Spider venom can prevent damage to the brain that is associated with stroke


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Spider venom can prevent damage to the brain that is associated with stroke

According to the latest study conducted by researchers from the Institute of Molecular Biology at the University of Queensland in Australia, a peptide derived from the venom of the spider can be the key to the prevention of brain damage caused by stroke. Scientists believe that the peptide Hi1a – found in the venom of the Australian funnel web spider, can affect the ion channels in the brain, which in turn can play a crucial role in the prevention of damage, which entails the occurrence of disease.

Professor Glenn King of the Institute of Molecular Biology at the University of Queensland, Australia, and his colleagues use in their research the chemistry of arthropod predators such as spiders, scorpions, and keels. Since the stroke is the second leading cause of death around the world, and at the same time provide extremely a considerable incidence of disability and the inability of many patients experiencing it, scientists are looking for ways to avoid the side effects caused by this incredibly complicated health problem.

The venom of a spider is a rich source of stable, natural peptides that strongly modulate the activity of ion channels and receptors of nerve. Hence the research conducted by scientists from the Institute of Molecular Biology of the University of Queensland in Australia, tend to use them as a way to prevent damage in the brain that occur as a result of a stroke.

According to statistics, an average of 795,000 people a year in the United States are affected by stroke, and 610,000 are cases of stroke for the first time in their lives. Therefore, a stroke is a highly common problem. This disease is also a leading cause of various kinds of dysfunctions and disabilities in the world, and as a result, more than half of those that survive a stroke at the age of 65 or older, experiences constraints mobility.

The most common side effect associated with stroke is paralysis or impairment of a function of one side of the body, but there are also other problems that are associated with changes in the brain and human behavior. So far, scientists not found an effective medication that will help in the brain damages caused by stroke, which is why Professor King and his colleagues claim that discovered by them peptide Hi1a, can be a very likely the perfect solution to this problem.

Hi1a peptide derived from the venom of the Australian funnel web spider effectively protects the brains of rats from damage caused by stroke.

Hi1a works by blocking the activity of the acid channel 1a or ASIC1a in the brain. This ion channel is the primary contributor to stroke damage after ischemic stroke – the most common type of stroke. The ischemic stroke is associated with blockage of the blood supply to the brain, and its result is that oxygen cannot reach it.

In a study carried out by researchers from the Institute of Molecular Biology at the University of Queensland in Australia, a small dose of the Hi1 peptide (or exactly two nanograms per kilogram of body weight) was administered to rats within 8 hours after a stroke. The research team discovered then that the venom of the spider has a protective effect on brain tissue, including all neurological and motor functions.

The peptide Hi1a also provides protection for the core regions of the brain, which is the point of the brain, that is most affected due to oxygen depletion. Severe hypoxia core of the brain is associated with the occurrence of disease, and the principle causes irreversible side effects, because at the time its cells very quickly die, making stroke is related to high mortality.

Researchers at the Institute of Molecular Biology at the University of Queensland in Australia, however, are convinced that their discovery could lead to new strategies for developing a drug that could be of great importance in the treatment of stroke. Its appearance can a significantly improve the quality of life of patients affected by this unpleasant health problem.

As it seems, that this discovery is a real chance to find an effective way to minimize the effects of brain damage after this serious health problem. It may be, therefore, a real opportunity to reduce damage to the brain (or even complete prevention) and to decrease the risk of disability among people who have been affected by these devastating harm.

Having children can affect the length of our lives?


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Having children can affect the length of our lives?

Sleepless nights and stress, which often accompanies parents, may not sound like a way to live longer, but according to recent research, having children can add years to the lives of parents.

A team of researchers from the Karolinska Institute in Sweden recently said that people with the kids could live up to two years longer, compared to those with no children. Scientists say that already conducted earlier studies seemed to confirm this thesis, but they did not provide any specific reasons for this unusual relationship.

A small study conducted to verify how having children affect life expectancy, included an analysis of information on 704 481 men and 725 290 women who were born in the years 1911 to 1925, and reside in Sweden.

The team rated the test status of each person, the number of their children, as well as the sex of their descendants. The study determined how parenting influenced the lives of each of the individuals analyzed at the age of 60.

According to the researchers, having children can extend life by up to two years!

