Effect of thyme essential oil on rumen parameters, nutrient digestibility, and nitrogen balance in wethers fed high concentrate diets / Efeito do óleo essencial de tomilho sobre os parâmetros ruminais, a digestibilidade dos nutrientes e o balanço de nitrogênio em borregos alimentados com elevado teor de concentrado

This trial aimed to evaluate the effects of thyme essential oils (EO) on rumen parameters, nutrient digestibility and nitrogen balance in wethers fed with high-concentrate diet. Twenty rumen-cannulated wethers were blocked according to body weight (BW= 64.0±2.1kg), and received one of the following treatments: 25mg of monensin/kg of dry matter (DM; MON) or doses of thyme EO (1.25, 2.50 or 3.75g/kg of DM). The diet was composed of 90% concentrate. Thyme EO was composed mainly by thymol (46.6% of DM) and p-cymene (38.9% of DM). The nutrient intake and apparent digestibility were similar among treatments. The inclusion of 3.75g of thyme EO tended (P= 0.07) to increase butyrate compared to MON and 1.25OE and wethers fed with 1.25g of thyme EO tended (P= 0.07) to decrease ruminal pH on the 14th day compared to MON. The treatments did not affect acetate:propionate ratio, total short chain fatty acids (SCFA) and nitrogen retention. Results from this study suggest that adding thyme EO to high-concentrate diets may be used as an alternative to monensin as feed additive in feedlot lambs.(AU)

O objetivo do estudo foi avaliar os efeitos do óleo essencial (OE) de tomilho nos parâmetros ruminais, na digestibilidade e no balanço de nitrogênio em borregos alimentados com elevado teor de concentrado. Vinte borregos providos de cânulas ruminais foram blocados de acordo com o peso corporal (PC=64,0±2,1kg) e receberam um dos tratamentos: 25mg de monensina/kg de matéria seca (MS; MON) ou doses de OE de tomilho (1,25; 2,50 ou 3,75g/kg de MS). A dieta foi composta por 90% de concentrado. A composição do OE de tomilho foi principalmente timol (46,6% da MS) e p-cimeno (38,9% da MS). A ingestão e a digestibilidade dos nutrientes foram semelhantes entre os tratamentos. A inclusão de 3,75g de OE de tomilho tendeu (P=0,07) a aumentar o butirato em relação aos tratamentos MON e 1,25OE. Os borregos alimentados com 1,25g de OE tenderam (P=0,07) a apresentar menor pH ruminal no 14º dia comparado a MON. No entanto, os tratamentos não afetaram a relação acetato:propionato, concentração total de ácidos graxos de cadeia curta e retenção de nitrogênio. Os resultados sugerem que a adição de OE de tomilho em dietas com elevado teor de concentrado pode ser uma alternativa à monensina como aditivo alimentar para cordeiros em confinamento.(AU)

Molecular bloodmeal analyses reveal that Trypanosoma cruzi-infected, native triatomine bugs often feed on humans in houses in central Brazil.

The identification of bloodmeal sources in triatomine bugs (Hemiptera: Reduviidae) is important in understanding vector-host associations and in measuring the risk for Chagas' disease transmission. The bloodmeal sources of triatomines infected with Trypanosoma cruzi (Trypanosomatida: Trypanosomatidae) caught in houses in central Brazil (Goiás State and the Federal District) were investigated during 2012-2014. Mitochondrial cytochrome b amplicons were used to identify bloodmeals through high-resolution melting and DNA sequencing. Most bugs were found to have fed on either humans (45.7%) or chickens (43.1%). Human blood was detected in Triatoma sordida (n = 22/50 bugs), Triatoma pseudomaculata (n = 7/11 bugs), Panstrongylus megistus (n = 10/24 bugs), Panstrongylus geniculatus (n = 1/3 bugs) and Rhodnius neglectus (n = 18/28 bugs) (all: Hemiptera: Reduviidae). Sequencing identified Necromys (Rodentia: Cricetidae) mouse blood in P. geniculatus and Tropidurus (Squamata: Tropiduridae) lizard blood in T. pseudomaculata and T. sordida. These findings reveal new vector-host associations. The present results suggest frequent contact between humans and T. cruzi-infected triatomines in central Brazil and indicate that Chagas' disease transmission by native vectors is an ongoing threat.

Extracellular DNA traps in bronchoalveolar fluid from a murine eosinophilic pulmonary response.

