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1.
Eur J Obstet Gynecol Reprod Biol X ; 21: 100276, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38323103

RESUMEN

Objective: This study aims to compare the perinatal outcomes of emergency and elective cervical cerclages. Material and Methods: This retrospective study included a total of 247 patients, with a total of 142 emergency (with a history of mid-trimester miscarriage or vaginal delivery of < 34 weeks and cervical length < 25 mm) and 105 electives cerclage patients (with painless cervical dilation and cervical length <25 mm) who had cerclage with the vaginal cervical McDonald technique between 1.1.2017-1.10.2022. Pregnant women with normal screening tests at weeks 11-14, normal fetal morphology, and singleton pregnancies were included in the study. The study was conducted in a tertiary center providing NICU care for < 1500 g, less than 32 weeks of age, and on a mechanical ventilator. Obstetric and perinatal outcomes were reviewed. Results: There was no statistical difference between the two groups regarding maternal age or BMI. It was observed that the week of delivery was greater for elective cerclages than for emergency cerclages (mean 34.6 GW versus 30.8 GW). The week of cerclage application was statistically higher in emergency cerclage (19.2 GW versus 16.3 GW p < 0.000). In addition, when we evaluated perinatal complications: prenatal Ex (n34 vs. n8 p < 0.001), C-reactive protein which is a marker of neonatal infection (12.7 mg/L vs. 2.5 mg/L p < 0.022), antibiotic use in the NICU (n 35 vs. n23 p < 0.050), the number of days of antibiotic use in the NICU (mean 15.3 days vs. 10.4 days p < 0.024), rate of NICU intubation (n 27 vs. n 11 p < 0.003), and neonatal sequelae (n 16 vs. n 6 p < 0.016) were significantly higher in the emergency cerclage group than in the elective cerclage group. There was no found significant difference between the progesterone given and not given progesterone after the procedure in term of the weeks of delivery (p < 0.810 emergency cervical cerclage; p < 0681 elective cervical cerclage). Conclusion: Considering the available information, the results of elective cerclage seem to be more beneficial for the patient than those of emergency cerclage. Therefore, it would be more reasonable to perform elective cerclage in patients with mid-trimester or preterm miscarriage and concomitant cervical shortening before emergency cerclage is required. Furthermore, the benefit of progestin, in addition after surgical intervention, has not been established.

2.
Arch Gynecol Obstet ; 287(4): 729-32, 2013 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-23179805

RESUMEN

PURPOSE: Aim of the present study is to determine the effects of bipolar electrocoagulation and intracorporeal suture on the ovarian reserve after ovarian cystectomy. METHODS: Sixty patients aged 18-42 years old and with a persistent adnexal mass were recruited to the study. Patients were randomized into suture hemostasis group or bipolar hemostasis group. Laparoscopic ovarian cystectomy was performed to all patients. Hemostasis was obtained by bipolar coagulation in 30 patients and by intracorporeal sutures in 30 patients. Serum levels of FSH, LH, estradiol, inhibin B and ultrasonographic measurements (antral follicle count and ovarian volume) were analyzed and recorded at day 3 of menstrual cycle, 1 and 3 months after the surgery. RESULTS: Basal FSH level measurement at the postoperative third month was significantly increased to 6.96 ± 1.86 mIU/ml (p < 0.05) in the bipolar electrocoagulation group. However, the decreased ovarian volume and antral follicle count was restored at the postoperative third month in the bipolar electrocoagulation group. Preoperative and postoperative FSH, LH, estradiol and inhibin B levels and ultrasonographic measurements were similar in the intracorporeal suture group. CONCLUSION: The unwanted effect of bipolar electrocoagulation on ovarian reserve is probably transient and causes minimal damage to ovary. FSH levels may be slightly elevated. Gentle use of bipolar electrocoagulation or intracorporeal are not found to effect ovarian reserve.


Asunto(s)
Electrocoagulación/efectos adversos , Técnicas Hemostáticas/efectos adversos , Quistes Ováricos/cirugía , Ovario/cirugía , Técnicas de Sutura/efectos adversos , Adolescente , Adulto , Femenino , Humanos , Laparoscopía , Ovario/fisiología , Adulto Joven
3.
Arch Gynecol Obstet ; 288(3): 501-5, 2013 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-23460086

RESUMEN

PURPOSE: The present study was designed to examine apoptotic cell death via the caspase-dependent pathway in human fetal membranes. METHODS: Amniotic membrane samples were collected from three groups of women: group 1, women with preterm premature rupture of fetal membranes (PPROM) after cesarean delivery (n = 10), group 2, women with preterm labor (PTL) with intact membranes after cesarean delivery (n = 9) and group 3, women with term labor and vaginal delivery after an uncomplicated pregnancy (controls) (n = 11). RESULTS: Active caspase-3 immunopositivity (ACPI) of the PPROM group was significantly higher than that of the control group (p < 0.05). ACPI was higher in the PTL with intact membranes group as compared to the control group; however, it did not reach statistical significance (p > 0.05). CONCLUSION: Active caspase-3 positivity is increased in the fetal membranes of those women with PPROM.


