RESUMO
Obesity is a chronic, progressive, relapsing, and treatable multifactorial, neurobehavioral disease. According to the World Health Organization, obesity affects 15% of women and has long-term effects on women's health. The focus of care in patients with obesity should be on optimizing health outcomes rather than on weight loss. Appropriate and common language, considering cultural sensitivity and trauma-informed care, is needed to discuss obesity. Pregnancy is a time of significant physiological change. Pre-, ante-, and postpartum clinical encounters provide opportunities for health optimization for parents with obesity in terms of, but not limited to, fertility and breastfeeding. Pre-existing conditions may also be identified and managed. Beyond pregnancy, women with obesity are at an increased risk for gastrointestinal and liver diseases, impaired kidney function, obstructive sleep apnea, and venous thromboembolism. Gynecological and reproductive health of women living with obesity cannot be dismissed, with accommodations needed for preventive health screenings and consideration of increased risk for gynecologic malignancies. Mental wellness, specifically depression, should be screened and managed appropriately. Obesity is a complex condition and is increasing in prevalence with failure of public health interventions to achieve significant decrease. Future research efforts should focus on interprofessional care and discovering effective interventions for health optimization.
Assuntos
Recidiva Local de Neoplasia , Obesidade , Gravidez , Feminino , Humanos , Obesidade/complicações , Obesidade/terapia , Obesidade/epidemiologia , Saúde da Mulher , Período Pós-Parto , Saúde MentalRESUMO
Myo-inositol (myo-Ins) and D-chiro-inositol (D-chiro-Ins) are natural compounds involved in many biological pathways. Since the discovery of their involvement in endocrine signal transduction, myo-Ins and D-chiro-Ins supplementation has contributed to clinical approaches in ameliorating many gynecological and endocrinological diseases. Currently both myo-Ins and D-chiro-Ins are well-tolerated, effective alternative candidates to the classical insulin sensitizers, and are useful treatments in preventing and treating metabolic and reproductive disorders such as polycystic ovary syndrome (PCOS), gestational diabetes mellitus (GDM), and male fertility disturbances, like sperm abnormalities. Moreover, besides metabolic activity, myo-Ins and D-chiro-Ins deeply influence steroidogenesis, regulating the pools of androgens and estrogens, likely in opposite ways. Given the complexity of inositol-related mechanisms of action, many of their beneficial effects are still under scrutiny. Therefore, continuing research aims to discover new emerging roles and mechanisms that can allow clinicians to tailor inositol therapy and to use it in other medical areas, hitherto unexplored. The present paper outlines the established evidence on inositols and updates on recent research, namely concerning D-chiro-Ins involvement into steroidogenesis. In particular, D-chiro-Ins mediates insulin-induced testosterone biosynthesis from ovarian thecal cells and directly affects synthesis of estrogens by modulating the expression of the aromatase enzyme. Ovaries, as well as other organs and tissues, are characterized by a specific ratio of myo-Ins to D-chiro-Ins, which ensures their healthy state and proper functionality. Altered inositol ratios may account for pathological conditions, causing an imbalance in sex hormones. Such situations usually occur in association with medical conditions, such as PCOS, or as a consequence of some pharmacological treatments. Based on the physiological role of inositols and the pathological implications of altered myo-Ins to D-chiro-Ins ratios, inositol therapy may be designed with two different aims: (1) restoring the inositol physiological ratio; (2) altering the ratio in a controlled way to achieve specific effects.
