Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 17 de 17
Filtrar
1.
Zygote ; 27(3): 131-136, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-31072414

RESUMO

SummaryOur objective was to assess the effect of benchtop incubators with low oxygen concentrations on the clinical and embryological parameters of our patients. We conducted a prospective, randomized, opened controlled trial on infertile patients in stimulated cycles. In total, 738 infertile patients were assessed for eligibility and, after final exclusions, 230 patients were allocated either to a 5% O2 group (benchtop incubator) or a 20% O2 group (classic incubator). Finally, 198 patients in the 5% O2 group and 195 in the 20% O2 group were analysed. The outcomes measured were fertilization rate, clinical pregnancy rate, and live birth rate. The primary outcome - live birth rate per all transfers - did not show any improvement in the 5% oxygen group over the 20% oxygen group (25.3% versus 22.6%, P=0.531), but the number of day 5 blastocysts was significantly higher (P=0.009). Fertilization rate did not show any beneficial effect of reduced oxygen (5%) (73.4%±22.4% versus 74.6%±24.0%, P=0.606) per all transfers but there was statistically significant difference in the day 5 SET subgroup (85.3±15.1 versus 75.1±17.5; P=0.004). Clinical pregnancy rate showed results in favour of the 5% oxygen group for all subgroups (day 3: 23.7% versus 21.1%, P=0.701; day 5 SET: 35.0% versus 30.6%. P=0.569) but showed statistical significance only in the day 5 SET subgroup (51.1% versus 29.8%; P=0.038). Culturing of embryos in benchtop incubators under low oxygen produced more blastocysts and therefore was a better alternative for embryo selection, which resulted in higher pregnancy rates. To achieve higher live birth rates, embryo quality is not the only factor.


Assuntos
Dióxido de Carbono/metabolismo , Transferência Embrionária/métodos , Fertilização in vitro/métodos , Incubadoras , Oxigênio/metabolismo , Adulto , Blastocisto/citologia , Transferência Embrionária/instrumentação , Transferência Embrionária/estatística & dados numéricos , Feminino , Fertilização in vitro/instrumentação , Fertilização in vitro/estatística & dados numéricos , Humanos , Nascido Vivo , Masculino , Gravidez , Taxa de Gravidez , Estudos Prospectivos , Fatores de Tempo
2.
Curr Pharm Des ; 24(18): 1972-1989, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29998800

RESUMO

Commonly, the angiogenic growth factors signify healing. However, gastrointestinal ulceration is still poorly understood particularly with respect to a general pharmacological/pathophysiological role of various angiogenic growth factors implemented in growth factors wound healing concept. Thereby, we focused on the stable gastric pentadecapeptide BPC 157, a peptide given always alone vs. standard peptidergic angiogenic growth factors (EGF, FGF, VEGF), and numerous carriers. Further, we reviewed how the gastrointestinal tract healing could be generally perceived (i) in terms of angiogenic growth factors, and/or (ii) through the healing of extragastrointestinal tissues healing, such as tendon, ligament, muscle and bone, and vice versa. Respected were the beneficial effects obtained with free peptides or peptides with different carriers; EGF, FGF, VEGF, and BPC 157, their presentation along with injuries, and a healing commonality, providing their implementation in both gastrointestinal ulcer healing and tendon, ligament, muscle and bone healing. Only BPC 157 was consistently effective in all of the models of acute/chronic injury of esophagus, stomach, duodenum and lower gastrointestinal tract, intraperitoneally, per-orally or locally. Unlike bFGF-, EGF-, VEGF-gastrointestinal tract studies demonstrating improved healing, most of the studies on tendon, muscle and bone injuries provide evidence of their (increased) presentation along with the various procedures used to produce beneficial effects, compared to fewer studies in vitro, while in vivo healing has a limited number of studies, commonly limited to local application, diverse healing evidence with diverse carriers and delivery systems. Contrary to this, BPC 157 - using same regimens like in gastrointestinal healing studies - improves tendon, ligament and bone healing, accurately implementing its own angiogenic effect in the healing. Thus, we claim that just BPC 157 represents in practice a pharmacological and pathophysiological role of various peptidergic growth factors.


