Cannabis is known as a material enter the category of narcotic addicts and the first class in Indonesian law. However, later claimed marijuana has many benefits, especially for kesehatan.What say?
A recent study by a team from the University of Alberta shows that cannabis leaf turned out to contain active ingredients that can increase appetite of cancer patients.
"The active ingredient in marijuana called delta-9-tetrahydrocannabinol (THC), can increase appetite and taste ability in patients with advanced cancer," explained the researchers.
Previously, marijuana has been known to reduce symptoms of nausea in cancer patients, so the use of THC also can function as an appetite stimulant.
Results showed 37 percent of cancer patients who took 2.5 milligrams of the compound in pill form of THC 2 or 3 times a day for 18 days, reported an increase in appetite, compared with 30 percent of patients who took placebo (empty medicine).
And 64 percent of patients who took THC reported appetite increases as compared with 50 percent of patients who took placebo.
"Cannabis has a bad reputation for healthy people, but studies show that marijuana also has a good effect for cancer patients," says researcher Wendy Wismer, a food scientist at the University of Alberta in Canada.
Wismer said that cancer patients can enjoy a meal and not feel hungry is a big improvement to improve quality of life.
"Patients with advanced cancer often suffer from wasting syndrome, in which the body burns calories more quickly than people who do not suffer from cancer. But on the other hand, cancer patients often lose their appetite," said Wismer.
According to Wismer, this study may indicate that THC can help overcome wasting syndrome. "Furthermore, these findings should be tested in larger studies with more patients," said Wismer.
Epilepsy Cure
Useful addition to appetite enhancer for patients with cancer, cannabis is also claimed to cure epilepsy. Scientists from the United Kingdom have found that this plant could treat epilepsy and now scientists are preparing clinical trials in humans.
Dr Ben Whalley, drugs researchers from the University of Reading recently proved some compounds in cannabis plants to effectively relieve the electric prod prod-occur in the brain. Prod-prod it is the trigger seizures in people with epilepsy.
The compound is referred to in antaramnya cannabidiol, one of the cannabis content that users create can be drunk. In treating epilepsy, cannabidiol is assisted by another compound in cannabis plants whose names are still foreign enough that GWP42006.
Preclinical Tests on animals have shown, both compounds are very effective and safe to relieve electric prod prod-trigger seizures. To determine the appropriate therapeutic dose for humans, in the near Dr Whalley and his team will conduct clinical trials.
If successful, the results of this study will slightly change the image of marijuana that had been bad. Than originally synonymous with crime and abuse into plants that are beneficial to the development of pharmaceutical science and medicine.
"Previously, in the era of the '60s and '70s marijuana once synonymous with the abuse that is rarely seen its potential for medical purposes," said Dr Whelley as quoted by the Telegraph.
Benefits of marijuana in the medical field is already much studied in recent decades. Some of them also proved that the plant is efficacious as a medicine, among others overcome the pain in patients with multiple schlerosis and cancer.
Senin, 09 Mei 2011
Biznis-on line: Kenapa kaum ibu lebih cepat bangun pagi ?
Biznis-on line: Kenapa kaum ibu lebih cepat bangun pagi ?: "Dalam setiap keluarga, ibu atau anak perempuan biasanya lebih dulu bangun pagi ketimbang ayah atau anak laki-laki. Mengapa demikian? Ada b..."
Biznis-on line: Why mothers more quickly get up early?
Biznis-on line: Why mothers more quickly get up early?: "In each family, usually the mother or daughter woke up earlier than his father or son. Why is that? There are many differences between the..."
Kenapa kaum ibu lebih cepat bangun pagi ?
Dalam setiap keluarga, ibu atau anak perempuan biasanya lebih dulu bangun pagi ketimbang ayah atau anak laki-laki. Mengapa demikian?
Ada banyak perbedaan antara tubuh laki-laki dan perempuan. Dan penelitian terbaru menemukan bahwa perempuan cenderung memiliki siklus tidur yang lebih pendek ketimbang laki-laki.
Hal inilah yang membuat perempuan biasanya tidur lebih awal dan bangun di pagi hari pun lebih awal. Hal ini pula yang menyebabkan lebih banyak perempuan yang mengalami insomnia dan depresi musiman.
"Hal ini memiliki implikasi seberapa mudah mereka (perempuan) bisa tertidur dan seberapa baik (kualitas) mereka bisa tidur. Ini bisa mengubah dan mempengaruhi adanya perbedaan antara individu untuk pergi ke tempat tidur dan bangun di pagi hari," jelas peneliti Jeanne Duffy dari Harvard Medical School, seperti dilansir Livescience.
Para peneliti menemukan bahwa rata-rata dalam 24 jam siklus tidur-bangun perempuan (disebut ritme sirkadian) sekitar enam menit lebih pendek dibandingkan laki-laki, tetapi dalam realitas tidur dan bangun sebenarnya ini sama artinya dengan bangun pagi sekitar 30 menit lebih awal.
"Penemuan ini bisa saja hubungannya dengan perbedaan tingkat estrogen," kata Duffy.
