Wyniki wyszukiwania

1

The influence of nitric oxide on the contractile activity of the isolated porcine ovarian and uterine arteries

100%

Barszczewska B., Jaroszewski J. J.

Polish Journal of Veterinary Sciences

|

2004

|

tom 07

|

nr 2

2

Variations in ovarian arteries in fetuses and adults

100%

Machnicki A., Grzybiak M.

Folia Morphologica

|

1999

|

tom 58

|

nr 2

The present studies were caried out on 80 female fetuses and adults, aged 20 to 28 weeks and 18 to 90 years, respectively. Attention was paid to the place of origin of ovarian arteries from the aorta or renal artery, the location of these vessels in relation to the trunk of inferior vena cava, and to their ovarian artery courses were identified, and subsequently the discovered variations of basic types were described.

3

Uptake, uptake and release of 3H-noradrenaline in ovarian artery and in subovarian veno-arterial network of pigs during the ovarian cycle

100%

Dynarowicz I., Pirus T., Trapkowski T.

Archivum Veterinarium Polonicum

|

1994

|

tom 34

|

nr 3-4

4

NPY: its occurrence and relevance in the female reproductive system

84%

Markiewicz W., Jaroszewski J. J., Bossowska A., Majewski M.

Folia Histochemica et Cytobiologica

|

2003

|

tom 41

|

nr 4

5

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Local effect of progesterone infusion into ovarian artery on activin A and inhibin alpha-subunit secretion during the middle luteal phase in gilts

67%

Wasowska B., Stefanczyk-Krzymowska S.

Polish Journal of Veterinary Sciences

|

2010

|

tom 13

|

nr 1

97-104

The present study was undertaken to elucidate whether an increased, but physiological, amount of progesterone (P4) supplied to the porcine corpus luteum affects luteal secretion of activin A and inhibin a-subunit (Inha) in freely moving gilts. On day 9 of the estrous cycle (EC), both ovarian arteries and both ovarian veins of gilts (n=5) were cannulated. Progesterone was infused into the right ovarian arteries in gilts on days 10, 11 and 12 of the EC at a rate adequate to its physiological retrograde transfer found during the middle luteal phase of the EC. The P4 infusion rate was 0.62 μg/min (day 10), 2x0.62 μg/min (day 11) and 3x0.62 μg/min (day 12). The left ovarian arteries were infused with saline (control). Blood samples were collected from both ovarian veins on days 10-12 of the EC before and after P4 or saline infusion. The mean plasma activin A level in the ovarian vein ipsilateral to the P4-infused ovary was higher (PcO.OOOl) on days 10-12 of the EC than this found in the contralateral ovarian vein. The level of activin A in the ovarian vein ipsilataral to the infusion of P4 was higher on days 11 (PcO.Ol) and 12 (P<0.0001) and tended to be higher (P<0.07) on day 10 of the EC than this in contralateral ovarian vein. The level of Inha in the ovarian vein ipsilateral to the P4-infused ovary on days 10-12 of the EC was not significantly different (P>0.05) than this found in the contralateral ovarian vein. The results of the present study indicate that a local elevation of P4 concentration in blood supplying the ovary during the middle luteal phase of the porcine EC affects ovarian secretion of activin A. The effect of P4 on the secretion of activin A suggested the existence of a short regulatory loop of a positive feedback between P4 being retrogradely transferred into the ovary and the secretion of this peptide.

6

Contractile effect of PGF2alpha and PGE2 on isolated branches of uterine and ovarian artery in different days of estrous cycle and early pregnancy in pigs

67%

Skipor J., Pikulinska M., Stefanczyk-Krzymowska S.

Polish Journal of Veterinary Sciences

|

2010

|

tom 13

|

nr 4

The contractile effects of PGF₂α (3 × 10⁻⁶ to 10⁻⁴ M) and PGE₂ (10⁻⁷ to 10⁻⁵ M) were examined on isolated branches of ovarian artery (OA) and extramyometrial branches of uterine artery (UA) collected from pigs in the luteal (day 10-12) and follicular phase (day 17-20) of the estrous cycle, and during early pregnancy (day 10-12). Strong contraction was demonstrated in both arteries during all investigated periods in response to PGF2α, which was significantly higher (P < 0.01) than to PGE₂, being negligible in the follicular phase. In UA, the effective dose of PGF₂α (ED50) amounted 7.9 × 10⁻⁶ M and 6.3 × 10⁻⁶ M in the luteal and follicular phase, and 5.0 × 10⁻⁶ M in early pregnancy. ED50 for PGE₂ reached 5.0 × 10⁻⁷ M in the luteal phase, and 4.1 × 10⁻⁷ M in early pregnancy. For both prostaglandins, the contraction was much stronger (P < 0.01) in OA than in UA branches. In OA, the ED50 for PGF₂α was 1.2 × 10⁻⁵ M in the luteal phase and was significantly higher (P < 0.05) than in the follicular phase (3.1 × 10⁻⁶ M) and early pregnancy (2.7 × 10⁻⁶ M). ED50 for PGE2 amounted 7.3 × 10⁻⁷ M in the luteal phase and 1.7 × 10⁻⁷ M in early pregnancy. Studies showed the influence of the estrous cycle and early pregnancy on OA branches sensitivity to the contractile effect of PGF₂α and the lack of this effect on UA branches, and the influence of the estrous cycle on UA and OA branch contraction in response to PGE2.

