Fibroma bilateral de ovario en mujer posmenopáusica. Reporte de un caso y revisión de la literatura / Bilateral ovarian fibroma in postmenopausal woman. Case report and literature review

Los fibromas ováricos son tumores benignos poco frecuentes, generalmente unilaterales, que se presentan principalmente en mujeres perimenopáusicas y posmenopáusicas. Los síntomas pueden variar y en algunos casos están asociados a ascitis y derrame pleural, conocido como síndrome de Meigs. Se presenta un caso de una paciente de 55 años de edad con antecedentes de hipertensión arterial y asma bronquial, quién acude a ginecólogo por dolor en fosa ilíaca derecha de tres meses de evolución. Se realizan diferentes estudios incluyendo ecografía y tomografía abdomino-pélvica, los cuales revelan una tumoración sólida bilateral de ovarios. Se realiza histerectomía abdominal total más salpingo-oforectomía bilateral y a pesar de sus características, el estudio histopatológico hace el diagnóstico de fibroma bilateral. La presentación clínica de los fibromas de ovario es inespecífica, por lo que suelen confundirse con patología maligna del ovario u otras patologías benignas de útero u ovario, constituyendo un reto para el diagnóstico preoperatorio(AU)

Ovarian fibromas are rare tumors that mainly occur in perimenopausal and postmenopausal women. Symptoms can vary, and in some cases, they may be associated with ascites and pleural effusion, known as Meigs Syndrome. The article presents the case of a 55-year-old patient with a history of hypertension and bronchial asthma, who visit a gynecologist due to pain in the right iliac fossa of three months duration. Various studies were performed, including ultrasound and abdominal and pelvic CT, which reveal the presence of solid bilateral ovarian tumors. The patient undergoes a total hysterectomy and bilateral salpingo-oophorectomy and despite it's characteristics, the histopathological study makes the diagnosis of bilateral ovarian fibroma with no signs of malignancy. The clinical presentation of ovarian fibromas is nonspecific, often leading to confusion with malignant ovarian pathology or other benign uterine or ovarian conditions, representing a challenge for preoperative diagnosis(AU)

Association of pulmonary function with functional capacity among middle-aged women / Associação da função pulmonar com capacidade funcional em mulheres de meia idade

INTRODUCTION: Age-related decline in pulmonary function and functional capacity is seen in adults. The menopausal process leads to a decline in pulmonary function and functional capacity which is essential in maintaining independence in daily life. OBJECTIVE: The present study aimed to explore the association of pulmonary function with functional capacity among middle-aged women. METHODS: One hundred and eight female participants aged 40­55 years were included in this cross-sectional study; depending on their menstrual history participants were classified as premenopausal and postmenopausal. After initial screening and assessment, six-minute walk test (6MWT) and pulmonary function (FEV1, FVC, FEV1/FVC) were recorded as per standardised guidelines. The mean and standard deviation for all continuous variables were calculated. Correlations were estimated using Pearson's coefficient of correlation. A comparison of premenopausal and postmenopausal groups was done by independent t-test. A two-tailed p-value < 0.05 was considered statistically significant. RESULTS: There were significant differences in values of six-minute walk distance (6MWD) and pulmonary function values of pre and postmenopausal women (p < 0.05). The Pearson coefficient of correlation showed significant association of FEV1, FVC and FEV1/FVC with 6MWD among middle-aged women. There was fair positive correlation of FEV1 (r = 0.391, p = 0.002) and FEV1/ FVC (r = 0.395, p = 0.002) with 6MWD among postmenopausal women. CONCLUSION: There exists a fair positive correlation of pulmonary function with 6MWD among middle-aged women particularly postmenopausal women. Early screening of respiratory health and functional capacity should be initiated for middle-aged women as a preventive strategy.