Assuntos
Antiulcerosos/farmacologia , Fator de Crescimento Epidérmico/antagonistas & inibidores , Fatores de Crescimento de Fibroblastos/antagonistas & inibidores , Trato Gastrointestinal/efeitos dos fármacos , Fragmentos de Peptídeos/farmacologia , Proteínas/farmacologia , Fatores de Crescimento do Endotélio Vascular/antagonistas & inibidores , Cicatrização/efeitos dos fármacos , Animais , Osso e Ossos/efeitos dos fármacos , Osso e Ossos/metabolismo , Fator de Crescimento Epidérmico/metabolismo , Fatores de Crescimento de Fibroblastos/metabolismo , Trato Gastrointestinal/metabolismo , Humanos , Músculo Esquelético/efeitos dos fármacos , Músculo Esquelético/metabolismo , Fatores de Crescimento do Endotélio Vascular/metabolismo
3.
Curr Pharm Des ; 24(18): 1990-2001, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29879879

RESUMO

Years ago, we revealed a novel cytoprotective mediator, stable gastric pentadecapeptide BPC 157, particular anti-ulcer peptide that heals different organs lesions when given as a therapy, native in human gastric juice while maintaining GI-tract mucosal integrity, already tested in trials (ulcerative colitis and now multiple sclerosis). The stomach cytoprotection is the most fundamental concept, stomach cell protection and endothelium protection are largely elaborated, but so far cell, protection and endothelium protection outside of the stomach were not implemented in the therapy. However, having managed these two points, stomach cell protection and endothelium protection, either one or together, even much more than standard cytoprotective agents do, BPC 157 employed large scale of its beneficial effects seen in various organs. Providing endothelium protection, BPC 157 was shown to prevent formation and reverse established thrombosis in anastomosed abdominal aorta as well as venous thrombosis after inferior caval vein occlusion, and attenuate bleeding prolongation and thrombocytopenia after amputation, without or with anticoagulants, or venous occlusion, and finally counteract effect of L-NAME and/or L- arginine. Now, with BPC 157 application, we reveal the third most important part of the cytoprotection concept: with the stomach cell and endothelium protection to recover mucosal integrity, BPC 157 as prototype cytoprotective agent should also control blood vessel function, depending upon injury, perforated defect or vessel obstruction. After a perforated injury (i.e., stomach), BPC 157 therapy activates blood vessels "running" towards defect. After obstruction (i.e., inferior caval vein), BPC 157 activates vessels "running" towards bypassing defect, collaterals functioning. Reestablished blood flow, and largely reversed injurious course may practically implement the cytoprotection concept.


Assuntos
Antiulcerosos/farmacologia , Endotélio Vascular/efeitos dos fármacos , Trato Gastrointestinal/efeitos dos fármacos , Fragmentos de Peptídeos/farmacologia , Proteínas/farmacologia , Cicatrização/efeitos dos fármacos , Animais , Endotélio Vascular/metabolismo , Trato Gastrointestinal/metabolismo , Humanos
4.
Life Sci ; 148: 63-70, 2016 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-26872976

RESUMO

AIM: Rectovaginal fistula is a devastating condition providing more than 99% of patients for surgical treatment. We hypothesized that rectovaginal fistula may be healed by therapy with stable gastric pentadecapeptide BPC 157, in consistence with its initial clinical application and effect on external fistulas. MAIN METHODS: BPC 157 (10µg/kg or 10ng/kg) was given perorally, in drinking water (0.16µg/ml or 0.16ng/ml, 12ml/rat/day) till sacrifice, or alternatively, intraperitoneally, first application at 30min after surgery, last at 24h before sacrifice. Controls simultaneously received an equivolume of saline (5.0ml/kg ip) or water only (12ml/rat/day). The assessment (i.e., rectal and vaginal defect, fistula leakage, defecation through the fistula, adhesions and intestinal obstruction as healing processes) was at day 1, 3, 5, 7, 10, 14 and 21. KEY FINDINGS: Regularly, rectovaginal fistulas exhibited poor healing, with both of the defects persisting, continuous fistula leakage, defecation through the fistula, advanced adhesion formation and intestinal obstruction. By contrast, BPC 157 given perorally or intraperitoneally, in µg- and ng-regimens rapidly improved the whole presentation, with both rectal and vaginal defects simultaneously ameliorated and eventually healed. The maximal instilled volume was continuously raised till the values of healthy rats were achieved, there were no signs of defecation through the fistula. A counteraction of advanced adhesion formation and intestinal obstruction was achieved. Microscopic improvement was along with macroscopic findings. SIGNIFICANCE: BPC 157 effects appear to be suited to induce a full healing of rectovaginal fistulas in rats.


