Friday, February 29, 2008

NRIs more prone to lifestyle ills


February 29, 2008
By Syed Akbar
Hyderabad, Feb 28: Indians living in the USA are prone to more number of diseases linked to diet and environment than other people living there, says a research study.
Senior researchers Pragna I Patel, Niyati U Mehta and others, who conducted the study involving scores of Asian Indians living in the US, found that "Asian Indians display a high prevalence of diseases linked to changes in diet and environment that have arisen as their lifestyle has become more westernised".
The study associated Indians with a high prevalence rate of diseases like atherosclerosis (narrowing of blood vessels), hypertension, diabetes, prostate cancer, Hirschsprung disease (enlargement of colon) and age-related macular (cornea) degeneration. As Indians are becoming more westernised both in diet and lifestyle, the prevalence of diseases associated with these lifestyle changes is increasing.
The researchers used 1200 genome-wide polymorphism in more than 400 individuals from 15 Indian language groups and compared their data with those of other populations living in America. The non-Indian populations studied for comparison were from Africa, Asia (including Central, Southern, Eastern, and South-East Asian populations), Americas (native populations of South and Central America, and native
populations of North America), Europe (including non-native European American populations, and Russia), Oceania (Australia, New Zealand, and the Pacific islands).
They also found that Indians constitute a distinct population-genetic cluster, and despite the geographic and linguistic diversity of the groups they exhibit a relatively low level of genetic heterogeneity.
The analysis of the data revealed that allele frequency differences between the different Indian language groups were small, and interestingly the variant alleles were present only in a subset of the Indian language groups.
"Our results also support the inclusion of the Indian population in disease-related genetic studies, as it exhibits unique genotype as well as phenotype characteristics that may yield new insights into the underlying causes of common diseases that are not available in other populations," they said.
Metabolic disorders have been found to have a disproportionately high prevalence in the Indian population, a phenomenon which is likely associated with the increasing westernisation of Indian. Prevalence of coronary artery disease in individuals of Indian origin is currently much higher than in other ethnic groups and is even increasing.
It is estimated that 18 per cent of the Indian population suffer from hypertension, one of the major risk factors associated with CAD, and that the prevalence of hypertension is also increasing within this population.
They said Type-2 diabetes is now reaching epidemic proportions among Indians, most prominently in urban Indians where there has been a very steep increase in prevalence over the last decade from 8.3 per cent in 1992 to around 17 per cent now. Other diseases are also found at varying frequencies in Indian population including
Hirschsprung disease, age-related macular degeneration, prostate cancer, and type-1 diabetes.
The frequencies of variants associated prostate cancer were similar to those of African populations. However, none showed a high similarity to the populations of Eastern Asia. This could reflect a greater degree of non-Asian compared to Asian gene flow into India during the course of its history.
One possible explanation for the differences between the trends in the Indian groups and other world populations could be the differential migration of non-Indian individuals into different parts of India during the course of its history.
"There could also be selective pressures that are unique to, more important in, or different in action in, India than the other world populations, and that also share a strong correlation with latitude," they observed.
The Asian Indian population represents a large population within which many complex-trait disorders are found at a high frequency. In some cases, such as coronary artery disease, Indians exhibit unique phenotypic characteristics that distinguish them from the other populations, suggesting that unique causative factors underlie this and possibly other related diseases.

