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1.
Int J Mol Sci ; 25(13)2024 Jun 28.
Artículo en Inglés | MEDLINE | ID: mdl-39000274

RESUMEN

Understanding the molecular factors involved in the development of uterine myomas may result in the use of pharmacological drugs instead of aggressive surgical treatment. ANG1, CaSR, and FAK were examined in myoma and peripheral tissue samples taken from women after myoma surgery and in normal uterine muscle tissue samples taken from the control group. Tests were performed using tissue microarray immunohistochemistry. No statistically significant differences in ANG1 expression between the tissue of the myoma, the periphery, and the normal uterine muscle tissue of the control group were recorded. The CaSR value was reduced in the myoma and peripheral tissue and normal in the group of women without myomas. FAK expression was also lower in the myoma and periphery compared to the healthy uterine myometrium. Calcium supplementation could have an effect on stopping the growth of myomas.


Asunto(s)
Quinasa 1 de Adhesión Focal , Leiomioma , Receptores Sensibles al Calcio , Neoplasias Uterinas , Adulto , Femenino , Humanos , Persona de Mediana Edad , Quinasa 1 de Adhesión Focal/metabolismo , Quinasa 1 de Adhesión Focal/genética , Inmunohistoquímica , Leiomioma/metabolismo , Leiomioma/patología , Leiomioma/genética , Miometrio/metabolismo , Miometrio/patología , Receptores Sensibles al Calcio/metabolismo , Receptores Sensibles al Calcio/genética , Neoplasias Uterinas/metabolismo , Neoplasias Uterinas/patología , Neoplasias Uterinas/genética
2.
Ginekol Pol ; 89(3): 115-119, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29664545

RESUMEN

OBJECTIVES: Chlamydial infection is often asymptomatic. The lack of symptoms may result in the infection developing into a chronic. Chlamydial infections of the genitourinary system in women can lead to serious complications like PID, fallopian tubes infertility, ectopic pregnancy, and chronic pelvic pain. An infection of the genitourinary system does not cause any lasting immune resistance and does not protect against re-infection. The aim of this research was to conduct tests for Chlamydia trachomatis on healthy women without any genital system symptoms and to estimate the frequency of asymptomatic infections. MATERIAL AND METHODS: During preventive examinations a cervical smear was obtained from the patients n = 100. The aver-age age of the patients was 24.86 ± 3.15. The swabs were sampled by gynecologists. During the examinations Geneproof PathogenFree DNA isolation Kit and GeneProof Chlamydia trachomatis PCR kit which detects 16S rRNA conservative coding sequence, conservative region of cryptic plasmid DNA, including deletion mutation in cryptic plasmid (Swedish variant). RESULTS: Swabs were sampled from 100 women aged 18-32 who had no symptoms of chlamydial genitourinary system infection. Within the study group 4% of women received a positive result, i.e. 4/100. CONCLUSIONS: The study confirmed asymptotic infection in 4% of women. In own research it was not possible to confirm cor-relation between the presence of Chlamydia trachomatis and the number of partners or the number of sexual intercourses.


Asunto(s)
Infecciones Asintomáticas/epidemiología , Infecciones por Chlamydia/diagnóstico , Infecciones por Chlamydia/epidemiología , Chlamydia trachomatis/genética , Adolescente , Adulto , Femenino , Humanos , Reacción en Cadena de la Polimerasa , Prevalencia , Adulto Joven
3.
Nutrients ; 14(16)2022 Aug 17.
Artículo en Inglés | MEDLINE | ID: mdl-36014877