Assuntos
Antiulcerosos/uso terapêutico , Fragmentos de Peptídeos/uso terapêutico , Proteínas/uso terapêutico , Fístula Retovaginal/tratamento farmacológico , Fístula Retovaginal/patologia , Cicatrização/efeitos dos fármacos , Animais , Antiulcerosos/farmacologia , Feminino , Fragmentos de Peptídeos/farmacologia , Proteínas/farmacologia , Ratos , Ratos Wistar
5.
Gynecol Endocrinol ; 30(12): 845-9, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25093428

RESUMO

The aim of this review is to analyze the efficacy of different dopamine agonists in the prevention of ovarian hyperstimulation syndrome (OHSS). Cabergoline, quinagolide and bromocriptine are the most common dopamine agonists used. There are wide clinical variations among the trials in the starting time (from the day of human chorionic gonadotrophin (hCG) to the day following oocyte retrieval); the duration of the treatment (4-21 days), the dose of cabergoline (0.5 mg or 0.25 mg orally) and in the regimens used. At present, the best known effective regimen is 0.5 mg of cabergoline for 8 days or rectal bromocriptine at a daily dose of 2.5 mg for 16 days. Dopamine agonists have shown significant evidences of their efficacy in the prevention of moderate and early-onset OHSS (9.41%), compared with a placebo (21.45%), which cannot be confirmed for the treatment of late OHSS. It would be advisable to start with the treatment on the day of hCG injection or preferably a few hours earlier. The use of dopamine agonists should be indicated in patients at high risk of OHSS, as well as in patients with a history of previous OHSS even without evident signs of the syndrome.


Assuntos
Agonistas de Dopamina/uso terapêutico , Síndrome de Hiperestimulação Ovariana/prevenção & controle , Indução da Ovulação/efeitos adversos , Aminoquinolinas/uso terapêutico , Bromocriptina/uso terapêutico , Cabergolina , Ergolinas/uso terapêutico , Feminino , Humanos , Síndrome de Hiperestimulação Ovariana/etiologia
6.
Gynecol Endocrinol ; 30(8): 537-41, 2014 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-24841851

RESUMO

The purpose of this review is to analyse the sources and effects of follicular progesterone elevations during ovarian stimulation, with the underlying mechanisms and preventive strategies on the in vitro fertilisation pregnancy outcome. In the early follicular phase, a flare-up effect of gonadotrophin releasing hormone (GnRH) agonists and incomplete luteolysis in GnRH antagonist regimens can result in significant elevations of progesterone. In the late follicular phase, progesterone elevations in GnRH analogue cycles are the result of the ovarian stimulation itself, driven by high follicle stimulating hormone dosage, estradiol levels, the number of follicles and oocytes. It seems that progesterone elevations (> or = 1.5 ng/mL or 4.77 nmol/L) have a detrimental effect on the outcome of pregnancy, accelerating the endometrial maturation. The most appropriate choice to avoid the negative effects of follicular progesterone elevations is to cancel fresh embryo transfer and to transfer frozen-thawed embryos in natural cycles. To prevent follicular phase elevations it might be preferable to use milder stimulation protocols, earlier trigger of ovulation in high responders and single-blastocyst transfer on day 5. The optimal GnRH analogue protocols during the entire stimulation period appear to be the long agonist as well as "long" and long GnRH antagonist regimens.


Assuntos
Fertilização in vitro/métodos , Fase Folicular/sangue , Indução da Ovulação , Progesterona/sangue , Feminino , Fármacos para a Fertilidade Feminina/farmacologia , Fármacos para a Fertilidade Feminina/uso terapêutico , Fase Folicular/efeitos dos fármacos , Hormônio Liberador de Gonadotropina/antagonistas & inibidores , Antagonistas de Hormônios/farmacologia , Antagonistas de Hormônios/uso terapêutico , Humanos , Indução da Ovulação/métodos , Gravidez , Regulação para Cima/efeitos dos fármacos
7.
Curr Pharm Des ; 20(7): 1126-35, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-23755725

RESUMO

We reviewed stable gastric pentadecapeptide BPC 157-NO-system-relation, its close participation in Moncada's (maintained vascular integrity, platelets control) homeostatic healing response of NO-system to injury. Namely, BPC 157's particular healing effect also affects all events after vascular integrity loss (dependent on circumstances, it reduces either thrombosis (abdominal aorta anastomosis) or bleeding/thrombocytopenia (amputation, heparin, warfarin, aspirin)) and in a series of different injurious models, acute and chronic, BPC 157 consistently advances healing after severe injuries in various tissues spontaneously unable to heal; stimulates egr-1 and naB2 genes; exhibits high safety (LD1 not achieved)). Hypothesis, that BPC 157 (since formed constitutively in the gastric mucosa, stable in human gastric juice, along with significance of NO-synthase and the basal formation of NO in stomach mucosa, greater than that seen in other tissues) exhibits a general, effective competing both with L-arginine analogues (i. e., L-NAME) and L-arginine, and that this has some physiologic importance (NO-generation), later, practically supports its beneficial effects illustrating BPC 157 and NOsystem mutual (with L-NAME/L-arginine; alone and together) relations in (i) gastric mucosa and mucosal protection, following alcohol lesions, in cytoprotection course, NO-generation, and blood pressure regulation; (ii) alcohol acute/chronic intoxication, and withdrawal; (iii) cardiovascular disturbances, chronic heart failure, pulmonary hypertension, and arrhythmias; (iv) disturbances after hypokalemia and hyperkalemia, and potassium-cell membrane dysfunction; and finally, in (v) complex healing failure, proved by the fistulas healing, colocutaneous and esophagocutaneous. However, how this advantage of modulating NO-system (i. e., particular effect on eNOS gene), may be practically translated into an enhanced clinical performance remains to be determined.


