Studies have shown that partial nephrectomy, only removing the part of the kidney in which a small tumor (typically 4 centimeters or less) resides, produces equivalent outcomes to complete removal of the kidney, or radical nephrectomy, and may prevent the development of a serious side effect, chronic kidney disease.
How reliable are the screening tests for prostate cancer?
Neither of the screening tests for prostate cancer is perfect. Most men with an elevated PSA level do not have prostate cancer (false positives), and some men with prostate cancer have a low PSA level (false negatives).
Can prostate cancer be found before a man has symptoms?
Yes. Prostate cancer screening is looking for the disease before a person has any symptoms. Two screening tests commonly used to detect prostate cancer in the absence of symptoms are the digital rectal exam (DRE), in which a doctor feels the prostate through the rectum to find hard or lumpy areas, and a blood test that detects a substance made by the prostate called prostate-specific antigen (PSA).
Supplements Do Not Prevent Prostate Cancer
For many years, there has been a large amount of anecdotal evidence suggesting that vitamins and other dietary supplements are able to preclude the development of prostate cancer. For example, past retrospective studies authored by O. Heinonen and L. Clark had provided some evidence thatvitamin Eand selenium could provide a benefit in reducing prostate cancer occurrence. The Selenium and Vitamin E Cancer Prevention Trial (SELECT) was launched to truly evaluate the efficacy of these supplements. The trial found that supplementation with vitamin E, selenium, or the combination of the two did not provide men any advantage with regard to prostate cancer diagnosis. Doctors now advise against using these agents as a prostate cancer preventative.
Maintenance of a healthy diet and weight is still a good way to lower the risk of developing prostate cancer since obesity has been linked to an increased risk of developing the disease. There are also many other supplements that may prove to be beneficial in preventing prostate cancer. Currently, trials are recruiting participants to evaluate the roles of fish oil, low-fat diet, soy protein, and lycopene in prostate cancer prevention. Healthy men that may be at a higher risk of developing this disease, or have an interest in contributing to research aimed at reducing the occurrence of this wide-spread cancer may consider enrolling in these studies.
Sunday, March 6, 2011
Tuesday, February 1, 2011
Vitamin C
Vitamin C has very important functions in the human body. It is necessary for the formation of the collagen – a substance that is included in the structure of the bones, teeth and blood vessels. Vitamin C can aid in strengthening bones, helps the blood vessels to be more elastic and can help your wounds heal fast.
Food Sources
Good sources of Vitamin C are:
* Avocado
* Black currants
* Blueberries
* Broccoli
* Brussels sprouts
* Cabbage
* Collard greens
* Grapefruit
* Green pepper
* Guava
* Kale, lemon
* Lime
* Mango
* Melon
* Orange
* Papaya
* Pineapple
* Potato
* Rose hip
* Spinach
* Strawberry
* Tomato
* Watercress
Vitamin C Requirement
The current recommended dietary intake for vitamin C is 90 mg for men and 75 mg for women (add an extra 35 mg for smokers). There's no good evidence that megadoses of vitamin C improve health.
As the evidence continues to unfold, 200 to 300 mg of vitamin C a day appears to be a good target. This is easy to hit with a good diet and a standard multivitamin. Excellent food sources of vitamin C are citrus fruits or citrus juices, berries, green and red peppers, tomatoes, broccoli, and spinach. Many breakfast cereals are also fortified with vitamin C.
Vitamin C Deficiency
Vitamin C deficiency causes scurvy. In adults, the deficiency usually results from a diet low in vitamin C. For example, vitamin C deficiency may develop in people who eat only such foods as dried meat, tea, toast, and canned vegetables.
Pregnancy, breastfeeding, surgery, and burns can significantly increase the body's requirements for vitamin C and the risk of vitamin C deficiency. Smoking increases the vitamin C requirement by 30 to 50%.
Scurvy in infants is rare because breast milk usually supplies enough vitamin C and infant formulas are fortified with the vitamin.