Asunto(s)
Apoptosis , Caspasa 3/metabolismo , Rotura Prematura de Membranas Fetales/etiología , Adolescente , Adulto , Estudios de Casos y Controles , Membranas Extraembrionarias/enzimología , Femenino , Rotura Prematura de Membranas Fetales/enzimología , Humanos , Embarazo , Adulto Joven
4.
Ann Ital Chir ; 94: 493-497, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38051501

RESUMEN

AIM: The aim of this study was to assess the postoperative results of patients who underwent myomectomy during caesarean section in a tertiary center, to investigate whether cesarean myomectomy leads to increased morbidity and to contribute to the literature. MATERIALS AND METHODS: This study was designed retrospectively and conducted to compare the preoperative and postoperative results of 121 patients who underwent myomectomy during cesarean and 149 patients who had only cesarean section in a tertiary center between 1.1.2020-1.1.2022. RESULTS: Although the study did not show a significant prolongation in terms of operative time, a significant relationship was found in the length of hospital stay. Hemoglobin levels after myomectomy were significantly lower than the group without myomectomy in the study. Additionally, preterm delivery rate was higher in the myomectomy group. CONCLUSION: As this study showed us a significant decrease in hemoglobin levels after cesarean and myomectomy, it is appropriate to perform this operation, when necessary, by experienced surgeons and in tertiary centers. KEY WORDS: Cesarean section, Myomectomy, Myomectomy during cesarean section.


Asunto(s)
Leiomioma , Complicaciones Neoplásicas del Embarazo , Miomectomía Uterina , Neoplasias Uterinas , Recién Nacido , Humanos , Embarazo , Femenino , Miomectomía Uterina/métodos , Estudios Retrospectivos , Leiomioma/cirugía , Neoplasias Uterinas/cirugía , Cesárea , Centros de Atención Terciaria , Complicaciones Neoplásicas del Embarazo/cirugía , Hemoglobinas
5.
Rev Bras Ginecol Obstet ; 45(12): e764-e769, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-38141596

RESUMEN

OBJECTIVE: The aim of the present study is to compare the effectiveness of Arabin pessary and McDonald cervical cerclage on preterm delivery. METHODS: We conducted a retrospective analysis of data from patients who underwent either Arabin pessary or McDonald cerclage between January 1, 2019, and January 1, 2023. A total of 174 patients were included in the study, with 31 undergoing Arabin pessary and 143 receiving cervical cerclage using the McDonald technique in singleton pregnant women with cervical insufficiency, which applied between 14 and 22 gestational weeks. We included singleton pregnant women with normal morphology, and with normal combined test. The primary outcome was the impact of each method on preterm delivery (< 34 gestational weeks). RESULTS: The weeks of cervical cerclage or pessary application were compatible with each other (p < 0.680). The pessary group had a statistically significant longer time to delivery compared with the Cerclage group (cerclage group mean 30.8 c 7.1 standard deviation [SD] versus pessary group mean 35.1 ± 4.4 SD; p < 0.002). A statistically significant difference was found between the pessary and cerclage groups in terms of delivery at < 34 weeks (p = 0.002). In patients with cervical length between 25 and 15mm and < 15mm, no significant difference was found between the pessary and cerclage groups in terms of delivery week (p < 0.212; p < 0.149). Regardless of the technique applied, no statistically significant difference was observed between cervical length and birth < 34 weeks. CONCLUSION: Our study found that pessary use for cervical insufficiency is statistically more effective than cervical cerclage surgery in preventing preterm births < 34 weeks in singleton pregnancy.


Asunto(s)
Nacimiento Prematuro , Incompetencia del Cuello del Útero , Recién Nacido , Embarazo , Femenino , Humanos , Nacimiento Prematuro/prevención & control , Pesarios , Estudios Retrospectivos , Incompetencia del Cuello del Útero/cirugía , Cuello del Útero/cirugía
6.
Ginekol Pol ; 2023 Apr 12.
Artículo en Inglés | MEDLINE | ID: mdl-37042325

RESUMEN

OBJECTIVES: The aim of this study was to evaluate the trial of labor after caesarean (TOLAC) outcomes and determine its reliability by comparing it with elective repeat caesarean delivery (ERCD) and vaginal delivery. MATERIAL AND METHODS: For this purpose, the outcomes of patients aged 18-40 years who had 57 TOLACs, 72 vaginal deliveries, and 60 elective caesarean sections in Ankara Koru Hospital between January 1, 2019, and January 1, 2022 were compared. RESULTS: Gestational age was lower in the normal vaginal delivery (NVD) group than in the elective caesarean section and vaginal birth after caesarean delivery (VBAC) groups (p < 0.0005). The birth weight was statistically significantly lower in the NVD group than in the elective caesarean section and VBAC groups (p < 0.0002). No statistically significant correlation was found between the BMI values in all three groups (p < 0.586). There was no statistically significant difference between the groups in terms of pre- and post-natal haemoglobin and APGAR scores (p < 0.575)(p < 0.690)(p < 0.747). The rate of epidural and oxytocin use was higher in the NVD group than in the VBAC group (p < 0.001) (p < 0.037). There was no statistically significant correlation between the birth weights of the infants in the TOLAC group and failed VBAC (p < 0.078). No statistically significant correlation was observed between the use of oxytocin for induction and failed VBAC (p < 0.842). There was no statistically significant correlation between epidural anaesthesia and failed VBAC (p < 0.586). A statistically significant correlation was found between gestational age and caesarean section as a result of a failed VBAC (p < 0.020). CONCLUSIONS: The main reason for not preferring TOLAC continues to be uterine rupture. It can be recommended to eligible patients in tertiary centers. Because even when the factors increasing the success of VBAC were excluded, the rate of successful VBAC remained high.

