Ograniczanie wyników

Czasopisma help
Autorzy help
Lata help
Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 32

Liczba wyników na stronie
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 2 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych:  haptoglobina
help Sortuj według:

help Ogranicz wyniki do:
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 2 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
The experiments were carried out on mice (Balb/c, 6 weeks old) exposed to restraint stress. Animals were restrained for 12 h per day at nighttime and released at daytime for 2 consecutive days. Some mice were immunized i.p. immediately before the stress with 4xl08 sheep red blood cell (SRBC). Sodium diethyldithiocarbamate (DTC, 20 mg/kg) was administered i.p. twice e.g. 4 and 2 days prior to restraint stress. Calf thymus extract (TFX, 10 mg/kg) was injected i.p. four times at 24 h intervals prior to exposure to stress. It was found that restraint stress led to thymic atrophy which was reflected in the decreased total number of thymocytes, weight index of the thymus, and caused depletion of thymocytes. In addition, it was found that restraint stress reduced humoral response to SRBC which was reflected in the decreased number of splenocytes producing anti-SRBC antibodies (PFC) and serum haemagglutynin titres (19S+7S and 7S). The total number of spleen cells and weight index of the spleen in stressed mice were also diminished. The suppressing effect of stress was observed for 10 days. Pretreatment with DTC or TFX partially counteracted the immunosuppresive effects of restraint stress. Administration of DTC or TFX retarded the stress-induced thymic atrophy and promoted the restoration of the synthesis of anti-SRBC haemagglutinins and the number of PFC. Regeneration of the thymus gland occured more rapidly in stressed mice previously treated with TFX. On the other hand, the stronger effect of restoring the humoral response to SRBC was observed for DTC.
The main aim of the study was to determine the usefulness of haptoglobin in the early postpartum period by monitoring the therapy of retained fetal membranes in cows. 52 cows were included in the study and divided into four testing groups of cows with retention of fetal membranes after their manual removal or natural separation, as well as one group without retention of placenta. The concentrations of haptoglobin were performed as an adaptation of the Jones-Mould method and compared between all groups of cows in twofold blood samplings at 3 and 10 days after calving. Haptoglobin that was estimated in the early postpartum period was demonstrated as a good marker for monitoring the results of different methods of therapy of fetal membrane retention in cows.
Celem badań było określenie poziomu dobrostanu krów i owiec na podstawie koncentracji haptoglobiny w surowicy krwi. Materiałem badanym była surowica krwi 100 krów i 120 owiec. Koncentrację haptoglobiny (Hp, mg·ml⁻¹) określono metodą immunodyfuzji radialnej. Koncentracja haptoglobiny u krów wynosiła 0,379 mg·ml⁻¹ z odchyleniami od 0,005 do 2,302 mg·ml⁻¹ przy współczynniku zmienności 155,93%. W surowicy krwi owiec średnia zawartość Hp wynosiła 0,518 mg·ml⁻¹ przy wartości minimalnej wynoszącej 0,048 mg·ml⁻¹ i maksymalnej 3,421 mg·ml⁻¹, oraz współczynniku zmienności 147,29%.
The influence of unspecific immunostimulation on the level of haptoglobin (Hp) in the sera of female polar foxes during a reproductive period has been determined. A statistically significant increase of the Hp level in sera of female foxes before immunostimulation resulted from a developing infectious inflammatory process in the reproductive tract. The serum level of Hp in sera of the females stimulated unspeciflcally is close to physiological values. However, in sera of the females from a control group the concentration of Hp persisted on a high level during the entire period of the experiment. The evaluation of the state of health of animals on the basis of the concentration of serum Hp decreases the risk of the transmission of diseases in farms of breeding foxes and hence decreases economical losses. Determining the concentration of Hp in sera of female polar foxes may be a useful criterion for the evaluation of their state of health during the reproduction period and efficacy of the unspecific immunostimulation used.
The aim of the study was to examine chosen parameters of milk and blood taken from bitches suffering from mastitis and to evaluate the possibility of its use as an additional method in mastitis diagnosis. During the experiment 34 bitches of different breeds in postpartum lactation and during lactation connected with pseudopregnancy were used. Somatic cell count, pH and Cl levels were measured in the milk. Besides hematological examination, the concentration of haptoglobin was investigated in the blood. An elevation of somatic cells and increased levels of Cl were discovered in the milk from bitches suffering from mastitis. Furthermore the elevation of milk pH in the healthy pseudopregnant bitches and females with mastitis was determined. The inflammation of the mammary glands was connected with leukocytosis and elevated levels of haptoglobin in the blood.
Pierwsza strona wyników Pięć stron wyników wstecz Poprzednia strona wyników Strona / 2 Następna strona wyników Pięć stron wyników wprzód Ostatnia strona wyników
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.