INTRODUÇÃO: O declínio da função pulmonar e da capacidade funcional relacionado à idade é observado em adultos. O processo menopausal leva ao declínio da capacidade pulmonar e funcional, essencial para a manutenção da independência na vida diária. OBJETIVO: O presente estudo teve como objetivo explorar a associação da função pulmonar com a capacidade funcional em mulheres de meia idade. MÉTODOS: Cento e oito participantes do sexo feminino com idade entre 40 e 55 anos foram incluídas neste estudo transversal; dependendo da história menstrual, as participantes foram classificadas como pré-menopausa e pós-menopausa. Após triagem e avaliação inicial, teste de caminhada de seis minutos (TC6M) e função pulmonar (VEF1, CVF, VEF1/CVF) foram registrados de acordo com diretrizes padronizadas. Foram calculados média e desvio padrão para todas as variáveis contínuas. As correlações foram estimadas pelo coeficiente de correlação de Pearson. A comparação do grupo pré-menopausa e pós-menopausa foi feita por teste t independente. Um valor de p bicaudal < 0,05 foi considerado estatisticamente significativo. RESULTADOS: Houve diferenças significativas nos valores da distância caminhada de seis minutos (DC6M) e nos valores da função pulmonar de mulheres pré e pós-menopausa (p < 0,05). O coeficiente de correlação de Pearson mostrou associação significativa de VEF1, CVF e VEF1/CVF com a DC6M entre mulheres de meia idade. Houve correlação positive moderada do VEF1 (r = 0,391, p = 0,002) e VEF1/CVF (r = 0,395, p = 0,002) com a DC6M entre mulheres na pós-menopausa. CONCLUSÃO: Existe correlação positiva moderada da função pulmonar com a DC6M entre mulheres de meia idade, particularmente mulheres na pós-menopausa. O rastreio precoce da saúde respiratória e da capacidade funcional deve ser iniciado nas mulheres de meia idade como estratégia preventiva.

Laser therapy for genitourinary syndrome of menopause: systematic review and meta-analysis of randomized controlled trial

Abstract Objective: This meta-analysis of randomized controlled trials (RCTs) aimed to update evidence on the effectiveness and safety of laser therapy for treating genitourinary syndrome of menopause (GSM). Data sources: Manuscripts published until May 2023 were systematically searched in PubMed; Embase; Scopus; Web of Science; CENTRAL; CINAHL; and clinical trial databases (www.trialscentral.org, www.controlled-trials.com, and clinicaltrials.gov), with no language and year of publication restriction. Studies selection: RCTs with women diagnosed with GSM, and the intervention was vaginal laser therapy (CO2-laser or Er: YAG-laser) comparing with placebo (sham therapy), no treatment or vaginal estrogen therapy. Data collection: Two authors evaluated the publications for inclusion based on the title and abstract, followed by reviewing the relevant full-text articles. Disagreements during the review process were addressed by consensus, with the involvement of a third author. Data synthesis: Twelve RCTs, representing a total of 5147 participants, were included in this review. Vaginal health index (VHI) significantly improved in the carbon dioxide laser (CO2-laser) therapy group (MD=2.21; 95% CI=1.25 to 3.16), while dyspareunia (MD=−0.85; 95% CI=−1.59 to −0.10), dryness (MD=−0.62; 95% CI=−1.12 to −0.12) and burning (MD= −0.64; 95% CI=−1.28 to −0.01) decreased. No serious adverse effects were reported. Conclusion: CO2-laser increases VHI score and decreases dyspareunia, dryness and burning, especially when compared to sham-laser. However, the certainty of the evidence is low, thus preventing the recommendation of laser therapy for GSM management.

Skeletal muscle mass obtained by anthropometric equation and presence of sarcopenia in postmenopausal women

Abstract Objective: To analyze the amount of muscle and the presence of sarcopenia in postmenopausal women using different methods, verifying the agreement between them as to skeletal muscle mass (SMM). Methods: This cross-sectional observational study was conducted with postmenopausal women aged ≥ 50 years. SMM was obtained from a predictive equation, Bioelectrical Impedance (BIA), and Dual Energy X-Ray Absorptiometry (DXA). The skeletal muscle mass index (SMI) and the appendicular skeletal muscle mass index (ASMI) were calculated. The cut-off point of SMI was determined for the population itself. The agreement between the SMI obtained using the different methods was verified. Sarcopenia was diagnosed according to the criteria proposed by the European Working Group on Sarcopenia in Older People 2 (EWGSOP2). The significance level adopted for all tests was 5.0%. Results: A total of 112 women were evaluated, with an average age of 66.1 ± 5.65 years. Among them, 51.8% were sufficiently active and 43.8% were overweight and obese. The SMI cut-offs were 6.46 kg/m2 for the predictive equation and 7.66 kg/m2 for BIA, with high sensitivity and specificity. There was an excellent agreement in the identification of SMM by the predictive equation (0.89 [0.824-0.917], p < 0.001) and BIA (0.92 [0.883-0.945], p < 0.001), in reference to DXA. The prevalence of sarcopenia was 0.9%, 1.8%, and 2.7% according to BIA, DXA, and the predictive equation, respectively. Conclusion: The predictive equation showed the expected agreement in estimating skeletal muscle mass in postmenopausal women, offering a viable and accurate alternative.

