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001-es BibID:	BIBFORM008849
Első szerző:	Börzsei Rita
Cím:	Presence of pituitary adenylate cyclase activating polypeptide-38 in human plasma and milk / Rita Borzsei, Laszlo Mark, Andrea Tamas, Terez Bagoly, Csaba Bay, Katalin Csanaky, Eszter Banki, Peter Kiss, Alexandra Vaczy, Gabriella Horvath, Jozsef Nemeth, Edit Szauer, Zsuzsanna Helyes, Dora Reglodi
Dátum:	2009
ISSN:	0804-4643 (Print)
Megjegyzések:	Pituitary adenylate cyclase activating polypeptide (PACAP) is a pleiotropic and multifunctional neuropeptide widely distributed throughout the body. It is involved in the regulation of various physiological and pathophysiological processes, such as reproduction, thermoregulation, motor activity, brain development, neuronal survival, inflammation and pain. Since little is known about its distribution in humans, our aim was to examine PACAP-38 in human plasma. Furthermore, based on the presence of vasoactive intestinal peptide, structurally the closest to PACAP, in milk and PACAP and its receptors in the mammary gland, our aim was to study PACAP-38 in human milk.Design and methods: The presence of PACAP-38 was determined by mass spectrometry in plasma samples from healthy male and female volunteers (age: 20-40), as well as in plasma and milk samples from lactating women (age: 20-35). PACAP concentration was measured with a specific and sensitive RIA. Results: Our results revealed that PACAP-38 is present in human plasma, its concentration is relatively stable in healthy volunteers and it is not significantly altered by gender, age, food intake or hormonal cycle in females. However, PACAP-38 plasma levels significantly increased in lactating women having 1-6 month-old babies. Moreover, this study is the first which provides evidence for the presence of PACAP-38 in the human milk with levels 5-20-fold greater in the milk whey than in the respective plasma samples. Conclusions: We found PACAP-38 in human plasma and its increase during the first 6 months of the lactation period. A prominent, nearly 10-fold higher concentration of this peptide was detected in human milk. Based on the literature, several important actions of milk-derived PACAP-38 can be suggested such as mammary gland proliferation, nutrient transfer as well as regulation of growth/differentiation of certain tissues of the neonates. The novelty of the present descriptive data provides a basis for further investigations on the mechanism of PACAP-38 secretion in human milk and its functional significance.
Tárgyszavak:	Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban PACAP-38 human plasma, human milk
Megjelenés:	European Journal of Endocrinology. - 160 : 4 (2009), p. 561-565. -
További szerzők:	Márk László (1956-) (belgyógyász, kardiológus) Tamás Andrea (Idegtudomány) (Pécs) Bagoly Teréz Bay Csaba Csanaky Katalin Bánki Eszter Kiss Péter Váczy Alexandra Horváth Gabriella Németh József (1954-) (vegyész, analitikus) Szauer Edit Helyes Zsuzsanna Reglődi Dóra (Idegtudományok)
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001-es BibID:	BIBFORM031294
Első szerző:	Brubel Réka
Cím:	Investigation of pituitary adenylate cyclase activating polypeptide in human gynecological and other biological fluids by using MALDI TOF mass spectrometry. / Brubel R., Reglodi D., Jambor E., Koppan M., Varnagy A., Biro Z., Kiss P., Gaal V., Bodis J., Bay Cs., Veszpremi B., Tamas A., Nemeth J., Mark L.