RESUMEN

One of the many factors involved in the development of uterine fibroids is vitamin D deficiency. One aspect of this deficiency is decreased serum concentration of calcidiol-25(OH)D, a metabolite of D3 vitamin. The active form of vitamin D3, which arises after numerous enzymatic reactions, is calcitriol-1,25(OH)2D3; this compound is transported to various body tissues. Vitamin D possesses extra-genomic effects due to its influence on various signaling pathways, i.e., through activating tyrosine kinases and by genomic effects via binding to a specific nuclear receptor, vitamin D receptor (VDR). The vitamin D/VDR complex regulates the expression of genes and is involved in the pathogenesis of fibroids. Numerous studies have shown that vitamin D supplementation reduces fibroid size. It has also been shown that the expression of VDR in myoma tissue is significantly lower than in the uterine muscle tissue at the tumor periphery. However, the expression of VDR in non-myoma uterine muscle has not previously been investigated. Our VDR expression studies were performed immunohistochemically with tissue microarrays (TMA) in three tissue groups: 98 uterine myoma tissues, 98 uterine tissues (tumor margin), and 12 tissues of normal uterine muscle (i.e., without fibroids). A statistical analysis showed significantly lower VDR expression in uterine muscle at the periphery of the fibroid than in healthy uterine muscle. Lower expression of VDR at the periphery of the myoma compared to that in normal uterine muscle may indicate potential for new myomas. This observation and the described reduction in the size of fibroids after vitamin D supplementation supports the hypothesis of causal development of uterine fibroids and may be useful for the prevention of re-development in the event of their excision from the uterus.


Asunto(s)
Leiomioma , Receptores de Calcitriol , Colecalciferol , Femenino , Humanos , Inmunohistoquímica , Leiomioma/genética , Leiomioma/metabolismo , Receptores de Calcitriol/biosíntesis , Receptores de Calcitriol/genética , Vitamina D , Deficiencia de Vitamina D/genética , Deficiencia de Vitamina D/metabolismo
4.
Adv Clin Exp Med ; 30(10): 1057-1064, 2021 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-34510841

RESUMEN

BACKGROUND: Endometrial cancers (EC) are a heterogeneous group of malignant neoplasms differing in etiology, clinical-pathological features and prognosis. OBJECTIVES: To determine the differences between the expression of selected molecular factors and find connections between them in order to isolate possible biomarkers influencing treatment options. MATERIAL AND METHODS: The investigated data involved archival histological preparations obtained from uterine EC samples taken from 137 patients, treated surgically between 2007 and 2014. The immunohistochemical Dako EnVisionTM Flex+ method was applied. RESULTS: The expression of ERß, MLH1 and BRCA1 was lower in ECI than in ECII patients. The ERα expression was higher in early Fédération internationale de gynécologie et d'obstétrique (FIGO) (IA) stages than in advanced (IB-IV) stages, while ERß expression was significantly higher in advanced stages compared to stage IA and increased with grading. The BRCA1 expression also increased with grading. In both type I and type II EC patients, ERα expression correlated with MYH9 and BRCA1, while ERß expression correlated with BAP expression. High expression of BRCA1 correlated with several proteins: BAP, MYH9 and FAK. High BAP expression also correlated with high MYH9 expression. A correlation in the expression of these proteins was also demonstrated in the group consisting only of patients with ECI. A significant correlation was found between BAP expression and MYH9 among patients diagnosed with ECI. In the ECII group, no correlation was found between the tested proteins. CONCLUSIONS: The ECI and ECII patients differed in the studied molecular factors, mainly in terms of ER and BRCA1 expression. Changes in BRCA1 expression were linked to alterations in BAP expression, but were also associated with the proteins MYH9 and FAK.


Asunto(s)
Neoplasias Endometriales , Neoplasias Endometriales/genética , Neoplasias Endometriales/patología , Femenino , Humanos , Estadificación de Neoplasias , Pronóstico
5.
Adv Clin Exp Med ; 29(6): 707-713, 2020 06.
Artículo en Inglés | MEDLINE | ID: mdl-32589825

