Differences in health symptoms among residents living near illegal dump sites in Los Laureles Canyon, Tijuana, Mexico: a cross sectional survey.

Living near landfills is a known health hazard prompting recognition of environmental injustice. The study aim was to compare self-reported symptoms of ill health among residents of four neighborhoods, living in haphazardly constructed settlements surrounded by illegal dumpsites in Tijuana, Mexico. One adult from each of 388 households located in Los Laureles Canyon were interviewed about demographics, health status, and symptoms. Distance from each residence to both the nearest dumpsite and the canyon bottom was assessed. The neighborhoods were selected from locations within the canyon, and varied with respect to proximity to dump sites. Residents of San Bernardo reported significantly higher frequencies of ill-health symptoms than the other neighborhoods, including extreme fatigue (OR 3.01 (95% CI 1.6-5.5)), skin problems/irritations (OR 2.73 (95% CI 1.3-5.9)), stomach discomfort (OR 2.47 (1.3-4.8)), eye irritation/tears (OR 2.02 (1.2-3.6)), and confusion/difficulty concentrating (OR 2.39 (1.2-4.8)). Proximity to dumpsites did not explain these results, that varied only slightly when adjusted for distance to nearest dumpsite or distance to the canyon bottom. Because San Bernardo has no paved roads, we hypothesize that dust and the toxicants it carries is a possible explanation for this difference. Studies are needed to further document this association and sources of toxicants

Effect of Mineral Acids on Rooting Response of Aging Mung Bean (Phaseolus aureus Roxb. ) Cuttings via Indole Acetic Acid Level

The influence of sulfuric acid (H2SO4) as a strong mineral acid on rooting response of fresh and aging mung bean cuttings has been studied on the level of (IAA) . The data revealed significant increase in rooting response of aged cuttings      ( for 3 days in d/H2O ) with (0.001 and 0.01%) concentrations of H2SO4 solution and highly significant increase in rooting response of aged cuttings (for 3 days in H2SO4 solution) with (0.0001 , 0.001 and 0.01%) concentration , While highly concentration (0.1 and 0.5 %) revealed highly significant decrease in rooting response compared to control (d/H2O). Quantitative estimation of IAA by spectrophotometric method as indicators for oxidative processes that occur during aging phenomenon verified a highly significant increase of IAA content in hypocotyles of aged cuttings in optimal concentration of H2SO4 . Key words: Aging, IAA biosynthesis, Rooting response, Mineral acids, Macronutrients, Stem cuttings

Citric acid production from whey with sugars and additives by Aspergillus niger

Citric acid (CA) production by Aspergillus niger ATCC9642 from whey with different concentrations of sucrose, glucose, fructose, galactose riboflavin, tricalcium phosphate and methanol in surface culture process was studied. It was found that whey with 15% (w/v) sucrose with or without 1% methanol was the most favourable medium producing the highest amount (106.5 g/l) of citric acid. Lower CA was produced from whey with other concentrations of sugars and other additives used. Highest biomass of A. niger was produced with the addition of riboflavins. In general, extension of the fermentation (up to 20 days) resulted in an increase in CA and biomass, and decrease in both residual sucrose and pH values. Key words: Citric acid, Aspergillus niger, whey fermentation, surface culture. African Journal of Biotechnology Vol.2(10) 2003: 356-35

Population's perspectives toward biobanks in scientific research: a study from Jordan.

BackgroundBiobanks (biorepositories) were established to compile collected bio-specimens for future research and usage. The collection/storage of bio-specimens triggers several social, legal, and ethical implications where public attitudes can represent the core measurement/parameter in defining the most acceptable practices and ethical approaches when dealing with biobanks.AimThe aim of this study was to explore and understand population's perspectives, expectations, and concerns toward biobanks in Jordan.MethodsA cross-sectional survey that included closed-ended questions was distributed among Jordanians. A total of 500 participants who are representative of the Jordanian population were included in this study.ResultsThere was overwhelming support (>85%) for the establishment of biobanks in Jordan, and most of the participants agreed on the importance of biobanks and samples' donation for promoting medical research. Enthusiasm in biobanking participation was associated with the sociodemographic characteristics of participants including age, educational level, and previous knowledge of biobanks. Moreover, considering sample donation as a religiously good deed appeared to have the strongest positive correlation with willingness to donate bio-specimens for future research. Also, participants' trust in medical and research services, especially the protection of their privacy and confidentiality, was the most critical concern when they decided to participate in biobanks.ConclusionPopulation's attitude toward biobanks in Jordan was positive and promising, and can encourage the future establishment of different biobanks. It is also necessary to take into consideration certain sociodemographic characteristics when discussing specific information with potential biobanks' donors

