著者
久保 英幸
出版者
Osaka Urban Living and Health Association
雑誌
生活衛生 (ISSN:05824176)
巻号頁・発行日
vol.54, no.3, pp.219-228, 2010-07-30 (Released:2010-08-10)
参考文献数
31

The occurrence of human-human infection with the new influenza A(H1N1) virus (AH1pdm) was reported for the first time in the United States in late April 2009. Sequentially, pandemic AH1pdm was reported worldwide. Laboratory examinations to detect AH1pdm genes in the specimens of patients with influenza-like illness (ILI) were performed with real-time RT-PCR and conventional RT-PCR at my institute in Osaka City. The first case of AH1pdm genes detection in an ILI patient specimen occurred on April 30, 2009. The number of ILI patient specimens examined increased in May 2009, and 37-120 specimens per month were examined from May to December 2009. In Osaka City, the pandemic of AH1pdm began in July 2009 and the pandemic peak was observed in November 2009. Thereafter, the number of ILI patients with AH1pdm infection decreased gradually and the pandemic of AH1pdm was close to exhausted in March 2010. As it is not possible to estimate the pandemic pattern of AH1pdm in the future, strict surveillance for AH1pdm must be performed with other seasonal influenza viruses.
著者
中村 美咲 西川 和男
出版者
Osaka Urban Living and Health Association
雑誌
生活衛生 (ISSN:05824176)
巻号頁・発行日
vol.53, no.4, pp.239-246, 2009-10-30 (Released:2009-11-10)
参考文献数
3
被引用文献数
1

We have developed a discharge plasma air-cleaning technology known as PlasmaCluster IonR (PCI), which generates both positive and negative ions in the air. The present study was designed to determine the mechanism of the ions' effect on bacteria. We confirmed that PCI destroys the surface of airborne and attached bacteria. The present paper reports the principle of PCI and the results of examination of its bactericidal effect. We also show how the device produces cluster ions from a specially designed discharge electrode and investigate what types of ion are detected in mass-spectroscopy analysis.
著者
三浦 克之 菊川 友子 中尾 隆文 東海 秀吉 泉 康雄 藤井 比佐子 北條 泰輔
出版者
Osaka Urban Living and Health Association
雑誌
生活衛生 (ISSN:05824176)
巻号頁・発行日
vol.55, no.1, pp.59-64, 2011-03-10 (Released:2011-03-18)
参考文献数
13
被引用文献数
1

In order to assess the safety of electronic cigarettes, 32 smokers who consume more than 20 tobacco cigarettes daily were enrolled in the present study. The cartridge of an electronic cigarette contains 0.25 g of glycerin aqueous solution. Each participant was asked to consume one filter cartridge per day (more than 150 puffs per day) for 4 weeks. Following the treatment, no abnormal changes in blood pressure, hematological data, or blood chemistry and no severe adverse events were observed. Although a trace amount of acrolein was detected in the vapor collected from a single filter cartridge, it was less than the minimum amount in the mainstream smoke from a single tobacco cigarette. During the use of the electronic cigarette, the daily consumption of tobacco cigarettes decreased significantly. This electronic cigarette containing glycerin aqueous solution may be a safe alternative to cigarette smoking.
著者
濱田 信夫 藤田 忠雄
出版者
Osaka Urban Living and Health Association
雑誌
生活衛生 (ISSN:05824176)
巻号頁・発行日
vol.45, no.2, pp.51-61, 2001-03-30 (Released:2010-03-11)
参考文献数
39
被引用文献数
2
著者
石井 営次 乾 美智子 高橋 美帆 塚本 晶子 林 茂美 三浦 和美
出版者
(社)大阪生活衛生協会
雑誌
生活衛生 (ISSN:05824176)
巻号頁・発行日
vol.35, no.5, pp.228-232, 1991-09-10 (Released:2010-03-11)
参考文献数
3
被引用文献数
1

