Plasma concentration and uterine and ovarian expressions of insulin-like growth factor-2 in dogs with cystic endometrial hyperplasia–pyometra

2021 ◽  
Author(s):  
Nilgün Gültiken ◽  
Murat Yarim ◽  
Gül Fatma Yarim ◽  
Mahmut Sözmen ◽  
Elvan Anadol ◽  
...  
Keyword(s):  
Plasma Concentration ◽  
Growth Factor ◽  
Endometrial Hyperplasia ◽  
Endocrine Cells ◽  
Inflammatory Process ◽  
Plasma Concentrations ◽  
Insulin Like Growth Factor ◽  
Healthy Dogs ◽  
Group 2 ◽  
Group 1

AbstractThe objective of this study was to investigate the plasma concentrations of insulin-like growth factor-2 (IGF-2) as well as its expression in the uterus and ovary of healthy dogs and those with cystic endometrial hyperplasia (CEH)–pyometra complex. Group 1 (n = 10) included bitches with open cervix pyometra, while Group 2 (n = 7) consisted of clinically healthy bitches in dioestrus. The number of IGF-2 immunopositive interstitial cells was significantly higher in Group 1, whereas in Group 2 there were only two cases in which a few cells were IGF-2 immunopositive. IGF-2 immunopositivity was observed in the endometrial glandular epithelium in both groups. Additionally, interstitial fibroblasts and macrophages in the endometrium were also positive in Group 1. The concentration of plasma IGF-2 was higher in Group 1 than in Group 2 (P < 0.05). The concentration was positively correlated with IGF-2 expression in the endometrial glands (r = 0.926; P < 0.001) in Group 1. However, a negative correlation was present between plasma IGF-2 concentration and IGF-2 expression in the interstitial endocrine cells of the ovary in Group 1 (r = −0.652; P < 0.05). The results suggest that IGF-2 plays an important role during the inflammatory process occurring in bitches with CEH–pyometra complex as well as in the endometrium of healthy bitches in dioestrus.

scholarly journals Variation in Plasma Concentration of Insulin-like Growth Factor-l and its Covariation with Liveweight in Mice

1987 ◽  
Vol 40 (3) ◽  
pp. 287 ◽  
Author(s):  
H T Blair ◽  
SN McCutcheon ◽  
DDS Mackenzie ◽  
PD Gluckman ◽  
JE Ormsby
Keyword(s):  
Genetic Variation ◽  
Plasma Concentration ◽  
Growth Factor ◽  
Litter Size ◽  
Genetic Factors ◽  
Plasma Concentrations ◽  
Early Age ◽  
Selection Experiment ◽  
Insulin Like Growth Factor ◽  
The Relationship

Three experiments were undertaken to examine the degree and causes of variation in plasma concentrations of insulin-like growth factor-l (IOF-I) in mice. The relationship between IOF-l concentrations and liveweight was also examined. In all three experiments, a number of non-genetic factors were found to contribute significantly to the variation in IOF-l concentrations, the most important of these being sex and litter size. In one experiment, where pups from 16 litters were cross-fostered to avoid the confounding of maternal and direct genetic effects, a heritability of 0'40 � 0�27 was estimated for plasma IOF-l concentration at 35 days of age. To examine further the existence of genetic variation in plasma concentrations of IOF-l and the genetic covariation between plasma IOF-l levels and other body traits, a selection experiment with mice has been initiated. Moderate to strong phenotypic correlations between IOF-l concentrations and weight at an early age have been found in all three experiments.

scholarly journals Plasma insulin-like growth factor-1 concentration in dogs with chronic enteropathies

2012 ◽  
Vol 51 (No. 1) ◽  
pp. 35-43
Author(s):  
Spichiger AC ◽  
K. Allenspach ◽  
Y. Zbinden ◽  
Doherr MG ◽  
S. Hiss ◽  
...  
Keyword(s):  
Growth Factor ◽  
Activity Index ◽  
Plasma Concentrations ◽  
Clinical Score ◽  
Insulin Like Growth Factor ◽  
Disease Group ◽  
Before And After ◽  
Chronic Enteropathies ◽  
Inflammatory Bowel ◽  
Healthy Dogs

