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Later in 1998, Dr. Yuan-Tsong Chen and colleagues at Duke University, using the enzyme produced in
|
129_183
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Chinese Hamster Ovary cells demonstrated for the first time that the enzyme can clear the glycogen
|
129_184
|
and improved the muscle function in Pompe disease quail. The results of the work at Duke were
|
129_185
|
impressive with one treated bird recovering to the point of being able to fly again.
|
129_186
|
This was followed by production of clinical grade alpha-glucosidase in Chinese hamster ovary (CHO)
|
129_187
|
cells and in the milk of transgenic rabbits. This work eventually culminated in the start of
|
129_188
|
clinical trials with the first clinical trial including 4 babies receiving enzyme from rabbit milk
|
129_189
|
at Erasmus MC Sophia Children's Hospital and 3 babies receiving enzyme grown in CHO cells at Duke
|
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|
University in 1999.
|
129_191
|
The currently approved Myozyme is manufactured by Genzyme Corp. in Cambridge, Massachusetts. Its
|
129_192
|
development was a complex process. Genzyme first partnered with Pharming Group NV who had managed
|
129_193
|
to produce acid alpha-glucosidase from the milk of transgenic rabbits. They also partnered with a
|
129_194
|
second group based at Duke University using Chinese hamster ovary cells. In 2001, Genzyme acquired
|
129_195
|
Novazyme which was also working on this enzyme. Genzyme also had its own product (Myozyme) grown in
|
129_196
|
CHO cells under development. In November 2001, Genzyme chief executive Henri Termeer organised a
|
129_197
|
systematic comparison of the various potential drugs in a mouse model of Pompe disease. It was
|
129_198
|
found that the Duke enzyme was the most efficacious, followed by Myozyme. However, due to easier
|
129_199
|
manufacture of Myozyme, work on the other products was discontinued.
|
129_200
|
Funding for research in this field was in part provided by the Muscular Dystrophy Association and
|
129_201
|
the Acid Maltase Deficiency Association in the US, and by the Association of Glycogen Storage
|
129_202
|
Disorders in the UK, as well as the International Pompe Association.
|
129_203
|
John Crowley became involved in the fund-raising efforts in 1998 after two of his children were
|
129_204
|
diagnosed with Pompe. He joined the company Novazyme in 1999, which was working on enzyme
|
129_205
|
replacement treatment for Pompe. Novazyme was sold to Genzyme in 2001 for over US$100 million. The
|
129_206
|
2010 film Extraordinary Measures is based on Crowley's search for a cure.
|
129_207
|
As of 2019, many biomedical companies are developing Gene therapy in hopes of helping the body
|
129_208
|
create alpha-glucosidase on its own.
|
129_209
|
References
External links
|
129_210
|
GeneReview/NIH/UW entry on Glycogen Storage Disease Type II (Pompe Disease)
|
129_211
|
Understanding Pompe Disease - US National Institute of Arthritis and Musculoskeletal and Skin
|
129_212
|
Diseases
|
129_213
|
Autosomal recessive disorders
Hepatology
Inborn errors of carbohydrate metabolism
|
129_214
|
Lysosomal storage diseases
Rare diseases
|
130_0
|
The Dumaw Creek Site is an archaeological site designated 20OA5, located along Dumaw Creek northeast
|
130_1
|
of Pentwater, Michigan, that was the location of a 17th-century village and cemetery. It is one of
|
130_2
|
the youngest pre-historic sites in Michigan, dating to the terminal Late Woodland Period just
|
130_3
|
prior to European contact. It was listed on the National Register of Historic Places in 1972.
|
130_4
|
History
|
130_5
|
The village that once stood at this location was likely inhabited in the early part of the 17th
|
130_6
|
century (about 1605–1620, according to Quimby). The people occupying the village are thought to be
|
130_7
|
the precursors of the modern Potawatomi people. It is likely that they were uprooted from this
|
130_8
|
location soon after Samuel de Champlain's 1615 visit to the region, as warring tribes spilled into
|
130_9
|
Michigan. Were they the Potawatomi people, they eventually made their way by the 1640s to the
|
130_10
|
region around Sault Ste. Marie.
|
130_11
|
Meanwhile, white pine grew up in the plain where the village stood. The pine was lumbered in
|
130_12
|
1870-1880, after which the land was gradually converted to agricultural use, and was farmed as late
|
130_13
|
as 1930. In the 1940s, oil was discovered in the area, and wells were installed.