Assuntos
Diabetes Gestacional/tratamento farmacológico , Inositol/farmacologia , Síndrome do Ovário Policístico/tratamento farmacológico , Testosterona/metabolismo , Células Tecais/efeitos dos fármacos , Diabetes Gestacional/metabolismo , Feminino , Humanos , Inositol/química , Inositol/metabolismo , Estrutura Molecular , Síndrome do Ovário Policístico/metabolismo , Gravidez , Transdução de Sinais/efeitos dos fármacos , Células Tecais/metabolismoRESUMO
Fetal growth restriction (FGR) is defined as the failure of the fetus to meet its growth potential due to a pathological factor, most commonly placental dysfunction. Worldwide, FGR is a leading cause of stillbirth, neonatal mortality, and short- and long-term morbidity. Ongoing advances in clinical care, especially in definitions, diagnosis, and management of FGR, require efforts to effectively translate these changes to the wide range of obstetric care providers. This article highlights agreements based on current research in the diagnosis and management of FGR, and the areas that need more research to provide further clarification of recommendations. The purpose of this article is to provide a comprehensive summary of available evidence along with practical recommendations concerning the care of pregnancies at risk of or complicated by FGR, with the overall goal to decrease the risk of stillbirth and neonatal mortality and morbidity associated with this condition. To achieve these goals, FIGO (the International Federation of Gynecology and Obstetrics) brought together international experts to review and summarize current knowledge of FGR. This summary is directed at multiple stakeholders, including healthcare providers, healthcare delivery organizations and providers, FIGO member societies, and professional organizations. Recognizing the variation in the resources and expertise available for the management of FGR in different countries or regions, this article attempts to take into consideration the unique aspects of antenatal care in low-resource settings (labelled "LRS" in the recommendations). This was achieved by collaboration with authors and FIGO member societies from low-resource settings such as India, Sub-Saharan Africa, the Middle East, and Latin America.
Assuntos
Desenvolvimento Fetal , Retardo do Crescimento Fetal/diagnóstico , Programas de Rastreamento/métodos , Feminino , Retardo do Crescimento Fetal/etiologia , Retardo do Crescimento Fetal/terapia , Feto/fisiopatologia , Humanos , Recém-Nascido , Obstetrícia/métodos , Placenta/patologia , Gravidez , NatimortoRESUMO
The activities of the FIGO Pregnancy Obesity and Nutrition Initiative are aimed at reducing all types of malnutrition in women before, during and after pregnancy.
Assuntos
Programas de Rastreamento/métodos , Obesidade/prevenção & controle , Fenômenos Fisiológicos da Nutrição Pré-Natal , Feminino , Humanos , GravidezRESUMO
Preeclampsia (PE) is a multisystem disorder that typically affects 2%5% of pregnant women and is one of the leading causes of maternal and perinatal morbidity and mortality, especially when the condition is of early onset. Globally, 76 000 women and 500 000 babies die each year from this disorder. Furthermore, women in lowresource countries are at a higher risk of developing PE compared with those in highresource countries. Although a complete understanding of the pathogenesis of PE remains unclear, the current theory suggests a twostage process. The first stage is caused by shallow invasion of the trophoblast, resulting in inadequate remodeling of the spiral arteries. This is presumed to lead to the second stage, which involves the maternal response to endothelial dysfunction and imbalance between angiogenic and antiangiogenic factors, resulting in the clinical features of the disorder. Accurate prediction and uniform prevention continue to elude us. The quest to effectively predict PE in the first trimester of pregnancy is fueled by the desire to identify women who are at high risk of developing PE, so that necessary measures can be initiated early enough to improve placentation and thus prevent or at least reduce the frequency of its occurrence. Furthermore, identification of an "at risk" group will allow tailored prenatal surveillance to anticipate and recognize the onset of the clinical syndrome and manage it promptly. PE has been previously defined as the onset of hypertension accompanied by significant proteinuria after 20 weeks of gestation. Recently, the definition of PE has been broadened. Now the internationally agreed definition of PE is the one proposed by the International Society for the Study of Hypertension in Pregnancy (ISSHP). According to the ISSHP, PE is defined as systolic blood pressure at ≥140 mm Hg and/or diastolic blood pressure at ≥90 mm Hg on at least two occasions measured 4 hours apart in previously normotensive women and is accompanied by one or more of the following newonset conditions at or after 20 weeks of gestation: 1.Proteinuria (i.e. ≥30 mg/mol protein:creatinine ratio; ≥300 mg/24 hour; or ≥2 + dipstick); 2.Evidence of other maternal organ dysfunction, including: acute