7.
Arch Gynecol Obstet ; 285(3): 757-61, 2012 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-21909751

RESUMEN

OBJECTIVE: Trimetazidine (TMZ) reduces intracellular acidosis and inhibits oxygen-derived free radicals and neutrophile infiltration in ischemia and hypoxia, which are the primary steps of adhesion formation. Our aim is to study the anti-adhesion potential of trimetazidine in a rat uterine horn model. METHODS: Forty non-pregnant female Wistar-Albino rats were randomly assigned, with ten in each group, to receive 2 ml saline, or 5 mg/kg intraperitoneal trimetazidine postoperatively, and control and sham. TMZ was administered to TMZ postoperative group 5 mg/kg i.p. daily for 5 days after the operation. Both uterine horns were exposed, and then a 2 cm segment of the anti-mesenteric surface of both the uterine horns were traumatized in 10 spots with unipolar electrocautery for 2 s with a power of 50 Watts. All the animals were killed by lethal dose of ether on postoperative 14th day. Intraperitoneal adhesions were scored by clinical adhesion scoring system, and histological and morphometric analysis was performed. RESULTS: Total adhesion score (TAS) of control group was 10 while the sham group was found to be 0. TAS of the placebo group that was given saline (TAS 5), and postoperative TMZ applied group (TAS 3.5) were significantly lower than the control group (p < 0.05). The severity scores of postoperative TMZ and sham groups were significantly smaller than the other groups (p < 0.05). CONCLUSION: TMZ significantly reduced the extent and severity of horn adhesions. The promising efficacy demonstrated by the intraperitoneal TMZ in this model warrants further investigation in clinical trials focused on gynecological procedures.


Asunto(s)
Adherencias Tisulares/tratamiento farmacológico , Trimetazidina/uso terapéutico , Vasodilatadores/uso terapéutico , Animales , Femenino , Ratas , Ratas Wistar , Índice de Severidad de la Enfermedad , Útero/efectos de los fármacos , Útero/lesiones
8.
Int J Gynecol Cancer ; 19(3): 375-9, 2009 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-19407562

RESUMEN

The mechanism of tamoxifen-associated endometrial hyperplasia and cancer is not elicited. RAD001 inhibits a target protein in phosphatidyl kinase pathway, which is involved in endometrial hyperplasia and cancer. We investigated whether endometrial hyperplasia can be prevented through inhibition of the target of rapamycin by RAD001. Sixty BALB/c mice underwent oophorectomy and were divided into 6 groups: group 1, placebo group; group 2, tamoxifen-treated (4 mg/kg per 24 hours); group 3, estradiol-treated (4 mg/kg per 24 hours); group 4, RAD001-treated (1.5 mg/kg per 24 hours); group 5, tamoxifen (4 mg/kg per 24 hours)-and-RAD001 (1.5 mg/kg per 24 hours)-treated; and group 6, estradiol (4 mg/kg per 24 hours)-and-RAD001 (1.5 mg/kg per 24 hours)-treated. The count of glands, the length of epithelium, and immunohistochemical staining of proliferating cell nuclear antigen were analyzed. The count of total glands and the epithelial length were 30.8 (7.1) and 126 (43.4) microm, 53 (8.1) and 162.5 (34.8) microm, 65.2 (13.6) and 401.4 (44.0) microm, and 82.0 (5.2) and 444.7 (57.8) microm in the placebo-, the RAD001-, the tamoxifen-, and the estradiol-treated groups, respectively (P < 0.05). Although addition of RAD001 to estradiol did not decrease the count of total glands and the epithelial length, addition of RAD001 to tamoxifen did (43.3 [13.3] and 218.0 [29.2] microm, P < 0.05). The immunoreactive score of proliferating cell nuclear antigen is significantly decreased by the addition of RAD001 to either tamoxifen or estradiol in the epithelial and glandular cells. RAD001 can prevent tamoxifen-associated and estrogen-related endometrial hyperplasias in mice. RAD001 also decreases stromal cell proliferation in the tamoxifen-treated mice.


