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1.
Neurotox Res ; 39(6): 2029-2041, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34797527

RESUMO

Newly synthesized Pathway Preferential Estrogen-1 (PaPE-1) selectively activates membrane estrogen receptors (mERs), namely, mERα and mERß, and has been shown to evoke neuroprotection; however, its effectiveness in protecting brain tissue against hypoxia and ischemia has not been verified in a posttreatment paradigm. This is the first study showing that a 6-h delayed posttreatment with PaPE-1 inhibited hypoxia/ischemia-induced neuronal death, as indicated by neutral red uptake in mouse primary cell cultures in vitro. The effect was accompanied by substantial decreases in neurotoxicity and neurodegeneration in terms of LDH release and Fluoro-Jade C staining of damaged cells, respectively. The mechanisms of the neuroprotective action of PaPE-1 also involved apoptosis inhibition demonstrated by normalization of both mitochondrial membrane potential and expression levels of apoptosis-related genes and proteins such as Fas, Fasl, Bcl2, FAS, FASL, BCL2, BAX, and GSK3ß. Furthermore, PaPE-1-evoked neuroprotection was mediated through a reduction in ROS formation and restoration of cellular metabolic activity that had become dysregulated due to hypoxia and ischemia. These data provide evidence that targeting membrane non-GPER estrogen receptors with PaPE-1 is an effective therapy that protects brain neurons from hypoxic/ischemic damage, even when applied with a 6-h delay from injury onset.


Assuntos
Isquemia Encefálica , Congêneres do Estradiol , Hipóxia Encefálica , Indanos , Receptores de Estrogênio , Animais , Camundongos , Isquemia Encefálica/tratamento farmacológico , Caspase 3/metabolismo , Células Cultivadas , Congêneres do Estradiol/uso terapêutico , Hipóxia Encefálica/tratamento farmacológico , Indanos/farmacologia , Indanos/uso terapêutico , L-Lactato Desidrogenase/metabolismo , Neurônios/efeitos dos fármacos , Espécies Reativas de Oxigênio/metabolismo , Receptores de Estrogênio/efeitos dos fármacos
2.
Transplant Proc ; 50(7): 2150-2153, 2018 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-30177128

RESUMO

Pregnancy following renal or liver transplant is safe for the mother, fetus, and allograft if standard practice guidelines are strictly followed. Cesarean delivery is often required for the safety of the mother and child. The aim of this paper was the evaluation of delivery method in patients after liver (G1) and kidney transplantation (G2) in comparison with the population of healthy pregnant women (G0). MATERIALS: Retrospective analysis included 51 (G1) and 59 (G2) women who delivered between 2000 and 2016. Control group (G0) consisted of 170 nontransplanted patients, who delivered between 2014 and 2016. The results were compared using nonparametric and parametric tests (Fisher exact test, t test). The SAS 9.2 was used for the analysis. RESULTS: The rate of cesarean delivery was high in all pregnancies following kidney (G1 = 80.4%) or liver transplantation (G2 = 67.8%) compared with control group (G0 = 44.1%; P < .05). The most common indication for cesarean delivery in G1 was gestational hypertension/preeclampsia (n = 18; 43.9%), threatening intrauterine asphyxia (n = 12; 29.3%), and failure to progress (n = 2; 4.9%). The most common indications for cesarean delivery in G2 were threatening intrauterine asphyxia (n = 14; 35%), failure to progress (n = 9; 22.5%), and gestational hypertension/preeclampsia (n = 2; 5%). CONCLUSION: Cesarean delivery in patients after kidney or liver transplantation is performed mainly for obstetric reasons. The reported incidence of cesarean delivery in pregnancy following transplant is high, reflecting the high degree of clinical caution exercised in these patients.


Assuntos
Cesárea/estatística & dados numéricos , Parto Obstétrico/métodos , Transplante de Rim , Transplante de Fígado , Adolescente , Adulto , Feminino , Humanos , Gravidez , Complicações na Gravidez/epidemiologia , Resultado da Gravidez , Estudos Retrospectivos , Fatores de Risco , Adulto Jovem
3.
Transplant Proc ; 50(6): 1889-1891, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30056922

RESUMO

BACKGROUND: Chronic immunosuppression constitutes a risk factor of human papillomavirus (HPV) related cervical cancer development. Maintenance immunosuppression with mammalian target of rapamycin (mTOR) inhibitors is associated with decreased incidence of de novo malignancies in kidney graft recipients. Recently published data suggest that mTOR inhibitors interfere with viral replication. The aim of the study was to assess if there is a difference in prevalence of HPV cervical infection in women on immunosuppressive regimens with or without mTOR inhibitors. MATERIAL AND METHODS: Cervical swabs taken from 64 immunosuppressed women on renal replacement therapy were analyzed for the presence of high-risk (HR) HPV DNA by means of an Amplicor HPV test and assessed taking into account the recorded data on mTOR inhibitor use. RESULTS: The testing revealed the presence of HR HPV DNA in none of the women that were treated with mTOR inhibitors and in 21.4% of patients that were administered immunosuppressive regimens without mTOR inhibitors (P = .08). Interestingly, 32% of women from the mTOR(-) group in contrast to 12.5% in the mTOR(+) group declared having had more than 2 lifetime sexual partners. CONCLUSIONS: Our results suggest that mTOR inhibitors might constitute a promising therapy modification in women at risk of HPV cervical malignancy development, but the effectiveness of such strategy requires further studies.