kidney injury (creatinine ≥90 µmol/L; 1 mg/dL); liver involvement (elevated transaminases, e.g. alanine aminotransferase or aspartate aminotransferase >40 IU/L) with or without right upper quadrant or epigastric abdominal pain; neurological complications (e.g. eclampsia, altered mental status, blindness, stroke, clonus, severe headaches, and persistent visual scotomata); or hematological complications (thrombocytopeniaplatelet count <150 000/µL, disseminated intravascular coagulation, hemolysis); or 3.Uteroplacental dysfunction (such as fetal growth restriction, abnormal umbilical artery Doppler waveform analysis, or stillbirth). It is well established that a number of maternal risk factors are associated with the development of PE: advanced maternal age; nulliparity; previous history of PE; short and long interpregnancy interval; use of assisted reproductive technologies; family history of PE; obesity; AfroCaribbean and South Asian racial origin; comorbid medical conditions including hyperglycemia in pregnancy; preexisting chronic hypertension; renal disease; and autoimmune diseases, such as systemic lupus erythematosus and antiphospholipid syndrome. These risk factors have been described by various professional organizations for the identification of women at risk of PE; however, this approach to screening is inadequate for effective prediction of PE. PE can be subclassified into: 1.Earlyonset PE (with delivery at <34+0 weeks of gestation); 2.Preterm PE (with delivery at <37+0 weeks of gestation); 3.Lateonset PE (with delivery at ≥34+0 weeks of gestation); 4.Term PE (with delivery at ≥37+0 weeks of gestation). These subclassifications are not mutually exclusive. Earlyonset PE is associated with a much higher risk of short and longterm maternal and perinatal morbidity and mortality. Obstetricians managing women with preterm PE are faced with the challenge of balancing the need to achieve fetal maturation in utero with the risks to the mother and fetus of continuing the pregnancy longer. These risks include progression to eclampsia, development of placental abruption and HELLP (hemolysis, elevated liver enzyme, low platelet) syndrome. On the other hand, preterm delivery is associated with higher infant mortality rates and increased morbidity resulting from small for gestational age (SGA), thrombocytopenia, bronchopulmonary dysplasia, cerebral palsy, and an increased risk of various chronic diseases in adult life, particularly type 2 diabetes, cardiovascular disease, and obesity. Women who have experienced PE may also face additional health problems in later life, as the condition is associated with an increased risk of death from future cardiovascular disease, hypertension, stroke, renal impairment, metabolic syndrome, and diabetes. The life expectancy of women who developed preterm PE is reduced on average by 10 years. There is also significant impact on the infants in the long term, such as increased risks of insulin resistance, diabetes mellitus, coronary artery disease, and hypertension in infants born to preeclamptic women. The International Federation of Gynecology and Obstetrics (FIGO) brought together international experts to discuss and evaluate current knowledge on PE and develop a document to frame the issues and suggest key actions to address the health burden posed by PE. FIGO's objectives, as outlined in this document, are: (1) To raise awareness of the links between PE and poor maternal and perinatal outcomes, as well as to the future health risks to mother and offspring, and demand a clearly defined global health agenda to tackle this issue; and (2) To create a consensus document that provides guidance for the firsttrimester screening and prevention of preterm PE, and to disseminate and encourage its use. Based on highquality evidence, the document outlines current global standards for the firsttrimester screening and prevention of preterm PE, which is in line with FIGO good clinical practice advice on first trimester screening and prevention of preeclampsia in singleton pregnancy.1 It provides both the best and the most pragmatic recommendations according to the level of acceptability, feasibility, and ease of implementation that have the potential to produce the most significant impact in different resource settings. Suggestions are provided for a variety of different regional and resource settings based on their financial, human, and infrastructure resources, as well as for research priorities to bridge the current knowledge and evidence gap. To deal with the issue of PE, FIGO recommends the following: Public health focus: There should be greater international attention given to PE and to the links between maternal health and noncommunicable diseases (NCDs) on the Sustainable Developmental Goals agenda. Public health measures to increase awareness, access, affordability, and acceptance of preconception counselling, and prenatal and postnatal services for women of reproductive age should be prioritized. Greater efforts are required to raise awareness of the benefits of early prenatal visits targeted at reproductiveaged women, particularly