Wednesday, February 27, 2008

Hyderabad: Travel down memory lane in the city of deodis


February 27, 2008
By Syed Akbar
Hyderabad is a city where the past lives in the present. The old structures that once dotted the city have given way to modern buildings. But Hyderabadis have not forgotten the glorious past of their city. The charm and grandeur that's associated with the old and imposing structures of Hyderabad continues to linger in the memory of Hyderabadis, old and young alike.
Hyderabad, being the city of Nawabs and nobles, had sprawling palaces architecturally perfected to the last detail. The palaces were called deoris or deodis. The city once had hundreds of such palaces. Today only a handful of them remain, giving a peep into the past.
Author Rani Sarma brings to light little known facts about the glorious deodis of yore. The Irram Manzil Palace had altogether 900 odd servants, who lived in "wadas" behind the palace. Behind the deodis lived the hordes of servants, who worked in them. Clerks, office superintendents and the other staff lived in quarters, within easy reach of the deodi.
The cooks,drivers, farrashes, ayahs, maalis, polishers, security guards and numerous other retainers lived in huge villages either close to the deodi or sometimes in the grounds of the deodi itself. There was a marked difference between the mansions they served in and their own humble dwellings, says Rani Sarma, who recently authored, The Deodis of Hyderabad - a lost heritage.
She takes readers of her book on a journey of the Nawabdom, where art and architecture flourished and communal harmony was at its zenith. Some 1200 deodis once existed in the old city of Hyderabad. Almost all of these traditional homes have been demolished in recent years, leaving little trace of a now vanished lifestyle.
"The vibrant new phase of development is commercially driven. It has swept aside most traces of the old. Today the city of Hyderabad bristles with evidence of the latest wave of wealth. But a stranger to the city would be hard put to find traces of the city's past, its former premier residences of stateliness and splendour," says Prince Muffakham Jah. Rani Sarma's book is the latest addition to the treasure-trove of publications on old Hyderabad.
Muffakham Jah, who has been witness to the transformation of the city for over five decades, further observes, "it is these deoris that the Hyderabadi culture evolved Hyderabadi "Tehzeeb," its refined way of life."
Agreeing with Muffakham Jah, Rani Sarma writes, "be it the language, literature, music, dance, etiquette, courtesy, entertainment, cuisine or dress, they were all important and tradition dictated the norms. Transgressions were frowned upon and social standing and acceptability depended on the degree of refinement that the individuals acquired. Special care was taken to teach children the finer points of
etiquette right from their childhood."
The landscape of Hyderabad changed with the entry of the Britishers. The second half of the 19th century was a period of change in Hyderabad, writes Rani Sarma. Englishness came to influence the architecture, lifestyle, education, spoken language, and eating habits of the upper echelons of society.
The British Residency was a built by 1806 and it became fashion to build modern palaces modelled after it. Even the nomenclature of the buildings that they built changed from a "deodi" to a "palace". We have the old-style deodi of the Malwalas being called Malwala Palace.
The writer vividly brings out the communal harmony that co-existed along with deodis. "It is often said that in Hyderabad, the people enjoyed a composite culture. `Ganga-Jamuni' is one word Hyderabadis are fond of using, indicating that Hyderabadi culture was a blend of Hindu and Muslim cultures. One was a Hyderabadi, and that was all that mattered, whether one was a Hindu or a Muslim did not matter."
The three outstanding features of the deodis, as seen in Hyderabad, were their prominent main entrances, high enclosing walls and inner courtyards. Each deodi had its own rhythm of life and activity, its tone set by the master of the house.
The forecourt of the deodi was strictly meant for performing official functions of the lord. The large jagirdars like the Paigahs and the Diwans not only maintained troops but also took care of the civil and judicial administration in their jagirs. They employed a large staff that operated from the peshi of the deodi.