Assuntos
Colo do Útero/virologia , Imunossupressores/uso terapêutico , Infecções por Papillomavirus/epidemiologia , Terapia de Substituição Renal , Sirolimo/uso terapêutico , Adulto , DNA Viral , Feminino , Humanos , Terapia de Imunossupressão/métodos , Incidência , Pessoa de Meia-Idade , Papillomaviridae/efeitos dos fármacos , Prevalência , Fatores de Risco , Serina-Treonina Quinases TOR/antagonistas & inibidores , Neoplasias do Colo do Útero/virologia
4.
Transplant Proc ; 50(6): 1892-1895, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30056923

RESUMO

INTRODUCTION: Kidney transplantation (KTx) is the treatment of choice in patients with end-stage renal failure. Among various medical issues in female graft recipients, the need for maternity can become an overriding one. Gonadal dysfunction usually resolves within 6 months after transplantation; however, the prevalence of infertility is similar to this in the general population. MATERIALS AND METHODS: This case series describes the experience in infertility treatment and following perinatal care among KTx women who underwent successful in vitro fertilization (IVF). We followed three patients who previously received KTx and underwent IVF between 2014 and 2015. The 34-year-old (patient A) and 39-year-old (patient B) women received single KTx, and the 31-year-old (patient C) woman had received three previous transplantations. Patients A and C were diagnosed with primary tubal factor infertility, while patient B suffered from secondary idiopathic infertility. The stimulation protocols had no influence on their general condition nor graft function. Viable singleton pregnancies were confirmed in all cases. All newborns were born preterm, via cesarean section, as a consequence of severe preeclampsia. Patients A and C gave birth at 34th week of gestation (WG) (A: 1810 g and C: 2295 g), while patient B gave birth at 36th WG (2655 g). Other pregnancy complications were intrauterine growth restriction (patient A) and gestational diabetes mellitus (patient B). Although mild graft dysfunction was observed prior to delivery, all clinical measures and hypertension resolved during the puerperium. CONCLUSIONS: In these cases, pregnancy after KTx did not implicate persistent graft dysfunction. Regardless of the method of conception, pregnancy following KTx is associated with an increased incidence of complications, therefore it requires a multidisciplinary approach. IVF itself seems to be a safe procedure in KTx recipients if the pregnancy is advisable.


Assuntos
Fertilização in vitro , Transplante de Rim , Complicações na Gravidez , Resultado da Gravidez , Transplantados , Adulto , Feminino , Humanos , Recém-Nascido , Infertilidade Feminina/complicações , Falência Renal Crônica/etiologia , Gravidez , Complicações na Gravidez/epidemiologia
5.
Transplant Proc ; 48(5): 1532-4, 2016 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-27496441

RESUMO

BACKGROUND: Pathological changes of uterine adnexa are frequently encountered in patients after solid-organ transplantation. The aim of the study was to evaluate the incidence of malignancies among recipients operated with the diagnosis of adnexal tumor with or without clinical symptoms. METHODS: We retrospectively analyzed data from 146 solid-organ recipients who underwent surgery in the First Department of Obstetrics and Gynecology, Medical University of Warsaw, in the years 2000 to 2014. Among them, we identified 80 patients of mean age 40.9 ± 11.1 years with suspected adnexal tumor. Data on symptoms reported by patients were compared with the results of histopathological examination after surgical treatment. RESULTS: Kidney recipients were 76.2% of the group studied (including 5 women after kidney and pancreas transplantation); the remaining 23.75% of patients were liver recipients (including 1 kidney and liver). The majority of patients (71.25%) reported no clinical symptoms. The remaining 28.75% of patients had clinical complaints, with the most common symptom being abdominal pain (in 60% of patients). Analysis of the results of histopathological examination revealed that in both groups, the most often encountered pathological findings were serous cystadenoma (33.3% and 47% of patients, respectively), endometrial cysts (24.6% and 21.7%, respectively), and functional cysts (22.8% and 17.3%, respectively). None of the asymptomatic patients were diagnosed as malignant, whereas 2 cases (both ovarian and fallopian tube cancer) were diagnosed among women who reported clinical symptoms. CONCLUSIONS: Observations of patients after organ transplantation indicate a recurring nature of adnexal changes, resulting in qualification for surgical treatment. The survey results suggest that solid-organ recipients with pathology in the uterine adnexa, with non-suspicious ultrasound image and not reporting clinical symptoms, could safely be subjected to clinical observation providing strict supervision.


