First report of Epistylis unioi Gong 1986 (Sessilida: Epistylididae) infecting fry of Pelteobagrus fulvidraco in Hubei, China

Zootaxa ◽  
2012 ◽  
Vol 3556 (1) ◽  
pp. 80 ◽  
Author(s):  
MING LI ◽  
WEIDONG LI ◽  
XIANPING GE ◽  
CHONG WANG ◽  
LIN ZHANG ◽  
...  

The peritrich Epistylis unioi Gong, 1986 was collected from fry of Pelteobagrus fulvidraco during parasite surveys at Hon-ghu Lake Fish Hatchery, Hubei Province, central China in May 2010 and redescribed. Some revisions were done basedon live, silver-impregnated, and SEM specimens. The zooid is elongated and somewhat vase-like in shape, measuring56–88 × 22–38 µm in vivo. A single contractile vacuole is apically located slightly below the peristome disc. The macro-nucleus is horseshoe-shaped, always transversely situated at the foreside of the body. Haplokinety (H) and polykinety (Po)complete one and one-half circuits on the peristome before entering the infundibulum, with a distal kinetal fragment pres-ent at the distal end. Silverline system consists of 37–45 pellicular striations between peristome and aboral trochal band(TB), and of 26–33 between TB and scopula. Colony is asymmetrically and dichotomously branched, usually with onlytwo levels of branches. In addition, the telotrochs of E. unioi were also observed and its structures were described herein.Besides, obvious skin lesions caused by the ringlike base of E. unioi were detected and the relationship between these epizooites and their hosts was briefly discussed as well.

1987 ◽  
Author(s):  
G Celia ◽  
M Prosdocimi ◽  
A A Sasahara

Anti-heparin substances, like PF4 or PS, have been studied largely in reference to their ability to neutralize the anticoagulant activity of heparin. On the other hand, few data are available concerning the relationship between GAGs and anti-heparin proteins clearance. We studied the action of PS on human PF4 kinetics in anesthetized rabbits pre-treated with heparin (H, 1000 I.U.), heparan sulphate (HS, 30 mg) and derma tan sulphate (DS, 30 mg). PF4 (given at a dose of 45 μgAg) disappearance reflected its different affinity for the GAGs, with the following half lives (min): control 2.09±0.28, H 14.80±1.47, HS 10.90±1.91, DS 6.87±0.68. Moreover, circulating PF4 (ng/ml) at 1 min was as follows: control 109±8, H 873±134, HS 751±34 and DS 473±15. In another group of H pre-treated rabbits, a bolus injection of PS (10 or 20 mg) caused an immediate disappearance in th.e circulating plasma PF4, from 900±23 ng/ml (1 min after PF4) to 75±11 ng/ml (1 min after 10 mg PS). However, a subsequent H injection 10 min after PS induced a peak release of PF4 (520±21 ng/ml). In a further group of animals pre-treated with HS, the interaction between PS and PF4 was similar to that observed after H treatment. In the last group, pre-treated with DS, the interaction between PF4 and PS was also similar, however, unexpectedly, when 20 mg of PS were given a subsequent bolus of H did not produce any increase of circulating PF4We suggest that PS displaces PF4 from its binding sites on H or HS, thus allowing its uptake by the storage sites in the body, from where it can be harvested again after the subsequent H administration. In the presence of DS again PS is able to displace PF4, however the remaining excess of PS could neutralize the subsequent H injection, thus rendering it unable to induce PF4 release.


1975 ◽  
Vol 26 (2) ◽  
pp. 355 ◽  
Author(s):  
TW Searle ◽  
NMcC Graham

Wether sheep (4 months old) were held at 20 kg liveweight by restricted feeding for either 4 or 6 months and then fed ad libitum. Body composition (total water, fat and protein) was estimated monthly from tritiated water (TOH) space measured in vivo, and on three occasions representative animals were slaughtered, minced and analysed. Composition at any given body weight was compared with that previously determined for animals grown without restriction (controls). Sheep slaughtered at the end of the period of weight stasis contained less protein and more water than the controls but contained a similar weight of fat. Previously derived prediction equations estimated water correctly from TOH space in these undernourished sheep, but protein was overestimated by 0.38 kg (17% of the mean) and fat was underestimated by 0.19 kg (10% of the mean). The body composition of animals slaughtered after partial or complete recovery of weight for age was normal for their weight and predictions were accurate. The sequential estimates of composition indicated that although the relationship between fat and weight differed between individuals, at any given body weight above 32 kg compensating animals and controls had a similar composition. *Part I, Aust. J. Agric. Res., 26: 343 (1975).