Asunto(s)
Antineoplásicos Hormonales/efectos adversos , Hiperplasia Endometrial/prevención & control , Neoplasias Endometriales/prevención & control , Inmunosupresores/uso terapéutico , Sirolimus/análogos & derivados , Células del Estroma/efectos de los fármacos , Tamoxifeno/efectos adversos , Animales , Proteínas Portadoras/antagonistas & inhibidores , Proteínas Portadoras/genética , Proteínas Portadoras/metabolismo , Proliferación Celular/efectos de los fármacos , Hiperplasia Endometrial/inducido químicamente , Hiperplasia Endometrial/cirugía , Neoplasias Endometriales/inducido químicamente , Neoplasias Endometriales/cirugía , Estradiol/efectos adversos , Estrógenos/efectos adversos , Everolimus , Femenino , Técnicas para Inmunoenzimas , Ratones , Ratones Endogámicos BALB C , Ovariectomía , Fosfotransferasas (Aceptor de Grupo Alcohol)/antagonistas & inhibidores , Fosfotransferasas (Aceptor de Grupo Alcohol)/genética , Fosfotransferasas (Aceptor de Grupo Alcohol)/metabolismo , Sirolimus/uso terapéutico , Tasa de Supervivencia , Serina-Treonina Quinasas TOR , Resultado del Tratamiento
9.
Maturitas ; 59(3): 268-74, 2008 Mar 20.
Artículo en Inglés | MEDLINE | ID: mdl-18378414

RESUMEN

OBJECTIVES: Cyclooxygenase-2 (COX-2) and matrix metalloproteinase-2 and -9 (MMP-2 and MMP-9) are influenced by relative levels of estrogen and are involved in promoting cell proliferation and angiogenesis. The present study investigated expression of COX-2, MMP-2 and MMP-9 in endometrial polyps from premenopausal and postmenopausal women. METHODS: Premenopausal (n=18) and postmenopausal (n=22) endometrial polyps were included in the study. None of the women were using non-steroid anti-inflammatory drugs, hormone replacement therapy or any other estrogen containing pills. Immunohistochemical analysis for MMP-2, MMP-9 and COX-2 were performed on formalin fixed, paraffin-embedded tissue using the streptavidin-biotin-peroxidase technique. The cut-off value for positiviy was set to 10% and staining more than 50% was regarded as intense staining. Staining of 10-25% and 25-50% were recorded as mild and moderate, respectively. RESULTS: COX-2, MMP-2 and MMP-9 were stained in epithelial cells and stroma of premenopausal and postmenopausal endometrial polyps. Stromal expression of COX-2, MMP-2 and MMP-9 were found significantly higher in premenopausal polyps compared to postmenopausal polyps (p<0.05). There were no other significant differences in the immunohistochemical expressions in the epithelium of premenopausal and postmenopausal endometrial polyps except MMP-9. CONCLUSION: Polyps from both premenopausal and postmenopausal women express epithelial and stromal COX-2, MMP-2 and MMP-9, however immunohistochemical expression of these markers may be different due to menopausal status. This may suggest a shared pathogenesis for pre- and postmenopausal endometrial polyps.


Asunto(s)
Ciclooxigenasa 2/metabolismo , Neoplasias Endometriales/enzimología , Metaloproteinasa 2 de la Matriz/metabolismo , Metaloproteinasa 9 de la Matriz/metabolismo , Pólipos/enzimología , Femenino , Humanos , Posmenopausia , Premenopausia
10.
Gynecol Endocrinol ; 24(10): 571-5, 2008 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-19012100

RESUMEN

OBJECTIVES: Polycystic ovary syndrome (PCOS) is characterized by hyperandrogenemia and androgen levels are associated with muscle size and strength; thus we aimed to investigate the hand functions of women with PCOS. METHODS: Thirty-seven patients with PCOS and 35 age-matched healthy women were included in the study as PCOS and control groups. Age, body mass index, dominant hand, physical activity level, lean/fat mass ratio, percentage of body fat, Beck Depression Inventory (BDI) score and Duruoz Hand Index (DHI) score were recorded. Hand grip and pinch strengths were tested in the dominant hand using a hand dynamometer and a pinch meter, respectively. Manual dexterity was tested by the grooved pegboard test. Serum concentrations of total testosterone, estradiol, dehydroepiandrosterone sulfate, follicle-stimulating hormone, luteinizing hormone, thyroid-stimulating hormone and progesterone were measured. RESULTS: Patients with PCOS had high total testosterone levels (p < 0.001). There were no differences between groups in all of the hand strengths or dexterity. No correlations between hand parameters and hormones were found. DHI and BDI scores were high in the PCOS group (p = 0.002 and 0.039, respectively). There was a correlation between DHI and BDI scores. Depressive patients had higher BMI (p = 0.021) and body fat percentage (p = 0.05) than non-depressive patients in the PCOS group. CONCLUSION: Hand strength and dexterity did not change in patients with PCOS. Depression risk increased especially in the patients with high BMI and affected hand functional status in PCOS.