7

Histochemical localization of NADPH-d-positive structures in bovine uterine and ovarian arteries during the oestrous cycle and early pregnancy

67%

Jaroszewski J. J., Barszczewska B., Wojtkiewicz J., Majewski M., Timmermans J.-P.

Folia Histochemica et Cytobiologica

|

2002

|

tom 40

|

nr 2

8

The distribution and influence of calcitonin gene-related peptide [CGRP] on the perfusion pressure in the isolated ovarian artery in the pig

67%

Markiewicz W., Jaroszewski J. J., Barszczewska B., Maslanka T., Majewski M.

Folia Morphologica

|

2004

|

tom 63

|

nr 1

A moderate number of delicate CGRP-immunoreactive (CGRP-IR) varicose nerve terminals were found at the adventitia-media border of the sexually mature porcine ovarian artery by means of a routine single immunolabelling technique. Additionally, a pharmacological analysis was performed of the function fulfilled by α-CGRP and its C-terminal fragment (Tyr27)α-CGRP(27-37) in the porcine isolated ovarian artery, collected on days 8–13 of the oestrous cycle. It was shown that a-CGRP (10⁻⁸ M) caused a decrease in the perfusion pressure of the porcine isolated ovarian artery of 16% (p < 0.05), while (Tyr27)α-CGRP(27-37), added at the same concentration, reduced perfusion pressure by 13% (p > 0.05). Thus, we concluded that α-CGRP released from perivascular terminals may cause relaxation of the ovarian artery and, furthermore, that the potency of this action is dependent on the length of the chain of this peptide produced during the deactivation of the molecule by tissue proteases.

9

Aktywnosc monoaminooksydazy w szyszynce, w podwzgorzu i w przysadce oraz w tetnicach macicznej i jajnikowej swin w przebiegu cyklu plciowego

59%

Dynarowicz I., Orzel A., Szurminski M.

Acta Academiae Agriculturae ac Technicae Olstenensis. Veterinaria

|

1993

|

tom 21

267-276

W celu poznania udziału monoaminooksydazy (МАО) w procesie regulacji cyklu płciowego, w szyszynce, w lejku podwzgórza, w przysadce nerwowej i gruczołowej oraz w tętnicy macicznej i w t. jajnikowej świń oznaczano aktywność (Akt) całkowitą МАО, a także Akt jej podtypów A i В w 1—2., 13.-14. i 16.—18. dniu cyklu płciowego. Oznaczano także w surowicy krwi Akt МАО oraz stężenia progesteronu (P) i estradiolu (E). Stwierdzono, że Akt МАО i jej podtypów w szyszynce, w lejku podwzgórza, w przysadce i w t. macicznej były znacznie niższe w fazie lutealnej niż w pozostałych fazach cyklu. Zmiany Akt МАО w przebiegu cyklu były w tych tkankach skorelowane ujemnie ze zmianami stężeń P, a dodatnio ze zmianami stosunków stężeń E/P. We krwi zmiany Akt МАО były skorelowane ujemnie ze zmianami stężeń E i stosunku stężeń E/P, a dodatnio ze zmianami stężeń P. W t. jajnikowej natomiast Akt МАО i jej podtypów była znacznie niższa w 1.—2. dniu niż w pozostałych fazach cyklu, a ponadto nie zmieniała się wraz ze zmianami stężeń P, E ani zmianami stosunku E/P. Akt МАО regulowana wpływem hormonów jajnikowych jest jednym z ogniw regulacji aktywności czynnościowej szyszynki, podwzgórza i przysadki oraz regulacji aktywności układu adrenergicznego naczyń narządu rodnego.

Ograniczanie wyników

The influence of nitric oxide on the contractile activity of the isolated porcine ovarian and uterine arteries

Variations in ovarian arteries in fetuses and adults

Uptake, uptake and release of 3H-noradrenaline in ovarian artery and in subovarian veno-arterial network of pigs during the ovarian cycle

NPY: its occurrence and relevance in the female reproductive system

Local effect of progesterone infusion into ovarian artery on activin A and inhibin alpha-subunit secretion during the middle luteal phase in gilts

Contractile effect of PGF2alpha and PGE2 on isolated branches of uterine and ovarian artery in different days of estrous cycle and early pregnancy in pigs

Histochemical localization of NADPH-d-positive structures in bovine uterine and ovarian arteries during the oestrous cycle and early pregnancy

The distribution and influence of calcitonin gene-related peptide [CGRP] on the perfusion pressure in the isolated ovarian artery in the pig

Aktywnosc monoaminooksydazy w szyszynce, w podwzgorzu i w przysadce oraz w tetnicach macicznej i jajnikowej swin w przebiegu cyklu plciowego