Flavonoids isolated from Tridax procumbens (TPF) inhibit osteoclasts differentiation and bone resorption.

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Flavonoids isolated from Tridax procumbens (TPF) inhibit osteoclasts differentiation and bone resorption.

Biol Res. 2015;48(1):51

Authors: Al Mamun MA, Islam K, Alam MJ, Khatun A, Alam MM, Al-Bari MA, Alam MJ

Abstract
BACKGROUND: The Tridax procumbens flavonoids (TPF), are well known for their medicinal properties among local natives. The TPF are traditionally used for dropsy, anaemia, arthritis, gout, asthma, ulcer, piles, and urinary problems. It also used in treating gastric problems, body pain, and rheumatic pains of joints. The TPF have been reported to increase osteogenic functioning in mesenchymal stem cells. However, their effects on osteoclastogenesis remain unclear. The TPF isolated from T. procumbens and investigated the effects of the TPF inhibit on osteoclast differentiation and bone resorption activities using primary osteoclastic cells. Osteoclast formation was assessed by counting the number of tartrate resistant acid phosphatase (TRAP) positive multinucleated cells and by measuring both TRAP activities.
RESULTS: The TPF significantly suppressed the RANKL-induced differentiation of osteoclasts and the formation of pits in primary osteoclastic cells. The TPF also decreased the expression of mRNAs related to osteoclast differentiation, including Trap, Cathepsin K, Mmp-9, and Mmp-13 in primary osteoclastic cells. The treatment of primary osteoclastic cells with the TPF decreased Cathepsin K, Mmp-9, and Mmp-13 proteins expression in primary osteoclastic cells.
CONCLUSION: These results indicated that TPF inhibit osteoclastogenesis and pits formation activities. Our results suggest that the TPF could be a potential anti-bone resorptic agent to treat patients with bone loss-associated diseases such as osteoporosis.

PMID: 26363910 [PubMed – in process]

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Why Fall Is Worst Season for Your Child’s Asthma – Health Essentials from Cleveland Clinic (blog)


Health Essentials from Cleveland Clinic (blog)

Why Fall Is Worst Season for Your Child's Asthma
Health Essentials from Cleveland Clinic (blog)
After children head back to school, they go straight into peak virus season. If your child has asthma, this can exasperate the condition. It's important to anticipate heightened symptoms and have a plan in place, says Giovanni Piedimonte, MD, Institute

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Why Fall Is Worst Season for Your Child’s Asthma – Health Hub from Cleveland Clinic


Health Hub from Cleveland Clinic

Why Fall Is Worst Season for Your Child's Asthma
Health Hub from Cleveland Clinic
After children head back to school, they go straight into peak virus season. If your child has asthma, this can exasperate the condition. It's important to anticipate heightened symptoms and have a plan in place, says Giovanni Piedimonte, MD, Institute

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WMTV

Here's How Dirt Might Protect Kids From Asthma
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(NBC NEWS)—Researchers in Europe think they have figured out how dirt might help protect kids from developing allergies and asthma. They found that dust from dairy farms stimulates an immune response in the lungs of mice that appears to protect
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Here’s How Dirt Might Protect Kids From Asthma – NBCNews.com


Science /AAAS

Here's How Dirt Might Protect Kids From Asthma
NBCNews.com
Researchers in Europe think they have figured out how dirt might help protect kids from developing allergies and asthma. They found that dust from dairy farms stimulates an immune response in the lungs of mice that appears to protect against asthma
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The Apprentice's Stuart Baggs 'The Brand' buried today after dying from asthma
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'Mr Baggs had suffered from asthma for many years and died as a result of his condition,' the statement said. Inspector Michelle McKillop said: 'From the reaction we have encountered during our inquiries it is clear that this is a tragic and premature
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MassLive.com

Transplanted from Springfield, Kellogg family leads fight against asthma
MassLive.com
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New push to help schools treat students who suffer from asthma – WABC-TV


WABC-TV

New push to help schools treat students who suffer from asthma
WABC-TV
With the new school year on the horizon, there is a push to help all students with asthma get the care they need. The initiative was discussed Wednesday in the Bronx, where childhood rates of asthma are above average. Some 36,000 children in the Bronx …
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Genetic Ancestry and Asthma and Rhinitis Occurrence in Hispanic Children: Findings from the Southern California Children’s Health Study.

Genetic Ancestry and Asthma and Rhinitis Occurrence in Hispanic Children: Findings from the Southern California Children’s Health Study.

PLoS One. 2015;10(8):e0135384

Authors: Salam MT, Avoundjian T, Knight WM, Gilliland FD

Abstract
BACKGROUND: Asthma and rhinitis are common childhood health conditions. Being an understudied and rapidly growing population in the US, Hispanic children have a varying risk for these conditions that may result from sociocultural (including acculturative factors), exposure and genetic diversities. Hispanic populations have varying contributions from European, Amerindian and African ancestries. While previous literature separately reported associations between genetic ancestry and acculturation factors with asthma, whether Amerindian ancestry and acculturative factors have independent associations with development of early-life asthma and rhinitis in Hispanic children remains unknown. We hypothesized that genetic ancestry is an important determinant of early-life asthma and rhinitis occurrence in Hispanic children independent of sociodemographic, acculturation and environmental factors.
METHODS: Subjects were Hispanic children (5-7 years) who participated in the southern California Children’s Health Study. Data from birth certificates and questionnaire provided information on acculturation, sociodemographic and environmental factors. Genetic ancestries (Amerindian, European, African and Asian) were estimated based on 233 ancestry informative markers. Asthma was defined by parental report of doctor-diagnosed asthma. Rhinitis was defined by parental report of a history of chronic sneezing or runny or blocked nose without a cold or flu. Sample sizes were 1,719 and 1,788 for investigating the role of genetic ancestry on asthma and rhinitis, respectively.
RESULTS: Children had major contributions from Amerindian and European ancestries. After accounting for potential confounders, per 25% increase in Amerindian ancestry was associated with 17.6% (95% confidence interval [CI]: 0.74-0.99) and 13.6% (95% CI: 0.79-0.98) lower odds of asthma and rhinitis, respectively. Acculturation was not associated with either outcome.
CONCLUSIONS: Earlier work documented that Hispanic children with significant contribution from African ancestry are at increased asthma risk; however, in Hispanic children who have little contribution from African ancestry, Amerindian ancestry was independently associated with lower odds for development of early-childhood asthma and rhinitis.

PMID: 26263549 [PubMed – in process]

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