Compared to people who did not have children, people with at least one descendant reduced the risk of early death. According to individuals who were at 60 years of age, the researchers found that men with children live two years longer than men without children, while women with the kids, probably live about 1.5 years longer compared to women who do not have children.

The term results require consideration of some other factors which may affect the length of life, including among other things, the level of education and quality of life.

The researchers also found that the relationship between having a baby and a longer lifespan increase with age.

According to the survey, the later we are parents, the more likely we can gain the highest increase in life expectancy, and people with children, while not being in marriage derive greater joy of parenthood.

An exciting discovery of the study is that non-marriages – especially unmarried men, seem to enjoy the greatest joy of parenthood.

For example, an 85-year-old man who has at least one child, compared to a childless man, can live up to 1.2% as unmarried and 0.6% as married. Comparable data on women are respectively 0.9% and 0.8%.

The researchers speculate that the lack of a permanent relationship can influence that men with children not being in relationships informal or not having a wife, can rely more on their descendants in old age, which may explain the differences in risk of increased mortality comparing married and unmarried people.

Sex of children does not affect the length of life of parents

In contrast to earlier studies, a team of Swedish scientists found that the sex of children does not affect the life expectancy of their parents. The researchers suggest that discovered in previous studies the relationship between gender of children, and the extended period of parental life was flawed because it focused on social benefits that are associated with having a daughter.

In general, women have more social ties than men, and older childless people, especially men, seem to have much less social interaction compared to those with children. Older parents with daughters tend to have increased regular social contacts and get help from daughters if needed.

Researchers believe that greater support from offspring in later life may explain why people with children live longer compared to those without children. This statement, therefore, means that childless people, more often struggling with deficits of support at the end of life, which may affect its length.

One should not exclude individual selective elements as well as alternative explanations for this situation – parents with children show significantly healthier behaviors compared to childless ones.

A healthy sexual life can increase satisfaction with professional work


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A healthy sexual life can increase satisfaction with professional work

As is apparent from last year’s survey, up to 50% of workers in the United States is not satisfied with their job. New research suggests, however, that there is a surprising way to increase job satisfaction, and that is the maintenance of a healthy sex life.

A healthy sex life can improve satisfaction and motivation at work

The researchers found that adults who lead a more active sexual life are less likely to report lower satisfaction and commitment to work. Keith Leavitt – professor of the College of Business at Oregon State University, and his colleagues published the discovery in the Journal of Management.

Through sex, our body releases the dopamine – a neurotransmitter that is associated with the feeling of pleasure and satisfaction in our brain. Having sex stimulates the release of “hormone of love” which is oxytocin, that plays a significant role in sexual stimulation and the creation of social ties.

All these elements seem to confirm the fact that sex can improve mood and psychological well-being, thus in their study, the researchers agreed to see how it affects mood and behavior in the workplace.

Scientists their study verified 159 people who are within marriage. Twice a day for two weeks, participants completed a brief questionnaire in which they were asked to provide information about their sexual involvement at home, and their behavior at work the day after sexual intercourse.

As is well known, sex gives the benefits societal, emotional and physiological, and the results of tests showed clearly that the involvement of sex was associated with a more positive mood the next day. Participants reported a better mood, which was related to sex the previous day, and also they felt greater job satisfaction and much more engaged in their duties at work.

These findings established after taking into account other factors that could have an effect on mood, including overall life satisfaction or quality of sleep. As the researchers add, sex should be one of the most important aspects of our lives, because for his case we are apparently feeling better and simply, we are happier.

Maintaining a healthy relationship in which there is a healthy sexual life helps each of us derive greater job satisfaction, and also allows to increase involvement in the performance of professional duties. These active elements, therefore, bring benefits to both employees and the companies for which they are working.

The survey results, however, seem to have a negative aspect in the conflict between job duties and home. People who bring work home reduced the likelihood of sex. This situation, in turn, can lead to a poorer productivity in the workplace. Besides, it was observed that the widespread use of smartphones and other devices makes contacts at work taking place in the virtual world via emails and more, increasing the need to work outside of working hours.

Technologies become a temptation that makes us forget about the most important things, so sometimes it is worth to disconnect, and the best after-hours completely cut off from work and spend the time to cultivate a relationship and sex life – it will be good for all ( as well as for employers)!