11th Nov 2015, 02:28 PM #2221
Re: Health Bulletin
காலணி அணியாவிட்டால் கால்களை இழக்க நேரிடும்:சர்க்கரை நோய் நிபுணர்கள் எச்சரிக்கை
தென்னிந்தியாவில் காலணி பயன்படுத்தாதவர்கள் எண்ணிக்கை அதிகம் காணப்படுகிறது. இதனால் சர்க்கரை நோயாளிகள் பலர் தங்கள் கால்கள், விரல்களை இழக்கின்றனர் என சர்க்கரை நோய் நிபுணர்கள் தெரிவித்தார்.
இதுகுறித்து, பெல்ஜியம் நாட்டைச் சேர்ந்த சர்க்கரை நோயாளிகள் பாதங்களைப் பாதுகாக்கும் சர்வதேச அமைப்பைச் சேர்ந்த மருத்துவர் கிறிஸ்டியன், எம்.வி.சர்க்கரை நோய் மருத்துவமனையின் தலைவர் விஜய் விஸ்வநாதன் ஆகியோர் சென்னையில் செய்தியாளர்களிடம் சனிக்கிழமை கூறியது:
பாதங்களைச் சரியாக பராமரிக்காத, சரியான காலணிகளை அணியாதவர்களுக்கு கால்களில் புண்கள் ஏற்பட்டு கால் அல்லது கால் விரல்களை நீக்கும் நிலை ஏற்படுகிறது.
வட இந்தியாவைக் காட்டிலும் தென்னிந்தியாவில் அதிகமானோர் கால்களுக்கு காலணிகளை அணிவதில்லை. இதனால் தென்னிந்தியாவில் உள்ள சர்க்கரை நோயாளிகள் தங்கள் உடல் உறுப்புகளை இழக்கின்றனர்.
சர்க்கரை நோயாளிகளுக்கான சிறப்பு காலணிகள் அமெரிக்கா, ஐரோப்பா நாடுகளில் அங்கேயே தயாரிக்கப்பட்டு மிகவும் குறைந்த விலையில் கிடைக்கின்றன. ஆனால் இந்தியா, சீனா, ஆப்பிரிக்கா போன்ற நாடுகளைச் சேர்ந்தோருக்கு குறைந்த செலவில் சர்க்கரை நோயாளிகளுக்கான பிரத்யேக காலணிகள் கிடைப்பதில்லை.
இந்தியாவில் சர்க்கரை நோயால் உடல் உறுப்புகளை இழக்கும் நோயாளிகளின் எண்ணிக்கை குறித்த பதிவு இல்லை. எனவே இந்திய சர்க்கரை நோயாளிகளின் பாத ஆராய்ச்சி என்ற அமைப்பு தொடங்கப்பட்டு, புள்ளி விவரங்களைச் சேகரிக்கும் முயற்சிகள் நடைபெறுகிறது என்றனர்.
11th Nov 2015, 02:29 PM #2222
Re: Health Bulletin
ஆண், பெண்களுக்கு வித்தியாசமான மூளை அமைப்பு!
ஆண், பெண்களின் மூளை அமைப்பு, பிணைக்கப்பட்டிருக்கும் விதத்தில் மாறுபடுகின்றன என தற்போதைய ஆய்வில் தெரிய வந்துள்ளது. ஆண்களுக்கு மேலிருந்து கீழாகவும்,பெண்களுக்கு வலமிருந்து இடமாகவும் பிணைப்புகள் உள்ளன. இதனால் மூளை வேலை செய்யும் விதம் மாறுபடுகிறது. மூளை குறைபாடுகள், நரம்பியல் கோளாறுகள் ஏற்படும்அபாயமும், ஆணுக்குப் பெண் வேறுபடுகிறது.