Asunto(s)
Mano/fisiología , Síndrome del Ovario Poliquístico/fisiopatología , Adolescente , Adulto , Distribución de la Grasa Corporal , Índice de Masa Corporal , Estudios de Casos y Controles , Estudios Transversales , Femenino , Lateralidad Funcional/fisiología , Fuerza de la Mano/fisiología , Hormonas/sangre , Humanos , Fuerza de Pellizco/fisiología , Síndrome del Ovario Poliquístico/sangre , Adulto Joven
11.
Acta Histochem ; 110(4): 319-23, 2008.
Artículo en Inglés | MEDLINE | ID: mdl-18258286

RESUMEN

Leukemia inhibitory factor (LIF) is essential for implantation of the embryo in the endometrium. It is not clear whether the blastocyst requires expression of LIF for implantation into tissues other than endometrium. Immunohistochemical localization of LIF was performed in the fallopian tube of 20 women with ectopic pregnancies, 7 women with normal pregnancies and 20 healthy non-pregnant women. Fallopian tubes were evaluated from specimens taken during tubal ligation in normal pregnancies and non-pregnant fertile women or at operation for tubal surgery in ectopic pregnancies. Biopsies were assayed by immunohistochemistry. Semi-quantitative immunohistochemical reaction scores (IRS) were used for immunohistochemical analyses. Immunolabeling of LIF was detected in the surface epithelium and stroma of fallopian tubes in all subjects. IRS score in the epithelium and stroma of non-pregnant women and women with intrauterine pregnancy were similar (p>0.05). However, women with ectopic pregnancy had significantly increased labeling of LIF compared to others (p<0.05). Immunohistochemical labeling of LIF in the fallopian tube was found to be increased in ectopic pregnancies compared to non-pregnant and healthy pregnant controls. This may indicate a role of LIF in the ectopic implantation of embryos.


Asunto(s)
Factor Inhibidor de Leucemia/metabolismo , Embarazo Tubario/metabolismo , Adulto , Femenino , Humanos , Inmunohistoquímica , Embarazo
12.
Rev. bras. ginecol. obstet ; 45(12): 764-769, Dec. 2023. tab, graf
Artículo en Inglés | LILACS | ID: biblio-1529911

RESUMEN

Abstract Objective The aim of the present study is to compare the effectiveness of Arabin pessary and McDonald cervical cerclage on preterm delivery. Methods We conducted a retrospective analysis of data from patients who underwent either Arabin pessary or McDonald cerclage between January 1, 2019, and January 1, 2023. A total of 174 patients were included in the study, with 31 undergoing Arabin pessary and 143 receiving cervical cerclage using the McDonald technique in singleton pregnant women with cervical insufficiency, which applied between 14 and 22 gestational weeks. We included singleton pregnant women with normal morphology, and with normal combined test. The primary outcome was the impact of each method on preterm delivery (< 34 gestational weeks). Results The weeks of cervical cerclage or pessary application were compatible with each other (p< 0.680). The pessary group had a statistically significant longer time to delivery compared with the Cerclage group (cerclage group mean 30.8 c 7.1 standard deviation [SD] versus pessary group mean 35.1 ± 4.4 SD; p< 0.002). A statistically significant difference was found between the pessary and cerclage groups in terms of delivery at < 34 weeks (p= 0.002). In patients with cervical length between 25 and 15mm and < 15mm, no significant difference was found between the pessary and cerclage groups in terms of delivery week (p< 0.212; p< 0.149). Regardless of the technique applied, no statistically significant difference was observed between cervical length and birth < 34 weeks. Conclusion Our study found that pessary use for cervical insufficiency is statistically more effective than cervical cerclage surgery in preventing preterm births < 34 weeks in singleton pregnancy.


Asunto(s)
Humanos , Femenino , Embarazo , Pesarios , Cerclaje Cervical
13.
Toxicology ; 231(2-3): 215-23, 2007 Mar 07.
Artículo en Inglés | MEDLINE | ID: mdl-17227693

RESUMEN

Fluoride is a strong, hard anion and cumulative toxic agent. The effect of fluoride intoxication on lipid peroxidation in endometrial tissue and the protective effects of combinations of vitamins E and C in rats were studied. Additionally, the apoptotic changes in endometrial tissue were examined. Experimental groups were as follows: control group; a group treated with 100 mg/l fluoride (F group); and a group treated with 100 mg/l fluoride plus vitamins E and C (F+Vit group). The F and F+Vit groups were treated orally with fluoride for 30 days. Vitamins E and C were injected simultaneously at doses of 50 mg/kg day i.m. and 20 mg/kg day body weight i.p. Extensive formation of DNA strand breaks, the typical biochemical feature of apoptosis, was detected with the use of the terminal deoxynucleotidyl transferase (TdT)-mediated dUTP-biotin nick and labeling (TUNEL) method. Malondialdehyde (MDA) levels were determined in uterine tissue of rats. Fluoride caused a significant increase in MDA levels (an important marker of lipid peroxidation) in the fluoride group compared with the controls (p<0.05). Vitamins E and C significantly reduced the fluoride-induced lipid peroxidation in the F+Vit group compared with the F group (p<0.05). Diffuse apoptosis in glandular epithelium and stromal cells was found in endometrial tissues of F treated rats by TUNEL method. The severity of these lesions was reduced by the administration of vitamins. From these results, it can be concluded that subchronic fluoride administration causes endometrial apoptosis, and lipid peroxidation may be a molecular mechanism involved in fluoride-induced toxicity. Furthermore, treatment with a combination of vitamins E and C reduced endometrial apoptosis caused by fluoride.