Assuntos
Óxido Nítrico/metabolismo , Fragmentos de Peptídeos/fisiologia , Proteínas/fisiologia , Animais , Doenças Cardiovasculares/tratamento farmacológico , Modelos Animais de Doenças , Mucosa Gástrica/efeitos dos fármacos , Mucosa Gástrica/fisiologia , Mucosa Gástrica/fisiopatologia , Humanos , Fragmentos de Peptídeos/farmacologia , Fragmentos de Peptídeos/uso terapêutico , Proteínas/farmacologia , Proteínas/uso terapêutico , Cicatrização/efeitos dos fármacos , Cicatrização/fisiologia
8.
Coll Antropol ; 37(2): 465-70, 2013 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23940991

RESUMO

Obesity has a deteriorating impact on women with PCOS, although prevalence and the impact of specific traits of PCOS remain inconstant in different populations. Therefore, the aim of this study was to explore the differences in clinical, hormonal and metabolic features between obese and nonobese Croatian women diagnosed as having PCOS according to Rotterdam consensus criteria. The study included 74 obese and 208 nonobese women with PCOS. Clinical, biochemical and metabolic variables were compared among those PCOS subgroups. Obese subjects with PCOS had a higher risk of developing oligo-amenorrhea (OR 3.7; 95% CI, 1.1-12.5) and lower risk for developing hirsutism and acne (OR 0.2; 95% CI, 0.1-0.3 and OR 0.8; 95% CI 0.5-1.4, respectively). Obese PCOS subjects also had a higher risk of developing hyperandrogenemia (OR 2.5; CI 95% 0.9-6.7), insulin resistance (OR 4.5; CI 95%, 2.6-7.9), hypercholesterolemia (OR 5.0, CI 95% 2.5-10.2), hypertriglyceridemia (OR 5.2; 95% CI, 2.9-9.2) as well as elevated serum CRP levels (OR 4.1; 95% CI 1.4-12.2) compared to nonobese PCOS women. In conclusion, nonobese Croatian women with PCOS are more inclined to cosmetic problems associated with PCOS then metabolic ones. This is the first study to report the impact of obesity on acne and irregular menses as a study outcome. Obesity deteriorates menstrual regularity, insulin sensitivity and lipid profile in Croatian women with PCOS; therefore one of the fundamental treatment strategies of PCOS should be obesity prevention.


Assuntos
Hormônios/sangue , Obesidade/metabolismo , Obesidade/patologia , Síndrome do Ovário Policístico/metabolismo , Síndrome do Ovário Policístico/patologia , Adolescente , Adulto , Amenorreia/metabolismo , Amenorreia/patologia , Peso Corporal , Croácia , Dislipidemias/metabolismo , Dislipidemias/patologia , Feminino , Hirsutismo/metabolismo , Hirsutismo/patologia , Humanos , Resistência à Insulina , Adulto Jovem
9.
Med Sci Monit Basic Res ; 19: 93-102, 2013 Mar 12.
Artigo em Inglês | MEDLINE | ID: mdl-23478678