in lowresource countries. Universal screening: All pregnant women should be screened for preterm PE during early pregnancy by the firsttrimester combined test with maternal risk factors and biomarkers as a onestep procedure. The risk calculator is available free of charge at https://fetalmedicine.org/research/assess/preeclampsia. FIGO encourages all countries and its member associations to adopt and promote strategies to ensure this. The best combined test is one that includes maternal risk factors, measurements of mean arterial pressure (MAP), serum placental growth factor (PLGF), and uterine artery pulsatility index (UTPI). Where it is not possible to measure PLGF and/or UTPI, the baseline screening test should be a combination of maternal risk factors with MAP, and not maternal risk factors alone. If maternal serum pregnancyassociated plasma protein A (PAPPA) is measured for routine firsttrimester screening for fetal aneuploidies, the result can be included for PE risk assessment. Variations to the full combined test would lead to a reduction in the performance screening. A woman is considered high risk when the risk is 1 in 100 or more based on the firsttrimester combined test with maternal risk factors, MAP, PLGF, and UTPI. Contingent screening: Where resources are limited, routine screening for preterm PE by maternal factors and MAP in all pregnancies and reserving measurements of PLGF and UTPI for a subgroup of the population (selected on the basis of the risk derived from screening by maternal factors and MAP) can be considered. Prophylactic measures: Following firsttrimester screening for preterm PE, women identified at high risk should receive aspirin prophylaxis commencing at 1114+6 weeks of gestation at a dose of ~150 mg to be taken every night until 36 weeks of gestation, when delivery occurs, or when PE is diagnosed. Lowdose aspirin should not be prescribed to all pregnant women. In women with low calcium intake (<800 mg/d), either calcium replacement (≤1 g elemental calcium/d) or calcium supplementation (1.52 g elemental calcium/d) may reduce the burden of both early and lateonset PE.
Assuntos
Programas de Rastreamento/métodos , Pré-Eclâmpsia/diagnóstico , Pré-Eclâmpsia/prevenção & controle , Adulto , Biomarcadores/sangue , Consenso , Feminino , Humanos , Fator de Crescimento Placentário/sangue , Pré-Eclâmpsia/sangue , Pré-Eclâmpsia/classificação , Gravidez , Primeiro Trimestre da Gravidez , Medição de Risco , Fatores de Risco , Artéria Uterina/diagnóstico por imagem , Artéria Uterina/fisiologiaRESUMO
Gestation is accompanied by alterations in the microbial repertoire; however, the mechanisms driving these changes are unknown. Here, we demonstrate a dramatic shift in the gut microbial composition of women and mice during late pregnancy, including an increase in the relative abundance of Bifidobacterium. Using in-vivo-transplanted pellets, we found that progesterone, the principal gestation hormone, affects the microbial community. The effect of progesterone on the richness of several bacteria species, including Bifidobacterium, was also demonstrated in vitro, indicating a direct effect. Altogether, our results delineate a model in which progesterone promotes Bifidobacterium growth during late pregnancy.
Assuntos
Bifidobacterium/crescimento & desenvolvimento , Microbioma Gastrointestinal/efeitos dos fármacos , Progesterona/farmacologia , Adulto , Animais , Bifidobacterium/genética , Bifidobacterium/isolamento & purificação , Análise Discriminante , Fezes/microbiologia , Feminino , Humanos , Camundongos , Efeito Placebo , Gravidez , Terceiro Trimestre da Gravidez , Análise de Componente Principal , Progesterona/química , RNA Ribossômico 16S/metabolismo , Adulto JovemRESUMO
The International Federation of Gynecology and Obstetrics (FIGO) has identified non communicable maternal diseases (NCDs) as a new focus area. NCDs and exposures as related to pregnancy complications and later impairment of maternal and offspring health will form the basis for action in the forthcoming years. This paper summarizes recent advances, centered on the use of first-trimester testing, as a window of opportunity to predict and prevent many pregnancy complications; and for potential future prevention of NCDs in mother and offspring. Recent results from a large-scale randomized control trial have provided definitive proof that effective screening for preterm preeclampsia (preterm-PE), requiring delivery before 37â¯weeks' gestation, can be achieved with a combined test of maternal factors and biomarkers at 11-13â¯weeks and that aspirin, given to high-risk women, is effective in reducing the risk of preterm-PE and the length of stay in neonatal intensive care unit. This is the first successful example to illustrate that pregnancy complications is predictable and preventable in early pregnancy. Similar prediction and prevention strategies are being developed for hyperglycemia in pregnancy and preterm birth, with the intention for longer lasting interventions leading to significant downstream impact in improving long-term health in both mothers and babies.