Plasma concentrations of insulin-like growth factor (IGF)-1 were examined in dogs suffering from food-responsive diarrhea (group FRD) or inflammatory bowel disease (group IBD) before and after treatment and compared with IGF-1 values in healthy dogs (group C). Blood of 76 dogs was sampled (FRDbefore treatment, n = 23; IBD before treatment, n = 11; C, n = 42) and after treatment (FRD, n = 15; IBD, n= 8) with a hypoallergenic diet combined with (group IBD) or without prednisolone (group FRD). A clinical score (Canine IBD Activity Index = CIBDAI) was applied to judge the health status in all dogs. Plasma concentration of IGF-1, of total protein, albumin, glucose, urea, non-esterified fatty acids (NEFA), and of the acute phase protein haptoglobin was measured in all dogs. The CIBDAI scores decreased during the treatment period in FRD and IBD (P &lt; 0.05). IGF-1 concentrations were positively correlated with body weight (BW) (r<sub>sp</sub> = 0.65, P &lt; 0.001) and values of IGF-1 were therefore normalized with BW. IGF-1/BW ratios were lower in FRD and IBD before treatment than in C (P &lt; 0.01). <br />IGF-1/BW ratios increased in FRD (P &lt; 0.05) dogs during treatment. Plasma glucose concentration was lower in FRD dogs before treatment than in C (P &lt; 0.05), and NEFA concentrations were higher in FRDdogs before and after treatment than in C (P &lt; 0.001). Haptoglobin concentrations were higher in IBD dogs before and after treatment than in all other groups (P &lt; 0.05). In conclusion, chronic enteropathies reduce the plasma IGF-1 status in dogs. The increase of the IGF-1/BW ratio after treatment suggests that plasma IGF-1 concentration may help to judge the outcome of chronic enteropathies in dogs.

The galactopoietic effect of bovine growth hormone in goats is associated with increased concentrations of insulin-like growth factor-I in milk and mammary tissue

1991 ◽  
Vol 128 (3) ◽  
pp. 457-463 ◽  
Author(s):  
C. G. Prosser ◽  
C. Royle ◽  
I. R. Fleet ◽  
T. B. Mepham
Keyword(s):  
Growth Factor ◽  
Mammary Tissue ◽  
Insulin Like Growth Factor ◽  
Factor I ◽  
Lactating Goats ◽  
Significant Difference ◽  
Igf I ◽  
Growth Factor I ◽  
Group 2 ◽  
Group 1

ABSTRACT Lactating goats exhibiting widely divergent responses to short-term (4 days) treatment with bovine GH (bGH) were retrospectively divided into two groups based on the magnitude of this response. There was no difference between groups in terms of the pretreatment milk yield, but by day 4 of treatment milk secretion had increased by 4·99±2·5 (s.e.m.) ml/h (P > 0·05 compared with pretreatment) for group 1 and 22·9±2·4 ml/h (P< 0·001) for group 2. Plasma GH increased in both groups, but concentrations were significantly higher both before and during treatment in group 1 compared with group 2. Plasma concentrations of insulin-like growth factor-I (IGF-I) increased significantly during bGH treatment for both groups and there was no significant difference between the two until day 4 of treatment when levels of IGF-I in group 1 began to decline, whereas those from group 2 were maintained. Concentrations of IGF-I in milk from goats in group 1 were not significantly altered by GH administration, whereas those in goats in group 2 were increased by 40% (P < 0·01 compared with pretreatment). Levels of IGF-I in mammary secretory tissue from four animals from group 1 were not altered by bGH (2·8±0·2 and 2·77 ±0·08 nmol/kg tissue before and after treatment respectively), but were significantly (P < 0·05) increased in four animals from group 2 (2·80±0·2 and 9·9±1·1 nmol/kg tissue). Thus, it appears that the galactopoietic response in goats was associated with significantly lower levels of GH in plasma after 3 days of treatment and, more strikingly, greater amounts of IGF-I in milk and mammary tissue. This latter observation is consistent with the hypothesis that the effects of bGH on the mammary gland itself are mediated by IGF-I and that the availability of IGF-I to mammary tissue is an important component of the overall galactopoietic response to bGH. Journal of Endocrinology (1991) 128, 457–463

Plasma concentrations of insulin-like growth factor-I and insulin in the infant calf: ontogeny and influence of altered nutrition

1988 ◽  
Vol 119 (1) ◽  
pp. 43-50 ◽  
Author(s):  
B. H. Breier ◽  
P. D. Gluckman ◽  
J. J. Bass
Keyword(s):  
Birth Weight ◽  
Growth Factor ◽  
Plasma Insulin ◽  
Plasma Concentrations ◽  
Factor I ◽  
Igf I ◽  
Group 3 ◽  
Group 2 ◽  
Milk Feeding ◽  
Group 1

