Extreme environments: microbiology leading to specialized metabolites.

The prevalence of multidrug-resistant microbial pathogens due to the continued misuse and overuse of antibiotics in agriculture and medicine is raising the prospect of a return to the preantibiotic days of medicine at the time of diminishing numbers of drug leads. The good news is that an increased understanding of the nature and extent of microbial diversity in natural habitats coupled with the application of new technologies in microbiology and chemistry is opening up new strategies in the search for new specialized products with therapeutic properties. This review explores the premise that harsh environmental conditions in extreme biomes, notably in deserts, permafrost soils and deep-sea sediments select for micro-organisms, especially actinobacteria, cyanobacteria and fungi, with the potential to synthesize new druggable molecules. There is evidence over the past decade that micro-organisms adapted to life in extreme habitats are a rich source of new specialized metabolites. Extreme habitats by their very nature tend to be fragile hence there is a need to conserve those known to be hot-spots of novel gifted micro-organisms needed to drive drug discovery campaigns and innovative biotechnology. This review also provides an overview of microbial-derived molecules and their biological activities focusing on the period from 2010 until 2018, over this time 186 novel structures were isolated from 129 representatives of microbial taxa recovered from extreme habitats.

Women's perception and experience of menopause: a community-based study in Alexandria, Egypt.

To determine symptoms, perceptions and practices after natural menopause by women aged 50-59 years, we conducted a cross-sectional study of 450 women from Alexandria. The most frequently recalled symptoms were tiredness (96.0%), headache (95.1%), hot flushes (90.7%), skin wrinkles (90.7%) and decreased sexual desire (89.1%). About 91% of women had never heard about hormone replacement therapy; 42.7% would expose their body to the sun; 12.4% were moderately active the year before menopause. Multiple regression analysis indicated that women's knowledge about menopause was related to marital status, education and employment status; practices were related to pattern of menopause, age of menopause and income.

Women's perception and experience of menopause: a community-based study in Alexandria, Egypt

To determine symptoms, perceptions and practices after natural menopause by women aged 50-59 years, we conducted a cross-sectional study of 450 women from Alexandria. The most frequently recalled symptoms were tiredness [96.0%], headache [95.1%], hot flushes [90.7%], skin wrinkles [90.7%] and decreased sexual desire [89.1%]. About 91% of women had never heard about hormone replacement therapy; 42.7% would expose their body to the sun; 12.4% were moderately active the year before menopause. Multiple regression analysis indicated that women's knowledge about menopause was related to marital status, education and employment status; practices were related to pattern of menopause, age of menopause and income

An intervention programme for improving the nutritional status of children aged 2-5 years in Alexandria.

We assessed the effect of a selected intervention on the nutritional status of 2-5-year-old children in day care centres. Using a longitudinal prospective pretest/post-test intervention design, 974 children from 3 day care centres in Alexandria were followed for 1 year. Anthropometric measurements and 3-day 24-hour recall data were gathered at base line and dietary intake was calculated and compared with recommended daily allowances. An intervention programme was implemented through the establishment of kitchens in the 3 centres, provision of 2 meals/day, nutrition education for parents and training of supervisors. Baseline data revealed deficient intake of most nutrients especially calcium, calories, vitamin C and iron. Post-intervention test revealed improvement in mothers' nutrition knowledge and the percentage of anaemic children decreased from 47.3% to 14.2%. A decrease in the percentage of underweight, stunted and wasted was also observed. The cost of the programme per child per year was US$ 20.5.

An intervention programme for improving the nutritional status of children aged 2-5 years in Alexandria

We assessed the effect of a selected intervention on the nutritional status of 2-5-year-old children in day care centres. Using a longitudinal prospective pretest/post-test intervention design, 974 children from 3 day care centres in Alexandria were followed for 1 year. Anthropometric measurements and 3-day 24-hour recall data were gathered at base line and dietary intake was calculated and compared with recommended daily allowances. An intervention programme was implemented through the establishment of kitchens in the 3 centres, provision of 2 meals/day, nutrition education for parents and training of supervisors. Baseline data revealed deficient intake of most nutrients especially calcium, calories, vitamin C and iron. Post-intervention test revealed improvement in mothers' nutrition knowledge and the percentage of anaemic children decreased from 47.3% to 14.2%. A decrease in the percentage of underweight, stunted and wasted was also observed. The cost of the programme per child per year was US$ 20.5