IL-6, IL-10 and TNF-α gene polymorphisms in preeclampsia: a case-control study in a Mexican population.

OBJECTIVES: We focused our study on examining the genotype and allele frequency of IL-6 (rs1800795), TNF-α (rs1800629) and IL-10 (rs1800872) single nucleotide polymorphisms (SNP) on preeclampsia (PE) diagnosed Mexican pregnant women. MATERIAL AND METHODS: A case-control study was designed including 86 preeclampsia patients and 100 normotensives pregnancies from Women's Hospital of Culiacan, Mexico. Genotyping of IL-6, TNF-α and IL-10 was performed using TaqMan SNP Genotyping. RESULTS: Not significant association was found between development of PE and genotypic (p > 0.05) and allelic (p > 0.05) frequencies of IL-6, TNF-α and IL-10 SNPs. Genotype distributions of IL-6 (p = 0.599), TNF-α (p = 0.721) and IL-10 (p = 0.761) polymorphisms in the two groups were in agreement with Hardy-Weinberg equilibrium. CONCLUSIONS: According to the findings, the IL-6, TNF-α and IL-10 SNPs are not exponents of susceptibility to developing PE.

Incidencia del espectro de acretismo placentario en la unidad de cuidados intensivos obstétricos del Hospital de la Mujer de Sinaloa / Incidence of the placental accretism spectrum in the obstetric intensive care unit of the Hospital de la Mujer of Sinaloa

Resumen OBJETIVO: Determinar la incidencia del espectro del acretismo placentario en pacientes ingresadas a la unidad de cuidados intensivos obstétricos del Hospital de la Mujer, Culiacán, Sinaloa. MATERIALES Y MÉTODOS: Estudio retrospectivo, transversal y descriptivo fundamentado en el análisis de la base de datos del Hospital de la Mujer de pacientes internadas entre los años 2017 a 2020 con diagnóstico de espectro de placenta acreta, referidas o diagnosticadas en la institución e intervenidas para histerectomía por la complicación estudiada. RESULTADOS: Se analizaron 22 pacientes con diagnóstico de acretismo placentario que dieron una incidencia de 0.09%; de éstas, a 1 se le indicó cesárea; 19 de las 22 pacientes tenían antecedente de cicatriz uterina previa, todas con placenta previa. El promedio de edad fue de 30.86 ± 4 años. La cesárea se practicó, en promedio, a las 34 semanas de embarazo con dos técnicas quirúrgicas. El sangrado promedio estimado fue de 1.947 mL. Las complicaciones transoperatorias fueron las lesiones: ureteral (n = 2) y vesical (n = 1). La principal complicación posoperatoria fue la fístula vesicouterina (n = 1). El promedio de estancia fue de 2 días en 16 de las 22 pacientes y de 7 días en las 6 restantes. CONCLUSIONES: Lo importante del acretismo placentario es el diagnóstico oportuno que permita derivar a las pacientes a centros hospitalarios que cuenten con especialistas experimentados en la atención de estos casos.

Abstract OBJECTIVE: To determine the incidence of placental accretism spectrum in pregnant women admitted to the obstetric intensive care unit of the Hospital de la Mujer, Culiacán, Sinaloa. MATERIALS AND METHODS: Retrospective, cross-sectional, descriptive study based on the analysis of the database of the Hospital de la Mujer of patients admitted between 2017 and 2020 with a diagnosis of placenta accreta spectrum, referred or diagnosed at the institution and underwent hysterectomy for the complication studied. RESULTS: Twenty-two patients with a diagnosis of placenta accreta were analysed, giving a prevalence of 0.09%; of these, caesarean section was indicated in 0.2%. 19 of the 22 patients had a history of previous uterine scarring, all with placenta praevia. Mean age was 30.86 ± 4 years. Caesarean section was performed at a mean gestational age of 34 weeks using two surgical techniques. The mean estimated blood loss was 1,947 mL. The most common operative complications were ureteral (n = 2) and bladder (n = 1) injuries. The most common postoperative complication was vesico-uterine fistula (n = 1). The mean length of stay was 2 days in 16 of the 22 patients and 7 days in the remaining 6 patients. CONCLUSIONS: The most important aspect of placenta accreta is early diagnosis, which allows referral to hospital centres with specialists experienced in the management of these cases.