RESUMO

BACKGROUND: Since an originally anti-ulcer stable gastric pentadecapeptide BPC 157 (PL 14736) was shown to promote healing of injured striated muscle and smooth muscle in the gastrointestinal tract, we explored its therapeutic potentials for leak point pressure (LPP) recovery in rat stress urinary incontinence (SUI) after transabdominal urethrolysis (TU) and prolonged vaginal dilatation (VD). MATERIAL AND METHODS: During a 7-day period, TU-rats and VD-rats (or healthy rats) received BPC 157, either (i) intraperitoneally, 10 µg/kg or 10 ng/kg, once daily (first administration 30 min after surgery, last 24 h before LPP-testing and sacrifice), or (ii) per-orally, 10 µg/kg in drinking water (0.16 µg/mL, 12 mL/rat/day). Vesicourethral segments were harvested for immunohistochemical evaluation. RESULTS: All BPC 157 regimens counteracted decrease of LPP values in TU-rats and VD-rats. Additionally, BPC 157-TU rats (µg-intraperitoneally or per-orally) and BPC 157-VD rats (µg intraperitoneally) reached LPP values originally noted in healthy rats. Conversely, in healthy rats, BPC 157 did not alter LPP. Immunohistochemical studies revealed higher desmin (delineates striated organization of skeletal muscle), smooth muscle actin, and CD34 (angiogenic marker) positivity within the urethral wall in BPC 157-treated rats vs. controls, as well as overall preserved muscle/connective tissue ratio assessed with Mallory's trichrome staining. CONCLUSIONS: Pentadecapeptide BPC 157, applied parenterally or per-orally, appears to ameliorate the SUI in rat models, improving the otherwise detrimental course of healing after VD and TU, which may be analogous to human injury. These beneficial effects may possibly be selectively used in future strategies for treatment of SUI.


Assuntos
Fragmentos de Peptídeos/uso terapêutico , Proteínas/uso terapêutico , Uretra/efeitos dos fármacos , Incontinência Urinária por Estresse/tratamento farmacológico , Actinas/metabolismo , Administração Oral , Animais , Antiulcerosos/uso terapêutico , Modelos Animais de Doenças , Feminino , Infusões Parenterais , Músculo Liso/patologia , Ratos , Ratos Wistar , Uretra/patologia , Vagina/patologia , Cicatrização
10.
Curr Pharm Des ; 19(1): 76-83, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-22950504

RESUMO

Stable gastric pentadecapeptide BPC 157 is an anti-ulcer peptidergic agent, proven in clinical trials to be both safe in inflammatory bowel disease (PL-10, PLD-116, PL 14736) and wound healing, stable in human gastric juice, with no toxicity being reported. Recently, we claim that BPC 157 may be used as an antidote against NSAIDs. We focused on BPC 157 beneficial effects on stomach, duodenum, intestine, liver and brain injuries, adjuvant arthritis, pain, hyper/hypothermia, obstructive thrombus formation and thrombolysis, blood vessel function, counteraction of prolonged bleeding and thrombocytopenia after application of various anticoagulants and antiplatelet agents and wound healing improvement. The arguments for BPC 157 antidote activity (i.e., the role of BPC 157 in cytoprotection, being a novel mediator of Robert's cytoprotection and BPC 157 beneficial effects on NSAIDs mediated lesions in the gastrointestinal tract, liver and brain and finally, counteraction of aspirin-induced prolonged bleeding and thrombocytopenia) obviously have a counteracting effect on several established side-effects of NSAIDs use. The mentioned variety of the beneficial effects portrayed by BPC 157 may well be a foundation for establishing BPC 157 as a NSAIDs antidote since no other single agent has portrayed a similar array of effects. Unlike NSAIDs, a very high safety (no reported toxicity (LD1 could be not achieved)) profile is reported for BPC 157. Also, unlike the different dosage levels of aspirin, as a NSAIDs prototype, which differ by a factor of about ten, all these beneficial and counteracting effects of BPC 157 were obtained using the equipotent dosage (µg, ng/kg) in parenteral or peroral regimens.


Assuntos
Anti-Inflamatórios não Esteroides/efeitos adversos , Antídotos/uso terapêutico , Fragmentos de Peptídeos/uso terapêutico , Proteínas/uso terapêutico , Animais , Antiulcerosos/efeitos adversos , Antiulcerosos/farmacologia , Antiulcerosos/uso terapêutico , Antídotos/efeitos adversos , Antídotos/farmacologia , Aspirina/efeitos adversos , Encéfalo/efeitos dos fármacos , Encéfalo/fisiopatologia , Trato Gastrointestinal/efeitos dos fármacos , Trato Gastrointestinal/fisiopatologia , Humanos , Fígado/efeitos dos fármacos , Fígado/fisiopatologia , Fragmentos de Peptídeos/efeitos adversos , Fragmentos de Peptídeos/farmacologia , Proteínas/efeitos adversos , Proteínas/farmacologia
11.
Coll Antropol ; 36(1): 345-9, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22816245

RESUMO

The aim of the paper was to evaluate current emergency contraception (EC) methods and policies in order to implement lessons learned and maximize potential population impact while introducing dedicated EC pills in Croatia. Literature search for potential reasons for EC failing to show positive population impact and detecting actionable points to be implemented in national guidelines. Six potential reasons for ECs failure to show population impact were evaluated and four actionable points were detected: low use of EC compared to the numbers of risk events, low awareness on EC in general population, differences in efficacy of EC methods and EC vailability. In order to ensure EC's population impact in Croatia it is of a critical relevance to establish continuous education programs for population of women at risk. When recommending an EC method, superior efficacy must be a key decision-making criteria therefore cooper IUD and ulipristal acetate should be our primary options. Counseling is a critical step to ensure maximal efficacy of the EC method, but also to encourage future use of regular contraceptives. Finally, national ECP dispension protocol is needed to close the loop from effective women screening, prompt yet appropriate ECP administration/dispensing towards structured follow up after EC pills intake.