ABSTRACT The developmental pattern of plasma insulin-like growth factor-I (IGF-I) and insulin in calves subject to different patterns of weaning was investigated from birth until the age of 6 months. Fifteen male Friesian calves were fed on whole milk (10% of body weight per day) for the first 8 weeks after birth, then allocated into three balanced groups. Group 1 was weaned at 8 weeks; group 2 was weaned at 8 weeks, returned to milk-feeding at 13 weeks to be weaned again at the age of 16 weeks; group 3 was weaned at 12 weeks. After weaning the calves were fed on concentrates and lucerne hay. At birth, circulating concentrations of IGF-I correlated with birth weight (r = 0·78, P< 0·001). There was a significant (P<0·001) fall in plasma IGF-I from birth (40·3 ± 2·5 μg/l) until 5 weeks (23·8± 1·3 μg/l), and then a gradual (P<0·01) rise until week 8 (35·0 ± 2·2 μg/l). Weaning (groups 1 and 2 after week 8) caused a significant (P<0·01) decrease in plasma IGF-I (20·5 ± 1·9 μg/l); thereafter plasma levels of IGF-I rose gradually (P<0·01) in animals fed on concentrates. The milk-fed calves (group 3) showed a progressive increase in plasma IGF-I with age until they were weaned at 12 weeks (51·0 ± 3·4 μg/l); IGF-I levels then decreased to be similar to group 1 (32·5 ± 2·1 μg/l). When group 2 was returned to milk-feeding, plasma IGF-I concentrations increased to 58·2 ±3·8 μg/l within 4 days and then continued to rise gradually until decreasing upon weaning. The age-related increase in the plasma concentration of IGF-I after 6 weeks was parallel in milk- and concentrate-fed calves. Binding of 125I-labelled bovine GH to hepatic membranes of neonatal calves was low at birth (specific binding; 1·56 ±0·29% n=3). Somatotrophic binding was apparent at 6 weeks (6·43 ±0·42%, n = 3) and increased (9·2± 1·1%, n=3) at the age of 12 weeks. Thus the early postnatal changes in plasma IGF-I may reflect the transition from GH-independent to GH-dependent IGF-I secretion. Plasma concentrations of insulin at birth correlated with IGF-I (r = 0·54, P<0·05). However, regression analysis suggested no effect of insulin on birth weight independent of IGF-I. Plasma insulin levels rose gradually until weaning and thereafter were significantly (P<0·01) higher in the milk- than concentratefed calves. Major changes in plasma concentrations of IGF-I related to monogastric (milk feeding) or ruminant (concentrate feeding) nutrition of the young calf are demonstrated. They may be mediated through changing plasma insulin concentrations. An age-dependent prepubertal rise in plasma IGF-I apparently independent of nutritional factors commenced with the appearance of functional somatotrophic receptors in the liver. J. Endocr. (1988) 119, 43–50

Plasma concentrations of insulin-like growth factor, triiodothyronine, thyroxine, and insulin in cows during different physiological states

2016 ◽  
Vol 3 (3) ◽  
pp. 17-21
Author(s):  
M. Simonov ◽  
V. Vlizlo ◽  
I. Petruh
Keyword(s):  
Plasma Concentration ◽  
Growth Factor ◽  
Postpartum Period ◽  
Plasma Concentrations ◽  
Enzyme Linked Immunosorbent Assay ◽  
Strong Positive Correlation ◽  
Insulin Like Growth Factor ◽  
Correlation Dependence ◽  
Somatomedin C ◽  
Energetic Balance

Aim. To investigate the plasma concentrations of insulin-like growth factor (IGF, somatomedin C), triiodothyronine, thyroxine and insulin in cows during prepartum and postpartum periods. Methods. Enzyme- linked immunosorbent assay, clinical and statistical methods. Results. It was demonstrated that the plasma concentration of IGF, triiodothyronine, thyroxine, and insulin is lower in postpartum cows compared to the interlactation ones. Strong positive correlation dependence (r = 0.7) between the levels of thyroxine and somatomedin C was found on the 2 nd –4 th day after calving. The plasma concentration of all the investigated hormones increased in cows on the 10-14 th day of postpartum period and remained stable until days 30–40. Strong correlation dependence between the levels of somatomedin C and insulin (r = 0.7) was found on the 10- 14 th day of the postpartum period. Conclusions. It was determined that somatomedin C is one of the energetic balance regulators in dairy cows.

scholarly journals Influence of the level of insulin-like growth factor-I and endostatin in blood serum on the lipid profile indicators in patients with acute myocardial infarction and obesity

