A few extra pounds may harm lung function in black, hispanic kids
Differences in body fat distribution could boost asthma rates in some minorities, study says.
(HealthDay)—Even a small amount of extra weight can have a negative effect on the lung function of Hispanic and black children, according to a new study.
However, this is not the case for white children, the researchers noted. As a result, they suggested that differences in the distribution of body fat could help explain the greater prevalence of asthma in these minority groups. The study authors said their findings could help doctors identify and treat children with airway obstruction.
"While it has been well documented that Hispanics and African-Americans—particularly those who live in urban settings—have a higher prevalence of asthma and obesity, there is less understanding of the lung function in overweight asthmatic minority children," senior study author Dr. Deepa Rastogi, an attending physician in the division of respiratory and sleep medicine at the Children's Hospital at Montefiore in New York City, explained in a Montefiore news release.
"What we have learned from this study is that even small increases in weight can negatively impact lung function," Rastogi added.
In conducting the study, published in the February issue of the Journal of Asthma, the researchers examined the medical records of 980 children living in the Bronx ranging in age from 7 to 20. The records were collected from January 2003 to December 2007.
Although white children tend to be obese before they experience airway obstruction due to excess weight, the study revealed that just being overweight can have a negative effect on lung function among minority children.
"This information may prove to be helpful in the clinic," noted Rastogi, who is also an assistant professor of pediatrics at Albert Einstein College of Medicine of Yeshiva University. "Physicians might want to measure the degree of airway obstruction in Hispanic and African-American children who are both overweight or obese and asthmatic. Early identification of a drop in lung function can assist in better patient management."
While the study showed a connection between being overweight and having airway problems, it didn't establish a cause-and-effect relationship.
Although asthma is usually attributed to environmental factors such as secondhand smoke and exposure to dust or mold, the study authors suggested ethnic differences in body shape and upper body fat distribution may shed light on this discrepancy. Weight gain in Hispanics and blacks may be associated with increased abdominal fat, they explained. This extra belly fat could increase the prevalence of asthma in these minority groups.
The researchers noted previous research has shown that waist circumference is linked to the severity of asthma. Waist size, they added, also has an inverse relationship with lung function.
More information: The U.S. Centers for Disease Control and Prevention provides tips for parents on how to help their children maintain a healthy weight.
- Vitamin D deficiency linked with airway changes in children with severe asthma Sep 22, 2011 | not rated yet | 0
- Children who develop asthma have lung function deficits as neonates Mar 30, 2012 | not rated yet | 0
- New study finds obesity-asthma link in children varies by race/ethnicity Feb 27, 2012 | not rated yet | 0
- Heavy kids may not respond as well to asthma meds Mar 04, 2012 | not rated yet | 0
- Heavy traffic makes breathing a burden in children Dec 14, 2007 | not rated yet | 0
- Motion perception revisited: High Phi effect challenges established motion perception assumptions Apr 23, 2013 | 3 / 5 (2) | 2
- Anything you can do I can do better: Neuromolecular foundations of the superiority illusion (Update) Apr 02, 2013 | 4.5 / 5 (11) | 5
- The visual system as economist: Neural resource allocation in visual adaptation Mar 30, 2013 | 5 / 5 (2) | 9
- Separate lives: Neuronal and organismal lifespans decoupled Mar 27, 2013 | 4.9 / 5 (8) | 0
- Sizing things up: The evolutionary neurobiology of scale invariance Feb 28, 2013 | 4.8 / 5 (10) | 14
Indeterminism in Classical Physics
6 hours ago I was reading the Roger Penrose book Emperor's New Mind and he was explaining the determinism in Newtonian mechanics. He says that if we consider...
Current in two wires
6 hours ago Wire A and B, which have the same cross-sectional area are connected in series. There is a p.d. V across the whole wire. Suppose the two wires...
understanding the dipole model for Rayleigh scattering
8 hours ago Hello. I am currently studying scattering theory in detail for my BSc thesis, and I'm starting with Rayleigh scattering. I'm following Scattering...
question on coriolis effect with drag force
14 hours ago I really need help with this question. A small floating object initially moves with velocity v on the surface of a liquid at latitude λ. The...
Question of reflection and transmission of TEM wave in normal incidenc
20 hours ago Suppose TEM wave in +z normal to a boundary on xy plane at z=0. We know *E* & *H* are tangential to the boundary. Let ##\vec E_i=\hat x E##, be the...
the rudyak-krasnolutski effective potencial
21 hours ago Hi ... anyone now how to calculate or the formula of the rudyak-krasnolutski EFFECTIVE potencial ? the effective potencial includes the angular...
- More from Physics Forums - Classical Physics
More news stories
Children living in households where the parents are married are less likely to be obese, according to new research from Rice University and the University of Houston.
Overweight and Obesity May 22, 2013 | not rated yet | 0
In the long run, encouraging a baby to finish the last ounce in their bottle might be doing more harm than good.
Overweight and Obesity May 22, 2013 | not rated yet | 0 |
Research presented today shows that high-fructose corn syrup can cause behavioural reactions in rats similar to those produced by drugs of abuse such as cocaine. These results, presented by addiction expert Francesco Leri, ...
Overweight and Obesity May 22, 2013 | 4 / 5 (1) | 0
As many as 35 percent of Mexican young adults may have a genetic predisposition for obesity, said a University of Illinois scientist who conducted a study at the Universidad Autónoma de San Luis Potosί.
Overweight and Obesity May 21, 2013 | not rated yet | 0
Overweight and obese patients are significantly more likely than their normal-weight counterparts to repeatedly switch primary care doctors, a practice that disrupts continuity of care and leads to more emergency room visits, ...
Overweight and Obesity May 21, 2013 | not rated yet | 0
Women at a particular stage in their monthly menstrual cycle may be more vulnerable to some of the psychological side-effects associated with stressful experiences, according to a study from UCL.
1 hour ago | not rated yet | 0 |
(HealthDay)—We've all seen them: the surfers who race to the beach when a hurricane hits, the guy who decides to ride out the storm in his overmatched boat, the tornado chasers who fearlessly steer their ...
25 minutes ago | not rated yet | 0
(HealthDay)—New evidence-based guidelines provide guidance on medical and surgical methods for second-trimester abortion and management of associated complications, according to a practice bulletin published ...
5 minutes ago | not rated yet | 0
Cancer cells spread and grow by avoiding detection and destruction by the immune system. Stimulation of the immune system can help to eliminate cancer cells; however, there are many factors that cause the immune system to ...
43 minutes ago | not rated yet | 0
In recent years, microRNAs (miRNAs) and other non-coding RNAs are small molecules that help control the expression of specific proteins. In recent years they have emerged as disease biomarkers. miRNA profiles have been used ...
42 minutes ago | not rated yet | 0