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Thursday, August 4, 2011

Cuminum cyminum extract attenuates scopolamine-induced memory loss and stress-induced urinary biochemical changes in rats: a noninvasive biochemical a

Cuminum cyminum Linn. (Apiaceae), cumin, is a popular spice with a long history of medicinal use to treat various symptoms such as diarrhea, flatulence, gynecological, and respiratory diseases.
To date, no scientific investigation was reported regarding memory-enhancing and antistress activity of cumin fruits. The present study deals with the memory-enhancing and antistress activities and further the antioxidant status via lipid peroxidation inhibition.
Antistress activity was evaluated by inducing stress via forced swimming and the urinary vanillylmandelic acid (VMA) and ascorbic acid were estimated as biomarkers. Memory-enhancing activity was studied by conditioned avoidance response using Cook's pole climbing apparatus in normal and scopolamine-induced amnestic rats. Thiobarbituric acid reactive substances (TBARS) assay was used to evaluate the lipid peroxidation.

Daily administration of cumin at doses of 100, 200, and 300 mg/kg body weight 1 h prior to induction of stress inhibited the stress-induced urinary biochemical changes in a dose-dependent manner without altering the levels in normal control groups. The cognition, as determined by the acquisition, retention, and recovery in rats, was observed to be dose-dependent. The extract also produced significant lipid peroxidation inhibition in comparison with known antioxidant ascorbic acid in both rat liver and brain.
This study provides scientific support for the antistress, antioxidant, and memory-enhancing activities of cumin extract and substantiates that its traditional use as a culinary spice in foods is beneficial and scientific in combating stress and related disorders.
Cuminum cyminum Linn. (Apiaceae), cumin, is a popular spice with a long history of medicinal use to treat various symptoms such as diarrhea, flatulence, gynecological, and respiratory diseases.
To date, no scientific investigation was reported regarding memory-enhancing and antistress activity of cumin fruits. The present study deals with the memory-enhancing and antistress activities and further the antioxidant status via lipid peroxidation inhibition.
Antistress activity was evaluated by inducing stress via forced swimming and the urinary vanillylmandelic acid (VMA) and ascorbic acid were estimated as biomarkers. Memory-enhancing activity was studied by conditioned avoidance response using Cook's pole climbing apparatus in normal and scopolamine-induced amnestic rats. Thiobarbituric acid reactive substances (TBARS) assay was used to evaluate the lipid peroxidation.

Daily administration of cumin at doses of 100, 200, and 300 mg/kg body weight 1 h prior to induction of stress inhibited the stress-induced urinary biochemical changes in a dose-dependent manner without altering the levels in normal control groups. The cognition, as determined by the acquisition, retention, and recovery in rats, was observed to be dose-dependent. The extract also produced significant lipid peroxidation inhibition in comparison with known antioxidant ascorbic acid in both rat liver and brain.
This study provides scientific support for the antistress, antioxidant, and memory-enhancing activities of cumin extract and substantiates that its traditional use as a culinary spice in foods is beneficial and scientific in combating stress and related disorders.
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Winn's goal is to help "Every Cat, Every Day" and we can only do this with your assistance. Stay in touch with our activities and learn how you can become involved in the future of feline health.

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Winn's goal is to help "Every Cat, Every Day" and we can only do this with your assistance. Stay in touch with our activities and learn how you can become involved in the future of feline health.

Join over 3,800 other cat lovers on our Facebook page.

Follow us on Twitter and help spread the word!

Subscribe to our email newsletter - we promise, no spam :-)

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Wednesday, August 3, 2011

Give your brain a tea break

The four-year study adds to the literature on tea's long-touted virtues. Moreover, any type of tea will do just fine.

The main finding is that tea slows down brain-cell degeneration and thus keeps the mind sharp into old age, said Professor Ng Tze Pin from the National University of Singapore's (NUS) psychological medicine department.

It was found that catechins, a natural compound in tea, protect brain cells from damaging protein build-up over the years, maintaining the brain's cognitive capability.

Moreover, the caffeine in tea, unlike that in coffee, contains the natural protein theanine, which counters the normal side effects of caffeine such as raised blood pressure, headaches and tiredness.

Brain-cell degeneration, caused by a combination of loss of nerve cells, predisposed genes, small strokes and increased levels of harmful protein build-up, often leads to dementia.

There is still no cure for it. An estimated 24 million people worldwide have some form of dementia, an illness that affects memory, thinking ability and behaviour.

In Singapore, about 5 per cent of those above age 65 and 13 per cent of those above 70 suffer from dementia. About 7,000 new cases are diagnosed every year and the number is expected to rise to 187,000 by 2052.

The NUS team studied the tea-drinking habits of 2,501 Chinese aged 55 and above, from September 2003 to December 2005.

