The effect of phosphatidylserine administration on memory and symptoms of attention‐deficit hyperactivity disorder: a randomised,double‐blind,placebo‐controlled clinical trial

Background

Attention‐deficit hyperactivity disorder (ADHD) is the most commonly diagnosed behavioural disorder of childhood, affecting 3–5% of school‐age children. The present study investigated whether the supplementation of soy‐derived phosphatidylserine (PS), a naturally occurring phospholipid, improves ADHD symptoms in children.

Methods

Thirty six children, aged 4–14 years, who had not previously received any drug treatment related to ADHD, received placebo (n = 17) or 200 mg day^–1 PS (n = 19) for 2 months in a randomised, double‐blind manner. Main outcome measures included: (i) ADHD symptoms based on DSM‐IV‐TR; (ii) short‐term auditory memory and working memory using the Digit Span Test of the Wechsler Intelligence Scale for Children; and (iii) mental performance to visual stimuli (GO/NO GO task).

Results

PS supplementation resulted in significant improvements in: (i) ADHD (P < 0.01), AD (P < 0.01) and HD (P < 0.01); (ii) short‐term auditory memory (P < 0.05); and (iii) inattention (differentiation and reverse differentiation, P < 0.05) and inattention and impulsivity (P < 0.05). No significant differences were observed in other measurements and in the placebo group. PS was well‐tolerated and showed no adverse effects.

Conclusions

PS significantly improved ADHD symptoms and short‐term auditory memory in children. PS supplementation might be a safe and natural nutritional strategy for improving mental performance in young children suffering from ADHD.     

Protracted outbreak of <Emphasis Type="Italic">S</Emphasis>. Enteritidis PT 21c in a large Hamburg nursing home

Background  

During August 2006, a protracted outbreak of Salmonella (S.) Enteritidis infections in a large Hamburg nursing home was investigated.     

The use of a <Emphasis Type="Italic">Cissus quadrangularis/Irvingia gabonensis</Emphasis> combination in the management of weight loss: a double-blind placebo-controlled study

Aim  

To evaluate the effects of two formulations, Cissus quadrangularis -only and a Cissus quadrangularis/Irvingia gabonensis combination, on weight loss in overweight and obese human subjects.     

No difference in self‐reported frequency of choking between infants introduced to solid foods using a baby‐led weaning or traditional spoon‐feeding approach

Background

Baby‐led weaning (BLW) where infants self‐feed family foods during the period that they are introduced to solid foods is growing in popularity. The method may promote healthier eating patterns, although concerns have been raised regarding its safety. The present study therefore explored choking frequency amongst babies who were being introduced to solid foods using a baby‐led or traditional spoon‐fed approach.

Methods

In total, 1151 mothers with an infant aged 4–12 months reported how they introduced solid foods to their infant (following a strict BLW, loose BLW or traditional weaning style) and frequency of spoon‐feeding and puree use (percentage of mealtimes). Mothers recalled if their infant had ever choked and, if so, how many times and on what type of food (smooth puree, lumpy puree, finger food and specific food examples).

Results

In total, 13.6% of infants (n = 155) had ever choked. No significant association was found between weaning style and ever choking, or the frequency of spoon or puree use and ever choking. For infants who had ever choked, infants following a traditional weaning approach experience significantly more choking episodes for finger foods (F_2,147 = 4.417, P = 0.014) and lumpy purees (F_2,131 = 6.46, P = 0.002) than infants following a strict or loose baby‐led approach.

Conclusions

Baby‐led weaning was not associated with increased risk of choking and the highest frequency of choking on finger foods occurred in those who were given finger foods the least often. However, the limitations of noncausal results, a self‐selecting sample and reliability of recall must be emphasised.     

Hypocholesterolemic effect of <Emphasis Type="Italic">Nostoc commune var. sphaeroides Kützing,</Emphasis> an edible blue-green alga

Background  

Intake of an edible blue-green alga Nostoc commune var. sphaeroides Kützing (N. Commune) has been shown to lower plasma total cholesterol concentration, but the mechanisms behind the hypocholesterolemic effect have not been elucidated.     