RESUMEN

BACKGROUND: Chlamydia trachomatis (C. trachomatis) and Streptococcus agalactiae (GBS) may be present in the female cervical canal without any symptoms of infection. Chronic chlamydial infections lead to many serious complications and perinatal infections, while the presence of GBS is a reservoir for infections of newborns or invasive streptococcal infection in adults. OBJECTIVES: To examine healthy women for C. trachomatis without symptoms from the reproductive system, assess the frequency of asymptomatic infections, detect GBS in the cervical canal, demonstrate differences in drug susceptibility, and determine the serotype of S. agalactiae strains and correlations among the ones present in the cervical canal. MATERIAL AND METHODS: A total of 315 cervical swabs were collected for genetic and microbiological analysis for the presence of C. trachomatis and S. agalactiae. Latex and diffusion-disk methods were used to determine the serotype and susceptibility of streptococci. RESULTS: Ten out of 315 women (3.2%) were C. trachomatis-positive. Using traditional methods of microscopy, culture and serology, 42 strains (13.3% of the subjects) obtained from patients were identified as S. agalactiae and further analyzed. The most common serotypes identified were II (18/42, 42.9%), V (11/42, 26.2%) and III (10/42, 23.8%). The less common serotypes found were VII (2/10, 4.8%), and Ib (1/10, 2.4%); no Ia, IV or VII serotypes were found. All the strains were susceptible to penicillin, while 71.4% of them were susceptible to erythromycin and 81.0% were susceptible to clindamycin. Seven isolates (16.7%) were concomitantly resistant to erythromycin and clindamycin. CONCLUSIONS: Chlamydia trachomatis was confirmed in 3.2% of the respondents, and GBS was found in 13.3%, despite a lack of symptoms of infection. The incidence of C. trachomatis infections and GBS colonization in Poland is similar to those in other European countries.


Asunto(s)
Infecciones por Chlamydia , Chlamydia trachomatis , Infecciones Estreptocócicas , Streptococcus agalactiae , Adulto , Antibacterianos/farmacología , Antibacterianos/uso terapéutico , Infecciones por Chlamydia/diagnóstico , Infecciones por Chlamydia/tratamiento farmacológico , Infecciones por Chlamydia/epidemiología , Chlamydia trachomatis/aislamiento & purificación , Farmacorresistencia Bacteriana , Femenino , Humanos , Recién Nacido , Pruebas de Sensibilidad Microbiana , Polonia/epidemiología , Embarazo , Infecciones Estreptocócicas/diagnóstico , Infecciones Estreptocócicas/tratamiento farmacológico , Infecciones Estreptocócicas/epidemiología , Streptococcus agalactiae/aislamiento & purificación
6.
Int J Gynecol Cancer ; 19(8): 1322-8, 2009 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-20009884

RESUMEN

INTRODUCTION: The modification of p53 protein by phosphorylation plays an important role in its stabilization and the regulation of its biological properties. The study investigated the expression of p53 protein phosphorylated at serine 20 (Ser20) and Ser392 and the association between clinicopathological parameters of ovarian neoplasms with respect to p53 protein overexpression. METHODS: p53 protein expression was evaluated on tissues from malignant and benign ovarian tumors. Protein expression was measured in a subset of the specimens using immunohistochemistry. RESULTS: The correlation between p53 protein overexpression and p53-Ser392 phosphorylation was found in ovarian carcinomas (P = 0.001, r = +0.27). In the total group of ovarian carcinomas, significant differences were observed in p53 protein overexpression between well (G1) and poor (G3) tumor grades (P = 0.005) and between serous and endometrioid types of tumor (P = 0.04), whereas p53-Ser20 phosphorylation was associated with advanced International Federation of Gynecology and Obstetrics stage (P = 0.004) and high tumor grade (P = 0.02). In p53-positive ovarian carcinomas, p53-Ser392 phosphorylation was associated with advanced tumor stage (P = 0.02) and high tumor grade (P = 0.049). p53-Ser20 phosphorylation was associated with low tumor grade of p53-positive ovarian carcinomas (P = 0.02) and with high tumor grade of p53-negative ovarian carcinomas (P = 0.02). CONCLUSIONS: These results revealed that p53 phosphorylation at Ser20 and Ser392 is an early event in ovarian tumor development. The authors suggest that the expression of p53 protein phosphorylated at Ser20 and Ser392 in ovarian carcinomas determines their individual clinical features depending on p53 protein status and may be useful biological biomarkers characterizing their behavior.


