The aim of this review is to argue that the oral manifestations asociated to hormonal variations during the reproductive cycle, in humans, indicdte that the periodontum is a target tissue for ...hormonal influence. The sex steroid hormones: Estradiol, Progesterone and Androgens have important functions on the expression of secondary sexual characteristics, defined the sexual development of the individual and the reproductive processes. The increase in circulating hormones could affect the metabolic functioning of other organs and tissues. Fibroblasts are the math cell in cytoarchitecture of the peridontum, but the direct response of these cells to hormonal stimuli has not been studied deeply. The objective of this essay is to review the literature on this subject and we conclude that the hormonal status of pregnancysensitizes the periodontal tissues to bacterial insult. It is unknown how the hormonal environment of pregnancy may affect the response of periodontal fibroblasts; this would partially explain the incidence of periodontitis during gestation.
Berdugo Polak Marianne. Observer les baleines et autres Cétacés en France et en Europe. De Mark Carwardine Delachaux et Niestlé (2017). In: Bulletin de l'Académie Vétérinaire de France tome 171 n°1, ...2018. pp. 60-61.
The bronchodilator effects of inhaled fenoterol (FI) and salbutamol aerosol (S) in 15 patients (8 male and 7 female with a median age of 44 +/- 13 years), diagnosed as suffering from asthma, were ...studied using spirometry (determining FEV1, FEF 25-75% and FVC) and flow volume curves (PEF, MEF 75% and MEF 25%). The mean theroric rate of FEV1, PEF, MEF 75% was defined as the theoric rate of the obstruction of central airways (PCA%) and the mean of FVC, FEF 25-75% and MEF 25% rates defined as the rate of the theoric obstruction of the peripheral airways (PPA%). Basal and 5, 15, 30, 60, 120, 240, 360, 480 minute determinations were done, after the administration of 200 mcg of S in the conventional way on two different days. The statistic study carried out using the "u" test of Mann-Whytney. No statistically significant differences in intensity, onset nor duration of the effect between both drugs were found. We concluded that FI is a drug of great utility in treatment of asthmatic patients and one which allowed, because of the easy inhaling technique, the use of beta 2 adrenergic drugs in a mayor number of patients who would otherwise have to resort to an alternative form of administration.
Una de las causas de la baja eficiencia productiva bovina lo constituye la perdida de animales aptos para reproducirse que en muchos casos son enviados al rastro gestantes, practica generalizada ya ...que en varios estudios realizados se ha encontrado que mas del 50 % de las vacas enviadas al sacrificio se encuentran gestantes. Los motivos del envio de estos animales no se conoce de una manera fidedigna por lo cual se planteo la necesidad de conocer regionalmente el porcentaje de vacas gestantes enviadas al rastro y los posibles motivos de su envio. Se llevaron registros durante un ano en el rastro de Campeche, Camp. (Dic. 87-Nov. 88) con visitas quincenales determinando parametros como: edad de las vacas, menor de 4 anos, de 4.01 6, de 6.01 a 8 y mayor de 8 anos; estado de gestacion, primer tercio con un producto ( de 15 cms, segundo tercio de 15.01 a 48 cms y tercer tercio de ) 48 cms. Tambien se determinaron los 2 periodos estacionales, secas de enero a junio y lluvias de julio a dic. Se encontro un total de 966 animales sacrificados de los cuales 553 fueron vacas, estando el 48 % de estos gestando. Se tuvieron en el primer tercio de gestacion el 34 %, en el segundo tercio se tuvo 32 % y en el tercer tercio de gestacion un 34 %. Se encontro asociacio entre epoca y periodo de gestacion (P menor de 0.01) siendo el mayor numero de animales sacrificados en las secas y principalmente en el primer tercio de gestacion lo que denota que en muchos de los casos no se sabe si el animal esta gestante o no siendo la seca, la epoca critica por la falta de forrajes, y la de mayor envio de animales al rastro.