Bacterial contamination in tableware sponge polishers for kitchen use was examined and means for sterilization were sought. Among 36 polishers including 4 for use at places of business, a colony forming unit for each polisher measured by standard plate count, exceeded 109 in 21 polishers, and 108 in 32 polishers, of which a number of coliforms in MPN was more than 106 in each polisher. Although no Salmonella could be detected, Staphylococcus aureus and Bacillus cereus were found in 9 and 15 polishers, respectively. Polishers treated with boiling water every day and which dried easily showed a low number of bacterium, from 102 to 103. Bacterial contaminated polishers were sterilized by boiling water for more than 30 seconds every day, but not by chemicals or disinfectant. Salmonella, S. aureus, and Escherichia coli were found capable of growing in polishers at 25°C.
著者
濱田 信夫
出版者
(社)大阪生活衛生協会
雑誌
生活衛生 (ISSN:05824176)
巻号頁・発行日
vol.43, no.3, pp.89-96, 1999-05-30 (Released:2010-03-11)
参考文献数
18

Fungal and yeasty contamination in bathrooms was studied using the swabbing method. The average number of fungi was larger on the ceiling and upper parts of the wall than that of the floor and lower parts of the wall. In the upper parts of the bathroom, Cladosporium was the predominant fungi in both summer and winter, followed by Exophiala, Aureobasidium, Phoma and Acremonium. In the lower parts of the bathroom, Exophiala was predominant, and represented around 80% of all fungi. Rhodotorula was the predominant yeast in all parts of the bathroom. Cladosporium, more than Exophiala, Rhodotorula and others, seemed to affect the dirtiness of bathrooms. Additionally, the growth rate of each type of fungus on the walls of the bathroom were compared after cleaning. It was observed that the number of fungi after 2 months was less than half that of pre-cleaning.Ventilation was effective in reducing fungal and yeasty contamination. The effects of moisture on fungal contamination was more remarkable in the upper parts of the bathroom than in the lower parts, including the floor. The effects of cleaning were distinctly recognized on the floor, because the frequency of cleaning the floor is much higher than that of the upper parts of the bathroom.
著者
板野 一臣
出版者
Osaka Urban Living and Health Association
雑誌
生活衛生 (ISSN:05824176)
巻号頁・発行日
vol.51, no.2, pp.57-65, 2007 (Released:2007-04-07)
参考文献数
63
被引用文献数
2

Mercury is present in the environment in elemental, inorganic and organic (methylated) forms. As methylmercury bioaccumulates up the marine food chain, large predatory species such as tuna, shark and swordfish have high concentrations of methylmercury in their tissue. Almost all of the mercury in marine fish is methylmercury. As small cetaceans such as toothed whale and dolphin are long-lived and occupy the top of the marine food chain, they contain more mercury in their tissue than large predatory fish. Small cetaceans demethylate methylmercury into inorganic mercury and store it in the liver as mercury selenide. Marine seafood is one of the major sources of mercury in the human food chain.The provisional tolerable weekly intake (PTWI) for methylmercury of 3.3 μg/kg-body weight for the general population was established by the Joint FAO/WHO Expert Committee on Food Additives (JECFA) in 1972. In 1973, the Japanese Ministry of Health and Welfare set the provisional permitted levels of total mercury and methylmercury in marine food at 0.4 and 0.3 μg/wet-g, respectively. These levels were based on the PTWI of JECFA. In 2003, from the outcomes of two cohort studies in the Faroe Islands and Seychelles Islands regarding the effect of fetal methylmercury exposure on children’s development, JECFA set the PTWI of methylmercury at 1.6 μg/kg-body weight for pregnant women. In 2005, the Japanese Food Safety Commission announced a tolerable weekly intake (TWI) for methylmercury of 2.0 μg/kg-body weight for women who are or may be pregnant. The Japanese average daily intake of mercury from foods is about 60% of the TWI.
著者
亀井 正治
出版者
社団法人 大阪生活衛生協会
雑誌
生活衛生 (ISSN:05824176)
巻号頁・発行日
vol.37, no.5, pp.197-213, 1993-09-10 (Released:2010-03-11)
参考文献数
60
被引用文献数
1
著者
今井 長兵衛
出版者
(社)大阪生活衛生協会
雑誌
生活衛生 (ISSN:05824176)
巻号頁・発行日
vol.51, no.4, pp.225-240, 2007 (Released:2007-08-07)
参考文献数
38