The team members were Prof Ng, Prof Kua Ee Heok, Dr Feng Lei and Dr Niti Mathew, as well as Dr Yap Keng Bee from Alexandra Hospital's geriatric medicine department.

Participants' health, attention span, language use and visual and spatial abilities were assessed. Their tea consumption - how often, how much and what type - was monitored.

About 38 per cent did not drink tea. About 29 per cent drank only one kind of tea. The rest, about 33 per cent, drank a mix of teas.

Two-thirds of the tea drinkers maintained their scores on the same memory tests two years later.

Among the non-tea drinkers, 35 per cent saw a dip in their memory test scores by an average of two points, which signifies cognitive decline.

Age, education, level of physical activity and other drinks were taken into account.

Tea was the distinguishing factor keeping brain cells energised.

Said Prof Ng: 'Tea is cheap, non toxic and widely consumed.'

But tea alone cannot do the job. 'It still means a lifetime of good habits and a balanced diet,' he said.
The four-year study adds to the literature on tea's long-touted virtues. Moreover, any type of tea will do just fine.

The main finding is that tea slows down brain-cell degeneration and thus keeps the mind sharp into old age, said Professor Ng Tze Pin from the National University of Singapore's (NUS) psychological medicine department.

It was found that catechins, a natural compound in tea, protect brain cells from damaging protein build-up over the years, maintaining the brain's cognitive capability.

Moreover, the caffeine in tea, unlike that in coffee, contains the natural protein theanine, which counters the normal side effects of caffeine such as raised blood pressure, headaches and tiredness.

Brain-cell degeneration, caused by a combination of loss of nerve cells, predisposed genes, small strokes and increased levels of harmful protein build-up, often leads to dementia.

There is still no cure for it. An estimated 24 million people worldwide have some form of dementia, an illness that affects memory, thinking ability and behaviour.

In Singapore, about 5 per cent of those above age 65 and 13 per cent of those above 70 suffer from dementia. About 7,000 new cases are diagnosed every year and the number is expected to rise to 187,000 by 2052.

The NUS team studied the tea-drinking habits of 2,501 Chinese aged 55 and above, from September 2003 to December 2005.

The team members were Prof Ng, Prof Kua Ee Heok, Dr Feng Lei and Dr Niti Mathew, as well as Dr Yap Keng Bee from Alexandra Hospital's geriatric medicine department.

Participants' health, attention span, language use and visual and spatial abilities were assessed. Their tea consumption - how often, how much and what type - was monitored.

About 38 per cent did not drink tea. About 29 per cent drank only one kind of tea. The rest, about 33 per cent, drank a mix of teas.

Two-thirds of the tea drinkers maintained their scores on the same memory tests two years later.

Among the non-tea drinkers, 35 per cent saw a dip in their memory test scores by an average of two points, which signifies cognitive decline.

Age, education, level of physical activity and other drinks were taken into account.

Tea was the distinguishing factor keeping brain cells energised.

Said Prof Ng: 'Tea is cheap, non toxic and widely consumed.'

But tea alone cannot do the job. 'It still means a lifetime of good habits and a balanced diet,' he said.
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Monday, August 1, 2011

Ancient Moves for Orthopedic Problems

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Low vitamin D impairs strength recovery after knee surgery

This weekend, scientists from an American medical institution published a study that has practical implications for patients undergoing ACL (Anterior Cruciate Ligament) surgery.

The study, by a group in Utah, may have answered in part the long sought question of why some patients do well after knee surgery (quickly regain strength in their quadriceps) and some do not. Dr. Tyler Barker, of the Orthopedic Specialty Hospital in Murray, Utah, and his colleagues at the University of Utah (where I did a surgical internship back in 1976) discovered that vitamin D levels are associated with muscle strength recovery after knee surgery (anterior cruciate repair). Those with levels above 30 ng/ml recovered much better than those with levels below 30 ng/ml.

Tyler Barker, Thomas B. Martins, Harry R. Hill, Carl R. Kjeldsberg, Roy H. Trawick, Lindell K. Weaver, and Maret G. Traber Journal of Evidence-Based Complementary & Alternative Medicine. published 29 July 2011, 10.1177/2156587211413768
I found it somewhat disappointing that the authors refused to say that vitamin D deficiency should be treated before knee surgery. All they would say was that Americans should fund more studies before any action is taken. Of course this is neither practical or ethical, as physicians are (and always have been) obligated to act on what is known now -- not on what may or may not be discovered in the future. Randomized trials of vitamin D supplemention need to be undertaken to discover what the optimum vitamin D level for knee surgery is. But such trials will take years, while orthopedists need to act, or not, now.

