Publications by authors named "Natsuko Masumoto"

Objective: No questionnaire aimed at evaluating the quality of life (QOL) of children with food allergies has been developed in Japan. Therefore, this study was aimed at developing a Japanese version of a QOL questionnaire for children with food allergies to be responded to by their parents.

Methods: A 59-question primary questionnaire was developed for parents of children aged 0 to 15 years who had food allergies.

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Objective: Quality of life (QOL) questionnaires for parents of children with food allergies have been developed in the United States and Europe. However, no original Japanese QOL questionnaire has been developed till date. We aimed to develop an original questionnaire to evaluate the QOL in parents of children with food allergies in Japan.

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Background: When corticosteroids are used for a long time in patients with bronchial asthma, a decrease in adrenal cortex function occurs. We investigated the use of salivary cortisol measurements as a simple, noninvasive method for the evaluation of the adrenal cortex function in pediatric asthmatic patients.

Methods: Plasma and salivary cortisol levels were measured from 8:00 am to 10:00 am in 248 pediatric asthmatic patients aged 0-18 years that were under long-term care management at the National Hospital Organization Fukuoka National Hospital in 2011-2013.

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Cow's milk is one of the most common food allergens among children. Oral food challenge tests determine the threshold dose of allergens, but have not been standardized. To reduce the severe reactions, we developed a practical model of the test.

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We report the case of a boy with a history of atopic dermatitis starting in infancy. At the age of four, his family moved into a newly built house at the foot of a mountain. One year later, he was diagnosed with Japanese Cedar pollinosis.

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Background: Hypophosphatasia (HPP) is a rare genetic disorder characterized by rachitic bone manifestations and a low serum alkaline phosphatase (ALP) level. It is caused by mutations in the tissue non-specific alkaline phosphatase (TNSALP) gene, which encodes the tissue non-specific isozyme of ALP. HPP patients exhibit various presentations depending on their age at onset, such as infantile HPP combined with vitamin B6-responsive seizures.

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Background: Although Faecalibacterium prausnitzii is a major bacterium in the intestine of adults, which is known to have anti-inflammatory effects, the development in infants or the response to prebiotics remains unclear.

Methods: The counts of F. prausnitzii in the feces were examined by real-time polymerase chain reaction (PCR).

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Blue rubber bleb nevus syndrome (BRBNS) involves cutaneous vascular malformation characterized by multiple venous malformations. This commonly affects the skin and gastrointestinal tract. BRBNS is associated with anemia and occasionally involves orthopedic manifestations.

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Background: Treatment of infantile and childhood atopic dermatitis needs special consideration compared to adult's counterpart. Repeated exposure to irritation by slaver or rubbing makes facial lesions difficult to treat in infants and children. We considered the deterioration factor and the treatment that we performed.

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Background: Recently, the fraction of exhaled nitric oxide (FENO), which can be measured easily and noninvasively even in children, has attracted attention as a method of evaluating airway inflammation. The aim of this study was to investigate the relationship between compliance with inhaled corticosteroids (ICS) before a summer camp for asthmatic children and the changes in the FENO during camp.

Methods: Fifty asthmatic children (26 boys and 24 girls) aged 6-12 years old were recruited from the Fukuoka National Hospital Summer Camp between 2008 and 2010.

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Objective: Vocal cord dysfunction (VCD) is a condition characterized by adduction of the vocal cords, resulting in narrowing or even closure of the glottis during inspiration. This can cause wheezing that originates at the site of narrowing. Some patients have both VCD and asthma.

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Background: Though the epidemiological relationship between obesity and asthma has been widely investigated, the mechanism is less known. Several studies have examined that weight loss improved lung function in adults. However, it has not been systematically studied in children.

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