Assuntos
Anticoncepção Pós-Coito , Conhecimentos, Atitudes e Prática em Saúde , Política de Saúde , Assunção de Riscos , Anticoncepção Pós-Coito/métodos , Anticoncepção Pós-Coito/normas , Anticoncepção Pós-Coito/estatística & dados numéricos , Croácia , Feminino , Humanos
12.
Curr Pharm Des ; 17(16): 1612-32, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21548867

RESUMO

Stable gastric pentadecapeptide BPC 157 is an anti-ulcer peptidergic agent, safe in inflammatory bowel disease clinical trials (GEPPPGKPADDAGLV, M.W. 1419, PL 14736) and wound healing, stable in human gastric juice and has no reported toxicity. We focused on BPC 157 as a therapy in peridontitis, esophagus, stomach, duodenum, intestine, liver and pancreas lesions. Particularly, it has a prominent effect on alcohol-lesions (i.e., acute, chronic) and NSAIDs-lesions (interestingly, BPC 157 both prevents and reverses adjuvant arthritis). In rat esophagitis and failed function of both lower esophageal sphincter (LES) and pyloric sphincters (PS), BPC 157 increased pressure in both sphincters till normal and reduced esophagitis. However, in healthy rats, it may decrease (PS) or increase (LES) the pressure in sphincters. It has strong angiogenic potential, it acts protectively on endothelium, prevents and reverses thrombus formation after abdominal aorta anastomosis, affects many central disturbances (i.e., dopamine and 5-HT system), the NO-system (either L-arginine and L-NAME effects), endothelin, acts as a free radical scavenger (counteracting CCl4-, paracetamol-, diclofenac-injuries) and exhibits neuroprotective properties. BPC 157 successfully heals the intestinal anastomosis, gastrocutaneous, duodenocutaneous and colocutaneous fistulas in rats, as well as interacting with the NO-system. Interestingly, the fistula closure was achieved even when the BPC 157 therapy was postponed for one month. In short-bowel syndrome escalating throughout 4 weeks, the constant weight gain above preoperative values started immediately with peroral and parental BPC 157 therapy and the villus height, crypth depth and muscle thickness (inner (circular) muscular layer) additionally increased. Thus, BPC 157 may improve gastrointestinal tract therapy.


Assuntos
Antiulcerosos/uso terapêutico , Gastroenteropatias/tratamento farmacológico , Fragmentos de Peptídeos/uso terapêutico , Proteínas/uso terapêutico , Animais , Humanos , Ratos
13.
Regul Pept ; 156(1-3): 83-9, 2009 Aug 07.
Artigo em Inglês | MEDLINE | ID: mdl-19465062

RESUMO

Pentadecapeptide BPC 157 (GEPPPGKPADDAGLV, MW 1419) reversed congestive heart failure and various arrhythmias, influenced the NO-system and showed no proarrhythmic effect. In therapy analogy, we challenged rats with digitalis, to show attenuation by BPC 157 and the relation between the NO-system and digitalis toxicity. (i). BPC 157 prophylactic effect. Development of cumulative intravenous digitalis toxicity, BPC 157 (50 microg, 10 microg, 10 ng/kg applied intravenously immediately before a methyldigoxin increment regimen (2.0/1.5/1.5/1.0 mg/kg at 15 min-intervals, total dose 6.0 mg/kg/45 min)) reduced the number of ventricular premature beats, prolonged the time before onset of ventricular tachycardia, reduced ventricular tachycardia and AV-block duration (microg-regimes) or reduced mainly the AV-block duration (ng-regimen). (ii). BPC 157 therapy. Advanced methyldigoxin toxicity (6.0 mg/kg i.v. bolus). BPC 157 applied at the 20th second of the grade 3 AV-block shortened AV-blocks, mitigated a further digitalis toxicity course. Ventricular tachycardias were either avoided (50 microg), or markedly reduced (10 microg, 10 ng). Fatal outcome was either avoided (50 microg), reduced (10 microg), or only delayed (10 ng) (iii) BPC 157, L-NAME, l-arginine, L-NAME+l-arginine application. L-NAME-application (5 mg/kg i.p.) aggravated methyldigoxin-arrhythmias. l-arginine (200 mg/kg i.p.) alone had no effect but blunted L-NAME-exaggeration (L-NAME+l-arginine). In this respect, BPC 157 (50 microg/kg i.p.) was prophylactically and therapeutically more effective: the antagonism of L-NAME with BPC 157 produced an effect similar to BPC 157 alone. In conclusion, digitalis-induced arrhythmias in rats could be prevented and counteracted by pentadecapeptide BPC 157, mainly through an interaction with the NO-system.