Assuntos
Programas de Rastreamento , Pré-Eclâmpsia/fisiopatologia , Complicações na Gravidez/diagnóstico , Complicações na Gravidez/prevenção & controle , Primeiro Trimestre da Gravidez , Feminino , Humanos , Gravidez , Complicações na Gravidez/etiologiaRESUMO
Diabetes in pregnancy (DIP) is associated with an increased risk of adverse pregnancy outcomes. Unfortunately guidelines and clinical practices vary significantly and a number of key issues remain under debate. These include: glucose cut-offs for diagnosis; the approaches of universal versus selective screening; appropriate timing of screening; and acceptability of various screening strategies to the population at risk. Economic considerations are also of importance, but unfortunately data outlining the best approach from this viewpoint are limited. In this paper, we review each of these topics and examine associated barriers and challenges associated with various strategies from a European perspective. We also address options which potentially may have a future role in the care of these women including alternative diagnostic biomarkers.
Assuntos
Hiperglicemia/diagnóstico , Programas de Rastreamento/normas , Guias de Prática Clínica como Assunto/normas , Diagnóstico Precoce , Europa (Continente)/epidemiologia , Feminino , Humanos , Hiperglicemia/epidemiologia , Hiperglicemia/prevenção & controle , Programas de Rastreamento/métodos , Programas de Rastreamento/tendências , Gravidez , Resultado da Gravidez , PrevalênciaRESUMO
Hyperglycaemia in Pregnancy (HIP) is a global issue as it increases risks for both the mother and child. There remains considerable disparity in clinical practice and national policies for HIP screening. FIGO, EBCOG and EAPM have joined forces to address this disparity in clinical care and reduce the burden of inter-generational Non-Communicable disease.
Assuntos
Diabetes Gestacional/diagnóstico , Programas de Rastreamento , Europa (Continente) , Feminino , Humanos , Gravidez , Sociedades MédicasRESUMO
In recent years, interest has been focused to the study of the two major inositol stereoisomers: myo-inositol (MI) and d-chiro-inositol (DCI), because of their involvement, as second messengers of insulin, in several insulin-dependent processes, such as metabolic syndrome and polycystic ovary syndrome. Although these molecules have different functions, very often their roles have been confused, while the meaning of several observations still needs to be interpreted under a more rigorous physiological framework. With the aim of clarifying this issue, the 2013 International Consensus Conference on MI and DCI in Obstetrics and Gynecology identified opinion leaders in all fields related to this area of research. They examined seminal experimental papers and randomized clinical trials reporting the role and the use of inositol(s) in clinical practice. The main topics were the relation between inositol(s) and metabolic syndrome, polycystic ovary syndrome (with a focus on both metabolic and reproductive aspects), congenital anomalies, gestational diabetes. Clinical trials demonstrated that inositol(s) supplementation could fruitfully affect different pathophysiological aspects of disorders pertaining Obstetrics and Gynecology. The treatment of PCOS women as well as the prevention of GDM seem those clinical conditions which take more advantages from MI supplementation, when used at a dose of 2g twice/day. The clinical experience with MI is largely superior to the one with DCI. However, the existence of tissue-specific ratios, namely in the ovary, has prompted researchers to recently develop a treatment based on both molecules in the proportion of 40 (MI) to 1 (DCI).
