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How much sex is enough?

Research published in BMC Evolutionary Biology shows that polygamous mice produce more fertile offspring due to increased sperm competitiveness. After 12 generations of competitive selection, polygamous males outperformed monogamous males in both paternity and fertility rates.

SourceBMC (BioMed Central)·JournalBMC Evolutionary Biology·DateJan 19, 2011

Creating simplicity: How music fools the ear

Researchers used music compression algorithms to study brain response to complex and simple sounds. They found that enduring musical masterpieces tend to have high compressibility, suggesting our brains respond to simple patterns. This theory may lead composers to create music with simpler data structures for greater appeal.

SourceBMC (BioMed Central)·JournalBMC Research Notes·DateJan 19, 2011

Big breakfast bunkum

A new study published in Nutrition Journal found that consuming a large breakfast does not lead to increased calorie burn throughout the day. In fact, researchers discovered that individuals who had bigger breakfasts tended to consume fewer calories during lunch and dinner, offsetting the extra calories consumed at breakfast.

SourceBMC (BioMed Central)·JournalNutrition Journal·DateJan 16, 2011

Peer pressure can keep you healthy

A study of 3610 Australian women found that social norms play a significant role in promoting physical activity and healthy eating behaviors. Women who surrounded themselves with friends who engaged in healthy behaviors were more likely to adopt similar habits.

SourceBMC (BioMed Central)·JournalInternational Journal of Behavioral Nutrition and Physical Activity·DateDec 6, 2010

Allotment gardeners reap healthy rewards

A study found that allotment gardeners, especially those over 60, exhibit increased levels of physical activity and better overall health compared to their non-gardening counterparts. The research also suggests that having an allotment can promote healthy aging and lifestyle habits.

SourceBMC (BioMed Central)·JournalEnvironmental Health·DateNov 22, 2010

Males more considerate than imagined

Researchers found that plugged females mated just as often and were more attractive than unplugged ones. Plugging improved female fitness by increasing egg production, suggesting a male's act may be beneficial to its partner. The study reveals new insights into the reproductive behavior of nematode worms.

SourceBMC (BioMed Central)·JournalFrontiers in Zoology·DateNov 1, 2010

Bicarbonate adds fizz to players' tennis performance

A randomized, controlled trial found that sodium bicarbonate supplementation maintained service and forehand ground stroke consistency in tennis players after a simulated match. The study showed no decline in skilled tennis performance in players who received the supplement.

SourceBMC (BioMed Central)·JournalJournal of the International Society of Sports Nutrition·DateOct 25, 2010

New evidence of the power of open access

New evidence supports the power of open access in increasing citation impact for higher-quality research. The study found that mandatory and self-selected open access articles have similar citation impacts, contradicting the self-selection bias hypothesis.

SourcePLOS·JournalPLOS ONE·DateOct 18, 2010

Western diet exacerbates sepsis

A high-fat Western diet has been found to exacerbate the inflammatory response to sepsis, a condition of systemic bacterial infection. This increased inflammation can lead to severe outcomes, including higher mortality rates and more morbidity in obese patients.

SourceBMC (BioMed Central)·JournalBMC Physiology·DateOct 18, 2010

Insight gained into age-related hearing loss

Researchers at the University of Minnesota Medical School studied two closely linked genes that contribute to hearing function in mice, revealing separate maintenance pathways for β-actin and γ-actin proteins. These findings suggest important roles for each protein in maintaining auditory function during aging.

SourcePLOS·JournalPLOS Genetics·DateOct 14, 2010

Ultrasound device improves poor bone healing

Researchers used low-intensity pulsed ultrasound (LIPUS) to treat patients with delayed unions of the tibia, resulting in a 34% increase in bone mineral density. This non-invasive treatment modality shows promise as a viable option for patients suffering from these injuries.

SourceBMC (BioMed Central)·JournalBMC Musculoskeletal Disorders·DateOct 7, 2010

Female fish flaunt fins to attract a mate

In a breakthrough study, researchers found that female cichlid fish develop exceptionally large pelvic fins, differing from male fins in shape and color. Males prefer females with larger pelvic fins, leading to the growth of disproportionately sized fins.

