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PubMed2003

Dose- and time-dependent effects of a novel (-)-hydroxycitric acid extract on body weight, hepatic and testicular lipid peroxidation, DNA fragmentation and histopathological data over a period of 90 days.

(-)-Hydroxycitric acid (HCA), a natural extract from the dried fruit rind of Garcinia cambogia (family Guttiferae), is a popular supplement for weight management. The dried fruit rind has been used for centuries as a condiment in Southeastern Asia to make food more filling and satisfying. A significant number of studies highlight the efficacy of Super CitriMax (HCA-SX, a novel 60% calcium-potassium salt of HCA derived from Garcinia cambogia) in weight management. These studies also demonstrate that HCA-SX promotes fat oxidation, inhibits ATP-citrate lyase (a building block for fat synthesis), and lowers the level of leptin in obese subjects. Acute oral, acute dermal, primary dermal irritation and primary eye irritation toxicity studies have demonstrated the safety of HCA-SX. However, no long-term safety of HCA-SX or any other (-)-hydroxycitric acid extract has been previously assessed. In this study, we have evaluated the dose- and time-dependent effects of HCA-SX in Sprague-Dawley rats on body weight, hepatic and testicular lipid peroxidation, DNA fragmentation, liver and testis weight, expressed as such and as a % of body weight and brain weight, and histopathological changes over a period of 90 days. The animals were treated with 0, 0.2, 2.0 and 5.0% HCA-SX as feed intake and the animals were sacrificed on 30, 60 or 90 days of treatment. The feed and water intake were assessed and correlated with the reduction in body weight. HCA-SX supplementation demonstrated a reduction in body weight in both male and female rats over a period of 90 days as compared to the corresponding control animals. An advancing age-induced marginal increase in hepatic lipid peroxidation was observed in both male and female rats as compared to the corresponding control animals. However, no such difference in hepatic DNA fragmentation and testicular lipid peroxidation and DNA fragmentation was observed. Furthermore, liver and testis weight, expressed as such and as a percentage of body weight and brain weight, at 30, 60 and 90 days of treatment, exhibited no significant difference between the four groups. Taken together, these results indicate that treatment of HCA-SX over a period of 90 days results in a reduction in body weight, but did not cause any changes in hepatic and testicular lipid peroxidation, DNA fragmentation, or histopathological changes.

ATP Citrate (pro-S)-Lyase↗
PubMed2000

Bidi smoking and health.

Bidi, made of low-grade tobacco, is popular among rural folk and the urban poor, in the South Asian region. The objectives of this study were: (1) to assess the extent of bidi smoking in different countries; (2) to compare its smoke and health hazards with conventional cigarettes and; (3) to recommend preventive measures. English language articles were identified through a MEDLINE computerised search (1966-1998) using the term 'bidi', 'beedi', 'beedie', 'biri' and manually in order to collate all the available information and to present a descriptive epidemiological profile. The prevalence of bidi smoking was found to be 21-56% among men in South Asian countries with very little information available about women. Concentrations of nicotine, tar and other toxic agents in the smoke are higher for bidi than for other cigarettes. Bidi smoking is also considered to cause about 2-3 times greater nicotine and tar inhalation than do conventional cigarettes, due to the poor combustibility of the bidi wrapper and greater puff frequency needed to keep the bidi alight. It has also been shown to have greater odds ratios, although not statistically significant, for various cancerous and chronic conditions in comparison with other cigarettes. Since bidi is hand-rolled, workers employed in bidi factories are at risk of developing cancerous conditions due to exposure to tobacco dust and flakes. We suggest that anti-smoking campaigns should be directed to the bidi smokers of all South Asian countries. Most bidi smokers are illiterate and malnourished which makes them more vulnerable to smoking-related morbidity and mortality. At the same time, measures should be taken to make bidi less harmful and to produce bidi by machine to reduce exposure-related toxicity among bidi production workers.

Adolescent↗
PubMed2000

Mitochondrial DNA variation, phylogeography and population structure of the Asian elephant.

We report the first genetic analysis of free-ranging Asian elephants (Elephas maximus). We sampled 118 elephants from Sri Lanka, Bhutan/North India, and Laos/Vietnam by extracting DNA from dung, PCR amplifying and sequencing 630 nucleotides of mitochondrial DNA, including part of the variable left domain of the control region. Comparison with African elephant (Loxodonta africana) sequences indicated a relatively slow molecular clock in the Proboscidea with a sequence divergence of approximately 1%/Myr. Genetic diversity within Asian elephants was low, suggesting a small long-term effective population size. Seventeen haplotypes were identified within Asian elephants, which clustered into two well-differentiated assemblages with an estimated Pliocene divergence of 2.5-3.5 million years ago. The two assemblages showed incomplete geographical partitioning, suggesting allopatric divergence and secondary admixture. On the mainland, little genetic differentiation was observed between elephant populations of Bhutan and India or Laos and Vietnam. A significant difference in haplotype frequencies but relatively weak subdivision was observed between the regions Bhutan-India and Laos-Vietnam. Significant genetic differentiation was observed between the mainland and Sri Lanka, and between northern, mid-latitude and southern regions in Sri Lanka.

Animals↗
PubMed1999

Predictors of career commitment and employment level of tertiary-educated Indonesian women.

This study investigated the relationships among education, liberal sex-role values, gender-role orientation (masculinity/femininity), career commitment, and employment level for a sample of 302 married Indonesian women. All participants were tertiary educated and currently employed either as teachers in tertiary institutions or as managers in government or private enterprise. Multiple regression analysis revealed that liberal sex-role values and masculinity were significant predictors of career commitment, whereas education was the only variable to significantly predict employment level. Results are compared with previous research on predictors of career commitment and employment level in both Asian and Western cultures. Directions for further research are discussed.

Asia↗