Assuntos
Anormalidades Congênitas/metabolismo , Diabetes Gestacional/metabolismo , Inositol/metabolismo , Resistência à Insulina , Síndrome Metabólica/metabolismo , Síndrome do Ovário Policístico/metabolismo , Feminino , Humanos , Inositol/uso terapêutico , Síndrome do Ovário Policístico/tratamento farmacológico , Gravidez , Estereoisomerismo , Complexo Vitamínico B/uso terapêuticoRESUMO
OBJECTIVE: Gestational diabetes mellitus (GDM) is associated with elevated risks of perinatal complications and type 2 diabetes mellitus, and screening and intervention can reduce these risks. We quantified the cost, health impact and cost-effectiveness of GDM screening and intervention in India and Israel, settings with contrasting epidemiologic and cost environments. METHODS: We developed a decision-analysis tool (the GeDiForCE™) to assess cost-effectiveness. Using both local data and published estimates, we applied the model for a general medical facility in Chennai, India and for the largest HMO in Israel. We computed costs (discounted international dollars), averted disability-adjusted life years (DALYs) and net cost per DALY averted, compared with no GDM screening. RESULTS: The programme costs per 1000 pregnant women are $259,139 in India and $259,929 in Israel. Net costs, adjusted for averted disease, are $194,358 and $76,102, respectively. The cost per DALY averted is $1626 in India and $1830 in Israel. Sensitivity analysis findings range from $628 to $3681 per DALY averted in India and net savings of $72,420-8432 per DALY averted in Israel. CONCLUSION: GDM interventions are highly cost-effective in both Indian and Israeli settings, by World Health Organization standards. Noting large differences between these countries in GDM prevalence and costs, GDM intervention may be cost-effective in diverse settings.
Assuntos
Diabetes Mellitus Tipo 2/epidemiologia , Diabetes Mellitus Tipo 2/prevenção & controle , Diabetes Gestacional/epidemiologia , Programas de Rastreamento/economia , Cuidado Pré-Natal/economia , Análise Custo-Benefício , Técnicas de Apoio para a Decisão , Diabetes Gestacional/economia , Diabetes Gestacional/terapia , Feminino , Humanos , Índia/epidemiologia , Israel/epidemiologia , GravidezRESUMO
OBJECTIVE: To study the implications of implementing the International Association of Diabetes in Pregnancy Study Group (IADPSG) recommendations for screening and diagnosis of gestational diabetes mellitus (GDM) in Israel and explore alternative methods for identifying women at risk for adverse pregnancy outcomes. RESEARCH DESIGN AND METHODS: We analyzed data of the Israeli Hyperglycemia and Adverse Pregnancy Outcomes study participants (N = 3,345). Adverse outcome rates were calculated and compared for women who were positive according to 1) IADPSG criteria, 2) IADPSG criteria with risk stratification, or 3) screening with BMI or fasting plasma glucose (FPG). RESULTS: Adopting IADPSG recommendations would increase GDM diagnosis by â¼50%. One-third of IADPSG-positive women were at low risk for adverse outcomes and could be managed less intensively. FPG ≥89 mg/dL or BMI ≥33.5 kg/m(2) at 28-32 weeks of gestation detected proportions of adverse outcomes similar to IADPSG criteria. CONCLUSIONS: Implementing IADPSG recommendations will substantially increase GDM diagnosis. Risk stratification in IADPSG-positive women may reduce over-treatment. Screening with FPG or BMI may be a practical alternative.
Assuntos
Diabetes Gestacional/diagnóstico , Programas de Rastreamento/métodos , Programas de Rastreamento/normas , Adulto , Feminino , Teste de Tolerância a Glucose , Humanos , GravidezRESUMO
Stem cell-based regenerative medicine raises great hope for the treatment of multiple sclerosis (MS). Bone marrow-derived mesenchymal stem cells (BM-MSCs) are being tested in clinical trials. Bone marrow is the traditional source of human MSCs, but human term placenta appears to be an excellent alternative because of its availability, without ethical issues. In this study, the therapeutic effect of human placental MSCs (PL-MSCs) was evaluated in experimental autoimmune encephalomyelitis (EAE), the mice model of MS. EAE mice were transplanted intra-cerebrally with PL-MSCs or with the vehicle saline 5 or 10 days after first MOG injection. The mice were monitored for a month after therapy. A daily EAE score revealed a decrease in disease severity in the transplanted animals when compared to saline. Survival was significantly higher in the transplanted animals. In vitro experiments demonstrated that conditioned media from LPS-activated astrocytes stimulated PL-MSCs to express the gene TNF-α-stimulated gene/protein 6 (TSG-6). The same mRNA expression was obtained when PL-MSCs were exposed to TNF-α or IL1-ß. These results demonstrate that PL-MSCs have a therapeutic effect in the EAE mice model. We assume that this effect is caused by reduction of the anti-inflammatory protein, TSG-6, of the inflammatory damage.