Assuntos
Antiarrítmicos/farmacologia , Arritmias Cardíacas/induzido quimicamente , Frequência Cardíaca/efeitos dos fármacos , Medigoxina/farmacologia , Óxido Nítrico/metabolismo , Fragmentos de Peptídeos/farmacologia , Proteínas/farmacologia , Animais , Antiulcerosos/farmacologia , Arginina/farmacologia , Arritmias Cardíacas/tratamento farmacológico , Arritmias Cardíacas/prevenção & controle , Masculino , NG-Nitroarginina Metil Éster/farmacologia , Ratos , Ratos Wistar
14.
Dig Dis Sci ; 54(10): 2070-83, 2009 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-19093208

RESUMO

The gastric pentadecapeptide BPC 157, which was shown to be safe as an antiulcer peptide in trials for inflammatory bowel disease (PL14736, Pliva), successfully healed intestinal anastomosis and fistula in rat. Therefore, we studied for 4 weeks rats with escalating short bowel syndrome and progressive weight loss after small bowel resection from fourth ileal artery cranially of ileocecal valve to 5 cm beneath pylorus. BPC 157 (10 microg/kg or 10 ng/kg) was given perorally, in drinking water (12 ml/rat/day) or intraperitoneally (once daily, first application 30 min following surgery, last 24 h before sacrifice). Postoperatively, features of increasingly exhausted presentation were: weight loss appearing immediately regardless of villus height, twofold increase in crypt depth and fourfold increase in muscle thickness within the first week, jejunal and ileal overdilation, and disturbed jejunum/ileum relation. In contrast, constant weight gain above preoperative values was observed immediately with BPC 157 therapy, both perorally and parenterally, and villus height, crypt depth, and muscle thickness [inner (circular) muscular layer] also increased, at 7, 14, 21, and 28 days. Moreover, rats treated with pentadecapeptide BPC 157 showed not different jejunal and ileal diameters, constant jejunum-to-ileum ratio, and increased anastomosis breaking strength. In conclusion, pentadecapeptide BPC 157 could be helpful to cure short bowel syndrome.


Assuntos
Antiulcerosos/uso terapêutico , Fragmentos de Peptídeos/uso terapêutico , Proteínas/uso terapêutico , Síndrome do Intestino Curto/tratamento farmacológico , Animais , Antiulcerosos/farmacologia , Intestino Delgado/patologia , Masculino , Fragmentos de Peptídeos/farmacologia , Proteínas/farmacologia , Distribuição Aleatória , Ratos , Ratos Wistar
15.
J Pharmacol Sci ; 108(1): 7-17, 2008 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-18818478

RESUMO

We focused on the therapeutic effect of the stable gastric pentadecapeptide BPC 157 and how its action is related to nitric oxide (NO) in persistent colocutaneous fistula in rats (at 5 cm from anus, colon defect of 5 mm, skin defect of 5 mm); this peptide has been shown to be safe in clinical trials for inflammatory bowel disease (PL14736) and safe for intestinal anstomosis therapy. BPC 157 (10 microg/kg, 10 ng/kg) was applied i) in drinking water until the animals were sacrificed at post-operative day 1, 3, 5, 7, 14, 21, and 28; or ii) once daily intraperitoneally (first application 30 min following surgery, last 24 h before sacrifice) alone or with N(G)-nitro-L-arginine methyl ester (L-NAME) (5 mg/kg), L-arginine (200 mg/kg), and their combinations. Sulphasalazine (50 mg/kg) and 6-alpha-methylprednisolone (1 mg/kg) were given once daily intraperitoneally. BPC 157 accelerated parenterally or perorally the healing of colonic and skin defect, leading to the suitable closure of the fistula, macro/microscopically, biomechanically, and functionally (larger water volume sustained without fistula leaking). L-NAME aggravated the healing failure of colocutaneous fistulas, skin, and colon wounds (L-NAME groups). L-Arginine was effective only with blunted NO generation (L-NAME + L-arginine groups) but not without (L-arginine groups). All of the BPC 157 beneficial effects remained unchanged with blunted NO-generation (L-NAME + BPC 157 groups) and with NO substrate (L-arginine + BPC 157 groups) as well as L-NAME and L-arginine co-administration (L-NAME + L-arginine + BPC 157 groups). Sulphasalazine was only moderately effective, and corticosteroid even had an aggravating effect.