Knowledge of <Emphasis Type="Italic">Chlamydia trachomatis</Emphasis> among men and women approached to participate in community-based screening,Scotland, UK

Background  

Poor awareness and knowledge of Chlamydia trachomatis could be a barrier to uptake of screening. This study aimed to determine the level of awareness and knowledge of chlamydia among young people who were being approached in a variety of community settings and offered opportunistic screening.     

Prevalence of multidrug-resistant <Emphasis Type="Italic">Salmonella enteric</Emphasis> serotype typhi and paratyphi A of human cases from the Tiruchirappalli district,India, and their associated virulent markers

Aim  

The study sought to determine the multidrug resistance (MDR) of Salmonella enterica typhi and paratyphi A isolates in correlation with the presence of virulent markers detected by a PCR-based approach.     

Mercury exposure,malaria, and serum antinuclear/antinucleolar antibodies in amazon populations in Brazil: a cross-sectional study

Background  

Mercury is an immunotoxic metal that induces autoimmune disease in rodents. Highly susceptible mouse strains such as SJL/N, A.SW, B10.S (H-2^s) develop multiple autoimmune manifestations after exposure to inorganic mercury, including lymphoproliferation, elevated levels of autoantibodies, overproduction of IgG and IgE, and circulating immune complexes in kidney and vasculature. A few studies have examined relationships between mercury exposures and adverse immunological reactions in humans, but there is little evidence of mercury-associated autoimmunity in humans.     

Evaluating the <Emphasis Type="Italic">SOS</Emphasis>suicide prevention program: a replication and extension

Background  

Suicide is a leading cause of death for children and youth in the United States. Although school based programs have been the principal vehicle for youth suicide prevention efforts for over two decades, few have been systematically evaluated. This study examined the effectiveness of the Signs of Suicide (SOS) prevention program in reducing suicidal behavior.     

Reinterpreting a community outbreak of <Emphasis Type="Italic">Salmonella enterica</Emphasis>serotype Enteritidis in the light of molecular typing

Background  

In November 2005, a large outbreak due to Salmonella enterica serotype Enteritidis (S. Enteritidis) was observed within children who had eaten their meals at 53 school cafeterias in Florence and the surrounding area. A total of 154 isolates of S. Enteritidis were recovered from human cases between November 2005 and January 2006. All strains were assigned phage type 8 (PT8) and a common Xba I pulsotype.     

Cost-effectiveness of six strategies for <Emphasis Type="Italic">Helicobacter pylori</Emphasis>diagnosis and management in uninvestigated dyspepsia assuming a high resource intensity practice pattern

Background  

Initial assessment of dyspepsia often includes noninvasive testing for Helicobacter pylori infection. Commercially available tests vary widely in cost and accuracy. Although there is extensive literature on the cost-effectiveness of H. pylori treatment, there is little information comparing the cost-effectiveness of various currently used, noninvasive testing strategies.     

Completeness and timeliness of <Emphasis Type="Italic">Salmonella</Emphasis> notifications in Ireland in 2008: a cross sectional study

Background  

In Ireland, salmonellosis is the second most common cause of bacterial gastroenteritis. A new electronic system for reporting (Computerised Infectious Disease Reporting - CIDR) of Salmonella cases was established in 2004. It collates clinical (and/or laboratory) data on confirmed and probable Salmonella cases. The authors studied the completeness and the timeliness of Salmonella notifications in 2008.     

<Emphasis Type="Italic">Legionella</Emphasis> species colonization of water distribution systems,pools and air conditioning systems in cruise ships and ferries

Background  

Legionnaires' disease continues to be a public health concern in passenger ships. This study was scheduled in order to investigate Legionella spp. colonization of water distribution systems (WDS), recreational pools, and air-conditioning systems on board ferries and cruise ships in an attempt to identify risk factors for Legionella spp. colonization associated with ship water systems and water characteristics.     

Epidemiology of Shiga toxin producing <Emphasis Type="Italic">Escherichia coli</Emphasis> in Australia, 2000-2010

Background  

Shiga toxin-producing Escherichia coli (STEC) are an important cause of gastroenteritis in Australia and worldwide and can also result in serious sequelae such as haemolytic uraemic syndrome (HUS). In this paper we describe the epidemiology of STEC in Australia using the latest available data.     