Masa ósea en mujeres de edad mediana del Policlínico 19 de abril / Bone Mass in Middle-Aged Women from Policlínico 19 de Abril of Havana

Introducción: La osteoporosis es una enfermedad esquelética difusa caracterizada por una disminución generalizada de la resistencia ósea, que predispone a un mayor riesgo de fracturas por fragilidad y está reconocida como un grave problema de salud. Objetivo: Determinar la masa ósea en mujeres de edad mediana y algunos factores relacionados con ella. Métodos: Se realizó un estudio descriptivo transversal en mujeres de edad mediana del Policlínico 19 de abril. De la planilla de recolección de datos se extrajeron: edad, color de la piel, etapa climatérica, número de partos, meses de lactancia, resultados hormonales. Se realizó densitometría para determinar mujeres con hueso normal, baja masa ósea u osteopenia y osteoporosis, y se asociaron con algunos factores de riesgo. Resultados: Se estudiaron 82 mujeres. El 67,07 por ciento tuvo masa ósea normal en la columna lumbar, un 19,51 por ciento baja masa ósea u osteopenia y un 13,42 por ciento osteoporosis. En la cadera izquierda la mayoría (91,46 por ciento) presentó masa ósea normal. De las perimenopáusicas, una entre 50 y 54 años presentó baja masa ósea; en posmenopáusicas predominó la osteoporosis en el grupo de 50-54 (50 por ciento), en las de 55-59, las que tenían hueso normal y osteopenia (41,2 por ciento cada una). En las posmenopáusicas, las que tenían la piel blanca fueron las que presentaron mayor afectación de la masa ósea. A mayor tiempo de posmenopausia menor masa ósea (p= 0,031*), a niveles más elevados de hormona luteinizante (p= 0,000) y foliculoestimulante (p= 0,000), menor densidad mineral ósea en la columna lumbar y cadera izquierda; a niveles más elevados de estradiol (p= 0,000), mayor densidad mineral ósea en ambas localizaciones. Conclusiones: Se concluye que la mayoría de las mujeres de edad mediana del policlínico 19 de abril tenían hueso normal; la osteoporosis predominó en los grupos de mayor edad y el color de la piel blanca. Mayor tiempo de posmenopausia y niveles elevados de hormona luteinizante y foliculoestimulante se asociaron con mala masa ósea; niveles elevados de estradiol con mejor masa ósea(AU)

Introduction: Osteoporosis is a diffuse skeletal disease characterized by a generalized decrease in bone resistance, which predisposes patients to an increased risk of fragility fractures and is recognized as a serious health problem. Objective: To determine bone mass in middle-aged women and some factors related to it. Methods: A descriptive and cross-sectional study was carried out in middle-aged women from the Policlínico 19 de Abril. The following data were extracted from the data collection form: age, skin color, climacteric stage, number of deliveries, breastfeeding months, hormonal results. Densitometry was performed to determine women with normal bone, low bone mass or osteopenia and osteoporosis, and these were associated with some risk factors. Results: A group of 82 women were studied. Of them, 67.07percent had normal bone mass in the lumbar spine, 19.51percent had low bone mass or osteopenia, and 13.42percent ad osteoporosis. On the left hip, the majority (91.46percent) had normal bone mass. Of the perimenopausal women, one aged 50-54 years had low bone mass; among postmenopausal women, osteoporosis predominated in the 50-54 age group (50percent), as well as in those aged 55-59, those with normal bone mass and osteopenia (41.2percent for each condition). In the postmenopausal women, those with white skin were the most affected in bone mass. The longer the postmenopausal period, the lower the bone mass (p = 0.031*); the higher the levels of luteinizing hormone (p = 0.000) and the follicle stimulating hormone (p = 0.000), the lower bone mineral density on the lumbar spine and left hip; the higher the levels of estradiol (p = 0.000), the higher bone mineral density on both locations. Conclusions: Most middle-aged women from the Policlínico April 19 were concluded to have normal bone; osteoporosis predominated in older age groups and white skin color. Longer postmenopausal time and higher levels of luteinizing hormone and the follicle stimulating hormone were associated with poor bone mass; high levels of estradiol were associated with better bone mass(AU)