Assuntos
Encefalomielite Autoimune Experimental/terapia , Transplante de Células-Tronco Mesenquimais/métodos , Células-Tronco Mesenquimais/citologia , Esclerose Múltipla/terapia , Placenta/citologia , Animais , Animais Recém-Nascidos , Astrócitos/citologia , Encéfalo/citologia , Ventrículos Cerebrais/citologia , Modelos Animais de Doenças , Encefalomielite Autoimune Experimental/patologia , Feminino , Humanos , Camundongos , Camundongos Endogâmicos C3H , Camundongos Endogâmicos C57BL , Esclerose Múltipla/patologia , Gravidez , Cultura Primária de Células , Índice de Gravidade de Doença , Medula Espinal/citologia , Baço/citologia , Transplante HeterólogoRESUMO
OBJECTIVE: The association between gestational diabetes mellitus (GDM), perinatal complications and long-term morbidity is gaining increased attention. However, the global burden of GDM and the existing responses are not fully understood. We aimed to assess country prevalence and to summarize practices related to GDM screening and management. METHODS: Data on prevalence and country practices were obtained from a survey administered to diabetologists, obstetricians and others working on GDM in 173 countries. RESULTS: GDM prevalence estimates range from <1% to 28%, with data derived from expert estimates, and single-site, multi-site and national prevalence assessments. Seventy-four percent of countries that completed the survey have national GDM guidelines or recommendations. Countries use a variety of screening approaches. In the countries where universal screening is recommended, the percentage of pregnant women screened ranges from 10% to >90%. CONCLUSIONS: We found large variations in estimated GDM prevalence, but direct comparison between countries is difficult due to different diagnostic strategies and subpopulations. Many countries do not perform systematic screening for GDM, and practices often diverge from guidelines. Countries need to carefully assess the cost and health impact of scaling up GDM screening and management in order to identify the best policy option for their population.
Assuntos
Diabetes Gestacional/diagnóstico , Diabetes Gestacional/epidemiologia , Diabetes Gestacional/terapia , Prática Profissional/estatística & dados numéricos , África/epidemiologia , América/epidemiologia , Ásia/epidemiologia , Coleta de Dados , Europa (Continente)/epidemiologia , Feminino , Geografia , Teste de Tolerância a Glucose/estatística & dados numéricos , Fidelidade a Diretrizes/estatística & dados numéricos , Humanos , Programas de Rastreamento/métodos , Programas de Rastreamento/estatística & dados numéricos , Região do Mediterrâneo/epidemiologia , Ilhas do Pacífico/epidemiologia , Guias de Prática Clínica como Assunto , Gravidez , PrevalênciaRESUMO
BACKGROUND AIMS: Mesenchymal stromal cells (MSC) may be useful in a range of clinical applications. The placenta has been suggested as an abundant, ethically acceptable, less immunogenic and easily accessible source of MSC. The aim of this study was to evaluate the capacity of induced placental MSC to differentiate into neurotrophic factor-producing cells (NTF) and their protective effect on neuronal cells. METHODS: MSC were isolated from placentas and characterized by fluorescence-activated cell sorting (FACS). The cells underwent an induction protocol to differentiate them into NTF. Analysis of the cellular differentiation was done using polymerase chain reactions (PCR), immunocytochemical staining and enzyme-linked immunosorbent assays (ELISA). Conditioned media from placental MSC (PL-MSC) and differentiated MSC (PL-DIFF) were collected and examined for their ability to protect neural cells. RESULTS: The immunocytochemical studies showed that the cells displayed typical MSC membrane markers. The cells differentiated into osteoblasts and adipocytes. PCR and immunohistology staining demonstrated that the induced cells expressed typical astrocytes markers and neurotrophic factors. Vascular endothelial growth factor (VEGF) levels were higher in the conditioned media from PL-DIFF compared with PL-MSC, as indicated by ELISA. Both PL-DIFF and PL-MSC conditioned media markedly protected neural cells from oxidative stress induced by H(2)O(2) and 6-hydroxydopamine. PL-DIFF conditioned medium had a superior effect on neuronal cell survival. Anti-VEGF antibodies (Bevacizumab) reduced the protective effect of the conditioned media from differentiated and undifferentiated MSC. CONCLUSIONS: This study has demonstrated a neuroprotective effect of MSC of placental origin subjected to an induction differentiation protocol. These data offer the prospect of using placenta as a source for stem cell-based therapies.