Studies on antidyslipidemic effects of <Emphasis Type="Italic">Morinda citrifolia</Emphasis> (Noni) fruit,leaves and root extracts

Background  

The objective of present study was to provide the pharmacological basis for the medicinal use of Morinda citrifolia Linn in dyslipidemia using the aqueous-ethanolic extracts of its fruits (Mc.Cr.F), leaves (Mc.Cr.L) and roots (Mc.Cr.R).     

Risk analysis of the re-emergence of <Emphasis Type="Italic">Plasmodium vivax</Emphasis> malaria in Japan using a stochastic transmission model

Objectives  

This study analyzed the risk of infection with Plasmodium vivax in local residents through a stochastic simulation in which an infected tourist, local resident, or immigrants from an endemic area would visit Himi-shi, Toyama prefecture, which is a formerly endemic area in Japan.     

Fetal loss and maternal serum levels of 2,2',4,4',5,5'-hexachlorbiphenyl (CB-153) and 1,1-dichloro-2,2-bis(<Emphasis Type="Italic">p</Emphasis>-chlorophenyl)ethylene (p,p'-DDE) exposure: a cohort study in Greenland and two European populations

Background  

In the present study, the aim is to examine the risk of fetal loss related to environmental 2,2',4,4',5,5'-hexachlorobiphenyl (CB-153) or 1,1-dichloro-2,2-bis(p -chlorophenyl)ethylene (p,p'-DDE) exposure.     

Health-related quality of life and mental health in the medium-term aftermath of the <Emphasis Type="Italic">Prestige</Emphasis> oil spill in Galiza (Spain): a cross-sectional study

Background  

In 2002 the oil-tanker Prestige sank off the Galician coast. This study analyzes the effect of this accident on health-related quality of life (HRQoL) and mental health in the affected population.     

Are liver and renal lesions in East Greenland polar bears (<Emphasis Type="Italic">Ursus maritimus</Emphasis>) associated with high mercury levels?

Background  

In the Arctic, polar bears (Ursus maritimus) bio-accumulate mercury as they prey on polluted ringed seals (Phoca hispida) and bearded seals (Erignathus barbatus). Studies have shown that polar bears from East Greenland are among the most mercury polluted species in the Arctic. It is unknown whether these levels are toxic to liver and kidney tissue.     

Trends in Risk of Pregnancy Loss Among US Women, 1990–2011

Background

Pregnancy loss can have physical and psychological consequences for women and their families. Though a previous study described an increase in the risk of self‐reported pregnancy loss from 1970 to 2000, more recent examinations from population‐based data of US women are lacking.

Methods

We used data from the 1995, 2002, 2006–2010, 2011–2015 National Survey of Family Growth on self‐reported pregnancy loss (miscarriage, stillbirth, ectopic pregnancy) among US women (15–44 years) who reported at least one pregnancy conceived during 1990–2011 that did not result in induced termination (n = 20 012 women; n = 42 526 pregnancies). Trends in the risk of self‐reported pregnancy loss and early pregnancy loss (<12 weeks) were estimated, separately, by year of pregnancy conception (limited to 1990–2011 to ensure a sufficient sample of pregnancies for each year and maternal age group) using log‐Binomial and Poisson models, adjusted for maternal‐ and pregnancy‐related factors.

Results

Among all self‐reported pregnancies, excluding induced terminations, the risk of pregnancy loss was 19.7% and early pregnancy loss was 13.5% during 1990–2011. Risk of pregnancy loss increased by a relative 2% (rate ratio [RR] 1.02, 95% confidence interval [CI] 1.01, 1.02) per year in unadjusted models and 1% per year (RR 1.01, 95% CI 1.00, 1.02) during 1990–2011, after adjustment for maternal characteristics and pregnancy‐related factors. In general, trends were similar for early pregnancy loss.

Conclusion

From 1990 to 2011, risk of self‐reported pregnancy loss increased among US women. Further work is needed to better understand the drivers of this increase in reported pregnancy loss in the US.