அமெரிக்காவின் பென்சில்வேனியா பல்கலைக்கழக மருத்துவ ஆராய்ச்சிமாணவர்களால், 949 வளர் இளம் பருவ மற்றும் இளம்வயதினரிடம் இந்த ஆய்வு மேற்கொள்ளப்பட்டது. 8 முதல் 22 வயதுள்ள 521 பெண்களும், 428 ஆண்களும் ஆய்வுக்கு உட்படுத்தப்பட்டனர். பெண்களின் மூளை அமைப்பு காரணமாக இயல்பாகவே அவர்களுக்கு கூர்மையான அறிவாற்றல், கவனம், ஞாபக சக்தி அதிகமாக இருக்கும். இதனால் நுணுக்கமான பணிகளை பொறுமையாக செய்யும் ஆற்றல் பெண்களுக்கு உண்டு. ஆண்களின் மூளை அமைப்பின்படி, உணர்திறன், கையாளும் விதம், இயந்திர அறிவு ஆகியவை இயல்பாகவே அமைகின்றன. இதன் காரணமாக ஆண்கள் கடினமான வேலைகளையும், புதிய விளையாட்டையும் எளிதில் கற்றுக் கொள்வர்.
ஆட்டிஸம் போன்ற மூளை, நரம்பியல் கோளாறுகள்ஆண்களை விட பெண்களுக்கே அதிகம் ஏற்பட வாய்ப்புள்ளதாகவும் தெரிகிறது. பாலின மூளை அமைப்பு வித்தியாசம் காரணமாக,ஆண், பெண்களுக்கு ஏற்படும் நரம்பியல் கோளாறுகளுக்கு, அளிக்கப்படும் சிகிச்சையும்மாற்றப்பட வேண்டும் என இந்த ஆய்வில் தெரிய வந்துள்ளது.
12th Nov 2015, 01:09 PM #2223
Re: Health Bulletin
Emotional bonding may lower male testosterone'
Not just your wife, emotional relationships with siblings, friends, neighbours and co-workers can also result in lower testosterone levels as you age, researchers including an Indian-origin scientist report.
It has long been known that among humans (and some other species as well), males who cooperate amicably with their female mates in raising and nurturing offspring often have lower testosterone levels than their more aggressive and occasionally grumpy counterparts.
Now, according to two anthropologists from University of Notre Dame in Indiana, not just spouse but other relatives, good friends, colleagues and neighbours can also play a role.
"Compared to other men, fathers and married men often have lower testosterone. We think this helps them be more nurturing. We are the first to show that this also occurs with other social relationships," suggested Lee T.
Gettler, assistant professor of anthropology.
We know that men and women with social support have much better health, overall, while testosterone affects risks for depression, cardiovascular disease, obesity and some cancers.
Most of us have probably seen the TV commercials promoting testosterone as a remedy for symptoms of ageing or "manopause".
"Our findings suggest that the social side effects of these testosterone supplements in older men should be carefully studied," added Rahul C. Oka, assistant professor of anthro pology. While testosterone does go down with age, the potential social benefits that can accompany lower testosterone suggest it is not all doom and gloom.
"We hope our findings, connecting these two areas, help stimulate new conversations about social support, biology and well-being," the authors noted.
The paper is expected to be published in the journal Hormones and Behavior.
12th Nov 2015, 01:11 PM #2224
Re: Health Bulletin
'Continuous pumping during CPR not a good idea'
Continuous chest compressions during cardio-pulmonary resuscitation (CPR) by emergency medical responders do not offer survival advantages when compared to interrupting manual chest pumping to perform rescue breathing, says a study.
CPR is the effort to restore a pulse and respiration in people whose heartbeat and breathing have sudden ly ceased.
The study found that patients with out-of-hospital cardiac arrest who received continuous compressions were less likely to survive long enough to be transported or admitted to a hospital.
They also had fewer days alive and out of hospital during the first month after their cardiac arrest.
"Both groups did well.But it appears that patients treated by EMS providers who interrupted chest compressions to deliver rescue breathing appear to survive a bit more often," said project leader Graham Nichol from University of Washington.
"The results of this study may well change emergency medical services CPR practice," he added.