West Nile virus (WNV), St. Louis Encephalitis virus (SLEV) and Japanese Encephalitis virus (JEV) are closely related and all belong to the JEV antigen group of flaviviruses. An epidemic of WNV was first reported from the United States in 1999, where an SLEV epidemic had been observed since 1933 in central and southern regions. Recently, the probability of the spread of WNV to Japan has increased year by year. The present article first described the relationship between the WNV and SLEV epidemics in the United States in order to suggest the existence of a cross-immunity to WNV caused by SLEV infection in the American population. Secondly, the past and present status of JEV epidemics and JEV vaccination in Japan were explained in relation to the socio-economic changes after the Second World War. Finally, the article suggested that the level of cross-immunity to WNV caused by natural infection and vaccination with JEV in the Japanese population may not be high enough to prevent a WNV epidemic after the possible future spread of WNV to Japan.
著者
石川 篤志 岸 幹也 山上 圭吾
出版者
(社)大阪生活衛生協会
雑誌
生活衛生 (ISSN:05824176)
巻号頁・発行日
vol.53, no.4, pp.257-260, 2009-10-30 (Released:2009-11-10)
参考文献数
20
被引用文献数
1

To evaluate the effect of natto and soybeans on postprandial blood glucose level, a crossover study was conducted in 12 healthy male volunteers.Subjects were given a control meal (white rice), a natto meal (white rice with natto), or a soybean meal (white rice with steamed soybeans), and blood glucose level in each group was measured before and 15, 30, 45, 60, 90, and 120 minutes after intake.After both the soybean and natto meals, the blood glucose level at 60 minutes after intake was significantly lower than after the control meal. However, only the natto meal, and not the soybean meal, significantly suppressed the rise in blood glucose level at 60 minutes compared to the control meal. Furthermore, the area under the glucose curve from 0 to 120 min after the natto meal was significantly smaller than for the control meal.These results suggest that natto is useful for the control of postprandial blood glucose level.
著者
濱田 信夫 森 義明
出版者
Osaka Urban Living and Health Association
雑誌
生活衛生 (ISSN:05824176)
巻号頁・発行日
vol.47, no.3, pp.139-144, 2003-05-30 (Released:2010-03-11)
参考文献数
14
被引用文献数
1

Change of fungal and bacterial counts inoculated to towel and subjected to treatment by clothes dryer or natural sun-drying was examined. No significant difference was found in sterilizing effect on fungi and bacteria by drying of towel in the sun or in the shade. Sterilizing effect on C. cladosporioides and P. digitatum was higher in towel sun-dried in summer than in winter, and in towel dried by clothes dryer at higher temperatures than at lower temperatures. E. coli as well as T. rubrum seems to be killed with loss of moisture in towel regardless of temperature at which towel is dried.
著者
増田 淳二 森脇 洋 福山 丈二
出版者
Osaka Urban Living and Health Association
雑誌
生活衛生 (ISSN:05824176)
巻号頁・発行日
vol.48, no.2, pp.92-96, 2004 (Released:2005-01-27)
参考文献数
5
被引用文献数
1

The deodorizing effects of tea leaves and used tea leaves were evaluated. Absorption capacities of sencha (Japanese green tea), hojicha (Japanese roasted tea), oolong tea and black tea for hydrogen sulfide, methyl mercaptan, toluene and ammonia were determined. These tea leaves were found to absorb small amounts of toluene and negligible amounts hydrogen sulfide and methyl mercaptan, but were very effective in absorbing. No correlation was found between the catechin concentrations of the tea leaves and their absorption capacities.
著者
川越 昌子 川井 信子 亀井 正治 中沢 るみ
出版者
Osaka Urban Living and Health Association
雑誌
生活衛生 (ISSN:05824176)
巻号頁・発行日
vol.42, no.5, pp.183-186, 1998-09-30 (Released:2010-03-11)
参考文献数
17
被引用文献数
1 5

The content of potassium, calcium, magnesium, phosphorus, iron, zinc, copper, manganese, carotene, thiamin, riboflavin and ascorbic acid was determined in samples of fresh and cooked broccoli. The cooking methods were boiling (conventional methods), waterless cooking (steaming in pot with little water), and microwave heating.In boiled broccoli, potassium and zinc retention were less than 50%. Carotene retention was over 98%. Ascorbic acid retention was 44%.In the waterless and the microwave cooked broccoli, retention was over 87% for each mineral. Carotene retention was over 98%. Ascorbic acid retention was over 84%.Mineral and water soluble vitamin retention by waterless cooking were higher than by boilng.