In adults, a few months of a diet low in vitamin C can cause bleeding under the skin (particularly around hair follicles or as bruises), around the gums, and into the joints. Symptoms may include irritability, depression, weight loss, fatigue, and general weakness. The gums become swollen, purple, and spongy. The teeth eventually loosen. Infections may develop, and wounds do not heal.
In infants, symptoms include irritability, pain during movement, and loss of appetite. Infants do not gain weight as they normally do. Bone growth is impaired, and bleeding and anemia may occur.
The diagnosis of scurvy is based on symptoms. Blood tests detect a very low level of vitamin C. Scurvy is treated with daily vitamin C supplements. Such treatment plus iron supplements can cure the anemia.
Food Sources
Good sources of Vitamin C are:
* Avocado
* Black currants
* Blueberries
* Broccoli
* Brussels sprouts
* Cabbage
* Collard greens
* Grapefruit
* Green pepper
* Guava
* Kale, lemon
* Lime
* Mango
* Melon
* Orange
* Papaya
* Pineapple
* Potato
* Rose hip
* Spinach
* Strawberry
* Tomato
* Watercress
Vitamin C Requirement
The current recommended dietary intake for vitamin C is 90 mg for men and 75 mg for women (add an extra 35 mg for smokers). There's no good evidence that megadoses of vitamin C improve health.
As the evidence continues to unfold, 200 to 300 mg of vitamin C a day appears to be a good target. This is easy to hit with a good diet and a standard multivitamin. Excellent food sources of vitamin C are citrus fruits or citrus juices, berries, green and red peppers, tomatoes, broccoli, and spinach. Many breakfast cereals are also fortified with vitamin C.
Vitamin C Deficiency
Vitamin C deficiency causes scurvy. In adults, the deficiency usually results from a diet low in vitamin C. For example, vitamin C deficiency may develop in people who eat only such foods as dried meat, tea, toast, and canned vegetables.
Pregnancy, breastfeeding, surgery, and burns can significantly increase the body's requirements for vitamin C and the risk of vitamin C deficiency. Smoking increases the vitamin C requirement by 30 to 50%.
Scurvy in infants is rare because breast milk usually supplies enough vitamin C and infant formulas are fortified with the vitamin.
In adults, a few months of a diet low in vitamin C can cause bleeding under the skin (particularly around hair follicles or as bruises), around the gums, and into the joints. Symptoms may include irritability, depression, weight loss, fatigue, and general weakness. The gums become swollen, purple, and spongy. The teeth eventually loosen. Infections may develop, and wounds do not heal.
In infants, symptoms include irritability, pain during movement, and loss of appetite. Infants do not gain weight as they normally do. Bone growth is impaired, and bleeding and anemia may occur.
The diagnosis of scurvy is based on symptoms. Blood tests detect a very low level of vitamin C. Scurvy is treated with daily vitamin C supplements. Such treatment plus iron supplements can cure the anemia.
Ants' ecosystem role is 'key'
Research by the University of Exeter has revealed that ants have a big impact on their local environment as a result of their activity as 'ecosystem engineers' and predators.
Ecohydrology - New Academic Journal Library Recommendation - onlinelibrary.wiley.com/journal/eco
The study, published in the Journal of Animal Ecology, found that ants have two distinct effects on their local environment.
Firstly, through moving of soil by nest building activity and by collecting food they affect the level of nutrients in the soil. This can indirectly impact the local populations of many animal groups, from decomposers such as Collembola, to species much higher up the food chain.
Secondly, they prey on a wide range of other animals, including larger prey which can be attacked by vast numbers of ant workers.
Dirk Sanders, an author of the study from the university's Centre for Ecology and Conservation, said: "Ants are very effective predators which thrive in huge numbers. They're also very territorial and very aggressive, defending their resources and territory against other predators. All of this means they have a strong influence on their surrounding area.
"In this research, we studied for the first time how big this impact is and the subtleties of it. What we found is that despite being predators, their presence can also lead to an increase in density and diversity of other animal groups. They genuinely play a key role in the local environment, having a big influence on the grassland food web."
The study, carried out in Germany, studied the impact of the presence of different combinations and densities of black garden ants (Lasius niger) and common red ants (Myrmica rubra), both species which can be found across Europe, including in the UK.