-John J. Cannell, M.D.
This weekend, scientists from an American medical institution published a study that has practical implications for patients undergoing ACL (Anterior Cruciate Ligament) surgery.

The study, by a group in Utah, may have answered in part the long sought question of why some patients do well after knee surgery (quickly regain strength in their quadriceps) and some do not. Dr. Tyler Barker, of the Orthopedic Specialty Hospital in Murray, Utah, and his colleagues at the University of Utah (where I did a surgical internship back in 1976) discovered that vitamin D levels are associated with muscle strength recovery after knee surgery (anterior cruciate repair). Those with levels above 30 ng/ml recovered much better than those with levels below 30 ng/ml.

Tyler Barker, Thomas B. Martins, Harry R. Hill, Carl R. Kjeldsberg, Roy H. Trawick, Lindell K. Weaver, and Maret G. Traber Journal of Evidence-Based Complementary & Alternative Medicine. published 29 July 2011, 10.1177/2156587211413768
I found it somewhat disappointing that the authors refused to say that vitamin D deficiency should be treated before knee surgery. All they would say was that Americans should fund more studies before any action is taken. Of course this is neither practical or ethical, as physicians are (and always have been) obligated to act on what is known now -- not on what may or may not be discovered in the future. Randomized trials of vitamin D supplemention need to be undertaken to discover what the optimum vitamin D level for knee surgery is. But such trials will take years, while orthopedists need to act, or not, now.

-John J. Cannell, M.D.
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2011 Winn/AVMF Veterinary Scholarship Awarded


(Hillsborough, NJ, Aug. 1, 2011)  Winn Feline Foundation and the American Veterinary Medical Foundation (AVMF) join together annually to present two awards designed to promote and encourage feline health studies by both established veterinary research scientists and by those entering this field of study. The “Winnie” and $2500 cash are awarded to a distinguished researcher in feline medicine selected by the AVMF, and a matching cash award from the AVMF is selected by Winn from a large group of student applicants.

Dr. Jessica Balter

The scholarship award this year goes to a newly minted DVM from the Cornell University School of Veterinary Medicine, Jessica Balter. Dr. Balter was president of the student chapter of the American Association of Feline Practitioners (AAFP) and coordinated numerous events to educate veterinary students and the community on important aspects of feline medicine. She has been active in trap-neuter-return programs and feral colony care, demonstrating a devotion to the needs of felines in the shelter setting and rescue operations. Her interest in cats dates back to her high school days, when she fostered kittens and worked for her local shelter.  Dr. Balter says, “I hope to build a strong foundation of medical knowledge which I can use to guide me through the unique aspects of shelter medicine while simultaneously advancing the treatment of shelter animals….”   Having lived with many rescued felines, Dr. Balter has gained a deep appreciation of the behavioral needs of cats and a keen appreciation of the need for specialists dedicated to feline medicine. Dr. Balter will be completing a year-long, small animal rotating internship at Brightheart Veterinary Referral and Emergency Center, a specialty hospital on Long Island, NY.   

Winn Feline Foundation and the American Veterinary Medical Foundation are pleased to be associated together in this effort to focus attention on care for “Every Cat, Every Day.”  

(Hillsborough, NJ, Aug. 1, 2011)  Winn Feline Foundation and the American Veterinary Medical Foundation (AVMF) join together annually to present two awards designed to promote and encourage feline health studies by both established veterinary research scientists and by those entering this field of study. The “Winnie” and $2500 cash are awarded to a distinguished researcher in feline medicine selected by the AVMF, and a matching cash award from the AVMF is selected by Winn from a large group of student applicants.

Dr. Jessica Balter

The scholarship award this year goes to a newly minted DVM from the Cornell University School of Veterinary Medicine, Jessica Balter. Dr. Balter was president of the student chapter of the American Association of Feline Practitioners (AAFP) and coordinated numerous events to educate veterinary students and the community on important aspects of feline medicine. She has been active in trap-neuter-return programs and feral colony care, demonstrating a devotion to the needs of felines in the shelter setting and rescue operations. Her interest in cats dates back to her high school days, when she fostered kittens and worked for her local shelter.  Dr. Balter says, “I hope to build a strong foundation of medical knowledge which I can use to guide me through the unique aspects of shelter medicine while simultaneously advancing the treatment of shelter animals….”   Having lived with many rescued felines, Dr. Balter has gained a deep appreciation of the behavioral needs of cats and a keen appreciation of the need for specialists dedicated to feline medicine. Dr. Balter will be completing a year-long, small animal rotating internship at Brightheart Veterinary Referral and Emergency Center, a specialty hospital on Long Island, NY.   

Winn Feline Foundation and the American Veterinary Medical Foundation are pleased to be associated together in this effort to focus attention on care for “Every Cat, Every Day.”  
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