Passive smoking, as measured by hair nicotine, and severity of acute lower respiratory illnesses among children

The aim of this study was to describe the association between passive smoking and the severity of acute lower respiratory illnesses (ALRI) among 351 children aged 3–27 months admitted to hospital. A total of 297 children provided hair samples, which were analysed for hair nicotine levels as an indicator of passive smoking. A severity of illness grading system was developed by using clinical and management criteria used by the medical staff at hospital. The OR for children with more severe illness being exposed to higher nicotine levels was 1.2, 95% CI: 0.57–2.58 when using dichotomised respiratory severity levels and upper versus lower nicotine quartile levels. In an ordinal logistic regression model, the OR of more severe illness being associated with higher nicotine levels was 1.07 (95% CI: 0.92–1.25). When analysis was limited to the more severe cases, the OR of the least severe category compared to the most severe category, in relation to nicotine levels in hair, was 1.79 (95% CI: 0.5–6.30). The ordinal logistic regression of this group of severely-ill children (OR 1.1 (95% CI: 0.94–1.29) was not substantially different from the overall study subjects

Perceptions of hookah smoking harmfulness: predictors and characteristics among current hookah users

This is an Open Access article distributed under the terms of the Creative Commons Attribution Licens

Knowledge and Attitudes of Young People toward Mental Illness: A Cross Sectional Study

The aim of the study was to investigate young Jordanians’ knowledge and attitudes toward people who have a mental illness. A cross sectional design was utilized. A convenient sample of 858 participants aged between 15–24 years old completed a survey. Participants under 19 years were accessed through their schools and those 19 years and above were accessed through universities. Results showed that although the majority of university and school students’ responses were generally consistent, they disagreed on 11 items on the survey; for example, 186 (39.3%) of university students agreed that mental illness has a biological origin compared with only 119 (30%) of school students. The majority of young people 737 (85.9%) were willing to learn and 792 (92.3%) felt that they have to help people with mental illness, which make them willing to learn. In conclusion, the findings provide insights for decision makers and researchers in Jordan about young peoples’ knowledge and attitudes toward mental illness. Increasing young adults’ literacy through introducing educational programs such as mental health first aid courses will enrich their knowledge; help change attitudes and reduce stigma toward people living with mental illness

Assessment of the Efficacy of Thrombolysis (Metalase) in Management of Acute Myocardial Infarction in Relation to Time When it is Given After Onset of MI

Background : Thrombolysis remains the treatment of choice in ST-segment elevation myocardial infarction (STEMI). Efficacy of reperfusion therapy in (AMI) is strictly time-dependent. Most benefit is achieved with initiation of therapy within the first 60–90 min after onset of symptoms. Objectives : The aim of this study is to show the efficacy of the thrombolysis in acute myocardial infarction ( AMI ) in relation to the time (hours ) when it is given after the onset of myocardial infarction  . Methods :  56 patients with acute STEMI  admitted to coronary care unite (CCU) of baquba teaching hospital were treated with thrombolytic therapy ( metalase) in the period from 1st  / October / 2009  to  30th / may / 2010 .We observe the beneficial changes that occur after metalase use in relation to the time at which it is given after onset of myocardial infarction (i.e. onset of characteristic chest pain). Results :  From 56 patients , (4) patients ( 7.1%) came with in 1st hour and they  develop complete recovery , their ECG return to normal after thrombolysis, ( 23) patients (41% ) came with in 1-6 h. , they develop partial recovery and they had decrease in ST-segment elevation after thrpombolysis, (29) patients (51.7%) came after 6h. were having no any benefit from thrombolysis and  had no change in ECG after thrombolysis . Conclusions : Thrombolysis  if given early in the 1st few hours (1-6 h.) is useful way to treat cases of STEMI  , as it decrease infarct size and decrease  morbidity and mortality