Results 41 to 50 of about 1,493,150 (189)

Unearthing Forest History: Integrating Soil Charcoal Macrofossils and Pollen Reveals Delayed Forest Responses to Holocene Climatic Transitions in Boreal-Temperate Ecotone. [PDF]

Ecol Evol
This study reconstructs long‐term vegetation dynamics at the boreal–temperate forest ecotone in eastern Canada using soil charcoal, pollen records, and forest inventories. Results reveal a delayed expansion of thermophilous tree species and a late borealization of the landscape in relation to climate change, alongside recent stand‐scale shifts driven ...
Rioux-Couture C, Grondin P, de Lafontaine G.   +2 more
europepmc   +2 more sources

An improved pollen number counting method using a cell counter and mesh columns

Plant Methods, 2020
Background The determination of pollen number is important in evolutionary, agricultural, and medical studies. Tree species of the Cupressaceae family cause serious pollinosis worldwide.
Hiroyuki Kakui, Eriko Tsurisaki, Hidenori Sassa, Yoshinari Moriguchi   +3 more
doaj   +1 more source

Exposure to Japanese Cedar Pollen in Early Life and Subsequent Sensitization to Japanese Cedar Pollen.

Journal of Epidemiology, 2000
The effect of exposure to Japanese cedar pollen (JCP) in early life on subsequent sensitization to it was evaluated. Specific IgE antibody to JCP was examined in 440-504 school children in a rural town each year during 1995-98. The amount of dispersed pollen measured by a Durham sampler widely ranged from 165 to 5941 grains/cm2/year during this period.
Ozasa, Kotaro, Dejima, Kenji, Hama, Takemitsu, Watanabe, Yoshiyuki, Takenaka, Hiroshi   +4 more
openaire   +3 more sources

Relationship between airborne pollen count and treatment outcome in Japanese cedar pollinosis patients. [PDF]

, 2009
In Japan, information on daily Japanese cedar pollen counts is made public during pollen season. If symptom severity and treatment outcome are predictable according to these pollen counts, management of seasonal allergic rhinitis may become more precise.
Takahashi, Haruo, Enatsu, Kaori, Kumagami, Hidetaka, Takasaki, Kenji   +3 more
core   +1 more source

CRISPR/Cas9-mediated disruption of CjACOS5 confers no-pollen formation on sugi trees (Cryptomeria japonica D. Don)

Scientific Reports, 2023
Sugi (Cryptomeria japonica D. Don) is an economically important coniferous tree in Japan. However, abundant sugi pollen grains are dispersed and transported by the wind each spring and cause a severe pollen allergy syndrome (Japanese cedar pollinosis ...
Mitsuru Nishiguchi, Norihiro Futamura, Masaki Endo, Masafumi Mikami, Seiichi Toki, Shin-Ichiro Katahata, Yasunori Ohmiya, Ken-ichi Konagaya, Yoshihiko Nanasato, Toru Taniguchi, Tsuyoshi Emilio Maruyama   +10 more
doaj   +1 more source

Daily Japanese cedar pollen forecast in Sendai.

Nippon Jibiinkoka Gakkai Kaiho, 1990
The forecast of daily Japanese cedar (Cryptomeria japonica) pollen counts was performed in Sendai in 1987, 1988 and 1989. The expected daily maximum temperature was used as a main determinative factor, and the term "pollen index", which is a ratio of a daily pollen count to the rest of the total seasonal pollen count, was devised and proved to be ...
SATAKE, MITSUAKI, SHIBAHARA, YOSHIHIRO, ISHIGAKI, MOTOAKI, TAKASAKA, TOMONORI   +3 more
openaire   +3 more sources

Experimental Sensitization with Japanese Cedar Pollen in Dogs.

Journal of Veterinary Medical Science, 2000
Japanese cedar pollinosis is a type I allergic disease mediated by immunoglobulin E (IgE) antibodies to Japanese cedar (Cryptomeria japonica) pollen antigen (CPAg). By using 22 dogs consisting of 20 dogs aged 3 months and 2 dogs aged 3 years, immunization was performed by subcutaneous injections of CPAg with aluminum hydroxide gel.
YAMASHITA, Kohei, MASUDA, Kenichi, SAKAGUCHI, Masahiro, ODAGIRI, Taihei, NAKAO, Yoshiki, YAMAKI, Mitsuo, HASEGAWA, Atsuhiko, MATSUO, Yuhsi, J. DEBOER, Douglas, OHNO, Koichi, TSUJIMOTO, Hajime   +10 more
openaire   +3 more sources

Protease Activity of Allergenic Pollen of Cedar, Cypress, Juniper, Birch and Ragweed [PDF]

, 2008
BackgroundPollen is an important trigger of allergic rhinitis, conjunctivitis, and/or asthma, and an exacerbating factor in atopic dermatitis. Although it is proposed that protease activity from allergen sources, such as mites, enhances allergenicity ...
Toshiro Takai, Hendra Gunawan, Ko Okumura, Hideoki Ogawa, Shigaku Ikeda   +4 more
core   +1 more source

CLINICAL OBSERVATIONS ON HAY FEVER DUE TO JAPANESE CEDAR POLLEN [PDF]

, 1967
In 1963, hay fever due to Japanese cedar pollen was found at first by the authors in Nikko City, Tochigi Prefecture where there is a great number of Japanese cedar (Cryptomeria japonica D. Don).
Sinsak HORIGUTI
core   +1 more source

Pollen Survey and Pollen-Asthma in Okayama [PDF]

, 1975
A pollen survey was conducted in Okayama for the 1972 calendar year. The results were similar to those of other districts of Japan. There were three pollen seasons: the tree, the grass and the weed season.
Kimura, Ikuro, Ikuro Kimura
core   +1 more source