Assuntos
Antiulcerosos/uso terapêutico , Doenças do Colo/tratamento farmacológico , Fístula Cutânea/tratamento farmacológico , Doenças Inflamatórias Intestinais/tratamento farmacológico , Óxido Nítrico/fisiologia , Fragmentos de Peptídeos/uso terapêutico , Proteínas/uso terapêutico , Anestesia , Animais , Arginina/farmacologia , Inibidores Enzimáticos/farmacologia , Masculino , NG-Nitroarginina Metil Éster/farmacologia , Óxido Nítrico/biossíntese , Óxido Nítrico Sintase/antagonistas & inibidores , Ratos , Ratos Wistar
16.
J Perinat Med ; 35(1): 10-27, 2007.
Artigo em Inglês | MEDLINE | ID: mdl-17313305

RESUMO

AIM: The purpose of this paper is to review and analyze the published literature on the use of three-dimensional (3DUS) and four-dimensional (4DUS) ultrasound in perinatal medicine. METHODS: We systematically searched Medline through PubMED (January 2000-January 2006), including EMBASE/Excerpta Medica database as well as the Cochrane Database of Systematic Reviews. The search terms used to identify clinical application of 3DUS and 4DUS studies in perinatal medicine were technical development, special features, and recommendation for fetal imaging, research on 3DUS or 4DUS, and the usage of invasive 3DUS or 4DUS procedures. The reference bibliographies of relevant books were also manually searched for supplementary citations. Inclusion criteria were as follows: (1) studies related to the use of 3DUS or 4DUS in perinatal medicine; (2) full text were available in English; (3) publication format of original scientific articles, case reports, editorials or literature reviews and chapters in the books. RESULTS: Five hundred and seventy-five articles were identified, and among those, 438 were relevant to this review. CONCLUSIONS: 3DUS and 4DUS provided additional information for the diagnosis of facial anomalies, evaluation of neural tube defects, and skeletal malformations. Additional research is needed to determine the clinical utility of 3DUS and 4DUS for the diagnosis of congenital heart disease, central nervous system (CNS) anomalies and detection of fetal neurodevelopmental impairment assessed by abnormal behavior in high-risk fetuses.


Assuntos
Imageamento Tridimensional , Perinatologia/métodos , Ultrassonografia Pré-Natal , Feminino , Feto/anormalidades , Feto/fisiologia , Humanos , Relações Materno-Fetais , Neonatologia/métodos , Gravidez
17.
Lijec Vjesn ; 126(7-8): 169-81, 2004.
Artigo em Servo-Croata (Latino) | MEDLINE | ID: mdl-15754785

RESUMO

Recommendations for antimicrobial treatment and prophylaxis of urinary tract infections (UTI) have been made according to the results of investigation of resistance of the most frequent causative agents of UTI to antimicrobial drugs. This investigation has been conducted for the past seven years by the Committee for monitoring bacterial resistance to antibiotics in the Republic of Croatia, with consensus of eight professional societies of the Croatian Medical Association. Uncomplicated cystitis is treated 1, 3, or 7 days, complicated 7 days, pyelonephritis 10-14 days, and complicated UTI 7 to 14 days, rarely longer. For the treatment of cystitis fluorokinolons, nitrofurantoin, betalactam antibiotics, and in the fields of lower resistance trimethoprim/sulfamethoxazol are being used. Single treatment with fluorokinolons is administered to otherwise healthy young women with normal urinary tract in whom cystitis symptoms have been present for less than 7 days. Empiric antimicrobial treatment of pyelonephritis, recurrent and all complicated UTI must be reviewed after urine culture finding is obtained. In the treatment of bacterial prostatitis and febrile UTI in males, the drug of first choice is ciprofloxacin. Asymptomatic bacteriuria (AB) is treated in pregnant women, newborns, preschool children with urinary tract abnormalities, before invasive urologic and gynecologic procedures, in kidney transplant recipients, and in the first days of short term urinary bladder catheterization. Recommendations for the treatment of AB in patients with diabetes mellitus have been controversial in the past two years. Antimicrobial prophylaxis is administered mostly one hour prior to the diagnostic or therapeutic invasive urological procedure, using selected antimicrobial agents.


Assuntos
Antibacterianos/uso terapêutico , Infecções Urinárias/tratamento farmacológico , Infecções Urinárias/prevenção & controle , Antibioticoprofilaxia , Humanos , Infecções Urinárias/diagnóstico
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...