The mussel fauna of the Maumee River [by H. Walton Clark and Charles B. Wilson]

Clark, H. W.; Wilson, Charles Branch

doi:10.5962/bhl.title.34507

Cited by 3 publications

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“…Compelling evidence now suggests that ET-1 may play a role in the physiology and pathophysiology of the foeto-placental circulation in man. Indeed, plasma levels of ET-1 are elevated in preeclampsia as compared with normal pregnancy (Mastrogiannis et al, 1991;Nova et al, 1991;Clark et al, 1992). Furthermore, high levels of ET-1 are closely related with biological markers of renal impairment in preeclampsia (Clark et al, 1992).…”

Section: (M)mentioning

confidence: 99%

“…Indeed, plasma levels of ET-1 are elevated in preeclampsia as compared with normal pregnancy (Mastrogiannis et al, 1991;Nova et al, 1991;Clark et al, 1992). Furthermore, high levels of ET-1 are closely related with biological markers of renal impairment in preeclampsia (Clark et al, 1992). ET-1 levels also appear to rise late in gestation in normal pregnant women (Clark et al, 1992).…”

Section: (M)mentioning

confidence: 99%

“…Furthermore, high levels of ET-1 are closely related with biological markers of renal impairment in preeclampsia (Clark et al, 1992). ET-1 levels also appear to rise late in gestation in normal pregnant women (Clark et al, 1992). It is still uncertain as to whether increased ET-1 levels could indirectly (through the release of NO and EDHF) contribute to the decrease in vascular resistance, which normally occurs during late gestation (Greiss, 1966;Peeters et al, 1980).…”

Section: (M)mentioning

confidence: 99%

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Endothelial modulation of vasoconstrictor responses to endothelin‐1 in human placental stem villi small arteries

Sabry

Mondon

Lévy

et al. 1995

British J Pharmacology

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1 The aim of this study was to assess the role of endothelial cells in the modulation of vasocontractile responses to endothelin-1 (ET-1) of human placental vasculature.2 Isolated stem villi small arteries (diameter = 170-250 gm) were obtained from healthy parturients who underwent caesarean surgery during the 39th week of pregnancy for cephalo-pelvic disproportion. Isometric tension was measured in vascular rings mounted in a myograph system and challenged with ET-1 (10-12 to 10-6 M). 3 The vasocontractile response to ET-1 was significantly (P<0.0001) increased in endothelial-denuded (active tension= 1156 + 214 mN mm-') as compared with endothelial-preserved vascular rings (active tension = 458 ± 48 mN mm-1). This difference was significantly (P< 0.05) but only partly abolished by the NO synthase inhibitor N1'-nitro-L-arginine (L-NOARG, 10' M).4 In endothelial-preserved rings submaximally precontracted with 5-hydroxytryptamine (10-6 M), ET-1 (10-12 to 10-9 M) induced dose-dependent relaxation (maximum relaxation = 70 + 7%) at 10-9 M, which was followed, at higher doses (10-8 to 10-6 M), by a contraction. In contrast, no relaxation was seen in endothelial-denuded rings. The relaxation in rings with endothelium was significantly (P<0.001) reduced by L-NOARG (10-4 M). Moreover, it was totally abolished by combined pretreatment with L-NOARG (10-4 M) and the sulphonylurea glibenclamide (10' M). 5 In conclusion, endothelial cells modulate the vascular responses to ET-1 through the release of NO and a substance acting on the ATP-sensitive K+ channel of smooth muscle of stem villi small arteries from healthy parturients.

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Section: (M)mentioning

confidence: 99%

Section: (M)mentioning

confidence: 99%

Section: (M)mentioning

confidence: 99%

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Endothelial modulation of vasoconstrictor responses to endothelin‐1 in human placental stem villi small arteries

Sabry

Mondon

Lévy

et al. 1995

British J Pharmacology

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“…In its course of 90 miles to the Wabash River, the Big Vermilion River falls about 320 feet or 31^feet per mile. It thus has a greater fall than either the Kankakee, which is 300 miles long and has a fall of 250 feet, or less than a foot per mile, or the Maumee River, which has a length of 150 miles and a fall of 154 feet, or about a foot per mile (Clark and Wilson, 1912).…”

Section: Introductionmentioning

confidence: 99%

“…In view of the rapid depletion of the supply in the larger rivers (Mississippi, Ohio, Illinois) it becomes necessary to search the smaller streams to replenish the older beds. The Maumee and the Kankakee (Wilson and Clark, 1912), as well as the Illinois (Danglade, 1914), have recently been rather carefully surveyed with interesting and important results.…”

Section: Introductionmentioning

confidence: 99%

The molluscan fauna of the Big Vermilion river, Illinois, with special reference to its modification as the result of pollution by sewage and manufacturing wastes, with fifteen plates and eleven tables, by Frank Collins Baker.