2019 ◽  
Vol 85 (4) ◽  
pp. 48-54
Author(s):  
D.V. Martovitskyi
Keyword(s):  
Myocardial Infarction ◽  
Growth Factor ◽  
Blood Serum ◽  
Insulin Like Growth Factor ◽  
Elisa Kit ◽  
Factor I ◽  
Igf I ◽  
Growth Factor I ◽  
Group 2 ◽  
Group 1

The levels of insulin-like growth factor I and endostatin in the blood serum and their relationship with lipid profile were investigated in patients with acute myocardial infarction and obesity. The object of the study was 105 patients. All patients were divided into two groups: group 1 consisted of patients with AMI and concomitant obesity (n=60), group 2 consisted of AMI patients without obesity (n=45). The control group consisted of 20 practically healthy people. The average age of patients in group 1 was (67.44±1.34) years old, and in group 2 was (66.85±1.72) years old. The content of IGF-I and endostatin was determined by the enzyme immunoassay. To determine IGF-I, an enzyme-linked immunosorbent assay was used using the Human Insulin like growth factor-I ELISA Kit (MEDIAGNOST, Germany). The endostatin level was determined by the enzyme immunoassay using the Endostatin Elisa Kit (BIOMEDICA, Austria). The biochemical study included the determination of the level of TC and HDL, carried out by the peroxidase method using a set of reagents «Cholesterol Liquicolor» from «Human» (Germany) in blood serum stabilized with heparin. The obtained correlations indicate that an increase in the level of endostatin in the blood serum is significantly associated with an increase in the levels of TC, LDL, TG, CA and a decrease in HDL. Also, reliable data were obtained on the feedback between IGF-I and the level of TC, LDL, TG and CA, as well as a direct relationship between the indicators of IGF-I and HDL. The data obtained indicate that endostatin as a marker of angiogenesis is associated with obesity and dyslipidemia, and also indicate the anti-inflammatory and antioxidant properties of IGF-I under conditions of high autoimmune activity.

scholarly journals Amber therapy effect on the inflammatory process severity in purulent wounds in dogs

2020 ◽  
Vol 23 (11) ◽  
pp. 22-27
Author(s):  
Alona Hierdieva ◽  
Dmytro Bilyi
Keyword(s):  
Blood Plasma ◽  
Succinic Acid ◽  
Inflammatory Process ◽  
Control Group ◽  
Purulent Wounds ◽  
Therapy Effect ◽  
Healthy Dogs ◽  
Group 2 ◽  
Experimental Group ◽  
Group 1

Studying the amount of fibrinogen in the blood plasma of dogs is essential in determining the severity of the inflammatory process. In this regard, the aim of this work was to establish the level of fibrinogen in animals with the purulent-inflammatory process. The studies were performed by spectrophotometric method according to the generally accepted method. During the studies, the content of fibrinogen in the blood plasma of clinically healthy dogs was determined before medical care and during the wound process on the 3rd, 7th, 10th and 14th days of treatment. The results of the study on dogs with purulent skin wounds revel that the amount of fibrinogen before treatment was 2 times higher (p<0.001) compared with clinically healthy animals. On the 3rd day of the study, the content of fibrinogen in blood plasma in the animals of experimental group 1 and experimental group 2 was, respectively, 1.6 (p<0.001) and 1.5 (p<0.001) times higher than in the clinically healthy animals; the amount of fibrinogen was 1.7 times (p<0.001) higher in the control group of animals than in the clinically healthy dogs. On the 7th day of treatment, the level of fibrinogen in animals of the experimental group 1 was 1.2 times (p<0,01) higher than in clinically healthy dogs, while in the experimental group 2 its content was 1.1 times (p<0.05) higher. In contrast, it was 1.4 times (p<0.001) higher the control group dogs than in clinically healthy animals. Studies have shown that the administration of succinic acid and intravenous 1.5% solution of reamberin, a drug based on succinic acid, restores the level of fibrinogen in the plasma of dogs with purulent wounds on the 10th day of the wound process, compared with intravenous introduction of 5% glucose solution. The best therapeutic effect was obtained in the group of animals treated with 1.5% solution of reamberin

Optimal Propofol Plasma Concentration during Upper Gastrointestinal Endoscopy in Young, Middle-aged, and Elderly Patients

