Blood Serum Levels of PCBs and PCDFs in Yucheng Women 14 Years After Exposure to a Toxic Rice Oil

1997 ◽  
Vol 33 (1) ◽  
pp. 104-108 ◽  
Author(s):  
Y. L. Guo ◽  
J. J. Ryan ◽  
B. P. Y. Lau ◽  
M. L. Yu ◽  
C. C. Hsu
Keyword(s):  
Blood Serum ◽  
Serum Levels ◽  
Rice Oil

Blood serum levels of PCDFs and PCBs in Yu-Cheng children peri-natally exposed to a toxic rice oil

Chemosphere ◽  
1994 ◽  
Vol 29 (6) ◽  
pp. 1263-1278 ◽  
Author(s):  
John J. Ryan ◽  
Chen-Chin Hsu ◽  
Mark J. Boyle ◽  
Yue-Ling Leon Guo
Keyword(s):  
Blood Serum ◽  
Serum Levels ◽  
Rice Oil

HYPOTHALAMIC-PITUITARY-TESTICULAR SYSTEM AND ADRENOCORTICAL FUNCTION

1976 ◽  
Vol 81 (1) ◽  
pp. 198-207 ◽  
Author(s):  
H. L. Verjans ◽  
K. B. Eik-Nes
Keyword(s):  
Adrenal Gland ◽  
Blood Serum ◽  
Adult Male ◽  
Serum Levels ◽  
Male Rats ◽  
Intramuscular Administration ◽  
Adrenocortical Function ◽  
Male Rat ◽  
Pituitary Secretion ◽  
Slight Elevation

ABSTRACT Effect of intramuscular administration of ACTH or dexamethasone on blood serum levels of testosterone, LH and FSH was examined in intact and castrated, adult, male rats. Six IU ACTH or 1 mg dexamethasone were given daily for 7 days. Corticotrophin treatment had no influence on circulating testosterone, LH and FSH in intact or castrated male rats. Dexamethasone administration resulted in a slight elevation of serum FSH in intact animals but not in castrates. LH and testosterone remained normal in both intact and castrated animals injected with dexamethasone. Under our conditions of study the secretions from the adrenal gland appear to be insignificant for the regulation of pituitary secretion of gonadotrophins in the male rat.

scholarly journals Effect of different types of stress on adrenal gland parameters and adrenal hormones in the blood serum of male Wistar rats

2009 ◽  
Vol 61 (2) ◽  
pp. 187-194 ◽  
Author(s):  
M. Adzic ◽  
Ana Djordjevic ◽  
Jelena Djordjevic ◽  
Ana Niciforovic ◽  
Marija Radojcic
Keyword(s):  
Blood Serum ◽  
Wistar Rats ◽  
Adrenal Glands ◽  
Acute Stress ◽  
Serum Levels ◽  
Combined Stress ◽  
Adrenal Hormones ◽  
General Adaptation ◽  
Different Types ◽  
Male Wistar Rats

In the present study, we examined gross changes in the mass of whole adrenal glands and that of the adrenal cortex and medulla in mature male Wistar rats subjected to three different stress types: acute, chronic, and combined, i.e., chronic followed by acute stress. These parameters were correlated with adrenal activity as judged from serum levels of corticosterone and catecholamine, respectively, as well as with serum levels of ACTH and glucose. Under all three conditions, we observed bilaterally asymmetric and stress-type-independent hypertrophy of whole adrenals, as well as adrenal cortices and medullas. Under acute and combined stress, adrenal hypertrophy was followed by increase of adrenal hormones in the blood serum. However, under chronic stress, both cortical and medullar activities as judged from low or unaltered levels of the respective hormones and glucose were compromised and disconnected from the input signal of ACTH. Since all of the studied adrenal activities could be restored by subsequent acute stress, it is concluded that chronic isolation can be viewed as partly maladaptive stress with characteristics resembling stress resistance rather than the stress exhaustion stage of the general adaptation syndrome.

scholarly journals IMMUNOREGULATION OF BLOOD SERUM ESTRADIOL AND PROGESTERONE LEVELS IN POSTMENOPAUSAL WOMEN

2019 ◽  
Vol 21 (5) ◽  
pp. 869-876
Author(s):  
A. N. Glushkov ◽  
E. G. Polenok ◽  
S. A. Mun ◽  
L. A. Gordeeva ◽  
V. A. Lutsenko ◽  
...  
Keyword(s):  
Blood Serum ◽  
Human Blood ◽  
Solid Phase ◽  
Biological Effects ◽  
Serum Levels ◽  
Human Blood Serum ◽  
Breast Cancer Patients ◽  
Specific Antibodies ◽  
Healthy Women ◽  
Antibody Levels

Specific antibodies against estradiol (Es) and progesterone (Pg) are known to modulate blood serum concentrations of these hormones and their biological effects after immunization of animals. It was suggested that specific IgA-Es and IgA-Pg could influence on Es and Pg levels in human blood serum. The purpose of this study was to identify the suggested correlations between serum Es and Pg and specific IgA-Es and IgA-Pg in postmenopausal healthy women (HW) and breast cancer patients (BCP). The serum levels of Es, Pg, IgA-Es and IgA-Pg were studied in 226 HW and 633 BCP by means of solid-phase immunoassay. The following results were obtained. The levels of Es in BCP (0.25 nmol/l) were higher than in HW (0.16; р < 0.0001). The levels of Pg were lower (0.79 vs 0.87; р < 0.0001), and individual Pg/Es ratios were lower (3.19 vs 6.64; р < 0.0001). Individual IgA-Pg/IgA-Es ratios correlated with decrease of Es (rs = -0.15; p = 0.029), with increase in Pg (rs = 0.38; р < 0.0001), and with increased Pg/Es ratio (rs = 0.29; р < 0.0001) in healthy women. Similar correlations were determined in BCP (correspondingly: rs = -0.14, р < 0.001; rs = 0.1, р = 0.009; rs = 0.15, р < 0.0001). The decrease of Es and increase of Pg and Pg/Es in BCP were less significant than in HW: the a quotients in regression у = ах+b (y = hormones levels and x = antibodies levels) in BCP were 3 to 4-fold lower than in HW. These peciliarities of interrelations between hormones and specific antibody levels were revealed only in ER+/PR+ BCP but not in ER+/PR- and ER-/PR- BCP. In conclusion, we have confirmed a suggestion about participation of specific antibodies in regulation of steroids levels in human blood serum. The immune regulation of hormonal status was weakened in BCP.