The study appeared in the New England Journal K of Medicine.
13th Nov 2015, 06:15 PM #2225
Re: Health Bulletin
Loneliness makes your brain work differently, study shows
From the 95-year-old couple who called 999 because they wanted someone to talk to, to the John Lewis Christmas advert which is taking the nation by storm for its touching relationship between an old man and a little girl, the issue of loneliness has never been more prominent.
In recent weeks we've also heard about the pensioner who rang a local BBC radio station to tell them he missed his wife, and have received sobering statistics from charity Age UK who say a million elderly people often go a whole month without speaking to anyone.
And now researchers have shown being lonely can actually have a physical impact on your brain.
The study, published in the journal Cortex, was led by married researchers Stephanie and John Cacioppo, from the University of Chicago, who are experts on the psychology and neuroscience of loneliness.
They found that lonely people's brains differ from those of non-lonely people, Medical Daily reported.
In fact, lonely people are actually more alert to threats and the possible danger of strangers, because their brains become more active in social situations.
Psychology Today reported that when we feel socially isolated our nervous systems automatically switch into 'self-preservation mode', which makes us more abrasive and defensive - even if there's actually no threat.
The researchers found this out by distributing a 'loneliness questionnaire' to 38 'very lonely' people and 32 people who 'didn't feel lonely'.
They defined feeling lonely as a subjective feeling of isolation, rather than number of friends or close relatives.
They used electrodes on subjects' heads to record brain waves, and also conducted a Stroop Test using words such as "belong", "party," "alone", "solitary", "joy" and "sad" - which were tagged as either 'social/positive', 'social/negative', 'nonsocial/positive' and 'nonsocial/negative' to see the different ways they responded.
They found lonely people became highly vigilant when the words were regarded as 'socially negative', whereas non-lonely people responded in similar ways to both social and nonsocial negative words.
In conclusion, they surmised that lonely people's brains are conditioned to tune into social threats faster than what is considered 'normal'.
And this hyper-vigilance to respond to social threats could be rooted in the subconscious.
"Our evolutionary model of the effects of perceived social isolation (loneliness) on the brain as well as a growing body of behavioral research suggests that loneliness promotes short-term self-preservation, including an increased implicit vigilance for social, in contrast to nonsocial, threats," they wrote in the study.
They also found that even though the test was designed to be fast and reactive, to give subjects little time to think about their answers, lonely people picked out socially threatening words like "hostile" and negative nonsocial words like "vomit" more quickly too.
And they said that this suggests lonely people are subconsciously looking out for negativity.
13th Nov 2015, 06:15 PM #2226
Re: Health Bulletin
New blood cancer drug clears first clinical trial
A new blood cancer drug that targets a protein essential for growth of tumour cells has been found to be effective in patients resistant to current chemotherapies, a worldfirst clinical trial has shown.
In the first-in-human study, researchers from UK looked at the efficacy of a new inhibitor, ONO/GS-4059, in the treatment of chronic lymphocytic leukemia and non-hodgkin lymphoma patients resistant to current chemotherapies. ONO/GS-4059 targets BTK, a protein essential for the survival and proliferation of tumour cells.
For the study 90 patients were enrolled. Patients with chronic lymphocytic leukemia showed the best response and most of them are still on the study after 3 years, and remarkably without notable toxicities. "These patients were confronted with a cruel reality - they had failed multiple chemotherapy lines and there were no other treatment options available for them," said professor Harriet Walter.
"The development of targeted therapies that increase the chance of therapeutic success and at the same time avoid toxicities generally observed in chemotherapies, is the most exciting progress in cancer research," said professor Martin Dyer.
13th Nov 2015, 06:16 PM #2227
Re: Health Bulletin
Fat stigma making us miserable, say experts
Being overweight doesn't necessarily make a person distraught, researchers are learning. Rather, it's the teasing, judgment and unsolicited advice directed at overweight people that can cause the greatest psychological harm.