|
130_14
|
The Dumaw Creek site was originally discovered in 1915 by a farmer, Christoph "Carl" Schrumpf
|
130_15
|
1854–1949, who was pulling a stump from his field. Schrumpf discovered 18 skeletons and various
|
130_16
|
artifacts in 1915–16. These artifacts were catalogued by the Museum of Anthropology at the
|
130_17
|
University of Michigan in 1924, but the artifacts and records were not generally well known by
|
130_18
|
archaeologists. Schrumpf eventually sold the collection to a private dealer, and they eventually
|
130_19
|
made their way, sans any identifying data, to George I. Quimby at the Field Museum in 1959.
|
130_20
|
Quimby eventually tracked the source of the artifacts to the Dumaw Creek site, and in 1960-62 did
|
130_21
|
some summer surface collection there. He also located other artifacts already dug from the site.
|
130_22
|
Description
|
130_23
|
The Dumaw Creek site is located on a sandy plain near Dumaw Creek, a tributary of the Pentwater
|
130_24
|
River, at a site not easily accessible by canoe. The creek itself runs through a small valley
|
130_25
|
about beneath the level of the plain. The site, covering , was used as a village and burial
|
130_26
|
ground.
|
130_27
|
The village is thought to have been a semi-permanent settlement with dome-shaped wigwams. The
|
130_28
|
people hunted and fished, and grew corn and pumpkins.
|
130_29
|
Artifacts
|
130_30
|
Artifacts and features found at the site include burials, faunal remains, stone tools, bone tools,
|
130_31
|
red ocher/mineral paint (used for ceremonial coloring), copper artifacts, shell artifacts, tobacco
|
130_32
|
pipes, animal skins, and vegetal and textile remains.
|
130_33
|
At least nineteen, and perhaps as many as 55 skeletons were removed from burial sites in the Dumaw
|
130_34
|
Creek site. The bodies were wrapped in furs and buried with stone implements and copper beads.
|
130_35
|
The stone implements found include arrowheads, knives, and scraping tools of chipped flint and axes
|
130_36
|
of a hard, granular stone. Quimby reports that 99% of the stone tools were small triangular points
|
130_37
|
or arrowheads, aka Madison points, indicative of a Late Woodland period placement. There were also
|
130_38
|
a considerable number of copper artifacts found at the site. Many were large bead-like tubes of
|
130_39
|
copper known as hair pipes, which were worn as hair ornaments. There were also other, generally
|
130_40
|
smaller copper beads, conical decorations, and copper plaques, as well as shell beads and pendants.
|
130_41
|
Carved stone pipe bowls were also found, as well as animal skins and pottery.
|
130_42
|
The pottery is described by Quimby as grit-tempered vessels with round-bottomed, globular forms
|
130_43
|
with broad orifices and slightly flaring rims. The rim edges are often scalloped or crimped. The
|
130_44
|
vessel pictured below with a scalloped rim has been compared to the Moccasin Bluff Scalloped type
|
130_45
|
from the Moccasin Bluff site on the St. Joseph River in southwestern Michigan. This pottery type
|
130_46
|
is diagnostic of a Late Woodland period temporal placement, just before European contact. There was
|
130_47
|
also a shell pendant with a "weeping eye" design as shown below. This motif has been seen in other
|
130_48
|
Late Prehistoric sites in the Great Lakes area.
|
130_49
|
References
|
130_50
|
Buildings and structures in Oceana County, Michigan
|
130_51
|
Archaeological sites on the National Register of Historic Places in Michigan
|
130_52
|
National Register of Historic Places in Oceana County, Michigan
Potawatomi
Late Woodland period
|
131_0
|
Dag Ivar Wirén (15 October 1905 – 19 April 1986) was a Swedish composer.
|
131_1
|
Life
|
131_2
|
Wirén was born at Striberg near Nora. His father had a roller blind factory, and there were
|
131_3
|
various musical activities in the family home; he took piano lessons, and was a student at the
|
131_4
|
Karolinska school in Örebro, and played the bass drum and celesta in the town orchestra.
|
131_5
|
Wirén studied at the Stockholm conservatory from 1926 to 1931, which gave him much exposure to
|
131_6
|
music from all periods; hearing Arthur Honegger's oratorio King David in 1927 was an important
|
131_7
|
experience.
|
131_8
|
In 1932 he won the state stipend and used the award money to continue his studies in Paris, where
|
131_9
|
he lived from 1931 to 1934. While there, he studied composition under the Russian composer Leonid
|
131_10
|
Sabaneyev, though he admitted later that his endless attendance of concerts, and not his tutoring
|
131_11
|
with Sabaneyev, had the greater impact on his own work. In Paris he met Igor Stravinsky (as well as
|
131_12
|
his compatriot Gösta Nystroem) and was exposed to the music of Stravinsky, Sergei Prokofiev and the
|
131_13
|
French composers of Les Six.
|
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