The effect of being housed with adult female flock-mates on the age at puberty of autumn-born ewe-lambs.

Twenty-five ewe-lambs born in November were used to measure the effect of the presence of cyclic or non-cyclic adult ewes on the age at first fertile estrus. Lambs were weaned at 45 days of age and kept in a single flock until 3 Mar (4 months old), when they were assigned to one of the following three groups: Group CE (n = 8), housed with six cyclic adult ewes; Group NCE (n = 8), housed with three non-cyclic ovariectomized adult ewes, and Group ISO (n = 9), housed isolated from adult ewes. On 2nd May (6 months old), two rams were introduced into each group, until 31st Oct (12 months old), when rams were removed.

Assessing heavy metal pollution by biomonitoring honeybee nectar in Córdoba (Spain).

Nectar of honeybee colonies has been used in order to identify heavy metals and establish the benefit of this type of studies as a tool for environmental management. For these goals, samples of nectar were obtained from Apis mellifera hives placed in the city of Córdoba (Spain) and its surroundings. Five stations (each with two hives) were selected and samples were collected from May to July of 2007, 2009 and 2010.

Hepatotoxicity induced by acute and chronic paracetamol overdose in children: Where do we stand?

Background: There are few data on hepatotoxicity induced by acute or chronic paracetamol poisoning in the pediatric population. Paracetamol poisoning data can reveal the weaknesses of paracetamol poisoning management guidelines.

Methods: We retrospectively studied the patients of less than 18 years old with measurable paracetamol levels, who were brought to the emergency department (ED) of La Paz University Hospital, Madrid, Spain, for suspected paracetamol overdoses between 2005 and 2010.

Assessment of heavy metal pollution in Córdoba (Spain) by biomonitoring foraging honeybee.

Due to features that make them outstanding environmental bioindicator, colonies of Apis mellifera are being used to study environmental pollution. The primary objective of this research was to use honeybee colonies to identify heavy metals and determine their utility for environmental management. Five stations each with two A.

[Diagnosis and treatment of gastrointestinal bleeding in Bean syndrome].

Blue Rubber-Bleb Nevus Syndrome (BRBNS, Bean Syndrome) is a rare disorder characterized by the presence of cutaneous and visceral vascular malformations. Although it may affect several organs, the gastrointestinal tract is one of the most frequently involved sites. It can cause gastrointestinal bleeding and chronic anemia.

Kala-azar epidemiology and control, southern Sudan.

Southern Sudan is one of the areas in eastern Africa most affected by visceral leishmaniasis (kala-azar), but lack of security and funds has hampered control. Since 2005, the return of stability has opened up new opportunities to expand existing interventions and introduce new ones.

[Congenital chloride diarrhea].

Congenital chloride diarrhea (CCD) is a rare hereditary disease, with a prenatal onset, secondary to a deficit in the intestinal chloride transport. In the present study, we describe the clinical characteristics of three patients with congenital watery diarrhea, two of them females, aged between 9 and 14 months at the first visit. All patients presented perinatal antecedents of polyhydramnios and prematurity, watery stools since birth and growth failure.

Presentation of Degos syndrome as acute small-bowel perforation.

Malignant atrophic papulosis is an uncommon vasculopathy affecting multiple systems and frequently associated with a poor prognosis. We describe a 56-year-old patient with this rare disorder whose death was the result of intestinal involvement. Clinical diagnostic features of malignant atrophic papulosis as well as the main therapeutic approaches suggested in the literature are presented herein.

Control of human African trypanosomiasis in the Quiçama focus, Angola.

Objective: To update the epidemiological status of human African trypanosomiasis (HAT), also known as sleeping sickness, in the Quiçama focus, province of Bengo, Angola, and to establish a HAT control programme.

Methods: In 1997, 8796 people (the population of 31 villages) were serologically screened for Trypanosoma brucei gambiense, the causative agent of HAT. In 1998 and 1999, surveys were carried out in villages where HAT cases had been identified in 1997.