Asociación entre el síndrome metabólico y el cáncer de mama en mujeres posmenopáusicas: Un estudio observacional de centro único / Association between metabolic syndrome and breast cancer in postmenopausal women: A single-center observational study

Introducción: El factor de riesgo más importante para el desarrollo del síndrome metabólico (SM) es la obesidad, un estado pro inflamatorio con alteraciones sistémicas y locales vinculadas al crecimiento tumoral, siendo un determinante en el desarrollo del cáncer de mama en la posmenopausia, en su pronóstico y en la eficacia del tratamiento. El objetivo del presente estudio fue determinar la asociación entre el SM y el Cáncer de Mama en mujeres posmenopáusicas comparradas con un grupo control. Materiales y métodos: El estudio fue de diseño observacional, analítico; se llevó a cabo en el Hospital de SOLCA-Guayaquil entre enero a diciembre del 2019. El muestreo fue no probabilístico. Se incluyeron casos de mujeres de 50 ­ 70 años con patología de mama. Las variables fueron presencia de síndrome metabólico y diagnóstico de cáncer de mama en mujeres posmenopaúsicas. Se utilizó Chi cuadrado, Odds Ratio, el intervalo de confianza al 95 % y valor P < 0.05 para revisar la significancia estadística. Resultados: Ingresaron al estudio 157 casos, 107 en el grupo con cáncer de mama (G1) y 50 mujeres (31 %) sin patología maligna (G2). La edad en G1 fue de 59.9±9.9 años en G2 55.5±5.5 (P=0.001). El índice de masa corporal fue 29.05±1.2 en G1 y 26.80±1.3 en G2 (P<0.001). OR del SM para el desarrollo de Cáncer de mama fue 4.60 (IC 95% 2.23-9.51 ) P<0.0001. OR del SM para el desarrollo de cáncer de mama en mujeres menores a 54 años fue de 0.22 (0.069-0.72), P=0.0118. No hubo asociaciones por tipo histológico. Conclusión: Existe asociación entre el SM y el cáncer de mama en mujeres posmenopáusicas, por lo que se debe considerar la salud metabólica como un factor de riesgo clínicamente relevante y modificable para el desarrollo del cáncer.

Introduction: The most critical risk factor for developing metabolic syndrome (MS) is obesity, a pro-inflammatory state with systemic and local alterations linked to tumor growth. It is a determinant in developing postmenopausal breast cancer in its prognosis. and the efficacy of treatment. This study aimed to determine the association between MS and Breast Cancer in postmenopausal women compared to a control group. Materials and methods: The study had an observational, analytical design at the SOLCA-Guayaquil Hospital between January and December 2019. The sampling was non-probabilistic. Cases of women between 50 and 70 years of age with breast pathology were included. The variables were the presence of metabolic syndrome and diagnosis of breast cancer in postmenopausal women. Chi-square, Odds Ratio, 95% confidence interval, and P value < 0.05 were used to review statistical significance. Results: 157 cases entered the study, 107 in the group with breast cancer (G1) and 50 women (31%) without malignancy (G2). The age in G1 was 59.9±9.9 years in G2 55.5±5.5 (P=0.001). The body mass index was 29.05±1.2 in G1 and 26.80±1.3 in G2 (P<0.001). OR of the MS for the development of breast cancer was 4.60 (95% CI 2.23-9.51) P<0.0001. OR of the MS for the development of breast cancer in women under 54 years of age was 0.22 (0.069-0.72), P=0.0118. There were no associations by histological type. Conclusion: There is an association between MS and breast cancer in postmenopausal women, so metabolic health should be considered a clinically relevant and modifiable risk factor for cancer development.