Asthma is associated with a loss of the structural integrity of airway epithelium and dysfunction of the physical barrier, which protects airways from external harmful factors. Granulocyte activation causes the formation of extracellular traps, releasing web-like structures of DNA and proteins, being important to kill pathogens extracellularly. We investigated whether eosinophils infiltrating airways in an experimental model of asthma would induce eosinophil extracellular traps (EETs) in bronchoalveolar lavage fluid and lung tissue. We showed that an ovalbumin (OVA) asthma protocol presented a significant increase in eosinophil counts with increased extracellular DNA in bronchoalveolar lavage fluid as well as in lung tissue, confirming the presence of DNA traps colocalized with eosinophil peroxidase. EETs formation was reversed by DNase treatment. With these approaches, we demonstrated for the first time that OVA-challenged mice release extracellular DNA traps, which could aggravate pulmonary dysfunction.

Phythochemical screening and anticonvulsant activity of Cymbopogon winterianus Jowitt (Poaceae) leaf essential oil in rodents.

Cymbopogon winterianus (Poaceae) is used for its analgesic, anxiolytic and anticonvulsant properties in Brazilian folk medicine. This report aimed to perform phythochemical screening and to investigate the possible anticonvulsant effects of the essential oil (EO) from fresh leaves of C. winterianus in different models of epilepsy. The phytochemical analysis of EO showed presence of geraniol (40.06%), citronellal (27.44%) and citronellol (10.45%) as the main compounds. A behavioral screening demonstrated that EO (100, 200 and 400mg/kg; ip) caused depressant activity on CNS. When administered concurrently, EO (200 and 400mg/kg, ip) significantly reduced the number of animals that exhibited PTZ- and PIC-induced seizures in 50% of the experimental animals (p<0.05). Additionally, EO (100, 200 and 400mg/kg, ip) significantly increased (p<0.05) the latencies of clonic seizures induced by STR. Our results demonstrated a possible activity anticonvulsant of the EO.

Congruence of terms between lists of problems and the ICNP--Alpha Version. International Classification for Nursing Practice.

The International Classification for Nursing Practice (ICNP)--Alpha Version, is the first rendition of the International Council of Nurses (ICN) efforts to develop a standardized international nursing language system. This system has three principal components: nursing phenomena; nursing actions; and nursing outcomes. This article describes a study of agreements between terms used by nurses of the intensive care unit at the Hospital of the University of Sao Paulo, to designate patients' nursing problems and the terms proposed by the ICNP--Alpha Version. The records of 59 interned patients, admitted to the intensive therapy unit, were analysed for nursing problems. Of 336 problem categories listed by the nurses, 153 (45.5%) corresponded to the ICNP terms. The 183 categories of problems that did not correspond to the ICNP terms were categorized by the authors as the following: medical diagnoses (37.2%); signs (28.4%); interventions (26.2%); and historical data (8.2%). These results show that there may be no agreement between the concept of nursing phenomena for the ICNP and of nursing problems for the nurses whose records were analysed. Considering that medical diagnoses, intervention and historical data could not be accepted as nursing phenomena for the ICNP, the agreement is potentially higher than 45.5%.

[The quality of life of diabetics]. / Qualidade de vida da pessoa diabética.

The purposes of this study were to identify the meaning of the quality of life for the people who suffer from Diabetes Mellitus, to recognize the aspects which affect most their lives due to this disease and the degree of the satisfaction in their lives as well. Participated in this research forty-six (46) diabetic patients, adults of both sexes, who were in a polyclinic for treatment. The results showed that the meaning of the quality of life had priority related to the physical well-being (54.5%), to the social and economical stability (26.0%), and to the spiritual and emotional well-being (16.9%). The most affected aspects due to this disease were: studying and home activities (38.5%) physical ability (25.6%) and family relationship (10.3%). Concerning about the degree of satisfaction with their lives, the majority of them (66.6%) considered themselves satisfied or very satisfied. It is worth while to point out the importance of considering the multimensionality of the concept of quality of life while attending the diabetic person.

[Seroepidemiology for the hepatitis B virus (HBV) in pregnant women/parturients and its transmission to newborns in Goiânia, GO]. / Soroepidemiologia para o vírus da hepatite B (VHB) em gestantes/parturientes e sua transmissão para recém-nascidos em Goiânia-GO.

In order to detect hepatitis B virus (HBV), 1459 serum samples from pregnant/parturient women were collected at two public hospitals in Goiânia, GO. These samples were tested by enzyme linked immunosorbent assay for HBsAg and anti-HBs. 109 (7.5%) serum samples were positive. Eight (0.5%) sera were positive for HBsAg and 101 (7.0%) for anti-HBs. Viral positivity for both HBsAg and anti-HBs were observed in women which age ranged from 15 to 30 years. Four newborns from HBsAg positive mothers were submitted to the treatment with HBV vaccine (Engerix B) and with hyperimmune gammaglobulin (HBIG, Abbott Laboratories, Brazil). Cord blood from one of the newborns was positive for HBsAg. A positive association was found between hepatitis B and sexually transmitted infections and blood transfusion. These results emphasize the need for prenatal screening for HBV in pregnant women and treatment of the newborns from AgHBs-positive mothers.