Asunto(s)
Adenocarcinoma Mucinoso/metabolismo , Cistadenocarcinoma Seroso/metabolismo , Neoplasias Endometriales/metabolismo , Neoplasias/metabolismo , Neoplasias Ováricas/metabolismo , Serina/metabolismo , Proteína p53 Supresora de Tumor/metabolismo , Adenocarcinoma Mucinoso/secundario , Adulto , Anciano , Cistadenocarcinoma Seroso/secundario , Neoplasias Endometriales/secundario , Femenino , Humanos , Técnicas para Inmunoenzimas , Persona de Mediana Edad , Estadificación de Neoplasias , Neoplasias/patología , Neoplasias Ováricas/patología , Fosforilación , Pronóstico , Serina/química , Adulto Joven
7.
Wiad Lek ; 62(1): 21-5, 2009.
Artículo en Polaco | MEDLINE | ID: mdl-19817253

RESUMEN

Antiphospholipid syndrome is an autoimmunological disease, characterized by coexistence of antiphospholipid antibodies in serum and vascular thrombosis or characteristic obstetrical complications. In spite of numerous clinical trials concerning antiphospholipid syndrome in pregnancy, performed in Poland as well as abroad, there are still some unclear aspects connected with this disease. In the paper, authors pay particular attention to patomechanism and contemporary diagnostic trends of antiphospholipid syndrome in pregnancy.


Asunto(s)
Síndrome Antifosfolípido/diagnóstico , Complicaciones del Embarazo/diagnóstico , Adulto , Anticuerpos Antifosfolípidos/sangre , Síndrome Antifosfolípido/inmunología , Femenino , Humanos , Embarazo , Complicaciones del Embarazo/inmunología
8.
Ginekol Pol ; 90(10): 571-576, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31686413

RESUMEN

OBJECTIVES: Endometrial cancers (ECs) are the most common gynaecological cancers in well developed countries. Diabetes and metabolic syndrome are among the biggest risk factors. Nesfatin-1, the adipokine derivative of NUCB2 (nucleobindin derivative 2) is linked to the clinical course of EC. Molecular factors, including mutations in MLH1 and MHS2 genes, c-MET and ARID1A are also related to prognosis in endometrial cancer. MATERIAL AND METHODS: Using sections of paraffin-embedded preparations and immunohistochemistry, the expression of NESF1, MLH1, MSH2,c-MET and ARID1A were examined. RESULTS: In this study on protein expression, EC tissues manifested (although insignificantly) an elevated expression of NESF-1 in type II EC. In type I EC, NESF-1 expression was significantly higher in G1 in comparison to G2 and G3 together. A significantly lower expression of MLH1 was demonstrated in type I EC. CONCLUSIONS: The most pronounced expression involved c-MET in all EC I and EC II tissues (in over 80% of cases). A tendency was detected for a high expression of NESF-1 in patients with type II EC, who also exhibited a high expression of MSH2.


Asunto(s)
Neoplasias Endometriales/clasificación , Neoplasias Endometriales/metabolismo , Nucleobindinas/metabolismo , Adulto , Anciano , Anciano de 80 o más Años , Biomarcadores de Tumor , Proteínas de Unión al ADN/análisis , Proteínas de Unión al ADN/metabolismo , Neoplasias Endometriales/química , Neoplasias Endometriales/diagnóstico , Femenino , Humanos , Inmunohistoquímica , Persona de Mediana Edad , Nucleobindinas/análisis , Pronóstico , Estudios Retrospectivos , Factores de Transcripción/análisis , Factores de Transcripción/metabolismo
9.
Adv Med Sci ; 64(2): 235-240, 2019 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-30822630