THE ANTILIPAEMIC ACTIVITY OF LAMINARIN SULPHATE

1958 ◽  
Vol 36 (1) ◽  
pp. 261-268 ◽  
Author(s):  
Sailen Mookerjea ◽  
W. W. Hawkins
Keyword(s):  
Blood Serum ◽  
Electrophoretic Mobility ◽  
Serum Levels ◽  
Parenteral Administration ◽  
Clear Relationship

When rabbits were fed a diet containing 1% cholesterol the blood serum levels of neutral fat, phospholipid, free and esterified cholesterol, and β-lipoprotein were greatly increased. After the parenteral administration of laminarin sulphate or of heparin, all these were decreased, and the electrophoretic mobility of the β-lipoprotein was increased. Laminarin sulphate showed qualitatively the same effect as heparin on the hyperlipaemia. There was no clear relationship between the magnitude of dosage of either compound and the degree of its antilipaemic effect.

Positive association between experimental cortisol increases and cage-measures of feeding behavior in wild-caught gerbils

2021 ◽  
pp. 1-9
Author(s):  
Franklin Sargunaraj ◽  
Justin R. St. Juliana ◽  
Cynthia J. Downs ◽  
Irina S. Khokhlova ◽  
Lee Koren ◽  
...  
Keyword(s):  
Blood Serum ◽  
Feeding Behavior ◽  
Hormone Level ◽  
Positive Association ◽  
Serum Levels ◽  
Enzyme Linked Immunosorbent Assay ◽  
Time Period ◽  
Cortisol Levels ◽  
And Behavior ◽  
The Relationship

Abstract Glucocorticoid hormone levels vary within a forager based upon environmental stressors such as illumination and riskier habitats, and a forager’s response to environmental variables depends upon its glucocorticoid levels. Here, we report on a laboratory experiment in which we manipulated cortisol in Allenbyi’s gerbils (Gerbillus andersoni allenbyi) to test the relationship between cortisol and behavior. We then quantified the resulting blood cortisol levels and feeding behavior in gerbils. Thirty gerbils were injected with 21-day slow-release cortisol pellets drawn from 5 different dosages. We quantified the physiological response to pellet implantation in gerbils by measuring cortisol level in blood serum using ELISA (Enzyme Linked Immunosorbent Assay). We fed gerbils daily by mixing millet seeds into the sand inside rodent cages and measured the remaining seeds the following day to quantify feeding efforts. Some evidence supports that subcutaneous supplementation of glucocorticoids (GCs) in the gerbils led to higher blood serum levels. Cortisol levels varied according to time period of measurement. Gerbils that received lower dosages consumed most of the food presented to them when compared to those receiving the highest doses. In this manner, we delineate a pattern on cortisol hormone level variation over time following dosing and consequences in feeding behavior.

scholarly journals Effect of flavonoids morin; quercetin and nicotinic acid on lipid metabolism of rats experimentally fed with triton

2001 ◽  
Vol 44 (3) ◽  
pp. 263-267 ◽  
Author(s):  
Kelly Fabiane Santos Ricardo ◽  
Tânia Toledo de Oliveira ◽  
Tanus Jorge Nagem ◽  
Aloisio da Silva Pinto ◽  
Maria Goreti Almeida Oliveira ◽  
...  
Keyword(s):  
Body Weight ◽  
Lipid Metabolism ◽  
Nicotinic Acid ◽  
Blood Serum ◽  
Coronary Disease ◽  
Blood Circulation ◽  
Intraperitoneal Administration ◽  
Serum Levels ◽  
Flavonoid Compounds ◽  
Coronary Diseases

Atherosclerosis is a coronary disease where deposition of lipids in the arteries leads to problems of blood circulation. The present work evaluates the action of the flavonoids morin, quercetin and nicotinic acid isolated in association on lipid metabolism in hyperlipidemic rats. Blood serum levels cholesterol, cholesterol-HDL, and triacylglycerids have been analysed following the intraperitoneal administration of the flavonoid compounds dissolved in propyleneglycol by in doses of 5mg/kg body weight. Quercetin presented the largest percentual reduction of cholesterol. The best results for cholesterol-HDL have been obtained with-nicotinic acid alone while morin-nicotinic acid combination showed the best triacylglycerols results. Results showed that flavonoids could be beneficious in the treatment of coronary diseases.

Blood Serum Levels of Amino-Terminal Pro-C-Type Natriuretic Peptide in Patients with Systemic Sclerosis

2009 ◽  
Vol 51 (2) ◽  
pp. 83-87 ◽  
Author(s):  
Anna Olewicz-Gawlik ◽  
Aleksandra Danczak-Pazdrowska ◽  
Kamilla Klama ◽  
Wojciech Silny ◽  
Janusz Prokop ◽  
...  
Keyword(s):  
Systemic Sclerosis ◽  
Blood Serum ◽  
Natriuretic Peptide ◽  
Serum Levels ◽  
Amino Terminal
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