Assuntos
Transplante de Células-Tronco Mesenquimais , Células-Tronco Mesenquimais/metabolismo , Fatores de Crescimento Neural/biossíntese , Neurônios/metabolismo , Estresse Oxidativo , Placenta/citologia , Diferenciação Celular/efeitos dos fármacos , Hipóxia Celular , Separação Celular , Células Cultivadas , Meios de Cultivo Condicionados/farmacologia , Feminino , Humanos , Peróxido de Hidrogênio/metabolismo , Imuno-Histoquímica , Células-Tronco Mesenquimais/efeitos dos fármacos , Neurônios/efeitos dos fármacos , Gravidez , Fator A de Crescimento do Endotélio Vascular/imunologia , Fator A de Crescimento do Endotélio Vascular/metabolismoRESUMO
The American Diabetes Association has endorsed the demanding recommendation by the International Association of the Diabetes and Pregnancy Study Groups (IADPSG) that every pregnant woman should undergo the oral glucose tolerance test (OGTT) for the screening of gestational diabetes mellitus (GDM). The aim of this study was to find out if the fasting plasma glucose (FPG) and newer emerging technologies could simplify the cumbersome IADPSG algorithm. Two FPG thresholds (of the OGTT) were used to rule in and rule out GDM in the Hyperglycemia and Adverse Pregnancy Outcome (HAPO) cohort (n = 23316) and a population at high risk for GDM (n = 10283). For the HAPO cohort and the high-risk population, respectively, FPG thresholds of: (a) ≥ 5.1 mmol/L (specificity 100%) independently ruled in GDM in 1769 (8.3%) women and 2975 (28.9%) women; and (b) ≤ 4.4 mmol/L ruled out GDM in 11526 (49.4%) women (84.1% sensitivity) and 2228 (21.7%) women (95.4% sensitivity). Use of the FPG independently could have avoided 13295 (57.0%) and 5203 (50.6%) OGTTs in the 2 groups. The initial FPG-by significantly reducing the number of cumbersome OGTTs needed-can make the IADPSG recommendations more acceptable worldwide. The number of GDM women missed is population dependent. For low-resource countries, alternative newer and cheaper tests in development hold an exciting future.
Assuntos
Algoritmos , Diabetes Gestacional/diagnóstico , Teste de Tolerância a Glucose/economia , Programas de Rastreamento/economia , Diabetes Gestacional/economia , Jejum/sangue , Feminino , Guias como Assunto , Humanos , Hiperglicemia/diagnóstico , Gravidez , Complicações na Gravidez/diagnóstico , Complicações na Gravidez/economia , Sensibilidade e EspecificidadeRESUMO
The current practice for diagnosing gestational diabetes mellitus (GDM) in Israel employs a two-step screening approach using a 50 g glucose challenge test (GCT) followed by a 3-hour 100 g oral glucose tolerance test (OGTT). The overall adherence to this process is more than 90%. Recently, the International Association of the Diabetes and Pregnancy Study Groups (IADPSG) recommended changing this practice to a single-step GDM screening, employing a 75 g OGTT. New plasma glucose cutoffs were recommended. To make recommendations for a new screening and diagnosis policy for GDM in Israel, a committee was assembled, including representatives of professional medical organizations, health maintenance organizations (HMOs), health policy makers, epidemiologists and biostatisticians. There was agreement that a consensus can be achieved only by clinical evidence and that consensus is a key factor for changing health policy. It was also realized that the availability of local data on the annual rates of GDM, its complications, and cost-effectiveness of screening and treatment are suboptimal. This generated two studies: the first provided additional analyses of data concerning Israeli women participating in the Hyperglycemia and Adverse Pregnancy Outcome (HAPO) study, and the second was a cost-effectiveness analysis based on Clalit Health Service's (the largest HMO in the country) database. We found that the prevalence of GDM in Israel is approximately 6% and is expected to increase to 9% by adopting the new IADPSG recommendations. The conclusion was that a one-step approach is presumed to be not only cost-effective but cost-saving, even under conservative estimates. We recommend such a process for other countries debating whether to change their GDM screening and diagnostic approach.