RESUMEN

PURPOSE: Cerebral metastases develop in 10-30% of patients with breast cancer (BC) and in around 3.3 to 4% of patients with ovarian cancer (OC). The aim of the multicenter study is to investigate the correlation between the expression of estrogen alpha receptors (ERα), progesterone receptors (PR), human epidermal growth factor receptor 2 (HER2), stromal cell-derived factor 1 (SDF1) and its receptor C-X-C chemokine receptor type 4 (CXCR4), breast cancer metastasis suppressor 1 (BRMS1), astrocyte elevated gene 1 (AEG1), depending on the status of BRCA1 protein, in patients suffering from OC and BC with brain metastases. PATIENTS AND METHODS: The analysis included 51 patients: 29 with BC and 22 with OC, in whom brain metastases were disclosed. RESULTS: In most patients (65.5% of BC patients and 68.2% of patients with OC tumors) BRCA1 protein loss was found. No correlation was disclosed between the levels of ERα, PR receptors, HER2, SDF1, CXCR4, AEG1, BRMS1 and BRCA1 status, patient age, stage of disease advancement, grade of histological maturity of the cells, presence of metastases to lymph nodes. A statistically significant correlation was disclosed between the negative expression of PR receptors and a high expression of CXCR4 in patients with BC. High values of the AEG1 protein (linked to metastases) were detected alongside a high expression of BRMS1 (a suppressor of metastases). CONCLUSIONS: Patients with BC and OC and brain metastases have a frequent loss of BRCA1 expression. The role of ERα, PR, HER2, SDF1, CXCR4, AEG1, BRMS1 in metastatic process needs further studies.


Asunto(s)
Proteína BRCA1/metabolismo , Neoplasias Encefálicas/metabolismo , Neoplasias Encefálicas/secundario , Neoplasias de la Mama/complicaciones , Neoplasias de la Mama/metabolismo , Neoplasias Ováricas/complicaciones , Neoplasias Ováricas/metabolismo , Proteína BRCA1/genética , Femenino , Regulación Neoplásica de la Expresión Génica/genética , Humanos , Inmunohistoquímica
10.
Wiad Lek ; 61(10-12): 273-6, 2008.
Artículo en Polaco | MEDLINE | ID: mdl-19323068

RESUMEN

Considering multidirectional mechanism of antiphospholipid antibodies activity, resulting in fetal loss, various therapeutic methods of antiphospholipid syndrome (APS) in pregnant women have been used until now. The paper is a review of literature concerning therapeutic methods of APS in pregnancy currently used or being clinically and experimentally investigated. Their efficacy, in particular, forms of the disease as well as risk of side effects occurrence were presented.


Asunto(s)
Síndrome Antifosfolípido/terapia , Complicaciones del Embarazo/terapia , Animales , Anticoagulantes/uso terapéutico , Femenino , Glucocorticoides/uso terapéutico , Heparina/uso terapéutico , Humanos , Factores Inmunológicos/uso terapéutico , Plasmaféresis , Inhibidores de Agregación Plaquetaria/uso terapéutico , Embarazo
11.
Wiad Lek ; 60(9-10): 445-8, 2007.
Artículo en Polaco | MEDLINE | ID: mdl-18350719

RESUMEN

Chlamydia trachomatis is one of the most common sexually transmitted human pathogens. Chlamydial infection is a problem concerning about 12% of young, sexually active persons at reproductive age. Because of subtle or, particularly at women, asymptomatic course, the disease may be imperceptible by patients and untreated until complications occur. When the infection spreads outside cervix and urethra,W irreversible damages in the range of genital-urinary system are often. Fever and leucocytosis can confirm the complications, occurring in the form of pelvic inflammatory disease, causing infertility. Health education, screening programs for high risk patients and proper early treatment of both sexual partners could contribute to decreasing dangerous results of chlamydial infections, especially in aspect of marital infertility problem.