Hal ini bisa berarti bahwa tingkat hormon dapat mengubah ritme sirkadian, meskipun bukti pada perempuan pra dan pasca-menopause menunjukkan bahwa siklus tidur terkait dengan paparan hormon selama pengembangan (hormon), bukan karena tingkat dewasaan.
"Mencari tahu apa yang mengontrol jam biologis kita adalah salah satu pertanyaan yang paling penting dalam penelitian kronologi manusia sekarang," jelas Alfred Lewy, Oregon Health and Science University di Portland, yang tidak terlibat dalam penelitian ini.
Dalam penelitian ini, tim peneliti yang dipimpin oleh Duffy dan penasehat Charles Czeisler, mempelajari siklus tidur dari 52 perempuan dan 105 laki-laki selama dua sampai enam minggu di laboratorium.
Mereka meneliti dua indikator ritme sirkadian, yaitu inti suhu tubuh partisipan dan tingkat hormon melatonin (yang memainkan peran dalam pengaturan siklus tidur-bangun). Sementara itu, partisipan mengikuti jadwal ekstrem (setelah siklus tidur, kegiatan tersebar 20 atau 28 jam sehari, bukan 24 jam normal) di ruangan remang-remang.
Lingkungan tersebut memungkinkan peneliti untuk mengukur irama sirkadian alami dari individu, yang biasanya reset setiap hari oleh paparan cahaya alami.
Tanpa isyarat luar, tubuh kembali pada siklus alami yang kadang-kadang lebih panjang atau pendek dari 24 jam.
Hasilnya, dalam studi ini sekitar 35 persen perempuan memiliki ritme sirkadian lebih pendek dari 24 jam, dibandingkan dengan 14 persen laki-laki.
Perbedaan ini penting bagi orang dengan depresi musiman, yang dirawat dengan terapi cahaya untuk me-reset irama sirkadian. Jika memiliki siklus yang lebih pendek dari 24 jam, orang perlu cahaya malam untuk melakukan sinkronisasi atas, dan jika itu lebih dari 24 jam, orang membutuhkan terang di pagi hari.
Penelitian ini telah dipublikasikan secara online pada 2 Mei dalam jurnal Proceedings of the National Academy of Sciences.
Ada banyak perbedaan antara tubuh laki-laki dan perempuan. Dan penelitian terbaru menemukan bahwa perempuan cenderung memiliki siklus tidur yang lebih pendek ketimbang laki-laki.
Hal inilah yang membuat perempuan biasanya tidur lebih awal dan bangun di pagi hari pun lebih awal. Hal ini pula yang menyebabkan lebih banyak perempuan yang mengalami insomnia dan depresi musiman.
"Hal ini memiliki implikasi seberapa mudah mereka (perempuan) bisa tertidur dan seberapa baik (kualitas) mereka bisa tidur. Ini bisa mengubah dan mempengaruhi adanya perbedaan antara individu untuk pergi ke tempat tidur dan bangun di pagi hari," jelas peneliti Jeanne Duffy dari Harvard Medical School, seperti dilansir Livescience.
Para peneliti menemukan bahwa rata-rata dalam 24 jam siklus tidur-bangun perempuan (disebut ritme sirkadian) sekitar enam menit lebih pendek dibandingkan laki-laki, tetapi dalam realitas tidur dan bangun sebenarnya ini sama artinya dengan bangun pagi sekitar 30 menit lebih awal.
"Penemuan ini bisa saja hubungannya dengan perbedaan tingkat estrogen," kata Duffy.
Hal ini bisa berarti bahwa tingkat hormon dapat mengubah ritme sirkadian, meskipun bukti pada perempuan pra dan pasca-menopause menunjukkan bahwa siklus tidur terkait dengan paparan hormon selama pengembangan (hormon), bukan karena tingkat dewasaan.
"Mencari tahu apa yang mengontrol jam biologis kita adalah salah satu pertanyaan yang paling penting dalam penelitian kronologi manusia sekarang," jelas Alfred Lewy, Oregon Health and Science University di Portland, yang tidak terlibat dalam penelitian ini.
Dalam penelitian ini, tim peneliti yang dipimpin oleh Duffy dan penasehat Charles Czeisler, mempelajari siklus tidur dari 52 perempuan dan 105 laki-laki selama dua sampai enam minggu di laboratorium.
Mereka meneliti dua indikator ritme sirkadian, yaitu inti suhu tubuh partisipan dan tingkat hormon melatonin (yang memainkan peran dalam pengaturan siklus tidur-bangun). Sementara itu, partisipan mengikuti jadwal ekstrem (setelah siklus tidur, kegiatan tersebar 20 atau 28 jam sehari, bukan 24 jam normal) di ruangan remang-remang.
Lingkungan tersebut memungkinkan peneliti untuk mengukur irama sirkadian alami dari individu, yang biasanya reset setiap hari oleh paparan cahaya alami.
Tanpa isyarat luar, tubuh kembali pada siklus alami yang kadang-kadang lebih panjang atau pendek dari 24 jam.