Asunto(s)
Antioxidantes/farmacología , Apoptosis/efectos de los fármacos , Ácido Ascórbico/farmacología , Cariostáticos/toxicidad , Endometrio/efectos de los fármacos , Fluoruros/toxicidad , Vitamina E/farmacología , Administración Oral , Animales , Antioxidantes/administración & dosificación , Ácido Ascórbico/administración & dosificación , Antagonismo de Drogas , Endometrio/metabolismo , Endometrio/patología , Femenino , Etiquetado Corte-Fin in Situ , Peroxidación de Lípido , Malondialdehído/metabolismo , Tamaño de los Órganos/efectos de los fármacos , Ratas , Ratas Wistar , Sustancias Reactivas al Ácido Tiobarbitúrico/metabolismo , Útero/efectos de los fármacos , Útero/patología , Vitamina E/administración & dosificación
14.
Environ Toxicol Pharmacol ; 24(2): 86-91, 2007 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-21783794

RESUMEN

High fluoride intake may affect biological systems by increasing free radicals, which may enhance lipid peroxidation levels of the tissues, thus leading to oxidative damage. Caffeic acid phenethyl ester (CAPE), a component of honeybee propolis, protects tissues from reactive oxygen species mediated oxidative stress in ischemia-reperfusion and toxic injuries. Several studies suggest that supplementation with anti-oxidant can influence fluoride induced tissue damage. The aims of this study was to investigate the possible role of malondialdehyde (MDA) levels and activity of superoxide dismutase (SOD) and catalase (CAT), in the pathogenesis of fluoride-induced endometrial damage and to demonstrate the effect of CAPE, the potent antioxidant, in decreasing the toxicity. Twenty-four adult female rats were randomly divided into three experimental groups, as follows: control group, fluoride-treated group (F), and fluoride plus CAPE-treated group (F+CAPE). Fluoride was given orally as 30mg/L NaF solution in spring water daily for 45 days. CAPE was co-administered intraperitoneally (i.p.) with a dose of 10µM/(kgday) for 46 days. Extensive formation of DNA strand breaks, the typical biochemical feature of apoptosis, was detected with the use of the terminal deoxynucleotidyl transferase (TdT)-mediated d UTP-biotin nick and labeling (TUNEL) method. The activities of antioxidant enzymes such as SOD and CAT as well as the concentration of MDA, as an indicator of lipid peroxidation, were measured to evaluate oxidative stress in homogenates of the endometrium. Fluoride administration increased MDA levels (p<0.05), decreased SOD (p<0.05) and CAT (p<0.05) activities. CAPE co-administration with fluoride treatments caused significantly decreased MDA levels (p<0.05), increased SOD (p<0.05) and CAT (p<0.05) activities in endometrial tissue when compared with F alone. Diffuse apoptosis in glandular epithelium and stromal cells was found by TUNEL method in endometrial tissues of rats treated with fluoride. The severity of these lesions was reduced by administration of CAPE. In conclusion, our study demonstrated that MDA may play an important role in the pathogenesis of fluoride-induced oxidative endometrial damage. CAPE may have protective aspects in this process by its antioxidant and anti-inflammatory effect.

15.
Environ Toxicol Pharmacol ; 23(2): 221-7, 2007 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-21783761

RESUMEN

The role of reactive oxygen species (ROS) in various diseases of the female reproductive tract has been shown, and oxidative stress is an important component of the mechanism of toxicity of OPIs. Methyl parathion (MPT) is one of the most widely used organophosphate insecticides (OPIs) in agriculture. The aim of the study was to elucidate the effect of subchronic MPT exposure on lipid peroxidation and serum activities of cholinesterase (ChE), and the protective effects of combination of antioxidant Vitamins E and C in rats. Additionally, histopathological and immunohistochemical changes in endometrium were aimed to be examined. Three groups of rats were used in the experiment. The first group was treated with 5mg/kg MPT; the second group was treated with 5mg/kg body weight MPT plus Vitamin E and Vitamin C (MPT+Vit); and the third group was given only corn oil (control). MPT and MPT+Vit groups were given MPT by gavage 5 days a week for 4 weeks at a dose level of 4mg/(kgday) by using corn oil as the vechicle. Vitamins E and C were injected at doses of 50mg/kg i.m. and 20mg/kg body weight i.p. Histopathological and immunohistochemical examinations for caspase-3 and caspase-9 were accomplished in the endometrium. The level of malondialdehyde (MDA) increased significantly in the MPT group compared with the control group (p<0.05). MDA significantly decreased in the MPT+Vit group compared with the MPT group (p<0.05). Administration of Vitamins E and C along with MPT significantly reduced the histopathological changes and the extent of apoptosis. In conclusion, subchronic MPT administration caused endometrial damage and that treatment with a combination of Vitamins E and C reduced endometrial damage caused by MPT.