Asunto(s)
Infecciones por Chlamydia/complicaciones , Infecciones por Chlamydia/diagnóstico , Chlamydia trachomatis/aislamiento & purificación , Infertilidad/microbiología , Enfermedad Inflamatoria Pélvica/microbiología , Femenino , Humanos , Infertilidad/prevención & control , Leucocitosis , Masculino , Tamizaje Masivo
12.
Wiad Lek ; 60(7-8): 377-80, 2007.
Artículo en Polaco | MEDLINE | ID: mdl-18175559

RESUMEN

Mycoplasmas belong to the large group of microbes and may cause pathologic symptoms in different human organs and systems. The most of them are commensals. They are mostly detected in sexually active persons. Only few of mycoplasmatic species are unquestionable etiological factors of different human infections. They cause illness of respiratory system and kidneys. They are frequently connected with nongonococcal urethritis, epididymitis, prostatitis as well as female pelvic inflammatory disease. Mycoplasmas as etiological factors of genital organ infections have been kept in background of other pathogens for a long time. Recently, the connection between mycoplasmatic infections and marital infertility has been noticed more often. Nowadays this problem is frequently described in Polish as well as foreign scientific literature. The article is an attempt to introduce the problem of mycoplasmatic infections of urogenital male and female system. Simultaneously, it tries to answer the question whether and how they can be an essential cause of marital infertility.


Asunto(s)
Enfermedades Urogenitales Femeninas/microbiología , Infertilidad/microbiología , Enfermedades Urogenitales Masculinas/microbiología , Infecciones por Mycoplasma/complicaciones , Femenino , Humanos , Masculino
13.
Ginekol Pol ; 77(12): 952-6, 2006 Dec.
Artículo en Polaco | MEDLINE | ID: mdl-17373122

RESUMEN

A case of Edwards' syndrome (trisomy 18) diagnosed in the third pregnancy trimester is described. The diagnosis was based on sonographic examination and cytogenetic amniocentesis. Lethal genetic fetal malformation determined the medical indication to preterm delivery. Additionally, serologic incompatibility during pregnancy was observed, as well as pregnancy induced hypertension turning into preeclampsia after the labour action was evoked. A caesarean section due to obstetric indications was done. Phenotype and lethal congenital malformations in the newborn have confirmed of the chromosome aberration prenatally diagnosed.


Asunto(s)
Anomalías Múltiples/diagnóstico , Incompatibilidad de Grupos Sanguíneos/diagnóstico , Cromosomas Humanos Par 18 , Preeclampsia/diagnóstico , Trisomía/diagnóstico , Adulto , Femenino , Humanos , Recién Nacido , Embarazo , Tercer Trimestre del Embarazo , Diagnóstico Prenatal , Síndrome
14.
Ginekol Pol ; 77(2): 134-7, 2006 Feb.
Artículo en Polaco | MEDLINE | ID: mdl-16736971

RESUMEN

The Kearn-Sayre's syndrome is an uncommon, non-hereditary disease which belongs to the group of mitochondrial myopathy. The characteristic symptoms of this syndrome often appear before the age of 20. In this report we describe the outcome of primigravid pregnancy of a 33 year old woman with early diagnosed Kearn-Sayre's syndrome.


Asunto(s)
Síndrome de Kearns-Sayre/diagnóstico , Complicaciones del Embarazo/diagnóstico , Resultado del Embarazo , Adulto , Cesárea , Diabetes Gestacional/diagnóstico , Diagnóstico Diferencial , Diagnóstico Precoz , Femenino , Humanos , Recién Nacido , Embarazo
16.
Ginekol Pol ; 76(8): 625-31, 2005 Aug.
Artículo en Polaco | MEDLINE | ID: mdl-16363368

