Aryl hydrocarbon hydroxylase in mouse skin epidermis was inducible by topical applications of 1,2,5,6-dibenzanthracene (DBA), 7,12-dimethylbenz[a] anthracene (DMBA), and 5,6benzoflavone. 7,8-Benzoflavone given topically inhibited the enzyme activity; phénobarbitalgiven topically had little or no effect on this enzyme activity. 7,8-Benzoflavone given at the same time as DMBA inhibited the forma...

Introduction: One of the most common reasons of infertility is un-ovulatory period. Hormone therapy is the most common treatments of this type of infertility. Gonadotropins may exert toxic effects on the molecular organization of uterine surface, such as glycoconjugates. Glycoconjugates are the most important components of the uterine and trophoblast surface playing an important role in embryo ...

Female mice of nine inbred strains (A, AKR, BALB/c, C3H, C57BL/6, C57BL/10, CBA, DBA/1 and DBA/2) and H-2 congenic B10.D2, at 9-10 weeks of age, were infected with larval Echinococcus multilocularis by trans-portal injection of hydatid homogenate. Parasitized livers were histologically examined 9 or 13 weeks after infection. Hydatid development was quite different among mouse strains. Multivesi...

OBJECTIVES/HYPOTHOSIS To assess noise levels of toys from the Sight & Hearing Association (SHA) 2010 Noisy Toys List and evaluate the change in noise of these toys after covering the speakers with tape or glue. STUDY DESIGN One Group Pretest-Posttest Design. METHODS SHA 2010 Toys List (n = 18) toys were tested at distances of 0 and 25 cm from sound source in a soundproof booth using a digit...

A study of the effect of noise stress on some of the physiological parameters was carried out on healthy male workers of thermal power station (exposed to sound level 90-113 dBA) and compared with age and sex matched healthy controls (exposed to sound level 48-66 dBA). The parameters recorded were heart rate (HR), systolic blood pressure (SBP), diastolic blood pressure (DBP), galvanic skin resi...

BACKGROUND Objective measures of loneliness and poor social contacts are associated with negative health outcomes. However, the influence of subjective loneliness among elderly persons is poorly documented. We hypothesized that loneliness among persons aged 70-90 years is associated with subsequent decline in health, function, and longevity. METHODS Mortality data for subjects aged 70-90 year...

BACKGROUND Noise is the most common hazardous agent at workplaces. Noise induced hearing loss (NIHL) has been known since the industrial revolution. Although NIHL is permanent, irreversible and frequent, it is preventable. The economic costs of NIHL have been estimated to be about billions of dollars. Besides, cigarette smoking is a common habit worldwide, and according to some recent studies s...

During depopulation of a breeding unit within Swine Graphics Enterprises, extensive data were collected and used to examine relationships among ovulation rate, the pattern of prenatal loss, and placental and fetal development. Groups of Large White x Landrace females (n=447) were slaughtered between day 20-30, 50-55 or 85-90 of gestation, with approximately equal numbers of animals representing...