Παρασκευή, 18 Απριλίου 2014

Science News SciGuru.com

Science News SciGuru.com

Link to Science News from SciGuru.com

Increased colorectal cancer risk from processed meat consumption: new gene variant identified

Posted: 18 Apr 2014 07:09 AM PDT

A new gene variant present in about one third of people appears to significantly increase the risk of colorectal cancer associated with eating processed meat. The study of over 9000 colorectal cancer patients compared with over 9000 control subjects suggests that a genetic variant called rs4143094 is significantly associated with processed meat consumption. These are the main findings of a study published on 17th April 2014 in the journal PLoS Genetics. The study is from a multinational team of collaborating laboratories.

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Male Vagina and Female Penis - Insects of Brazilian Caves with Reverse Sex

Posted: 17 Apr 2014 04:04 PM PDT

A sea slug discards its penis after copulation, the fish, Phallostethus cuulong, has its penis sprouting from its head. However in some insects from Brazilian caves, females are equipped with the penis and vagina in the males, according to a new study.

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Older women with gumption score high on compassion

Posted: 17 Apr 2014 02:57 PM PDT

Researchers at the University of California, San Diego School of Medicine report that older women, plucky individuals and those who have suffered a recent major loss are more likely to be compassionate toward strangers than other older adults.

The study is published in this month’s issue of the International Journal of Geriatric Psychiatry.

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Survival hope for melanoma patients thanks to new vaccine

Posted: 17 Apr 2014 09:29 AM PDT

University of Adelaide researchers have discovered that a new trial vaccine offers the most promising treatment to date for melanoma that has spread, with increased patient survival rates and improved ability to stop or reverse the cancer.

The vaccine, known as vaccinia melanoma cell lysate (VMCL), was given regularly as a treatment to 54 South Australian patients with advanced, inoperable melanoma over a 10-year period.

The long-term results of the study have now been published online in the Journal for ImmunoTherapy of Cancer.

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Osteoporosis Risk Heightened Among Sleep Apnea Patients

Posted: 17 Apr 2014 09:24 AM PDT

A diagnosis of obstructive sleep apnea may raise the risk of osteoporosis, particularly among women or older individuals, according to a new study published in the Endocrine Society’s Journal of Clinical Endocrinology & Metabolism (JCEM).

Sleep apnea is a condition that causes brief interruptions in breathing during sleep. Obstructive sleep apnea, the most common form, occurs when a person’s airway becomes blocked during sleep. If sleep apnea goes untreated, it can raise the risk for stroke, cardiovascular disease and heart attacks.

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Potential therapy for Fragile X syndrome suggested by studies on fruit flies

Posted: 17 Apr 2014 08:24 AM PDT

Fragile X syndrome is the most common inherited form of mental retardation, caused by loss of function of the gene for a protein called fragile X mental retardation protein (FMRP). A new study in the fruit fly (Drosophila melanogaster) indicates that the normal function of this protein is to bind directly to the ribosomes, which are the structures in the cell on which proteins are synthesised, and selectively inhibit translation of proteins.

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Neural cooperation essential for resetting circadian rhythms

Posted: 17 Apr 2014 08:16 AM PDT

Circadian behavioural responses to light input in fruit flies (Drosophila) depends on two groups of neurons, called the morning and evening oscillators ‘talking’ to each other. Previously it had been thought that these groups of neurons worked autonomously in scheduling peaks of activity at dawn and dusk, but a new study proves that they cooperate. The study published in the Cell Press journal Cell Reports on April 17th comes from researchers in the University of Massachusetts.

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