RESUMEN

OBJECTIVES: There are some data concerning magnesium concentration influence on the risk of preterm labor. The estimation of magnesium concentration changes may be useful in prevention of preterm labor. DESIGN: Therefore the aim of our study was to find out the correlation between magnesium concentration and the risk of preterm labor. MATERIALS AND METHODS: Total magnesium concentration and ionized magnesium concentration in blood plasma and erythrocytic magnesium concentration ware examined in the three groups of: 23 women in the third trimester of pregnancy with imminent preterm labor under tocolytic therapy; 20 women in the third trimester of physiologic pregnancy and 19 non-pregnant healthy women in the reproductive age. RESULTS: We discovered statistically confirmed differences (p < 0,05 ) in ionized magnesium concentration as well between the group of women in physiologic pregnancy and non-pregnant women and between the group of pregnant women with imminent preterm labor and non-pregnant women. CONCLUSIONS: Although there were no statistically confirmed differences in total magnesium concentration and erythrocytic magnesium concentration between the three groups of examined women, there were statistically confirmed differences in ionized magnesium concentration between the pregnant and non-pregnant women. Our results suggest that ionized magnesium concentration is better indicator of magnesium balance in human's body than total magnesium concentration.


Asunto(s)
Eritrocitos/metabolismo , Deficiencia de Magnesio/sangre , Magnesio/sangre , Trabajo de Parto Prematuro/sangre , Tercer Trimestre del Embarazo/sangre , Adolescente , Adulto , Estudios de Casos y Controles , Femenino , Humanos , Recién Nacido , Trabajo de Parto Prematuro/prevención & control , Embarazo , Resultado del Embarazo , Factores de Riesgo
17.
Ginekol Pol ; 76(7): 586-92, 2005 Jul.
Artículo en Polaco | MEDLINE | ID: mdl-16363387

RESUMEN

The authors expounded present state of knowledge concerning immunosuppressive drugs therapy during pregnancy after kidney transplantation. Pregnancy is uncommon in women with end-stage renal disease treated with dialysis and in most cases it ends with pregnancy failure. Resuming the normal function of the ovaries after kidney transplantation substantially increases the chances of conception and successful pregnancy. The immunosuppression scheme and dosage of drugs used in pregnant women are vital to both the normal course of pregnancy and delivery of a healthy child. Considering the safety of the fetus it is acceptable to use prednisone, azathioprine, cyclosporine and tacrolimus. Due to the necessity to administer immunosuppressive drugs in relatively small doses, an important factor conditioning the normal course of pregnancy is maintaining a 1- or 2-year interval between the kidney transplantation and the conception.


Asunto(s)
Inmunosupresores/administración & dosificación , Fallo Renal Crónico , Trasplante de Riñón , Complicaciones del Embarazo/tratamiento farmacológico , Azatioprina/uso terapéutico , Ciclosporina/uso terapéutico , Femenino , Humanos , Terapia de Inmunosupresión/efectos adversos , Inmunosupresores/efectos adversos , Recién Nacido , Fallo Renal Crónico/cirugía , Prednisona/uso terapéutico , Embarazo , Complicaciones del Embarazo/etiología , Embarazo de Alto Riesgo , Tacrolimus/uso terapéutico
18.
J Exp Ther Oncol ; 3(6): 319-24, 2003.
Artículo en Inglés | MEDLINE | ID: mdl-14678520

RESUMEN

BACKGROUND: Degradation of the basement membrane and surrounding extracellular matrix is likely to represent a key step in cancer invasion and metastasis. The purpose of this study was to determine whether gastric cancer tissues demonstrate higher cysteine proteases activities: cathepsins B and L during cancer progression in compression with non-cancerous tissues. METHODS: We measured the expression of both cathepsins B and L in 30 patients with gastric cancer tissues and non-cancerous tissues activities by a fluorescence assay and immunohistochemical staining. We attempted to regulate cathepsin B and L expression using egg white cystatin. RESULTS: The activities of cathepsins B and L were significantly higher in cancerous than in non-cancerous tissues (P

Asunto(s)
Catepsina B/metabolismo , Catepsinas/metabolismo , Cistatinas/farmacología , Inhibidores de Cisteína Proteinasa/farmacología , Neoplasias Gástricas/metabolismo , Adulto , Anciano , Catepsina B/efectos de los fármacos , Catepsina L , Catepsinas/efectos de los fármacos , Cisteína Endopeptidasas , Femenino , Regulación Neoplásica de la Expresión Génica , Humanos , Inmunohistoquímica , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Neoplasias Gástricas/patología
19.
J Exp Ther Oncol ; 3(2): 95-102, 2003.
Artículo en Inglés | MEDLINE | ID: mdl-12822515