SourceBMC (BioMed Central)·JournalBMC Evolutionary Biology·DateOct 7, 2010

Just 2 drinks slow reactions in older people

Researchers found that two single vodka and orange drinks significantly affected obstacle avoidance test results in senior volunteers. The study showed delayed response times and reduced amplitudes after just one drink, highlighting the negative impact of low-blood-alcohol concentrations on dexterity.

SourceBMC (BioMed Central)·JournalBMC Research Notes·DateSep 22, 2010

Seagulls harbor antibiotic resistant bacteria

A recent study published in Proteome Science found that one in ten seagull droppings contain 'superbug' bacteria resistant to Vancomycin. The researchers used a novel technique called proteomics to detect bacterial proteins connected to antibiotic resistance, providing new targets for antimicrobial agents and potential biomarkers.

SourceBMC (BioMed Central)·JournalProteome Science·DateSep 20, 2010

Intensive care diaries protect patients from PTSD

Researchers found that intensive care diaries significantly reduced new onset post-traumatic stress disorder (PTSD) following critical illness. The diaries, completed daily by nursing staff and relatives, featured information about the patient's stay accompanied by photographs, helping to alleviate delusional memories and fears.

SourceBMC (BioMed Central)·JournalCritical Care·DateSep 16, 2010

Anti-aphrodisiac protects young bedbugs

Researchers have discovered that young bedbug nymphs release aldehyde pheromones to signal to males that they should look elsewhere, providing a new insight into the chemical communication system of bed bugs. This finding may lead to the development of mating disruption techniques to decrease bed bug populations.

SourceBMC (BioMed Central)·JournalBMC Biology·DateSep 8, 2010

First Irish genome sequenced

A research team from UCD Conway Institute has successfully sequenced the first entire genome of an Irish individual, revealing nearly 200,000 indels and over 3 million SNPs. The study identifies novel genetic markers specific to Irish ancestry and potential disease indicators.

SourceBMC (BioMed Central)·JournalGenome Biology·DateSep 7, 2010

Ugly Betty forced to aim for Average Joe

Researchers found that female sparrows of low quality are more likely to choose male sparrows with smaller or average-sized badges, rather than prioritizing size. These less attractive males tend to invest more time in parental care, providing a silver lining for unattractive females.

SourceBMC (BioMed Central)·JournalBMC Evolutionary Biology·DateAug 26, 2010

Sad mothers have small babies

A study in rural Bangladesh found that women with depression and anxiety during pregnancy gave birth to smaller babies, which are more likely to die in infancy. The research highlights the importance of mental health support services to reduce child mortality in developing countries.

SourceBMC (BioMed Central)·JournalBMC Public Health·DateAug 25, 2010

A moment on the lips, a year on the hips

A four-week episode of increased energy intake and decreased exercise caused significant weight gain, which was mostly lost within six months. However, the intervention group showed an increased fat mass compared to baseline after two and a half years, highlighting the long-term effects of short-term behavioral changes.

SourceBMC (BioMed Central)·JournalNutrition and Metabolism·DateAug 24, 2010

Why are male spiders small while females are giant?

Researchers found that small male spiders can carry out the 'bridging' maneuver, a common mode of locomotion for vegetation-inhabiting spiders. This efficiency allows them to have more mating opportunities and compete better for receptive females, leading to selective pressure for smaller size.

SourceBMC (BioMed Central)·JournalBMC Evolutionary Biology·DateAug 2, 2010

Migrating birds can't control themselves

Researchers found that migratory birds become less capable of resisting temptation, pecking at food-giving buttons without learning to stop. The study suggests that temporal fragmentation of sleep may play a role in the loss of behavioral inhibition during migration.

SourceBMC (BioMed Central)·JournalBMC Neuroscience·DateJul 28, 2010

Brain scans may help guide career choice

Researchers used MRI scans to investigate the neurological basis for performance on vocational guidance tests, finding that gray matter correlates differ between broad and narrow test types. This study provides a basis for investigating whether brain scans can provide unique information for vocational choice.

SourceBMC (BioMed Central)·JournalBMC Research Notes·DateJul 21, 2010

How do you make the perfect sled dog?

Researchers identified the genetic contributions of various breeds to Alaskan sled dogs' performance. The study found that Alaskan Malamute and Siberian Husky traits are associated with enhanced endurance, while Pointer and Saluki contribute to speed, and Anatolian Shepherd improves work ethic.

