea whose severity increased (3.5 times) with time. Additionally, in both groups of rats, protein and fat fecal losses were proportional to fecal output but they were higher (2 times) in the cecectomized group. In conclusion, cecectomy prevents lactose adaptation and results in a diarrhea that last longer and it is more severe (3.5 times). Also in these rats fecal losses of macronutrients are higher whereas feed efficiency is lower(AU)

[Probable association between preeclampsia/eclampsia and paternal age: a pilot study]. / Posible asociación entre preeclampsia-eclampsia y la edad paterna: estudio piloto.

BACKGROUND: The preeclampsia is a multisystemic syndrome that occupied the first cause of maternal and fetal mortality around the world. Epidemiologic studies shown both mother and father contribute at the same risk for preeclampsia. OBJECTIVE: To determinate if there is an association between preeclampsia and paternal age. MATERIAL AND METHOD: Preeclampsia-eclampsia patients and couples were analyzed in agree to "National High Blood Pressure Education Program Working Group" classification, and a control group constituted by normal pregnant women and couples was included. RESULTS: There were 27 cases with mild preeclampsia and her couples, 13 cases with severe preeclampsia and her couples and 40 controls conformed by normal pregnant women and her couples. The statistical analysis of variance of the ages shown that men from preeclamptic group had a greater variance in contrast with man of control group (p < 0.001; valor of F = 5.084). CONCLUSIONS: Although is not clear how paternal age interview in preeclampsia risk, the interaction between paternal-maternal imprinting and spermatic senescence, followed by shortened telomeres of chromosome, could be produce the inactivity of a whole network of signals implicated in disease aetiology.

[Sclerosing fibrous hemangiomas in vulva]. / Hemangioma fibroso esclerosante en la vulva.

We present a case report of a patient that went to consultation for tumoración presence at level vulvar of a year of evolution, with size of 8 x 6 cm, accompanied by pain with the deambulación and manipulation, the out taking of tumoración biopsy, later on resection by means of vulvectomia simple left and the result anatomohistopatológico was corroborated that reported hemangioma fibrous esclerosante. The treatment and the evolution was favorable. You analyzes the case and their such complications as: infection of surgical wound and dehiscencia. Bibliography related with the topic was revised.