RESUMEN

Cysteine cathepsin B and its endogenous inhibitor play an important role in tumor progression. Increase in cathepsin B expression and reduced levels of its inhibitors were associated with tumor malignancy in breast cancer. The objective of this study was to investigate the effects of a new therapy combining vitamin E and placental inhibitor on the level of endogenous protease inhibitor in sera and tumor tissues with mammary cancer. The inhibitor was used in doses of 100 and 200 micrograms per animal for 8 days. Vitamin E was added after the last treatment with inhibitor and was injected daily in doses of 10 and 20 mg per animal for one mouth. The size and survival time of treated animals as well as cathepsin B and the inhibitor activity in tumor and sera before and after treatment in comparison with the control groups were determined. The activity of cathepsin B significantly decreased both in tumor tissues and in sera (P < or = 0.0001). Cathepsin B activity in tumor tissue homogenates and in sera decreased two-fold and three-fold, respectively, after the animals were treated with vitamin E at a dose of 20 mg, and decreased five-fold and 15-fold, respectively, when treated with vitamin E plus inhibitor in comparison with untreated animals. Endogenous inhibitor activity increased six-fold and 12-fold in the sera and tissue homogenates, respectively, after the animals were treated with 200 micrograms of cysteine protease inhibitor plus 20 mg of vitamin E, in comparison with untreated animals. The total cure responses were higher in eight of 10 rats, as compared with untreated animals. The combination of placental inhibitor and vitamin E resulted in a significant reduction in breast metastasis and might provide a therapeutic basis for anti-metastasis therapy.


Asunto(s)
Inhibidores Enzimáticos/uso terapéutico , Placenta/enzimología , Vitamina E/uso terapéutico , Animales , Carcinoma , Catepsina B/metabolismo , Inhibidores de Cisteína Proteinasa/farmacología , Inhibidores Enzimáticos/farmacología , Femenino , Humanos , Modelos Biológicos , Metástasis de la Neoplasia , Trasplante de Neoplasias , Ratas , Ratas Wistar , Factores de Tiempo
20.
Folia Histochem Cytobiol ; 41(3): 161-7, 2003.
Artículo en Inglés | MEDLINE | ID: mdl-13678335

RESUMEN

Cysteine peptidases and their endogenous inhibitors (CPI) have been shown to be involved in tumor progression and metastasis. Since their activity has been found to be changed in tumor tissue and/or body fluids of cancer patients, the determination of the peptidase/inhibitor levels is considered as a procedure of diagnostic value. Determination of cathepsin B, its precursor and inhibitor activity in homogenates of tumors and control breast tissue samples of patients with invasive ductal and lobular breast carcinoma and with benign breast disease (BBD) was performed using fluorometric assay. Immunohistochemical staining of the breast tissue samples was carried out using polyclonal antibody against cysteine peptidase inhibitor isolated from human placenta. Procathepsin B and cathepsin B were found to be significantly increased and their endogenous inhibitors decreased in homogenates of tumors from patients with breast cancer. A correlation between procathepsin B or cathepsin B activities as well as cysteine peptidase inhibitor activity and the histopathological grading of the tumor was observed. All samples of the tumor tissue showed positive immunostaining with antibody raised against cysteine peptidase inhibitor, while in the control tissue samples the immunostaining was much weaker. Significant difference observed between the activities of cathepsin B and/or its precursor in malignant and benign tumors might serve as a useful clinical indicator in discrimination between benign and invasive tumors.


Asunto(s)
Neoplasias de la Mama/metabolismo , Catepsina B/metabolismo , Inhibidores de Cisteína Proteinasa/metabolismo , Placenta/metabolismo , Mama/citología , Mama/metabolismo , Neoplasias de la Mama/patología , Catepsina B/antagonistas & inhibidores , Femenino , Humanos , Placenta/química
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