Tuesday, February 26, 2008

Icrisat germplasm at Svalbard Global Seed Vault


February 2008
By Syed Akbar
Hyderabad, Feb 25: The International Crops Research Institute for the Semi-Arid Tropics has joined the group of international organisations that will deposit seeds of germplasm of mandate crops at the Svalbard Global Seed Vault, to be inaugurated on Tuesday.
According to Dr William Dar, director-general of ICRISAT, the international initiative is to store the seeds of agricultural crops from across the world in a specially created seed vault. The Svalbard archipelago is half way between the northern coast of Norway and the North Pole.
Located in a remote, yet accessible location within a mountain under permafrost (permanently frozen layer) conditions, the Svalbard Seed Vault has a natural temperature of minus 6 degree centigrade. The vault is further cooled to minus 18°C and is designed to provide ultimate secure protection against catastrophes to plant genetic resources for food and agriculture.
Dr William Dar said ICRISAT's participation in the duplicate conservation of seeds in the vault would add a special significance to the project by giving increased protection to global agriculture from climate change.
The seeds of germplasm that will be transferred by ICRISAT are those of hardy dryland crops that can withstand climate change when it happens. These are the seeds of sorghum, pearl millet, chickpea, pigeon pea,groundnut and six small millets.
Though a global disaster may or may not happen, seeds stored in gene banks are routinely used to re-start agriculture in areas affected by natural disasters and civil strife. For instance, sorghum germplasm lost during civil wars in Ethiopia and Rwanda was replenished from the collection stored in the ICRISAT gene bank.
ICRISAT repatriated germplasm to several countries: Botswana (sorghum), Iran (chickpea), Nepal (chickpea), Kenya (pigeon pea), Sudan (sorghum), Zambia (sorghum, pearl millet, pigeon pea, groundnut and finger millet), and India (all crops).
ICRISAT will deposit seeds of 20,000 germplasm accessions in the first instalment this year, which will be the first year of the 5-year schedule during which the Institute will transfer about 110,000 germplasm accessions.
ICRISAT holds 1,18,882 accessions of various crops, along with their wild relatives, representing 144 countries.

Monday, February 25, 2008

Sentinel Surveillance Report: HIV spreads to children below 14 years in Andhra Pradesh

February 25, 2005
By Syed Akbar
Hyderabad, Feb 24: Even as the State is battling to control HIV which is assuming monstrous proportions, the infection has spread to new population groups affecting children below 14 years of age.
According to the latest Sentinel Surveillance Report of the Andhra Pradesh State AIDS Control Society, about four per cent of all HIV positive cases are children below 14 years. Officials are surprised at the spread of HIV in small children as Andhra Pradesh is primarily a "heterosexual State" where 90 per cent of the HIV/AIDS cases are through heterosexual transmission and just 0.46 per cent cases are through gay relationships. They believe that the streetchildren factor might have contributed to the high incidence of HIV in small children along with mother-to-child transmission route.
What is horrifying is that the State has fast moved from the "high risk groups" phase to "bridge population and vulnerable groups" phase. The State no more has any identifiable high risk groups like truckers and prostitutes. The infection has become quite common and everyone irrespective of social background in the State is at risk.
"We have five lakh HIV cases in the State and of this four per cent are children below 14 years of age. It is affecting women and children, both vulnerable groups, adversely. We do not have data on the exact cause of spread of HIV to this group of population. We cannot say for sure that HIV in small children is through sexual contact. There is no provision in law for a random survey on HIV/AIDS and hence we depend on the cases visiting voluntary counselling centres, STD clinics or prenatal test units", says APSACS joint director Padmavathi.
Andhra Pradesh is one of the States where HIV has become generalised epidemic with a prevalence rate of above one per cent. The prevalence is above one per cent in 18 districts and above two per cent in the districts of Kadapa, Nellore, Prakasam, Gutur, East and West Godavari and Srikakulam.
Another factor troubling APSACS is the spread of HIV among teenagers. About 50 per cent of the new infections reported are in the age group of 15 to 24 years. Taking prevalence into consideration, 45 per cent of the infections are in the age group of 15-29 years. About 90 per cent of the infections are in the age group of 15-49 years.
According to official statistics for 2004-2005, 3.66 per cent of HIV patients are below 14 years, 44.89 per cent in the age group of 15-29 years, 35.23 per cent (30-39 years), 12.45 per cent (40-49 years) and 3.77 per cent (above 50 years).
Probable modes of transmission as per the information reported in voluntary counselling and testing centres are: heterosexual transmission - 89.23 per cent; homosexual transmission - 0.46 per cent; infected syringes and needles - 0.80 per cent, blood and blood products - 0.98 per cent and others 8.5 per cent.