Relación de triglicéridos y estimación de riesgocardiovasculares en mujeres posmenopáusicas / Triglyceride ratio and cardiovascular risk estimation inpostmenopausal women

Objetivo: Determinar la relación de triglicéridos basales, con el riesgo a desarrollar enfermedades cardiovasculares en mujeres posmenopáusicas. Método: Estudio descriptivo, observacional y transversal, donde a 31 pacientes posmenopáusicas y sin antecedentes de enfermedades cardiometabólicas, se les determinó parámetros antropométricos (peso, talla, índice de masa corporal -IMC-); perfil lipídico en ayunas (colesterol total, triglicéridos o TG, lipoproteínas de baja y alta densidad -LDL, HDL-), por método enzimático colorimétrico, apolipoproteína B 100 (Apo B-100) por inmunodifusión radial, índices matemáticos LDL/Apo B-100y TG/HDL y cálculo de colesterol no-HDL. Resultados: los promedio y desviación de las variables fueron: edad:59±5 años con tiempo de posmenopausia: 8,77±3,92 años; IMC:27,6±4,4 kg/m.; colesterol total: 194±36 mg/dl; triglicéridos: 85±35 mg/dl; HDL: 33±8 mg/dl; LDL: 144±33 mg/dl; no-HDL: 159±37 mg/dl; Apo B-100: 172±246 mg/dl; LDL/Apo B-100: 1,15±0,03 y TG/HDL: 4,46±1,28. Discusión: Las pacientes se encontraron con sobrepeso, triglicéridos normales, colesterol total y LDL aumentado y las HDL bajas. El LDL-C/Apo B-100-100, que se relaciona con el tamaño y densidad de LDL, estuvo por debajo de 1,3 indicando la presencia de partículas pequeñas-densas, mientras TG/HDL, que se usa para estimar riesgo cardiovascular, estuvo por encima del corte establecido de 3,5. Conclusiones: Al relacionar los triglicéridos basales con LDL/Apo B-100 y TG/HDL, se observa que a partir del valor de triglicéridos de 100 mg/dl, se observa la presencia de partículas de lipoproteínas pequeñas-densas, y un alto riesgo cardiovascular, por lo que es necesario en mujeres posmenopáusicas el seguimiento a partir del valor de triglicéridos en 100 mg/dL ya que pudiera implicar el desarrollo de enfermedades cardiovasculares, en esta población(AU)

Objective: To determine the relationship of basal triglycerides with the risk of developing cardiovascular disease in postmenopausal women. Method: Descriptive, observational and cross-sectional study, where 31 postmenopause patients with no history of cardiometabolic disease were determined anthropometric parameters (weight, height, BMI); fasting lipid profile (total cholesterol, triglycerides or TG, LDL,HDL, by colorimetric enzymatic method), Apo B-100 (byradial immunodiffusion), LDL/Apo B-100 and TG/HDL mathematical indices and calculation of non-HDL cholesterol. Results: the mean and deviation of the variables were: age:59±5 years with postmenopause time: 8.77±3.92 years; BMI:27.6±4.4 kg/m2; total cholesterol: 194±36 mg/dl; triglycerides:85±35 mg/dl; HDL: 33±8 mg/dl; LDL: 144±33 mg/dl; non-HDL: 159±37 mg/dl; Apo B-100: 172±246 mg/dl; LDL/Apo B-100: 1.15±0.03 and TG/HDL: 4.46±1.28. Discussion: Patients were found to be overweight, normal triglycerides, total and LDL cholesterol high, and low HDL. LDL-C/ApoB-100-100, which is related to LDL size and density, was below 1.3 indicating the presence of small-dense particles, while TG/HDL, which is used to estimate cardiovascular risk, was above the established cut-off of 3.5. Conclusions: When relating the basal triglycerides with LDL/Apo B-100 and TG/HDL, it is observed that from the triglyceride value of 100mg/dl, the presence of small-dense lipoprotein particuals anda high cardiovascular risk is observed, so it is necessary in postmenopausal women to follow up from the triglycerid evalue in 100 mg/dL since it could imply the development of cardiovascular diseases, in this population(AU)