It found that a low density of ants in an area increased the diversity and density of other animals in the local area, particularly the density of herbivores and decomposers. At higher densities ants had no or the opposite effect, showing that predation is counteracting the positive influence.
Dr Frank van Veen, another author on the study, said: "What we find is that the impact of ants on soil nutrient levels has a positive effect on animal groups at low levels, but as the number of ants increases, their predatory impacts have the bigger effect – thereby counteracting the positive influence via ecosystem engineering."
More information: The full paper from the study, Ecosystem engineering and predation: the multi-trophic impact of two ant species, can be viewed online at: http://onlinelibra … 01796.x/full
Ecohydrology - New Academic Journal Library Recommendation - onlinelibrary.wiley.com/journal/eco
The study, published in the Journal of Animal Ecology, found that ants have two distinct effects on their local environment.
Firstly, through moving of soil by nest building activity and by collecting food they affect the level of nutrients in the soil. This can indirectly impact the local populations of many animal groups, from decomposers such as Collembola, to species much higher up the food chain.
Secondly, they prey on a wide range of other animals, including larger prey which can be attacked by vast numbers of ant workers.
Dirk Sanders, an author of the study from the university's Centre for Ecology and Conservation, said: "Ants are very effective predators which thrive in huge numbers. They're also very territorial and very aggressive, defending their resources and territory against other predators. All of this means they have a strong influence on their surrounding area.
"In this research, we studied for the first time how big this impact is and the subtleties of it. What we found is that despite being predators, their presence can also lead to an increase in density and diversity of other animal groups. They genuinely play a key role in the local environment, having a big influence on the grassland food web."
The study, carried out in Germany, studied the impact of the presence of different combinations and densities of black garden ants (Lasius niger) and common red ants (Myrmica rubra), both species which can be found across Europe, including in the UK.
It found that a low density of ants in an area increased the diversity and density of other animals in the local area, particularly the density of herbivores and decomposers. At higher densities ants had no or the opposite effect, showing that predation is counteracting the positive influence.
Dr Frank van Veen, another author on the study, said: "What we find is that the impact of ants on soil nutrient levels has a positive effect on animal groups at low levels, but as the number of ants increases, their predatory impacts have the bigger effect – thereby counteracting the positive influence via ecosystem engineering."
More information: The full paper from the study, Ecosystem engineering and predation: the multi-trophic impact of two ant species, can be viewed online at: http://onlinelibra … 01796.x/full
RLSS I - Rashtriya Life Saving Society India
The Rashtriya Life Saving Society (India) RLSS (I) is a national, non-profit, voluntary organization dedicated to helping people to learn modern lifesaving techniques. We are a leading provider of training in first aid, resuscitation, water safety, life saving and life guarding skills in India. The Society is a member of the International Life Saving Federation and branch of the Royal Life Saving Society (Commonwealth).
There are many ways you can become involved with the RLSS (I). This can range from learning new skills and qualifying as a first aider or lifesaver, getting a recognized qualification to be a trainer or making a donation to help us provide lifesaving information and training for young and old alike.
The desire to help is of little value unless it is accompanied by informed and keen action or first aid.It is headquartered at Pune. And it is situated all over India.
Further details:http://www.lifesavingindia.org
There are many ways you can become involved with the RLSS (I). This can range from learning new skills and qualifying as a first aider or lifesaver, getting a recognized qualification to be a trainer or making a donation to help us provide lifesaving information and training for young and old alike.
The desire to help is of little value unless it is accompanied by informed and keen action or first aid.It is headquartered at Pune. And it is situated all over India.
Further details:http://www.lifesavingindia.org
Friday, January 28, 2011
Guinness Book Record Of a hen which lived without head
Hi
Today i brought a new and amazing news. Its about a hen which lived about a 18 months without head and got into the Guinness Book Of Records.
The story goes this way the man who has been looking after the hen decided to make a yummy curry one day by killing the hen, and he cut its head but half of its brain and an ear was left. Waiting for it to die completely man has prepared all that is required for cooking but amazingly it continued living with that half brain and an ear. It lived with few drops of water as food. Really amazing isn't it!