"People assume there is a direct relationship between how much people weigh and their psychological health," said Jeffrey Hunger, a doctoral candidate in social psychology at the University of California. Hunger and his team found that those who were obese were more likely to report problems like depression, anxiety, substance abuse and low self-esteem if they had experienced weight-based discrimination in the past. It could also lead to self-sabotaging behaviors like avoiding the gym or doctor's office in order to protect against future stigmatisation.
Stigma from doctors is part of a larger cultural bias against the overweight that is amplified by the mass media, from reality television to advertisements to health magazines, said Courtney Bailey, amedia scholar in popular culture and an associate professor. "It's done under the context of health, which makes it harder to critique," she said. Bailey says that fat stigma intensified after 9/11, when Americans' sense of vulnerability translated into increased animosity toward the fat body. "Culturally fat bodies signify moral weakness, incompetence, the list goes on. Those are also things that threaten national security," she said.
Negative stereotypes of fat people are reinforced in entertainment media, from children's shows to reality television, said Sarah Domoff, a research fellow in clinical psychology at the University of Michigan.
In one study, Dr. Domoff exposed undergraduate students to shows like "The Biggest Loser," in which weight loss occurs rapidly and within a punishing context. She found that study participants who weren't trying to lose weight expressed greater disdain of obese people than those who were. Many also expressed a stronger belief that weight is controllable and that a person who fails to lose weight is not trying hard enough.
"We're seeing a lot of responsibility put on the person themselves," said Dr. Domoff, a notion that perpetuates stigma against the overweight and obese by assuming people who fail to lose weight are at fault.
Fat stigma can have consequences on the body as well. This year a study confirmed how weightbased discrimination can increase levels of the hormone cortisol, a marker of stress.
13th Nov 2015, 11:45 PM #2228
Re: Health Bulletin
Women prefer smart but shy men as sperm donors
Women are more likely to select men who are intellectual, shy, calm and methodical as sperm donors than those who are extroverted, a new study into how women choose sperm donors online has found.
Worldwide demand for sperm donors is so great that an informal online market has emerged in which offspring are being produced outside of the more formal fertility clinic setting, said Stephen Whyte from the Queensland University of Technology (QUT).
"You would expect in an online setting, men would have to sell or promote themselves to women, and extroverted men should be better at doing that. But what we find is actually the opposite," said Whyte.
In what is believed to be the first study to include males who are donating purely through unregulated websites and forums, researchers interviewed and collected data from 56 men.
"This online donor market works quite differently to fertility clinics in that it facilitates more interaction between the recipient and the donor," said Whyte.
"This allows us to explore individual donor personality characteristics and how likely they are to be chosen by women as their donor," he said.
Women were far less likely to choose the sperm of fretful or socially awkward men but at the same time those with lively, extroverted personalities were also less successful in being chosen, researchers said.
The participants for the study were aged between 23 and 66 and were from Australia, Canada, the UK, Italy, Sweden and the US. Data was collected across 2012 and 2013 via online surveys of regulated (paid), semi-regulated and unregulated (free) online sperm donation forums and websites.
"Research has previously shown humans are good at judging personality traits as well as levels of intelligence with only minimal exposure to appearance and behaviours, and our findings certainly seem to support that," said Whyte, who carried the study with Professor Benno Torgler from QUT's Queensland Behavioural Economics Group.
"We also found that 73 per cent of our participants who had children by donation kept in touch via mail, email, phone, video link or even in person with at least one of their donor children," he said.
14th Nov 2015, 02:15 PM #2229
Re: Health Bulletin
Chennai doctors perform combined heart and liver transplant
After struggling for eight years with breathlessness and bouts of jaundice, 30-year-old Ponnar now has a new heart and a new liver.
In a complex operation, doctors at a hospital in Chennai transplanted the heart and the liver of a brain dead donor in the patient. What makes this surgery significant is that the doctors transplanted the organs together, with both of them connected to each other.
