growth factor
growth factor Any of various chemicals, particularly polypeptides, that have a variety of important roles in the stimulation of new cell growth and cell maintenance. They bind to the cell surface on receptors. Specific growth factors can cause new cell proliferation (
epidermal growth factor,
insulin-like growth factor, haemopoietic growth factor – see
haemopoietic tissue) and the migration of cells (
fibroblast growth factor) and play a role in wound healing (
platelet-derived growth factor;
PDGF). Some growth factors act in the embryonic stage of development; for example,
nerve growth factor stimulates the growth of axons and dendrites from developing sensory and sympathetic neurons. It is thought that some growth factors are involved in the abnormal regulation of growth seen in cancer when produced in excessive amounts.
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WITCH HAZEL: ASTRINGENT, CLEANSER AND SOOTHER.
Magazine article from: Household & Personal Products Industry; 10/1/2000; ; 700+ words
; WITCH HAZEL IS a native North American plant...sugar called hamamelose. Commercial witch hazel is commonly sold as an 86% extract...for the astringency effect of witch hazel. However, a witch hazel manufacturing company presented a study...
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Witch hazel wards off their recession ; Town prospers as maker sees double-digit growth
Newspaper article from: The Boston Globe; 10/5/2009; ; 700+ words
; ...on Connecticut Route 66. This is witch hazel, hamamelis virginiana. It stands...natural ingredients, alcohol and witch hazel. More recently, a sister company...been producing and selling witch hazel - the ingredient - in bulk to hundreds...
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Spinning witch hazel into gold: Conn. town finds old-fashioned remedy is key to prosperity
Newspaper article from: The Boston Globe; 10/5/2009; ; 700+ words
; ...on Connecticut Route 66. This is witch hazel, hamamelis virginiana. It stands...natural ingredients, alcohol and witch hazel. More recently, a sister company...been producing and selling witch hazel - the ingredient - in bulk to hundreds...
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Winter and Witch Hazel; Sweetly-Scented Blossoms Brighten a Cold Day
Newspaper article from: The Washington Post; 1/26/1989; ; 700+ words
; ...People who grow a witch hazel shrub in their yard...acknowledge that the witch hazel is a rare exception...impressed with the witch hazel. For centuries dowsers...be smaller. The witch hazel is a gourmet...is that the witch hazel is hard to grow from...
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Wondrous Witch Hazel; Bloom and Perfume in the Midst of Winter
Newspaper article from: The Washington Post; 12/12/1996; ; 700+ words
; ...ought to consider planting a witch hazel. The shrub is exceptionally...neighbors to admire. The common witch hazel bursts into bloom in...exceptionally fragrant Chinese witch hazel (Hamamelis mollis) and Japanese witch hazel (Hamamelis japonica), is...
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 "Daily Herald (Arlington Heights, IL)")
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Witch hazel's flowers provide a delight in winter.(Home & Garden)
Newspaper article from: Daily Herald (Arlington Heights, IL); 2/20/2000; 700+ words
; If witch hazel's dainty flowers opened...The sight of a vernal witch hazel (Hamamelis vernalis) in...Even larger than vernal witch hazel, if often reaches 15...leaves fall from the witch hazel and surrounding trees and...
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Blooming Witch Hazel; A Harbinger of Spring When We Need It Most
Newspaper article from: The Washington Post; 2/29/1996; ; 700+ words
; ...Few plants are as obliging as the witch hazel, bursting into fragrant bloom when we need it most. The common witch hazel (Hamamelis virginiana) blooms...that one day soon Dix will find a witch hazel hybrid or two combining the best...
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WINTER-BLOOMING WITCH HAZEL CAN CAST A MOOD-ENHANCING SPELL
Newspaper article from: The Boston Globe; 2/20/2003; ; 700+ words
; ...CABIN FEVER EACH WINTER, PLANT A WITCH HAZEL THIS SPRING. YOU'LL PROBABLY...think it's a forsythia, but witch hazel's bright- yellow flowers appear...The country's leading expert on witch hazel, Tim Brotzman, sells 40 varieties...
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An American beauty: discover the power of witch hazel, in the landscape and in your medicine chest.(the herbalist)
Magazine article from: Country Living Gardener; 12/22/2003; ; 700+ words
; HOW WITCH HAZEL GOT ITS NAME While "witching" for water may sound spooky, the name "witch hazel" has nothing to do with the supernatural. In England, small trees (ash, elm, hazel) were cut, or coppiced, to encourage...
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One of Winter's Surprises.(witch hazel in winter gardens)(Brief Article)
Magazine article from: Country Living; 1/1/2001; ; 700+ words
; Witch hazel frilly, fragrant blooms create...virginiana, the American or common witch hazel, because the plant...been done with the English hazel. Another possibility is that...year. As a result of the witch hazel's exceptional qualities...
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Witch Hazel
Encyclopedia entry from: Gale Encyclopedia of Alternative Medicine
Witch hazel Description Witch hazel ( Hamamelis virginiana ) is a deciduous tree or shrub that is native...It flowers in the fall, producing vivid yellow flowers. Witch hazel is also known as hazel nut, snapping hazel, spotted alder, tobacco...
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witch hazel
Book article from: The Columbia Encyclopedia, Sixth Edition
witch hazel common name for some members...Asia. The American witch hazel ( H. virginiana ) is a fall...divining rod . The name "witch hazel" is applied also to...sometimes in chewing gum. Witch hazel is classified in the division...
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Hazel
Encyclopedia entry from: The Gale Encyclopedia of Science
...The Y-shaped forked branches of various species of hazel have long been used to find underground water by a method...drill a well. One of the common names of the American hazel is witch hazel and is presumably derived from the use of the species...
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hazel
Book article from: The Columbia Encyclopedia, Sixth Edition
...commerce. Nuts of the American hazel ( C. americana ) are often gathered but seldom sold. Winter hazel and witch hazel are not related to hazel. Hazel is classified in the division Magnoliophyta , class Magnoliopsida, order Fagales, family...
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witch elm
Book article from: The Concise Oxford Dictionary of English Etymology
witch elm, witch hazel see WYCH-ELM , WYCH HAZEL .
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