Baker¹

1922

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Explanation of Plates 105! FAUNA OF BIG VERMILION RIVER-BAKER 109] FAUNA OF BIG VERMILION RIVER-BAKER 11 ILLINOIS BIOLOGICAL MONOGRAPHS [114 Oligochaeta. These aquatic earthworms were abundant in places along the shore of Salt Fork. Sparganophilus eiseni Smith occurred in abundance in the mud on the margin of Salt Fork at Homer Park, and immature worm of this genus, as well as cocoons, were collected from near the bridge below St. Joseph to the bridge above Sidney. A single specimen of Belodrilus chloroticus (Savigny) was collected in the Salt Fork near St. Joseph. This species has not heretofore been recorded from Illinois and its occurrence at this locality adds another species of earthworm to the State list (see Smith, 1915:557). Limnodrilus was abundant in bottom sludges from the Salt Fork, from Urbana to near St. Joseph. Tubifex was also found, but not as abundantly. Hirudinea. Two species of leeches occurred in several places in Salt Fork, below St. Joseph. They were nowhere abundant. The two species are: Erpobdella punctata (Leidy) Moore and Placobdella rugosa (Verrill) Moore. CRUSTACEA Three species of crayfish (Cambarus) were determined by Professor Smith from the material collected in Salt Fork and other parts of the Big Vermilion River. The most abundant was Cambarus propinquus Girard, which was found commonly from bench mark 655 to the Big Vermilion River below Middle Fork. It is especially abundant in the latter place where an individual may be found under every piece of stone. The same species was abundant in Stony Creek and in the Salt Fork near Muncie. Cambarus blandingi acutus Girard, both young and adult, occurred in the upper parts of Salt Fork, but preferred a mud bottom rather than a rock bottom. Cambarus immunis Hagen was collected only at bench mark 655 where it was rare. It will be noted that Cambarus is first met with about two miles below St. Joseph and twelve miles from Urbana. The only ones seen here were dead. Living crayfish begin to appear in abundance about six miles below St. Joseph or sixteen miles below Urbana. Crayfish and mussels both become common or abundant at about the same time, viz., fourteen and sixteen miles below the source of sewage pollution at Urbana. This agreement in distribution indicates the close relationship between these otherwise diverse groups of animals, as regards resistence to septic conditions, neither being able to thrive under poUutional conditions of the bottom. AQUATIC INSECTS Aquatic insects are doubtless abundant during spring and early summer in the lower parts of Salt Fork and in the Big Vermilion River. A few species were collected incidentally at some of the molluscan stations. These are listed in Table I, in the order of their occurrence in the stream. 65 * New septic tanks have been installed at the Champaign sewage disposal plant on Salt Fork and a portion of the sewage is well treated before it enters the canal. ** Data for the sewage conditions, stream flow, chemical analyses, etc., of the Salt Fork are taken from an unpublished report o...

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Pathology and infectious agents of unionid mussels: A primer for pathologists in disease surveillance and investigation of mortality events

et al. 2023

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Freshwater mussels are one of the most imperiled groups of organisms in the world, and more than 30 species have gone extinct in the last century. While habitat alteration and destruction have contributed to the declines, the role of disease in mortality events is unclear. In an effort to involve veterinary pathologists in disease surveillance and the investigation of freshwater mussel mortality events, we provide information on the conservation status of unionids, sample collection and processing techniques, and unique and confounding anatomical and physiological differences. We review the published accounts of pathology and infectious agents described in freshwater mussels including neoplasms, viruses, bacteria, fungi, fungal-like agents, ciliated protists, Aspidogastrea, Digenea, Nematoda, Acari, Diptera, and Odonata. Of the identified infectious agents, a single viral disease, Hyriopsis cumingii plague disease, that occurs only in cultured mussels is known to cause high mortality. Parasites including ciliates, trematodes, nematodes, mites, and insects may decrease host fitness, but are not known to cause mortality. Many of the published reports identify infectious agents at the light or ultrastructural microscopy level with no lesion or molecular characterization. Although metagenomic analyses provide sequence information for infectious agents, studies often fail to link the agents to tissue changes at the light or ultrastructural level or confirm their role in disease. Pathologists can bridge this gap between identification of infectious agents and confirmation of disease, participate in disease surveillance to ensure successful propagation programs necessary to restore decimated populations, and investigate mussel mortality events to document pathology and identify causality.

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The mussel fauna of the Maumee River [by H. Walton Clark and Charles B. Wilson]

Cited by 3 publications

References 0 publications

Endothelial modulation of vasoconstrictor responses to endothelin‐1 in human placental stem villi small arteries

Endothelial modulation of vasoconstrictor responses to endothelin‐1 in human placental stem villi small arteries

The molluscan fauna of the Big Vermilion river, Illinois, with special reference to its modification as the result of pollution by sewage and manufacturing wastes, with fifteen plates and eleven tables, by Frank Collins Baker.

Pathology and infectious agents of unionid mussels: A primer for pathologists in disease surveillance and investigation of mortality events

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