Today i brought a new and amazing news. Its about a hen which lived about a 18 months without head and got into the Guinness Book Of Records.
The story goes this way the man who has been looking after the hen decided to make a yummy curry one day by killing the hen, and he cut its head but half of its brain and an ear was left. Waiting for it to die completely man has prepared all that is required for cooking but amazingly it continued living with that half brain and an ear. It lived with few drops of water as food. Really amazing isn't it!
Thursday, January 27, 2011
A clue for the treatment of Alzheimer's
London, Jan 27 (IANS) Scientists have identified a key chemical that boosts memory, potentially opening the way to newer treatments for Alzheimer's.
In a series of experiments, Mount Sinai School of Medicine researchers in the US showed that IGF-II plays a key role in memory.
The chemical is found in relatively high levels in the hippocampus, the brain's memory hub. However, levels decline with age, the journal Nature reports.
To find out how it affects memory, rats were given mild electric shocks when they entered the darker side of a box.
As the creatures prefer shaded spots, any reluctance to re-enter the area was linked with remembrance of painful consequences. So, the more the animal avoided the darkness, the better it was at remembering where not to go, according to the Daily Mail.
Tests showed that levels of IGF-II rose as the animals learnt to avoid the dark spot - and that giving them an injection of the substance boosted memory even further.
New memories were strengthened and were slower to break down. In other words, the creatures found it harder to forget.
Examination of the animals' brains reviled that IGF-II had strengthened the cellular connections and mechanisms underlying long-term memory.
Researcher Cristina Alberini of Mount Sinai School said: 'The implications of these data are far-reaching and give us new clues about how to investigate memory loss and forgetfulness in people with cognitive impairment, like those with Alzheimer's disease, stroke or dementia.'
Dutch researchers recently discovered that beta-blocker drugs used to treat heart disease may also help patients to banish bad memories.
In a series of experiments, Mount Sinai School of Medicine researchers in the US showed that IGF-II plays a key role in memory.
The chemical is found in relatively high levels in the hippocampus, the brain's memory hub. However, levels decline with age, the journal Nature reports.
To find out how it affects memory, rats were given mild electric shocks when they entered the darker side of a box.
As the creatures prefer shaded spots, any reluctance to re-enter the area was linked with remembrance of painful consequences. So, the more the animal avoided the darkness, the better it was at remembering where not to go, according to the Daily Mail.
Tests showed that levels of IGF-II rose as the animals learnt to avoid the dark spot - and that giving them an injection of the substance boosted memory even further.
New memories were strengthened and were slower to break down. In other words, the creatures found it harder to forget.
Examination of the animals' brains reviled that IGF-II had strengthened the cellular connections and mechanisms underlying long-term memory.
Researcher Cristina Alberini of Mount Sinai School said: 'The implications of these data are far-reaching and give us new clues about how to investigate memory loss and forgetfulness in people with cognitive impairment, like those with Alzheimer's disease, stroke or dementia.'
Dutch researchers recently discovered that beta-blocker drugs used to treat heart disease may also help patients to banish bad memories.
Yagna Foundation
Hi today i have read about a foundation named "YAGNA". It was founded by 12 medicos after their M.B.B.S. They are providing shelter and education for children who are orphans and financially backward. They are doing it with their own expenses. They have started a school at vikarabad with the help of sadananda reddy who gave his 2 acres land temporarily for building a school. I appreciate their work and dedication for the children. They are seeking for donors and a kind heart which can provide a land for them for the school. They also invite those who are willing to work with them to educate the children as teachers with sufficient pay.
For more details:http://www.yagnafoundation.org
For more details:http://www.yagnafoundation.org
Wednesday, January 26, 2011
Republic Day
This year Republic Day was welcomed with the murder of an additional collector.. India from a nation of prosperity and loyalty turned into a brutal society where the killing of a person is portrayed so easy.. Corruption and mafia is ruling our nation leaving a fear of survival for the common man..What are our future generations going to get from this way of developing India.. Lets think and act sensibly...
Subscribe to:
Posts (Atom)