Twin pregnancy with incomplete hydatidiform mole and coexistent normal live fetus: A case report and review of the literature.

RATIONALE: A pregnancy with incomplete mole is very rare case. Hydatidiform mole (HM) with live fetus is associated with a risk of a wide variety to maternal and fetal complications. The incidence of a normal live fetus and an incomplete mole such as the case we describe is extremely rare. PATIENT CONCERN: We report a case of multiparous 34-year-old at Culiacan Mexico woman with incomplete mole coexisting with normal fetus, pregnant 35.3 weeks who presented anemia grade II. DIAGNOSIS: The initial diagnosis of the mole was by ultrasound. INTERVENTIONS: KERR-type cesarean section and bilateral tubal occlusion. The newborn was morphologically normal, and she did not require intervention or treatment. OUTCOMES: The newborn was feminine, morphologically normal, weighing 2380 g and 47 cm, APGAR score 8 to 9, delivered prematurely, and there was a large placental plate. The blood loss on surgery was estimated at 1000 mL. Histopathology report of an incomplete hydatidiform mole, negative for malignancy. Histopathology diagnostic was confirmed by immunohistochemistry staining for p57KIP2. LESSONS: Although the incidence of this pregnancy is very rare, early recognition, diagnosis and divulge of the cases of medical community is very important for patient care.

The Role of ncRNAs in the Immune Dysregulation of Preeclampsia.

The main complications causing practically 75% of all maternal deaths are severe bleeding, infections, and high blood pressure during pregnancy (preeclampsia (PE) and eclampsia). The usefulness of ncRNAs as clinical biomarkers has been explored in an extensive range of human diseases including pregnancy-related diseases such as PE. Immunological dysregulation show that the Th1/17:Th2/Treg ratio is "central and causal" to PE. However, there is evidence of the involvement of placenta-expressed miRNAs and lncRNAs in the immunological regulation of crucial processes of placenta development and function during pregnancy. Abnormal expression of these molecules is related to immune physiopathological processes that occur in PE. Therefore, this work aims to describe the importance of miRNAs and lncRNAs in immune dysregulation in PE. Interestingly, multiple ncRNAS are involved in the immune dysregulation of PE participating in type 1 immune response regulation, immune microenvironment regulation in placenta promoting inflammatory factors, trophoblast cell invasion in women with Early-Onset PE (EOPE), placental development, and angiogenesis, promotion of population of M1 and M2, proliferation, invasion, and migration of placental trophoblast cells, and promotion of invasion and autophagy through vias such as PI3K/AKT/mTOR, VEGF/VEGFR1, and TLR9/STAT3.

Cytokine-polymorphisms associated with Preeclampsia: A review.

BACKGROUND: Preeclampsia (PE) is a syndromic disorder that affects 2% to 8% of pregnancies and is diagnosed principally when hypertension appears in the second-d half of pregnancy. WHO estimates the incidence of PE to be seven times higher in developing countries than in developed countries. Severe preeclampsia/eclampsia is one of the most important causes of maternal mortality, associated with 50,000 to 100,000 annual deaths globally as well as serious fetal and neonatal morbidity and mortality, especially in developing countries. Even though evidence from family-based studies suggest PE has a heritable component, its etiology, and specific genetic contributions remain unclear. Many studies examining the genetic factors contributing to PE have been conducted, most of them are focused on single nucleotide polymorphisms (SNPs). Given that PE has a very important inflammatory component, is mandatory to examine cytokine-SNPs for elucidating all mechanisms involved in this pathology. In this review, we describe the most important cytokine-polymorphisms associated with the onset and development of PE. We aim to provide current and relevant evidence in this regard. METHODS: We searched English databases such as PubMed and the National Center for Biotechnology Information. The publication time of the papers was set from the establishment of the databases to February 2022. All studies about Th1/Th2/Th17 cytokines polymorphisms were included in our study. RESULTS: SNPs in IFN-γ, TNF-α, IL-4, IL-6, IL-10, IL-17A, and IL-22 are associated with the development, early-onset and severity of PE, being the Th1/Th2/Th17 responses affected by the presence of these SNPs. CONCLUSIONS: The changes in Th1/Th2/Th17 response modify processes such as placentation, control of inflammation, and vascular function. Nonetheless, association studies have shown different results depending on sample size, diagnostic, and population.