Saturday, February 23, 2008

India too can hit objects in space: Kalam


February 23, 2008
By Syed Akbar
Hyderabad, Feb 22: India has acquired the capability to hit foreign objects including space debris to protect its territory.
"We are capable of hitting foreign objects at a height of 200 km from the ground. When some object enters the Indian territory, it is our right to hit it and protect the country and its people. We have acquired the capability," missile man and former president APJ Abdul Kalam said.
Dr Kalam's statement gains significance in the backdrop of the United States of America shooting down its rogue spy satellite carrying dangerous toxic fuel. It has demonstrated the USA's effectiveness of missile defence system. India too is capable of protecting its territory from such foreign objects or rogue satellites.
India will, however, utilise the technology for peaceful purpose, though developed nations are vying with one another for militarisation of outer space.

Interacting with a select group of reporters after inaugurating the International Conference on Avionics System - 2008, at Research Centre Imarat here on Friday, Dr Kalam said the recent success of the DRDO in the launch of interceptor missile and Agni-III had taken India into the elite club of a few developed nations.
"The demonstration of air defence mission to intercept incoming ballistic missiles in both endo and exo atmospheric region propelled the country into a very select group of nations having such capability," he said adding that India's air defence programme has established several critical technologies including long range radar detection and tracking.
Earlier, Dr Kalam told defence scientists from various parts of the world that intercepting and destroying a flying and manoeuvring supersonic air target was a big challenge, especially if the attack was a surprise one and aided by jamming systems. "When the Akash surface to air missile system was being recently tested by the Air Force, they had demanded intercepting on air target by a ripple of two missiles.
This is to ensure hit probability of more than 99 per cent. The onboard avionics systems worked in unison for taking the missile close to the target within 35 metres. While the first missile exploded near the target, the second missile had to explode near debris of the first missile, which itself became the target for the second missile," he said.
Stating that the DRDO has developed an operationalised state of the art electronic warfare system such as Tempest, Samyukta and Sangraha, he emphasised the need to have built in facilities for active cyber warfare, so as to make the adversary systems ineffective by way of denial of service.
Dr Kalam said India was now moving towards micro and non sensor technology realise systems weighing a few grams. "We are for miniaturisation of missiles so that they could be mounted on aircraft," he said.

Friday, February 22, 2008

Simhachalam temple: Quite popular 1000 years ago too


February 22, 2008
By Syed Akbar
Hyderabad, Feb 21: Sri Narasimha Swamy temple atop the Simhachalam hill in Visakhapatnam was a major pilgrim centre as early as the 11th century CE, attracting thousands of pilgrims from far and wide, says senior temple science expert TP Sri Ramachandra Charyulu.
Sri Ramachandra Charyulu, who has decoded about 500 ancient inscriptions from the Simhachalam shrine, the second richest temple in Andhra Pradesh, says the writings recovered from the temple premises are unique and throw light on the cultural, social, economic and political situation of the Andhra desa of those times.
"Many temples have inscriptions. But those recovered from the Simhachalam temple are quite a large in number. The inscriptions deal with things as small as removing weeds from the Vimana (gopuram) of the temple to major religious rituals including offering of naivedhyam with condensed milk," Charyulu told this correspondent.
He said the Simhachalam temple used to receive generous donations from kings and ordinary pilgrims from all over south India even during 1100 CE. "We found gold coins offered during 1264 and 1266 by a ruler from Cuttack in Orissa. The coins and related inscriptions showed that the king had made permanent financial arrangement to meet the salaries of 100 temple danseuses and musicians. A temple having such
a large contingent of musicians is indeed rare. Even rich temples these days do not have so many paid artistes," he said. Stating that one of the inscriptions deals with condensation of milk from 30 litres to 10 litres before it was offered as daily Naivedhyam to the presiding deity, Charyulu said the people of those days had
perfected it an art.
"We are yet to study the complete set of inscriptions. A detailed research will give an insight into the mind of people living in the final moments of the first millennium and early second millennium. But unfortunately, blasting in and around the hills is damaging the treasure-trove, including the temple structure. We will lose these inscriptions for ever," Charyulu said.