ABSTRACT
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.
Subject(s)
Extreme Environments , Actinobacteria/metabolism , Cyanobacteria/metabolism , Desert Climate , Drug Discovery , Ecosystem , Fungi/metabolism , Geologic Sediments/microbiology , Permafrost , Soil MicrobiologyABSTRACT
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.
Subject(s)
Attitude to Health/ethnology , Menopause , Women/psychology , Age Factors , Cross-Sectional Studies , Educational Status , Egypt , Employment , Estrogen Replacement Therapy , Factor Analysis, Statistical , Fatigue/etiology , Female , Focus Groups , Headache/etiology , Health Knowledge, Attitudes, Practice , Humans , Income , Marital Status , Menopause/ethnology , Menopause/physiology , Middle Aged , Qualitative Research , Regression Analysis , Self Care/methods , Self Care/psychology , Surveys and Questionnaires , Urination Disorders/etiology , Women/educationABSTRACT
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
Subject(s)
Signs and Symptoms , Health Knowledge, Attitudes, Practice , Perception , Socioeconomic Factors , Surveys and Questionnaires , MenopauseABSTRACT
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.
Subject(s)
Child Day Care Centers , Child Health Services/organization & administration , Child Nutrition Disorders/prevention & control , Food Services/organization & administration , Malnutrition/prevention & control , Anthropometry , Child Nutrition Disorders/diagnosis , Child Nutrition Disorders/epidemiology , Child Nutrition Sciences/education , Child Welfare/statistics & numerical data , Child, Preschool , Educational Status , Energy Intake , Feasibility Studies , Female , Humans , Linear Models , Male , Malnutrition/diagnosis , Malnutrition/epidemiology , Mothers/education , Nutrition Assessment , Nutrition Policy , Nutritional Status , Program Evaluation , Prospective Studies , Surveys and Questionnaires , Urban Health/statistics & numerical dataABSTRACT
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