Assuntos
Doenças dos Anexos/epidemiologia , Transplante de Órgãos , Adulto , Idoso , Feminino , Humanos , Incidência , Pessoa de Meia-Idade , Estudos Retrospectivos
6.
Transplant Proc ; 48(5): 1556-60, 2016 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-27496446

RESUMO

BACKGROUND: Immunosuppressive therapy is associated with an increased risk of pregnancy complications and may have adverse effects for the newborn. The aim of this study was to determine the frequency and the type of early congenital infections and to assess typical markers of infections in neonates of liver and kidney recipients. METHODS: A retrospective analysis of 71 neonates born to either liver (39 cases) or kidney transplanted women (32 cases) was conducted. The rate and the type of newborns' infections as well as laboratory and bacteriologic markers of infections were analyzed. RESULTS: There was no significant difference in the frequency of congenital infections between the LT and KT groups (8 vs 7 cases; P = .879).). The rate of infections was not significantly higher in both groups compared with the general population. Infections were detected in 23.9%, 13.6%, and 26.6% of neonates born to mothers using tacrolimus, cyclosporine, and azathioprine respectively. No significant differences in white blood count or levels of neutrocytes and lymphocytes were observed between the groups. No abnormalities in white blood smear, but 1 case of leukopenia in the kidney transplant group, were detected. CONCLUSIONS: The rate of congenital infections in neonates of allograft recipients is not significantly higher than in the general population. Immunosuppressive regimens with azathioprine seem to carry the greatest risk, it is a little lower in the tacrolimus group, and cyclosporine-based regimens have the lowest risk of congenital infections. Differences were not statistically significant. Prenatal exposure to immunosuppressive agents seems not to be associated with any hematologic disturbances in white blood count and white blood smear.


Assuntos
Imunossupressores/efeitos adversos , Infecções/congênito , Infecções/epidemiologia , Transplante de Rim , Transplante de Fígado , Complicações na Gravidez/imunologia , Adulto , Azatioprina/efeitos adversos , Ciclosporina/efeitos adversos , Feminino , Humanos , Terapia de Imunossupressão , Recém-Nascido , Transplante de Rim/efeitos adversos , Masculino , Gravidez , Estudos Retrospectivos , Tacrolimo/efeitos adversos , Transplante Homólogo
7.
Transplant Proc ; 48(5): 1730-5, 2016 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-27496481

RESUMO

BACKGROUND: Pregnancies in transplant recipients involve risks for both grafts and the fetus, and need to be carefully managed. Hypertension is the most frequent complications in pregnant transplant recipients, especially in renal transplant recipients. Strict control of blood pressure is essential for a favorable obstetric outcome and long-term graft survival. The aim of the study was to evaluate the influence of hypertension on obstetric outcome and graft function in pregnant renal transplant recipients (RTR) or liver transplant recipients (LTR) in comparison with healthy pregnant women. PATIENTS AND METHODS: This retrospective analysis included 46 RTR and 55 LTR who delivered between the years 2000 and 2014. The control group consisted of 187 nontransplant patients aged 20-45 years who delivered between 2010 and 2013. The analyzed group was divided into 2 subgroups: patients with hypertension and patients without hypertension. Descriptive data analysis, Fisher Exact test, unpaired Student t test, and analysis of the variance were performed. RESULTS: Hypertension prevalence among the RTR, LTR, and control group was 73.5%, 34.5%, and 4.3% respectively. In the RTR group, the mean gestational age at delivery inp patients with hypertension vs without hypertension was 36 vs 34.5 weeks (P < .05); IUGR was diagnosed in 20% vs 8.5% pregnant women (P > .05). In the TRL group, the mean gestational age at delivery in group with hypertension vs without hypertension was 37 vs 3.9 weeks (P < .05); IUGR was diagnosed in 10.5% vs 5% of pregnant women (P > .05). Hypertension in RTR patients had a negative influence on graft function (P > .05). CONCLUSION: Hypertension is common in organ recipients, and is associated with adverse pregnancy outcomes and loss of graft function.


Assuntos
Anti-Hipertensivos/uso terapêutico , Hipertensão Induzida pela Gravidez/tratamento farmacológico , Transplante de Rim , Transplante de Fígado , Adulto , Estudos de Casos e Controles , Quimioterapia Combinada , Feminino , Idade Gestacional , Humanos , Pessoa de Meia-Idade , Gravidez , Resultado da Gravidez , Cuidado Pré-Natal , Estudos Retrospectivos , Transplantados , Adulto Jovem
8.
J Reprod Immunol ; 112: 115-9, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-26469990

RESUMO

The aim of the study was to evaluate the effect of pregnancy on the production of donor- and nondonor-specific anti-human leukocyte antigen antibodies (anti-HLA Abs) in organ allograft recipients. The study group included four pregnant kidney (RT) and four liver (LT) transplant recipients. The genotype of HLA class I (A, B) and class II (DR) antigens was assessed. Anti-HLA antibodies class I and II were evaluated between 36 and 40 weeks' gestation. Two different control groups consisted of the following: group I (n=8) with nonpregnant RT (n=6) and LT recipients (n=2), and group II with healthy pregnant women (n=10) with anti-HLA Abs detected between 38 and 41 weeks' gestation. The HLA genotype was determined in fathers of the fetuses from the study group and group II controls. Half of group II controls had donor-specific anti-HLA (A, B, and/or DR) Abs, while nondonor-specific anti-HLA Abs were detected in all subjects from that group. Anti-HLA Abs were found in all group II controls. In the study group, anti-HLA Abs were found in only two LT recipients and one RT recipient, but they were not confirmed as donor-specific. Anti-HLA antibodies were not detected in the study group, whereas six out of ten group II controls had anti-HLA Abs against the HLA of the child's father. Pregnancy in vascularized organ recipients does not trigger the mechanism of humoral rejection involving anti-HLA class I and II antibodies with a potentially adverse impact on graft function.