Dátum:	2011
Megjegyzések:	Pituitary adenylate cyclase activating polypeptide (PACAP) is a multifunctional and pleiotropic neuropeptide. PACAP hasdiverse effects in the endocrine system, among others, it plays important roles in oogenesis, implantation and development ofthe nervous system.However, it is not knownwhether PACAP is present in the fluids of the human reproductive organs. The aimof the present study was to determine, by means of mass spectrometry and radioimmunoassay, whether PACAP is present inhuman amniotic fluid, ovarian follicular fluid and cervico-vaginal fluid. Samples were obtained from healthy adult volunteers.Our MALDI TOF and MALDI TOF/TOF spectrometry results show that PACAP38 is present in all of the follicular fluid samples,and PACAP-like immonoreactivity was also measured by radioimmunoassay. However, we did not find the characteristic peakrepresenting the unmodified 38 amino acid form of the peptide in normal cervico-vaginal smear and amniotic fluid samples.Furthermore, we analyzed other body fluids for comparison, such as human nasal fluid, saliva and aqueous humor. PACAPwas not found in these latter samples. In summary, the present study provides evidence for the presence of PACAP in humanfollicular fluid, suggesting a role in oocyte function, but determination of the exact physiological significance awaits furtherinvestigation.
Tárgyszavak:	Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban cervico-vaginal fluid amniotic fluid follicular fluid nasal fluid saliva aqueous humor mass spectrometry radioimmunoassay
Megjelenés:	Journal of Mass Spectrometry. - 46 : 2 (2011), p. 189-194. -
További szerzők:	Reglődi Dóra (Idegtudományok) Jámbor E. Koppán Miklós Várnagy A. Biró Zsolt (szemész) Kiss P. Gaál V. Bodis József (Pécs) Bay Csaba Veszprémi B. Tamás A. (Pécs) Németh József (1954-) (vegyész, analitikus) Mark L.
Internet cím:	DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM087705
Első szerző:	Kiss Péter (Pécs)
Cím:	Presence of PACAP-38 in mammalian plasma and milk : from guinea pig to humans / Kiss P., Csanaky K., Bánki E., Tamás A., Börzsei R., Márk L., Bagoly T., Bay Cs., Váczy A., Horváth G., Németh J., Czeglédi L., Szauer E., Helyes Zs., Reglődi D.
Dátum:	2010
ISSN:	0231-424X 1588-2683
Megjegyzések:	PACAP is a pleiotropic and multifunctional neuropeptide widely distributed throughout the body. It is involved in the regulation of various physiological and pathophysiological processes, such as reproduction, thermoregulation, motor activity, brain development, neuronal survival, inflammation and pain. Since little is known about its distribution in humans, our aim was to examine PACAP-38 in human plasma. Furthermore, based on the presence of VIP, structurally the closest to PACAP, in milk, and presence of PACAP- and PACAP receptor-immunoreactive elements in the mammary gland, our aim was also to examine PACAP-38 in human milk. For comparative studies, we investigated presence of PACAP in plasma and milk of other species, including goat, sheep, cow and guinea pig. Methods. The presence of PACAP-38 was determined by mass spectrometry in plasma samples from healthy male and female volunteers (age: 20?40), in plasma and milk samples from lactating women (age: 20?35). PACAP concentration was measured with a specific and sensitive radioimmunoassay in human and other mammalian samples. Results. Our results revealed that PACAP-38 is present in human plasma, its concentration is relatively stable in healthy volunteers and it is not significantly altered by gender, age, food intake or the hormonal cycle in females. However, PACAP-38 plasma levels significantly increased in lactating women having 1?6-month-old babies. Moreover, this study is the first which provides evidence for the presence of PACAP-38 in the human milk with levels 5?20-fold greater in the milk whey than in the respective plasma samples. The same ratio was found in all other examined species. Conclusions. Based on the present findings and the literature, several important actions of milk-derived PACAP-38 can be suggested such as mammary gland proliferation, nutrient transfer as well as regulation of growth/differentiation of certain tissues of the neonates.