2000 ◽  
Vol 93 (3) ◽  
pp. 662-669 ◽  
Author(s):  
Tomiei Kazama ◽  
Ken Takeuchi ◽  
Kazuyuki Ikeda ◽  
Takehiko Ikeda ◽  
Mutsuhito Kikura ◽  
...  
Keyword(s):  
Plasma Concentrations ◽  
Age Groups ◽  
Young Patients ◽  
Upper Gastrointestinal Endoscopy ◽  
Hemodynamic Responses ◽  
Verbal Command ◽  
Group 3 ◽  
Group 2 ◽  
Somatic Response ◽  
Group 1

Background Suitable propofol plasma concentrations during gastroscopy have not been determined for suppressing somatic and hemodynamic responses in different age groups. Methods Propofol sedation at target plasma concentrations from 0.5 to 4.0 microgram/ml were performed randomly in three groups of patients (23 per group) who were undergoing elective outpatient gastroscopy: ages 17-49 yr (group 1), 50-69 yr (group 2), and 70-89 yr (group 3). Plasma propofol concentration in which 50% of patients do not respond to these different stimuli were determined by logistic regression: verbal command (Cp50ls), somatic response to gastroscopy (Cp50endo), and gag response to gastroscopy (Cp50gag). Hemodynamic responses were also investigated in the different age groups. Results Cp50ls concentrations were 2.23 microgram/ml (group 1), 1.75 microgram/ml (group 2), and 1.40 microgram/ml (group 3). The Cp50endo values in groups 1 and 2 were 2.87 and 2.34 microgram/ml, respectively, which were significantly higher than their respective Cp50ls values. Cp50endo value in group 3 was 1.64 microgram/ml, which was close to its Cp50ls value. Because of a high degree of interpatient variability, Cp50gag could not be defined. Systolic blood pressure response decreased with increasing propofol concentrations. Conclusions The authors determined the propofol concentration necessary for gastroscopy and showed that increasing age reduces it. Propofol concentration that suppresses somatic response induces loss of consciousness in almost all young patients.

Influence of insulin-like growth factor-binding protein-2 on plasma clearance and transfer of insulin-like growth factors-I and -II from plasma into mammary-derived lymph and milk of goats

1996 ◽  
Vol 150 (1) ◽  
pp. 121-127 ◽  
Author(s):  
C G Prosser ◽  
J Schwander
Keyword(s):  
Growth Factors ◽  
Growth Factor ◽  
Plasma Clearance ◽  
Binding Protein ◽  
Plasma Concentrations ◽  
Insulin Like Growth Factor ◽  
Factor Binding ◽  
Lactating Goats ◽  
Igf I ◽  
Insulin Like Growth Factors

Abstract Plasma clearance of insulin-like growth factors-I and -II (IGF-I and -II) and insulin-like growth factor-binding protein-2 (IGFBP-2) from lactating goats (n=4) was determined following a single intravenous injection of the corresponding 125I-labelled human protein. Transfer of these proteins out of the vascular space was monitored by their subsequent appearance in mammary-derived lymph and milk. Clearance of 125I-IGFBP-2 from circulation was 0·37 ± 0·06 ml/min/kg, which is markedly greater than that of 125I-IGF-I or -II (0·11 ± and 0·12 ± 0·01 ml/min/kg respectively). This was also reflected in longer elimination half-lives for IGF-I (353 ± 6 min) and -II (254 ± 8 min) compared with IGFBP-2 (110 ± 9 min). Three hours after injection of the 125I-labelled protein, the plasma:lymph ratio of trichloroacetic acid-precipitable radioactivity was 1·54 ±0·04, 3·3 ±0·6 and 4·1 ±0·4 for IGFBP-2, IGF-I and -II respectively. The form of 125I-IGFBP-2 in lymph was not different from that of plasma. Elevation of plasma concentrations of IGFBP-2 by its intravenous infusion significantly decreased plasma half-life of both IGF-I and -II (251 ± 8 and 198 ±7 min respectively). Although the amount and rate of transfer of IGF into mammary-derived lymph was decreased slightly by IGFBP-2, concentrations eventually obtained were not different from control. However, secretion of IGFs into milk was significantly reduced by IGFBP-2, particularly in the case of IGF-I. These results are consistent with the ability of all three compounds to cross the vascular endothelium intact and of IGFBP-2 to decrease the uptake of IGF by mammary epithelium and subsequent secretion into milk. IGFBP-2 may well have acted to target plasma IGF towards non-mammary tissues, thus explaining the more rapid plasma clearance of IGFs in the presence of elevated IGFBP-2. Journal of Endocrinology (1996) 150, 121–127

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