Assuntos
Rejeição de Enxerto/imunologia , Antígenos HLA/imunologia , Isoanticorpos/imunologia , Transplante de Rim , Transplante de Fígado , Complicações na Gravidez/imunologia , Adulto , Feminino , Genótipo , Rejeição de Enxerto/sangue , Rejeição de Enxerto/genética , Antígenos HLA/sangue , Antígenos HLA/genética , Humanos , Isoanticorpos/sangue , Isoanticorpos/genética , Gravidez , Complicações na Gravidez/sangue , Complicações na Gravidez/genética
9.
J Matern Fetal Neonatal Med ; 28(2): 177-81, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-24670239

RESUMO

AIM: Retrospective analysis of the course of pregnancy, labor and mode of anesthesia in women with portal hypertension and esophageal varices induced by portal vein thrombosis. MATERIAL: From 2000 to 2012 seven pregnant were admitted. None had liver transplantation (Ltx), the varicose have been in the 1st stage. Each of them has been consulted by the obstetrician, transplant surgeon and anesthetist. The patient condition during pregnancy, labor and postpartum period was analyzed. RESULTS: Pregnancy in five cases proceeded physiologically. In one threatening miscarriage was diagnosed and treated with gestagens, two patients had tocolytic. One required variceal banding twice. In three thrombocytopenia worsened, with platelet count <70 g/L (up to 59 g/L). They received platelet transfusion before delivery. In one case, significant hipoproteinemia (4.7 g/L) occurred. In a case, GDM G1 and oligohydramnios were found. All women delivered at term (37-40 Hbd). In all general anesthesia with the use of remifentanil was done. There were no fluctuations in MAP and HR. Incision to delivery time was 2.5 min. Time from opioid administration to birth was <4 min. All children were born in good condition, weight 10-90 percentile. Regional anesthesia is contraindicated in patients with thrombocytopenia. In patients with esophageal varices sudden increase in heart rate and blood pressure can cause hemorrhage. CONCLUSION: Patients with portal hypertension can deliver at term. It is a high-risk pregnancy. In this group it is desirable to shorten the second stage of labor or complete it by c-section under general anesthesia with remifentanyl which allows getting desired analgesia without complications in the newborn. Surveillance of pregnant with portal hypertension must include monitoring of liver function and coagulation disorders.


Assuntos
Síndrome de Budd-Chiari/epidemiologia , Parto Obstétrico , Varizes Esofágicas e Gástricas/epidemiologia , Complicações Cardiovasculares na Gravidez/epidemiologia , Resultado da Gravidez/epidemiologia , Peso ao Nascer , Síndrome de Budd-Chiari/complicações , Estudos de Coortes , Parto Obstétrico/métodos , Parto Obstétrico/estatística & dados numéricos , Varizes Esofágicas e Gástricas/etiologia , Feminino , Humanos , Hipertensão Portal/complicações , Hipertensão Portal/epidemiologia , Recém-Nascido , Complicações do Trabalho de Parto/epidemiologia , Complicações do Trabalho de Parto/etiologia , Período Pós-Parto , Gravidez , Estudos Retrospectivos
10.
Transplant Proc ; 46(10): 3268-72, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25498036

RESUMO

INTRODUCTION: Organ transplantation has improved the quality and length of life for many people suffering from end-stage diseases, among them women of reproductive age. Therefore, it has made pregnancy possible for those previously unable to conceive. Nevertheless, conception itself should be desired and properly timed in these specific patients to ensure the best possible perinatal outcome. OBJECTIVE: The objective of the study was to assess whether female graft recipients apply proper family planning methods and use effective contraception. METHODS: In a single-center, observational study, information was collected using a self-administered questionnaire distributed among 100 female graft recipients (post-transplant group [TG]) and 67 healthy female volunteers (control group [CG]). The survey covered data regarding present menstrual patterns, sexual activity, gynecological counseling, and contraceptive methods used. RESULTS: Female graft recipients were more sexually active after than before transplantation (87% vs 64%, P = .0001) and equally active as controls. Sexually active post-transplantation patients used contraception less frequently than sexually active controls (51.72% vs 82.76%, P < .0001). Condoms were the most frequently used method in TG, and oral contraception in CG. Oral contraception was used more rarely by counseled graft recipients than by counseled controls (3.9% vs 60.7%, P < .0001). After counseling, intrauterine device usage increased and oral contraception usage decreased in TG. Among women with chronic diseases, intrauterine device was used more often in TG (4% vs 0%), whereas oral contraception was used more often in CG (8.3% vs 50%, P < .0001). CONCLUSIONS: Despite the fact that post-transplantation women of reproductive age have many indications for highly effective contraception, only few of them actually use it. Contraceptive counseling has to be included as part of routine post-transplantation care by all health professionals involved in the management of female graft recipients of reproductive age.