Hasilnya, dalam studi ini sekitar 35 persen perempuan memiliki ritme sirkadian lebih pendek dari 24 jam, dibandingkan dengan 14 persen laki-laki.
Perbedaan ini penting bagi orang dengan depresi musiman, yang dirawat dengan terapi cahaya untuk me-reset irama sirkadian. Jika memiliki siklus yang lebih pendek dari 24 jam, orang perlu cahaya malam untuk melakukan sinkronisasi atas, dan jika itu lebih dari 24 jam, orang membutuhkan terang di pagi hari.
Penelitian ini telah dipublikasikan secara online pada 2 Mei dalam jurnal Proceedings of the National Academy of Sciences.
Why mothers more quickly get up early?
In each family, usually the mother or daughter woke up earlier than his father or son. Why is that?
There are many differences between the male body and female. And a recent study found that women tend to have shorter sleep cycles than men.
This makes women usually went to bed early and wake up in the morning too early. This is also causing more and more women are experiencing insomnia and seasonal depression.
"This has implications for how easily they (women) could fall asleep and how well (quality) they can sleep. It can change and contribute to differences between individuals to go to bed and wake up in the morning," said Harvard researcher Jeanne Duffy Medical School, as reported by LiveScience.
The researchers found that on average in the 24-hour sleep-wake cycle of women (called a circadian rhythm), approximately six minutes shorter than men, but in reality this is actually sleep and wake up early is tantamount to about 30 minutes early.
"These findings could be related to differences in levels of estrogen," said Duffy.
This could mean that the hormone levels can alter circadian rhythms, although the evidence on female pre-and post-menopausal showed that the sleep cycle associated with hormone exposure during development (hormones), not because the level of maturity.
"Finding out what that control our biological clock is one of the most important question in the chronology of human research now," said Alfred Lewy, Oregon Health and Science University in Portland, who was not involved in this research.
In this study, the research team led by Duffy and advisor to Charles Czeisler, studying the sleep cycles of 52 women and 105 men for two to six weeks in the laboratory.
They examined two indicators of circadian rhythms, the core body temperature of participants and level of the hormone melatonin (which plays a role in regulating sleep-wake cycle). Meanwhile, participants follow an extreme schedule (after a sleep cycle, activities are spread 20 or 28 hours a day, not the normal 24 hours) in the dim room.
The environment allows researchers to measure the natural circadian rhythm of the individual, which typically reset every day by exposure to natural light.
Without external cues, the body back in a natural cycle that is sometimes longer or shorter than 24 hours.
The result, in this study about 35 percent of women have a shorter circadian rhythms of 24 hours, compared with 14 percent of men.
This distinction is important for people with seasonal depression, treated with light therapy to reset the circadian rhythm. If you have a cycle shorter than 24 hours, people need to light the night to sync up, and if it is more than 24 hours, people need a light in the morning.
This research was published online on May 2 in the journal Proceedings of the National Academy of Sciences.
There are many differences between the male body and female. And a recent study found that women tend to have shorter sleep cycles than men.
This makes women usually went to bed early and wake up in the morning too early. This is also causing more and more women are experiencing insomnia and seasonal depression.
"This has implications for how easily they (women) could fall asleep and how well (quality) they can sleep. It can change and contribute to differences between individuals to go to bed and wake up in the morning," said Harvard researcher Jeanne Duffy Medical School, as reported by LiveScience.
The researchers found that on average in the 24-hour sleep-wake cycle of women (called a circadian rhythm), approximately six minutes shorter than men, but in reality this is actually sleep and wake up early is tantamount to about 30 minutes early.
"These findings could be related to differences in levels of estrogen," said Duffy.
This could mean that the hormone levels can alter circadian rhythms, although the evidence on female pre-and post-menopausal showed that the sleep cycle associated with hormone exposure during development (hormones), not because the level of maturity.
"Finding out what that control our biological clock is one of the most important question in the chronology of human research now," said Alfred Lewy, Oregon Health and Science University in Portland, who was not involved in this research.
In this study, the research team led by Duffy and advisor to Charles Czeisler, studying the sleep cycles of 52 women and 105 men for two to six weeks in the laboratory.
They examined two indicators of circadian rhythms, the core body temperature of participants and level of the hormone melatonin (which plays a role in regulating sleep-wake cycle). Meanwhile, participants follow an extreme schedule (after a sleep cycle, activities are spread 20 or 28 hours a day, not the normal 24 hours) in the dim room.
The environment allows researchers to measure the natural circadian rhythm of the individual, which typically reset every day by exposure to natural light.
Without external cues, the body back in a natural cycle that is sometimes longer or shorter than 24 hours.
The result, in this study about 35 percent of women have a shorter circadian rhythms of 24 hours, compared with 14 percent of men.
This distinction is important for people with seasonal depression, treated with light therapy to reset the circadian rhythm. If you have a cycle shorter than 24 hours, people need to light the night to sync up, and if it is more than 24 hours, people need a light in the morning.
This research was published online on May 2 in the journal Proceedings of the National Academy of Sciences.
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