16.
Obstet Gynecol ; 108(1): 119-23, 2006 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-16816065

RESUMEN

OBJECTIVE: To evaluate the efficacy of intrauterine lidocaine instillation in reducing patient discomfort during the removal of a "lost" intrauterine device (IUD). METHODS: This double-blinded, randomized, placebo-controlled trial included 68 women who underwent removal procedure for a "lost" IUD. Thirty-four women were allocated to the lidocaine group and 34 to the saline group. The main outcome measure was the intensity of pain during, immediately after, and 20 minutes after the procedure, assessed by a visual analog scale. Statistical analysis was performed using the Friedman test with Bonferroni correction, Student t test, and chi2. RESULTS: There were no statistically significant differences between the study group and the control group in mean age, parity history of chronic pelvic pain and dysmenorrhea, history of curettage, education, socioeconomic status, menopausal status, breastfeeding, type of IUD, and duration of IUD. Pain scores demonstrated a significant difference between groups during the procedure (placebo 6.41 +/- 1.15, lidocaine 5.23 +/- 0.69, P < .01), immediately after procedure (placebo 6.05 +/- 1.01, lidocaine 4.94 +/- 0.60, P < .01), and 20 minutes after procedure (placebo 4.32 +/- 0.63, lidocaine 4.44 +/- 0.66, P < .01). The number needed to treat was 3 (95% confidence interval 2-9). CONCLUSION: Intrauterine lidocaine appears to be effective in decreasing pain in women undergoing the removal procedure of a "lost" IUD. CLINICAL TRIAL REGISTRATION: Clinicaltrials.gov, NCT00308841. LEVEL OF EVIDENCE: I.


Asunto(s)
Anestésicos Locales/administración & dosificación , Remoción de Dispositivos/efectos adversos , Dispositivos Intrauterinos , Lidocaína/administración & dosificación , Dolor/prevención & control , Administración Tópica , Método Doble Ciego , Femenino , Humanos , Dimensión del Dolor , Cloruro de Sodio/administración & dosificación
17.
Reprod Toxicol ; 22(4): 783-90, 2006 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-16973328

RESUMEN

We aimed to investigate the effect of subchronic administration of dichlorvos (DDVP) on endometrium and to evaluate ameliorating effects of a combination of Vitamins E and C against DDVP toxicity in the rat. Three groups of rats were used in the experiment. The first group was treated with 4 mg/kg DDVP; the second group was treated with 4 mg/kg body weight DDVP plus Vitamins E and C (DDVP+Vit); the third group was given only corn oil (control). DDVP and DDVP+Vit groups were given DDVP by gavage 5 days a week for 4 weeks at a dose level of 4 mg/kg day by using corn oil as the vechicle. Vitamins E and C were injected at doses of 50 mg/kg i.m. and 20 mg/kg body weight i.p. Histopathological and immunohistochemical examinations for caspase-3 and caspase-9 were accomplished in the endometrium. The level of malondialdehyde (MDA) increased significantly in the DDVP group compared with the control group (p<0.05). MDA significantly decreased in the DDVP+Vit group compared with the DDVP group (p<0.05). Administration of Vitamins E and C along with DDVP significantly reduced the histopathological changes and the extent of apoptosis. In conclusion, subchronic DDVP administration caused endometrial damage and that treatment with a combination of Vitamins E and C reduced endometrial damage caused by DDVP.


Asunto(s)
Apoptosis/efectos de los fármacos , Ácido Ascórbico/farmacología , Diclorvos/toxicidad , Endometrio/efectos de los fármacos , Vitamina E/farmacología , Animales , Antioxidantes/administración & dosificación , Antioxidantes/farmacología , Ácido Ascórbico/administración & dosificación , Caspasa 3/sangre , Caspasa 9/sangre , Inhibidores de la Colinesterasa/administración & dosificación , Inhibidores de la Colinesterasa/toxicidad , Colinesterasas/sangre , Diclorvos/administración & dosificación , Diestro/efectos de los fármacos , Endometrio/patología , Estro/efectos de los fármacos , Fasciculación/inducido químicamente , Femenino , Inmunohistoquímica , Inyecciones Intramusculares , Intubación Gastrointestinal , Peroxidación de Lípido/efectos de los fármacos , Malondialdehído/sangre , Compuestos Organofosforados/administración & dosificación , Compuestos Organofosforados/toxicidad , Ratas , Ratas Wistar , Vitamina E/administración & dosificación , Aumento de Peso/efectos de los fármacos
18.
Adv Ther ; 23(6): 957-73, 2006.
Artículo en Inglés | MEDLINE | ID: mdl-17276964