Assuntos
Anticoncepção/métodos , Aconselhamento/métodos , Transplante de Órgãos , Adolescente , Adulto , Feminino , Humanos , Gravidez , Comportamento Sexual , Adulto Jovem
11.
Transplant Proc ; 46(8): 2703-7, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25380899

RESUMO

OBJECTIVE: The aim of this study was to evaluate whether chronic use of immunosuppressive drugs during pregnancy in women after renal transplantation affects the concentration of immunoglobulin G (IgG) and IgM in the serum of their children. MATERIAL: Seventy-eight children aged 1 day to 15 years were enrolled. The study group consisted of 39 children born to renal transplant recipient mothers. The control group comprised 39 children whose mothers had not received immunosuppressive medications during pregnancy and were born at similar gestational age. METHODS: Serum concentrations of IgG and IgM were evaluated with the use of agglutination immunoassays on Siemens or Cobas device. Age-adjusted reference values for immunoglobulins formulated by Wolska-Kusnierz et al were used. Statistical analysis was performed with the use of Statistica 10.0 software with P value <.05 considered significant. RESULTS: Normal IgG concentrations were found in 82.05% (32) of children from the study group and 79.49% (31) of the control group. IgG concentrations below normal range were observed in 12.82% (5) of children from the study group and in 15.38% (6) of the control group. Normal concentrations of IgM were found in 53.85% (21) of children from the study group and in 61.54% (24) of the control group. Decreased levels of IgM were observed in 38.46% (15) of children from the study group and 35.9% (14) of the control group. There were no significant differences regarding the analyzed values between the groups. CONCLUSION: The exposure to chronic intrauterine immunosuppression had no significant effect on the concentration of IgG or IgM in children born to kidney transplant recipients.


Assuntos
Imunoglobulina G/sangue , Imunoglobulina M/sangue , Imunossupressores/efeitos adversos , Transplante de Rim , Efeitos Tardios da Exposição Pré-Natal/induzido quimicamente , Adolescente , Adulto , Biomarcadores/sangue , Estudos de Casos e Controles , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Recém-Nascido , Gravidez , Efeitos Tardios da Exposição Pré-Natal/imunologia , Estudos Prospectivos
12.
Transplant Proc ; 46(8): 2790-3, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25380919

RESUMO

INTRODUCTION: Children of mothers after liver transplantation (LT) are exposed during fetal life to the immunosuppressive agents. These drugs may have hepatotoxic and nephrotoxic effects. OBJECTIVES: The aim of the work was to assess liver and kidney parameters of children born from mothers who had LT. MATERIALS AND METHODS: The research included 51 children of mothers after LT and 51 children from a control group who were born in the First Department of Obstetrics and Gynecology in Warsaw between 2001 and 2013. The control group consisted of children born in the similar gestational age. Analysis concerned neonates, infants, and children older than 12 months. Two liver parameters (alanine transaminase [ALT] and aspartate transaminase [AST]) as well as two kidney parameters (urea and creatinine) were assessed. For statistical analysis we used Fisher's exact test and the Mann-Whitney test. RESULTS: All children from the LT group had correct ALT levels. In the control group, 5 of 51 cases (9.8 %) had levels that were greater than the norm, and those cases concerned only children younger than 12 months. The average concentration of ALT in the LT group was 15.14 U/L and the average for the control group was 22.6 U/L (P = .012699, Mann-Whitney test). Three of 51 children in the LT group (5.9%) and 8 of 51 (15.7%) in the control group had AST levels that were increased (P = .2003; Fisher's exact test). Incorrect AST levels were reported in all age groups. Incorrect values of kidney parameters concerned only neonates. Increased creatinine levels were reported in 3 of 51 cases (5.9%) in the LT group and in 1 of 51 cases (1.96%) in the control group (P = .6175; Fisher's exact test). The average concentration of creatinine in children of mothers after LT was 0.51 mg/dL, and the average of the control group was 0.44 mg/dL (P = .223698; Mann-Whitney test). Only 1 of 51 children in the LT group (1.96%) had an increased urea level. All children from both the LT and the control groups had normal ultrasound images of urinary tract and liver. CONCLUSION: Exposure to immunosuppressive drugs during fetal life does not result in the occurrence of serious disturbances of liver function and kidneys function in children of mothers after LT.