SourceBMC (BioMed Central)·JournalBMC Genetics·DateJul 21, 2010

Women in their 50s more prone to PTSD than men

Research found that women are more prone to post-traumatic stress disorder (PTSD) than men, with the highest risk peaking at age 51-55. The study suggests that increased lifespan may contribute to this difference, as individuals have more years to experience traumatic events and their consequences.

SourceBMC (BioMed Central)·JournalAnnals of General Psychiatry·DateJul 20, 2010

Do cleaning products cause breast cancer?

Researchers found that women who used more air fresheners and products for mold and mildew control had a higher incidence of breast cancer. The study suggests that cleaning products may contribute to breast cancer risk, highlighting the need for further investigation into this potential link.

SourceBMC (BioMed Central)·JournalEnvironmental Health·DateJul 19, 2010

Uncovering behavior of long-dead insects

Researchers from Natural History Museum of Bern reveal courtship behaviors of male parasitoid wasps through antennal structures and coiling behavior. The study, published in BMC Evolutionary Biology, emphasizes the importance of natural history museum collections.

SourceBMC (BioMed Central)·JournalBMC Evolutionary Biology·DateJul 19, 2010

Hot town, summer in the city

Researchers developed a definition for heat waves and found that long-duration heat waves have the greatest impact on mortality, with elderly women particularly vulnerable. The study highlights the need for tailored public health interventions to address heat-related mortality in different cities.

SourceBMC (BioMed Central)·JournalEnvironmental Health·DateJul 15, 2010

What happens to your genes when you smoke a cigarette?

A groundbreaking study published in BMC Medical Genomics found significant changes in gene expression due to cigarette smoke exposure. The research, involving 1,240 individuals, identified over 323 unique genes whose expression levels were correlated with smoking behavior, revealing a sobering link between smoking and gene expression.

SourceBMC (BioMed Central)·JournalBMC Medical Genomics·DateJul 14, 2010

'Tough love' no good for obesity interventions

Researchers found that obese people preferred public health interventions perceived as non-judgmental and empowering. Participants were less likely to view stigmatizing or shaming approaches as effective. Non-commercial techniques, such as personalised care planning and long-term support systems, were also supported.

SourceBMC (BioMed Central)·JournalBMC Public Health·DateJul 14, 2010

Gene knockout makes female mice masculine

Researchers created FucM mouse mutants to investigate the role of the fucose mutarotase enzyme in sexual preference. The study found that female mice with the gene knockout displayed drastically reduced sexual receptivity and altered brain development, leading to masculine-like behavior.

SourceBMC (BioMed Central)·JournalBMC Genetics·DateJul 8, 2010

Salmon in hot water

Researchers found that raising juvenile salmon at 16°C causes skeletal deformities. Fast growth temperatures disrupt bone and cartilage production, leading to increased deformity rates. The study suggests temperature-induced growth is severely affecting osteoblasts and chondrocyte cells.

SourceBMC (BioMed Central)·JournalBMC Physiology·DateJul 5, 2010

Dark chocolate lowers blood pressure

Researchers found that consuming dark chocolate can significantly reduce systolic blood pressure by 5mmHg, comparable to 30 minutes of moderate exercise. This effect is most pronounced in individuals with high blood pressure, potentially reducing the risk of cardiovascular events by 20% over five years.

SourceBMC (BioMed Central)·JournalBMC Medicine·DateJun 28, 2010

Genetics in bloom

A team of researchers discovered the molecular mechanisms governing Gerbera's unique inflorescence structure, characterized by three different flower types. The study highlights an expanded gene family that likely plays a new role in the formation of this complex structure, differing from Arabidopsis species.

SourceBMC (BioMed Central)·JournalBMC Plant Biology·DateJun 24, 2010

Swiss media likely to twist positive health messages

A study published in BMC Research Notes found that public health campaigns in Swiss media frequently featured negative threats despite a focus on positive, gain-framed messages. Regional newspapers played a crucial role in reporting the campaign, producing more detailed articles than other media outlets.

SourceBMC (BioMed Central)·JournalBMC Research Notes·DateJun 23, 2010