Author(s):  
P. M. Stockdale

Abstract A description is provided for Epidermophyton floccosum. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Primarily a pathogen of man (causing mycoses). Also recorded from dog (RMVM 6, 1920) and mouse (RMVM 6, 639). Animal inoculation is rarely successful; the guineapig (RMVM 14, 804), monkey (RMVM 1, 182) and the chorio-allantoic membrane of the hen's egg (RMVM 2, 1676; 4, 82) have been infected experimentally. DISEASE: Ringworm (dermatophytosis, tinea). The groin (tinea cruris, eczema marginatum, dobie itch) and feet (tinea pedis) are most frequently infected. The body (tinea corporis), hands (tinea manuum) and nails (onychomycosis, tinea unguium) may also be infected. Infections of the scalp (tinea capitis) are rare and the hair is never invaded in vivo. Skin lesions are scaling and erythematous, well-marginated with minute vesicopapules in the border. GEOGRAPHICAL DISTRIBUTION: Worldwide.


1967 ◽  
Vol 13 (1) ◽  
pp. 93-97 ◽  
Author(s):  
Edward F. Harrison ◽  
C. Bruce Cropp

When tested in three experimental staphylococcal infections—acute peritonitis in mice, mouse leg edema produced by a localized infection, and dermal rabbit ear infections—lysostaphin demonstrated in vivo chemotherapeutic activity. Doses of less than 0.007 mg/kg (intraperitoneally) and 0.5 mg/kg (subcutaneously) of lysostaphin prevented death in 50% of the mice with acute staphylococcal peritonitis. A single intramuscular dose (0.15 mg/mouse) of lysostaphin suppressed the swelling produced by the injection of staphylococci into mouse legs to 50% of that produced in untreated animals. Lysostaphin (0.05% by weight) incorporated into gels and applied topically eradicated staphylococci from experimental skin lesions on the ears of rabbits. Lysostaphin was absorbed and transported by the body fluids from the point of injection to the site of the infection producing a desirable antistaphylococcal effect.


2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Elżbieta Miller ◽  
Agnieszka Morel ◽  
Luciano Saso ◽  
Joanna Saluk

Accumulating data shows that oxidative stress plays a crucial role in neurodegenerative disorders. The literature data indicate thatin vivoor postmortem cerebrospinal fluid and brain tissue levels of F2-isoprostanes (F2-IsoPs) especially F4-neuroprotanes (F4-NPs) are significantly increased in some neurodegenerative diseases: multiple sclerosis, Alzheimer's disease, Huntington's disease, and Creutzfeldt-Jakob disease. Central nervous system is the most metabolically active organ of the body characterized by high requirement for oxygen and relatively low antioxidative activity, what makes neurons and glia highly susceptible to destruction by reactive oxygen/nitrogen species and neurodegeneration. The discovery of F2-IsoPs and F4-NPs as markers of lipid peroxidation caused by the free radicals has opened up new areas of investigation regarding the role of oxidative stress in the pathogenesis of human neurodegenerative diseases. This review focuses on the relationship between F2-IsoPs and F4-NPs as biomarkers of oxidative stress and neurodegenerative diseases. We summarize the knowledge of these novel biomarkers of oxidative stress and the advantages of monitoring their formation to better define the involvement of oxidative stress in neurological diseases.


2020 ◽  
Vol 3 ◽  
Author(s):  
Zachary Lett ◽  
Shelby Skidmore ◽  
Nathan Alves

Background  Microplastic (MP) pollution has been a growing concern in recent decades due to the proliferation and ease of manufacturing regarding plastics products.  Polystyrene (PS), being one the most abundant plastic polymers, is the subject of frequent studies due to its ubiquitous nature.  Trophic transfer, inhalation, and dermal exposure are all routes by which humans may be exposed to MPs every day.  There are undoubtedly more physiological consequences than we are currently aware of; however, many of these concerns are beginning to be better understood.    Their distribution throughout the body dictates the potential threats to human health.  The cardiovascular system is potentially the most susceptible, as it is the first medium the MPs are exposed to after entering the body.  Consequently, the cardiovascular system and thrombus generation is one such area where much recent attention has been allocated.    Project Methods  Data was gathered from a variety of well-established research articles to review the relationship between PS exposure and thrombus formation in vivo.  Additionally, this review looks at documented effects of MPs on platelet aggregation and discusses mechanisms through which these pathologies take place.    Results  PS plastics have varying impact on thrombus formation contingent upon both surface modifications and particle size.  Aminated PS appears to be the most potent regarding the generation of thrombi in vivo.  Literature on platelet aggregation is more consistent, with most studies revealing that carboxylated and aminated forms enhance aggregation while unmodified PS had insignificant effects.  Conclusion/Potential Impact  There is substantial ambiguity surrounding this field and more studies need to be conducted to reveal the full extent of pathologies caused by PS microplastics.  Most studies have been done with marine life, which may not accurately reflect MPs effects in humans.  Further research will allow us to begin developing viable solutions for those most susceptible to cardiovascular diseases. 