Assuntos
Alanina Transaminase/sangue , Aspartato Aminotransferases/sangue , Creatinina/sangue , Rejeição de Enxerto/prevenção & controle , Imunossupressores/uso terapêutico , Hepatopatias/sangue , Transplante de Fígado , Efeitos Tardios da Exposição Pré-Natal/sangue , Insuficiência Renal/sangue , Feminino , Idade Gestacional , Humanos , Lactente , Recém-Nascido , Rim/diagnóstico por imagem , Fígado/diagnóstico por imagem , Hepatopatias/diagnóstico por imagem , Masculino , Gravidez , Efeitos Tardios da Exposição Pré-Natal/diagnóstico por imagem , Insuficiência Renal/diagnóstico por imagem , Ultrassonografia , Sistema Urinário/diagnóstico por imagem
13.
Transplant Proc ; 46(8): 2794-7, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25380920

RESUMO

BACKGROUND: Nowadays pregnancy after organ transplantation is possible due to advances in surgical and immunosuppressive therapies. One of the possible complications in pregnancy after organ transplantation is intrauterine growth restriction (IUGR). This may lead to various adverse perinatal outcomes. Prevalence of IUGR in the general population is estimated at 3%-10% with smoking being the most frequent maternal risk factor. The aim of this study was to determine the risk factors of IUGR in pregnant renal transplant recipients (RTR) or liver transplant recipients (LTR) in comparison with healthy pregnant women. METHODS: Retrospective analysis included 48 RTR and 52 LTR. IUGR was defined as estimated fetal weight less than the 10th percentile for gestational age. IUGR was diagnosed in 15 (31.3%) pregnant RTR and in 10 (19.2%) LTR. The control group consisted of 60 healthy pregnant women diagnosed with IUGR. Fisher exact test and Student t test were used to assess the differences in fractions and means, respectively, between distinguished groups of patients. Test for fractions based on asymptotic normal distribution was used to compare the proportion of patients with IUGR with the proportion of 10% in the general population. The logistic regression model was used to assess the statistical significance of correlations between the assumed risk factors and the prevalence of IUGR in multivariate settings. RESULTS: Hypertension, anemia, and proteinuria were the most frequent complications in the study group. They were more prominent in RTR than in LTR. Hypertension was diagnosed in all RTR, whereas severe anemia requiring erythropoietin treatment or blood transfusion was found in 4 RTR and in 1 LTR. CONCLUSION: IUGR is more common in organ recipients. Therefore, vigilant obstetric care is highly recommended in pregnant patients after renal or liver transplantation. Hypertension, severe anemia, and proteinuria proved not to be statistically significantly correlated with the prevalence of IUGR among patients after transplantation.


Assuntos
Anemia/epidemiologia , Retardo do Crescimento Fetal/epidemiologia , Hipertensão/epidemiologia , Transplante de Rim , Transplante de Fígado , Complicações na Gravidez/epidemiologia , Proteinúria/epidemiologia , Adulto , Feminino , Idade Gestacional , Rejeição de Enxerto/prevenção & controle , Humanos , Imunossupressores/uso terapêutico , Fígado , Modelos Logísticos , Gravidez , Estudos Retrospectivos , Fatores de Risco , Transplantados
14.
Transplant Proc ; 46(8): 2798-801, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25380921

RESUMO

INTRODUCTION: Immunosuppressive treatment used in pregnant liver recipients may have a negative impact on fetal development and successively a child. AIM: The aim of the study was to make a neurological assessment of infants and children born to liver transplant recipients (LTRs) born between December 4, 2001, and February 11, 2013, in the 1(st) Department of Obstetrics and Gynecology, Medical University of Warsaw. METHODS AND MATERIALS: The study involved 88 children, of whom 44 children were born to LTR mothers, and 44 children born to women who were not organ recipients and delivered at a similar gestational age. The gestational age of neonates ranged from 33 to 41 weeks, and the birth weight ranged from 1420 g to 4100 g. The neurological examination was performed in children from 7 weeks to 10 years of age. The neurological development was assessed by a specialist in pediatric neurology. The results of the examination were divided according to the following criteria: 1) normal development, 2) slight disorders, 3) moderate disorders, and 4) severe disorders. The Fisher's exact test was used for statistical analysis. RESULTS: Normal development was found in 35 of 44 (79.54%) children in the LTR group and 39 of 44 (88.63%) children in the control group (P = .3827). Slight disorders were observed in 6 of 44 (13.63%) children in LTR group and 5 of 44 (11.36%) children in the control group. Moderate disorders were found only in 3 of 44 (6.81%) children in the LTR group. No severe disorders were observed in both groups. CONCLUSIONS: Neurological development of children born to the liver recipients who were exposed to chronic immunosuppressive treatment in their fetal lives is the same as that of children whose mothers have not undergone organ transplantation.


Assuntos
Rejeição de Enxerto/prevenção & controle , Imunossupressores/uso terapêutico , Transplante de Fígado , Doenças do Sistema Nervoso/epidemiologia , Efeitos Tardios da Exposição Pré-Natal/epidemiologia , Adulto , Criança , Pré-Escolar , Feminino , Idade Gestacional , Humanos , Lactente , Masculino , Doenças do Sistema Nervoso/fisiopatologia , Gravidez , Efeitos Tardios da Exposição Pré-Natal/fisiopatologia , Transplantados
15.
Transplant Proc ; 46(8): 2929-31, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25380954

