Health inequities and marginalized groups: An overview for college student travelers and travel health professionals.

One of the main goals of college- and university-sponsored travel is to broaden the global perspectives of student travelers, thereby enhancing their ability to effectively communicate and work with people from different cultural backgrounds. Pre-travel consultations are important for all students traveling internationally, and especially for those facing current or past health inequities and marginalization. To offer high quality, inclusive services, college travel health clinicians must understand both the student traveler population and cultural norms at the travel destinations, especially those related to health and safety.

Travel health nursing: expanding horizons for occupational health nurses.

Pre-travel care, with its focus on disease prevention and health promotion, is the cornerstone of travel health nursing practice. Pre-travel nursing services include risk assessment, immunizations, health counseling, and referrals. Individual travel health and safety risks vary and depend upon a number of different factors.

Sodium fluoride induces changes on proteoglycans synthesized by avian osteoblasts in culture.

The results reported here show that sodium fluoride (NaF) at low concentration (up to 10 microM) increased four times the proliferation rate of avian osteoblasts in culture. Also NaF increases, in a concentration dependent manner, 10 times the alkaline phosphatase activity. However, NaF decreased the incorporation of 35S-sulfate into proteoglycans (PGs) synthesized by osteoblasts (60-65%).

Effects of zinc on cell proliferation and proteoglycan characteristics of epiphyseal chondrocytes.

Zinc has been postulated as an important nutritional factor involved in growth promotion; however, the cellular mechanisms involved in the effects of zinc on linear growth remain to be elucidated. This study was conducted to evaluate the effects of zinc on the proliferation rate of epiphyseal growth plate chondrocytes and on the structural characteristics of the proteoglycans synthesized by these cells. For these purposes, hypertrophic and proliferating chondrocytes were isolated from the tibiae of 1- and 5-week-old chickens, respectively.