RESUMEN

Numerous reports have described the effects induced by an electromagnetic field (EMF) in various cellular systems. The purposes of this study were to examine oxidative stress that promotes production of reactive oxygen species induced by a 900-megahertz (MHz) mobile phone and the possible ameliorating effects of vitamins E and C on endometrial tissue against EMF-induced endometrial impairment and apoptosis in rats. Animals were randomly grouped as follows: (1) sham-operated control group (n=8), (2) 900 MHz EMF-exposed group (n=8; 30 min/d for 30 d), and (3) 900 MHz EMF-exposed group, treated with vitamins E and C (n=8; 50 mg/kg intramuscularly and 20 mg/kg body weight intraperitoneally before daily EMF exposure). Malondialdehyde (an index of lipid peroxidation) was used as a marker of oxidative stress-induced endometrial impairment; Bcl-2, Bax, caspase-3, and caspase-8 were assessed immunohistochemically. In this study, increased malondialdehyde levels in endometrial tissue and apoptosis illustrated the role of the oxidative mechanism induced by exposure to a 900-MHz mobile phone-like device and vitamins E and C; via free radical scavenging and antioxidant properties, oxidative tissue injury and apoptosis were ameliorated in rat endometrium. In conclusion, exposure to 900-MHz radiation emitted by mobile phones may cause endometrial apoptosis and oxidative stress, but treatment with vitamins E and C can diminish these changes and may have a beneficial effect in preventing endometrial changes in rats.


Asunto(s)
Apoptosis , Ácido Ascórbico/uso terapéutico , Teléfono Celular , Campos Electromagnéticos/efectos adversos , Endometrio/metabolismo , Enfermedades Uterinas/prevención & control , Vitamina E/uso terapéutico , Animales , Caspasa 3/metabolismo , Caspasa 8/metabolismo , Endometrio/patología , Ciclo Estral , Femenino , Inmunohistoquímica , Estrés Oxidativo , Distribución Aleatoria , Ratas , Ratas Wistar , Especies Reactivas de Oxígeno/metabolismo , Enfermedades Uterinas/metabolismo , Enfermedades Uterinas/patología
19.
Eur J Obstet Gynecol Reprod Biol ; 119(2): 171-5, 2005 Apr 01.
Artículo en Inglés | MEDLINE | ID: mdl-15808374

RESUMEN

OBJECTIVE: We aimed to evaluate the obstetric outcome of patients without obstetric risks, who had two or more previous caesarean sections (C/S) prior to the current pregnancy, which was managed by caesarean section in our obstetric department. METHODS: We studied the case notes of 602 women who had a repeat caesarean section in our unit between May 2002-June 2003. We then compared the two groups: (1) those who had two or more previous caesarean sections and (2) those who had only one previous caesarean section. RESULTS: In the study group, while dense intraperitoneal adhesions were present in 3.6% of the patients, they were not found in control group. This difference was statistically significant (P < 0.05). Uterine wound separation rate was 1.9% in the study group and none of the patients in control group had uterine wound separation, which was statistically significant also (P < 0.05). There was no statistically significant association between Apgar scores and number of previous caesarean sections. Postoperative complication rates did not differ between the two groups (P > 0.05). CONCLUSION: Patients without any obstetric risks, with two or more previous caesarean sections had significantly more dense adhesions and uterine wound separations in the current caesarean section compared to patients with one previous caesarean section. But, maternal and fetal mortality and morbidity in women who have two or more previous caesarean sections did not differ from the patients with one previous caesarean section.


Asunto(s)
Cesárea Repetida/efectos adversos , Adulto , Cesárea Repetida/métodos , Femenino , Humanos , Embarazo , Esterilización Tubaria/estadística & datos numéricos , Adherencias Tisulares/epidemiología , Adherencias Tisulares/etiología , Enfermedades Uterinas/epidemiología , Enfermedades Uterinas/etiología
20.
J Pediatr Orthop B ; 13(4): 263-7, 2004 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-15199283

RESUMEN

The purpose of this study was to investigate the light microscopic structure of extrinsic foot muscles in talipes equinovarus (TEV) deformity that developed during intrauterine life due to high-level myelomeningocele. Ten feet of five fetal cadavers ranging in age from 18 to 20 weeks were dissected. Five feet had typical TEV deformity and the other five feet did not have any deformity (control group). Under light microscopic examination quantitative measurement of both muscle fiber sizes and fibrosis in the muscle tissue were performed to investigate the denervation muscle atrophy. Mean muscle fiber size of the TEV group was found to be significantly lower than that of the control group in all foot muscles except the gastrocnemius muscle. The proportion of fibrosis due to denervation atrophy was significantly higher in the TEV group than in the control group in all muscles. This situation was most evident in the peroneus longus muscle. It was concluded that muscular imbalance due to significant muscular atrophy might be the cause of TEV deformity that developed during intrauterine life due to high-level myelomeningocele.


Asunto(s)
Feto Abortado/patología , Pie Equinovaro/patología , Músculo Esquelético/patología , Espina Bífida Quística/patología , Atrofia/patología , Cadáver , Estudios de Casos y Controles , Pie Equinovaro/complicaciones , Femenino , Fibrosis , Edad Gestacional , Humanos , Masculino , Microscopía , Desnervación Muscular , Fibras Musculares Esqueléticas/patología , Músculo Esquelético/inervación , Espina Bífida Quística/complicaciones
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