1998 ◽  
Vol 44 (6) ◽  
pp. 49-54
Author(s):  
A. N. Karachentsev ◽  
G. Ya. Schwartz ◽  
V. G. Kukes

In recent years, increasing attention of specialists has been attracted by the problems of the relationship between cardiovascular pathology and the state of the endocrine system of the body, in particular the functioning of the gonads. Clinical observations indicate that cardiovascular diseases, including MI, can quite often form on a certain “unfavorable” endocrine basis, and their development is largely determined by gender [5, 68, 72]. hormonal function of the ovaries is significantly lower than in men of the same age, with the onset of menopause, this difference between the sexes disappears [3, 68]. The unequal orientation of the action of estrogen hormones on the cardiovascular system of women and supper, while in the former under conditions of estrogen deficiency their substitution is protective, in men, the use of female sex hormones increases the risk of cardiovascular disease [3, 5, 8, 68]. In vitro and in vivo significant coronary dilator reactions and modulating the effect with respect to the paradoxical coronary spastic effects of atherosclerotically altered blood vessels of the heart was observed with the administration of 17p-estradiol only to postmenopausal women, but not to men [22, 51].


2016 ◽  
Vol 60 (1) ◽  
Author(s):  
Aleksandra Zarek

Introduction: The aim of this work was to examine the relationship between body concept and personality, and sociodemographic, physical and medical factors in dermatological patients with skin lesions localized in socially visible body areas.Material and methods: The study was carried out in 160 dermatological patients (80 females and 80 males) aged 30–60 years (mean = 48.26; SD = 9.15) whose skin lesions were localized in the area of the face/head and/or hands. Body image was measured with the Body Image Questionnaire based on the Body Cathexis Scale of P.F. Secord and S.J. Jourard. The self concept was measured with the Adjective Check List of H.G. Gough and A.B. Heilbrun, and The Wheel Questionnaire of Ben Shalit.Conclusions: Body self image of dermatological patients was influenced mostly by personality traits.


1973 ◽  
Vol 74 (2) ◽  
pp. 307-315 ◽  
Author(s):  
P. Vecsei ◽  
K. H. Gless ◽  
M. Winter ◽  
M. Hanka-Postozky

ABSTRACT Aldosterone antibodies were raised in sheep immunized with a complex of D-aldosterone-21-hemisuccinate and bovine serum albumin. The intravenous injection of these antibodies into rats caused a delay in the disappearance rate of tritiated aldosterone from the blood. The degree of this effect depends on the body weight of the animals, on the amount of the antiserum given, and on the interval between the injection of antibodies and that of labelled aldosterone. After the injection of aldosterone antibodies and the tritiated hormone, the plasma concentration of labelled aldosterone was related to the rate of secretion of the hormone. When aldosterone secretion was low, subsequent to high sodium intake, or abolished after adrenalectomy, the plasma concentration of tritiated aldosterone was higher than in the control rats. Stimulation of aldosterone secretion by furosemide or ACTH, or administration of cold aldosterone resulted in a decrease in the plasma concentration of the labelled hormone. It is suggested that the relationship between the amount of free aldosterone in the "inner pool" and the plasma concentration of tritiated aldosterone is the consequence of a competition of labelled and unlabelled hormone for the binding capacity of the antibody.


Author(s):  
M.J. Murphy ◽  
R.R. Price ◽  
J.C. Sloman

The in vitro human tumor cloning assay originally described by Salmon and Hamburger has been applied recently to the investigation of differential anti-tumor drug sensitivities over a broad range of human neoplasms. A major problem in the acceptance of this technique has been the question of the relationship between the cultured cells and the original patient tumor, i.e., whether the colonies that develop derive from the neoplasm or from some other cell type within the initial cell population. A study of the ultrastructural morphology of the cultured cells vs. patient tumor has therefore been undertaken to resolve this question. Direct correlation was assured by division of a common tumor mass at surgical resection, one biopsy being fixed for TEM studies, the second being rapidly transported to the laboratory for culture.


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