RESUMO

BACKGROUND: Hepatic artery thrombosis (HAT) increases the risk of complications and mortality after liver transplantation. The incidence for HAT is increased in patients with risk factors (vascular reconstructions, coagulation disorders and acute rejection episodes amongst others). Early retransplantation improves the prognosis for patients, but owing to lack of donors, surgical and interventional radiologic attempts to restore the patency of hepatic artery are made. The prognosis for the liver and the patient can also be improved by the development of collateral circulation. CASE REPORT: We describe a case of a 30-year-old woman with hepatic failure owing to Wilson disease. Liver transplantation with the use of vascular conduit made of donor's iliac arteries was complicated by an early HAT. Heterozygous factor V Leiden mutation was confirmed in the patient. Despite surgical and radiologic attempts to restore patency and despite treatment with fractioned heparin and aspirin, the hepatic artery remained occluded. Retransplantation was not considered, even though the patient was planning a pregnancy. After 1 year of observation of stable liver function, conversion from mycophenolate mofetil to azathioprine treatment, the patient was given consent for a high-risk pregnancy. DISCUSSION: The course of pregnancy was uneventful, with normal liver function parameters, without pathological bleedings. The patient was treated with doses of enoxaparin adjusted for the patient's weight. In the 34th week, owing to increasing concentration of bile acids, the pregnancy ended with a cesarean section. The newborn had 10-point APGAR score.


Assuntos
Artéria Hepática , Transplante de Fígado , Resultado da Gravidez , Gravidez de Alto Risco , Trombose/etiologia , Resistência à Proteína C Ativada/tratamento farmacológico , Adulto , Anticoagulantes/administração & dosagem , Circulação Colateral , Enoxaparina/administração & dosagem , Feminino , Artéria Hepática/cirurgia , Degeneração Hepatolenticular/complicações , Humanos , Rim/irrigação sanguínea , Falência Hepática/cirurgia , Transplante de Fígado/métodos , Gravidez , Fatores de Risco , Trombose/terapia
16.
Anaerobe ; 18(2): 209-13, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-22240292

RESUMO

Limited number of publications described vaginal microflora after kidney transplantation. Our PubMed search revealed only 18 publications including words "vaginal bacteria & kidney transplant" in the period of 1978-2011. The aim of this study was to characterize lactobacilli isolated from vaginal swabs of women after kidney transplantation, compared with healthy women. Eighteen renal transplant recipients (mean age 36.1) and 20 healthy women (mean age 36.0) were evaluated. Lactobacilli were cultured on MRS and Columbia blood agars. Biochemical identification with API 50 CHL (bioMerieux, Marcy L'Etoile, France) and multiplex PCR according to Song et al. was performed. Lactobacilli were tested for production of H(2)O(2). Minimal inhibitory concentrations (MICs) of selected antimicrobial agents were determined with E-tests (bioMerieux, Marcy L'Etoile, France) and interpreted with CLSI and EUCAST criteria. No bacterial vaginosis was found among studied women. Two strains of group I were identified as Lactobacillus delbrueckii; 18 strains as Lactobacillus gasseri and 15 strains as Lactobacillus crispatus. Only 3 strains from group II were not identified by species-specific mPCR. Group IV was represented with 2 unidentified strains. Vaginal lactobacilli isolated from healthy women represented more homogenous group compared with heterogenous renal transplant recipients. Biochemical identification of lactobacilli by API 50 CHL kits was concordant with mPCR results only in 7 cases (17.5%), all 7 strains were identified as L. crispatus. Majority (93%) of lactobacilli were H(2)O(2) producers. All isolated lactobacilli (100%) demonstrated high resistance to metronidazole (MIC > 256 µg/ml). Only 2 strains resistant to vancomycin (MICs: 32 and 256 µg/ml respectively), in the study and control group, and one to moxifloxacin (MIC = 32 µg/ml), were found. Resistance to metronidazole and vancomycin was concordant in CLSI and EUCAST (2010) criteria. Although significant differences between lactobacilli isolated from vaginas of kidney transplant and healthy women were not demonstrated, we demonstrated strains resistant to metronidazole, vancomycin and moxifloxacin in groups of examined women. Our study was performed on a small group of kidney transplant recipients and further more detailed molecular studies on a larger group of patients are required to confirm our results.


Assuntos
Transplante de Rim , Lactobacillus/classificação , Lactobacillus/isolamento & purificação , Vagina/microbiologia , Vagina/fisiologia , Adulto , Antibacterianos/farmacologia , Técnicas de Tipagem Bacteriana , Técnicas Bacteriológicas , Feminino , Humanos , Lactobacillus/efeitos dos fármacos , Testes de Sensibilidade Microbiana , Tipagem Molecular
17.
Transplant Proc ; 43(8): 2970-2, 2011 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-21996203

RESUMO

Pregnancies in renal transplant patients are considered to be high risk. Anemia is one of the major complications of pregnancy occurring among 65% to 85% of cases in this setting, especially since these patients carry additional risk factors. Herein we have presented five renal transplant recipients who were women who were treated with human recombinant erythropoietin due to severe anemia that developed during pregnancy. Hemoglobin levels below 9 g/dL after 3 weeks of oral iron administration were assumed to be qualifying criteria for erythropoietin treatment. No complication was observed to be associated with the treatment. Two of the five patients required blood transfusions despite erythropoietin administration. Two cases delivered small for gestational fetus age. Erythropoietin therapy in pregnant kidney transplant recipients should be considered to be a safe method to reduce the need for blood transfusions.