Tárgyszavak:	Orvostudományok Egészségtudományok idézhető absztrakt folyóiratcikk PACAP-38
Megjelenés:	Acta Physiologica Hungarica. - 97 : 1 (2010), p. 115. -
További szerzők:	Csanaky Katalin Bánki Eszter Tamás Andrea (Idegtudomány) (Pécs) Börzsei Rita Márk László Bagoly Teréz Bay Csaba Váczy Alexandra Horváth Gabriella Németh József (1954-) (vegyész, analitikus) Czeglédi Levente (1977-) (agrármérnök) Szauer Edit Helyes Zsuzsanna Reglődi Dóra (Idegtudományok)
Pályázati támogatás:	K72592 OTKA K73044 OTKA F67830 OTKA 78480 OTKA K75965 OTKA Gedeon Richter Centenary Foundation Egyéb Janos Bolyai Postdoctoral Research Fellowship Egyéb
Internet cím:	Szerző által megadott URL Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM013278
Első szerző:	Reglődi Dóra (Idegtudományok)
Cím:	Alterations of pituitary adenylate cyclase-activating polypeptide-like immunoreactivity in the human plasma during pregnancy and after birth / D. Reglodi, J. Gyarmati, T. Ertl, R. Borzsei, J. Bodis, A. Tamas, P. Kiss, K. Csanaky, E. Banki, C. Bay, J. Nemeth, Z. Helyes
Dátum:	2010
Megjegyzések:	Pituitary adenylate cyclase-activating polypeptide (PACAP)was discovered from the hypothalamus and it belongs tothe vasoactive intestinal peptide (VIP)/secretin/glucagonspeptide family (1). It occurs in two biologically active forms,with 38 and 27 amino-acid residues. The first studies reportedon its adenylate cyclase activation in pituitary cellsand described its distribution in hypothalamic nuclei influencingpituitary hormone secretion (1). Although the last 20years since its discovery have revealed numerous distincteffects in the nervous system and various peripheral organs,its endocrine functions still represent a major focusin PACAP research. PACAP influences, among others, therelease of GnRH and FSH in different species (2, 3) andthe secretion of PRL (4-6). PACAP also influences sexualbehavior, ovarian follicular maturation, and fertility (3, 7,8), uteroplacental circulation (9), and trophoblast survival(10). Furthermore, PACAP is a very important trophic factor,especially during the development of the nervous system(1, 11). Radioimmunoassay (RIA) analysis revealed thatPACAP38 concentration is higher in the hypophyseal portalblood than in the peripheral circulation in the rat (12). Inspite of the vast literature on PACAP, there are only fewhuman studies. The presence of PACAP has been shownin human blood and some other tissues (1, 13). The half-lifeof PACAP in the circulation is relatively short, only a fewminutes, due to rapid enzymatic degradation by dipeptidyl-peptidase IV (14). We have recently shown the presenceof PACAP38 in human milk by mass spectrometry,and we have also found that PACAP38-like immunoreactivity(PACAP38-LI) is 5-20 times higher in the milk than inthe plasma (15). In humans, PACAP has also been shownto influence PRL, vasopressin, and oxytocin secretion (5,16). Immunohistochemical studies have revealed the presenceof PACAP and its receptors in the female reproductivesystem, including the placenta, uterus, and mammarygland (9, 17). Recent studies have suggested the involvementof PACAP in the pathophysiological processes ofstress urinary incontinence and the prolapse of pelvic organsin female patients (18).Regarding the role of PACAP in reproductive functionsand the urging need to obtain further human data, theaim of the present study was to investigate whether theconcentration of PACAP is altered during normal pregnancy,delivery, and after childbirth. We also measuredthe levels of endogenous PACAP with RIA in the peripheralblood and of newborn babies, as well as in the bloodobtained from the umbilical arteries and veins.
Tárgyszavak:	Orvostudományok Elméleti orvostudományok idegen nyelvű folyóiratközlemény külföldi lapban Delivery newborn PACAP RIA umbilical vessels
Megjelenés:	Journal of Endocrinological Investigation. - 33 : 7 (2010), p. 443-445. -
További szerzők:	Gyarmati János (1926-1983) (radiológus) Ertl Tibor Börzsei Rita Bodis József (Pécs) Tamás A. (Pécs) Kiss Péter (Pécs) Csanaky Katalin Bánki Eszter Bay Csaba Németh József (1954-) (vegyész, analitikus) Helyes Zsuzsanna
Internet cím:	Intézményi repozitóriumban (DEA) tárolt változat
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