Ponnar, who hails from Tiruchengode in Namakkal district, was brought to Apollo Hospitals March with symptoms of liver and heart failure caused by high pressure in a vein connecting the heart to the liver. It took six months to find an appropriate donor liver-heart match.
An exceptional student who completed his masters in engineering and a gold medallist, Ponnar, at 22 years of age, started noticing swelling in his abdomen, shortness of breath and found that he was turning yellow.
This was diagnosed as cirrhosis of the liver, leading to liver failure. He was advised a liver transplant, which his family was ready to get done for the young man. "However, when he presented himself for liver transplant, it was discovered that Ponnar had a congenital condition called Ebstein's anomaly - a failure of the right side of the heart to develop properly, which was the cause of the liver failure," said Dr Paul Ramesh, consultant cardiothoracic surgeon, Apollo Hospitals.
This left Ponnar with just one option - a combined heart and liver transplant. The procedure involved surgery of the thoracic cavity (for the heart) as well as the abdominal cavity (for the liver), making it a highly risky.
"With the heart not functioning in an efficient manner, there was high pressure on the liver, causing destruction of the liver cells leading to jaundice and cirrhosis," said Dr Ramesh.
In addition, the transplant team had to take into consideration the risk of excessive bleeding because of simultaneous transplant. "On the other hand, separately transplanting both the organs was also highly risky as toxins would accumulate in liver, which, in turn would attack the heart," he said.
Ponnar waited from April 2015 to October 2015 till a suitable donor was found. He underwent the combined heart and liver transplant on October 14 and was discharged within a week after the surgery.
15th Nov 2015, 08:38 PM #2230
Re: Health Bulletin
Oncologists in Bengaluru worry about Angelina effect
When Hollywood actress Angelina Jolie went for genetic testing in 2013 for cancer, it created a panic among women across the world. The Angelina Jolie effect led to many women seeking genetic testing to know if they fall under high risk group, but that's not necessary, said Dr Bhawna Sirohi, HOD, medical oncology , Mazumdar Shaw Cancer Centre, on Saturday.
Speaking to STOI on the sidelines of the second edition of Brinker Awardee breast cancer symposium, Dr Sirohi said the need of the hour is clinical examination if any sign of cancer is seen during physical tests.
Genetic testing is done to determine whether women with a family history of of specific cancer carry mutation of specific genes, which significantly increases risk of breast cancer. But cancer due to hereditary or mutation of genes is responsible for less than 5% of all breast cancer cases, said Dr Sirohi.
On the need for self examination, Dr Sirohi said women even in urban areas lack awareness and over 80% of women approach doctors only when the cancer is in second or third stage. "Early detection helps in treating a patient," she said. She blamed the short maternity leaves and poor breast feeding habits among urban working women as triggering factors of breast cancer.
Referring to a recent report she said incidences of cancer has been increasing in Bengaluru. "If there are two breast cancer cases per one lakh women in Barshi, a region in Maharashtra, the incidence in Bengaluru is high as 37 cases," she said.
Angelina Jolie effect is turning out to be a stigma against cancer care in marriages, said oncologists. Dr Paul C Salons, vice president of Mazumdar Shaw Cancer Centre, said said, "Cancer is a noncommunicable disease. The incidence of cancer passing on as hereditary is rare. But still we get people asking us, if it's safe to marry a girl whose distant relative suffered from cancer."
Dr Eric P Winer, chief of division of women's cancer, Harvard Medical School, said, "The number of ovarian cancer risk patients is equal to the number of women who died due to ovarian cancer."
Dramatic shift expected in 10 years: Dr Shetty
Dr Devi Shetty, chairman, Narayana Health, said the cost of many medical equipment would come down in the next 10 years with the onset of online healthcare system. Speaking at the symposium on cost effectiveness in healthcare, Dr Shetty said, "Within 10 years, everything will change drastically. Treatment will be through online. If I don't need to touch a patient, I don't need to see him/her too. This leads to equipment cost coming down. Smart doctors will