Assuntos
Anemia/tratamento farmacológico , Anemia/etiologia , Eritropoetina/uso terapêutico , Transplante de Rim/efeitos adversos , Complicações Hematológicas na Gravidez/tratamento farmacológico , Complicações Hematológicas na Gravidez/etiologia , Anemia/sangue , Anemia/terapia , Transfusão de Sangue , Feminino , Hemoglobinas/metabolismo , Humanos , Recém-Nascido , Recém-Nascido Pequeno para a Idade Gestacional , Falência Renal Crônica/complicações , Falência Renal Crônica/cirurgia , Gravidez , Complicações Hematológicas na Gravidez/sangue , Complicações Hematológicas na Gravidez/terapia , Resultado da Gravidez , Proteínas Recombinantes/uso terapêutico , Estudos Retrospectivos , Fatores de Risco
19.
Transplant Proc ; 43(8): 3043-7, 2011 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-21996220

RESUMO

INTRODUCTION: Liver transplantations give female recipients an ability to carry pregnancies successfully. However, solid organ transplantations exacerbate the pregnancy including maternal and neonatal outcomes. The aim of our study was to evaluate and identify the obstetric outcomes in women with a prior liver transplantation. METHODS: We analyzed all pregnant woman who had undergone a prior liver transplantation and afterward delivered from 2001 to 2011. Complete data were assessed in 39 deliveries and 40 live births. Three women were pregnant twice after liver transplantation. RESULTS: The mean gestational age at birth measured 37.2±2.2 weeks. The most common obstetric complications were premature labor (12/39,30.8%), hypertension (10/39, 25.6%), and symptomatic urinary tract infections (7/39, 18%). Other complications were pregestational diabetes (n=1), cholestasis (n=3), and of severe anemia treated with blood transfusions (n=2). The mean time from organ transplantation to delivery was 67.6±47.2 months. Acute graft rejections occurred among pregnant women 7.7% (3/39) of studied. Only 8 (20.5%) deliveries were finished vaginally. Infants small for gestational age were diagnosed in 20% (8/40). One case displayed a congenital urinary tract malformation. None of the neonates died neonatally. CONCLUSIONS: Pregnancies are possible after liver transplantation and likely end with successful maternal and newborn outcomes. Some cases experience an increased risk of obstetric complications. Therefore, posttransplant pregnancies must be regularly monitored with a multidisciplinary approach.


Assuntos
Transplante de Fígado/efeitos adversos , Complicações na Gravidez/etiologia , Adulto , Peso ao Nascer , Cesárea , Feminino , Rejeição de Enxerto/etiologia , Humanos , Hipertensão/etiologia , Recém-Nascido , Recém-Nascido Pequeno para a Idade Gestacional , Trabalho de Parto Prematuro/etiologia , Gravidez , Complicações Cardiovasculares na Gravidez/etiologia , Complicações Infecciosas na Gravidez/etiologia , Resultado da Gravidez , Fatores de Risco , Infecções Urinárias/etiologia , Adulto Jovem
20.
Transplant Proc ; 43(8): 3048-51, 2011 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-21996221

RESUMO

BACKGROUND: Neonates born to mothers, who underwent organ transplantation require close medical monitoring. It is unknown how chronically diseased mother's organs or immunosuppressive drugs affect fetal growth and development; some immunosuppressants are teratogenic and contraindicated during pregnancy. The aim of this study was to determine the prevalence of prematurity and intrauterine growth restriction in neonates born to women who have undergone renal or liver transplantation. METHODS: Our retrospective analysis identified 53 (25 renal and 28 liver) cases of neonates delivered by female graft recipients between January 2005 and December 2009. Hypotrophy was defined as a birth weight<10th percentile for gestational age. We excluded newborns diagnosed with severe hypotrophy (<5th percentile). RESULTS: Neonates born prematurely were predominate in the renal (16/25, 64%), but less than half of the liver cohort (13/28, 46%). Hypotrophy less than the 10th percentile was noted significantly more often among renal than liver recipients; 36% versus 14% (P<.05). Severe hypotrophy was also observed significantly more often among renal than liver transplant neonates: 28% versus 3.6% (P<.001). CONCLUSIONS: Compared with liver insufficiency, chronic kidney diseases have stronger effects on the fetus, leading to adverse neonatal complications. A greater prevalence of preterm births, as well as hypotrophic newborns, especially less than the 5th percentile, was observed among neonates delivered by mothers after kidney transplantation.


Assuntos
Retardo do Crescimento Fetal/etiologia , Transplante de Rim/efeitos adversos , Transplante de Fígado/efeitos adversos , Complicações na Gravidez/etiologia , Nascimento Prematuro/etiologia , Peso ao Nascer , Feminino , Humanos , Hipertensão/etiologia , Imunossupressores/efeitos adversos , Recém-Nascido , Recém-Nascido Pequeno para a Idade Gestacional , Gravidez , Complicações Cardiovasculares na Gravidez/etiologia , Estudos Retrospectivos , Fatores de Risco
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