Relationship between vitamin B12 levels and insulin resistance in postmenopausal women from Colombia Caribbean / Relação entre níveis de vitamina B12 e resistência à insulina em mulheres na pós-menopausa da Colômbia Caribe

Introduction: The high prevalence of low vitamin B12 serum levels has been recognized as a public health problem in Latin America; however, the current magnitude of this deficiency in Colombia is uncertain. Low levels of vitamin B12 can induce clinical and subclinical hematological and neurological disorders. Epidemiological studies have demonstrated a relationship between vitamin B12 deficiency and cardiovascular diseases (CVDs). However, the role of vitamin B12 in insulin resistance has been poorly studied. Objective: This study aimed to evaluate the relationship between vitamin B12 serum levels and biochemical and anthropometric markers related to CVDs and insulin resistance in postmenopausal women from Colombia Caribbean. Methods: Correlational, descriptive study. By convenience sampling, 182 postmenopausal women from the medical consultation service of a health institution were linked. Serum vitamin B12 levels, anthropometric variables (body mass index, abdominal perimeter), and biochemical variables (glycemia, insulin, lipid profile, HOMA IR) were evaluated. Results: The average value of the vitamin B12 serum level was 312.5 ± 122.5 pg/mL (230.6 ± 90.4 pmol/L); 46.7% of the women had less than adequate levels of 300 pg/mL (> 221 pmol/L), and 9. 9% were deficient, with levels of less than 200 pg/mL (148 pmol/L). The women with metabolic syndrome were 63.7%, and according to HOMA IR, 52.7 % had insulin resistance. A significant inverse relationship was shown between serum vitamin B12 levels with basal glycemic (P =0.002) and HOMA-IR (P =0.040). Conclusions: A significant inverse relationship between vitamin B12 levels and basal glycemia and HOMA-IR was observed. These findings highlight vitamin B12 deficiency in postmenopausal women and suggest nutritional supplementation.Keywords: Vitamin B12, Insulin resistance, Diet, Postmenopause, Cardiovascular diseases (AU).

Introdução: A alta prevalência de baixos níveis séricos de vitamina B12 foi reconhecida como um problema de saúde pública na América Latina, mas a magnitude atual dessa deficiência na Colômbia é incerta. Baixos níveis de vitamina B12 podem induzir distúrbios hematológicos e neurológicos clínicos e subclínicos. Na verdade, estudos epidemiológicos demonstram uma relação entre deficiência de vitamina B12 e doenças cardiovasculares (DCVs). No entanto, o papel da vitamina B12 na resistência à insulina tem sido pouco estudado. Objetivo: O objetivo deste estudo foi avaliar a relação entre os níveis séricos de vitamina B12 e marcadores bioquímicos e antropométricos relacionados com doenças cardiovasculares e resistência à insulina em mulheres pós-menopáusicas da Colômbia Caribe. Métodos: Estudo correlacional, descritivo. Por amostragem de conveniência, foram vinculadas 182 mulheres na pós-menopausa do serviço de consulta médica de uma instituição de saúde. Níveis séricos de vitamina B12, variáveis antropométricas (índice de massa corporal, perímetro abdominal) e variáveis bioquímicas (glicemia, insulina, perfil lipídico, HOMA IR) foram avaliadas. Resultados: O valor médio do nível sérico de vitamina B12 foi de 312,5 ± 122,5 pg/mL (230,6 ± 90,4 pmol/L); 46,7% das mulheres tinham níveis abaixo do adequado de 300 pg/mL (> 221 pmol/L), e 9,9% eram deficientes, com níveis abaixo de 200 pg/mL (148 pmol/L).As mulheres com síndrome metabólica foram 63,7% e, segundo o HOMA IR, 52,7% apresentavam resistência à insulina. Uma relação inversa significativa entre os níveis séricos de vitamina B12 com glicemia basal (P = 0,002) e HOMA-IR (P = 0,040) foi mostrada. Conclusões: Foi observada uma relação inversa significativa entre os níveis de vitamina B12 e glicemia basal e HOMA-IR. Esses achados destacam a deficiência de vitamina B12 em mulheres na pós-menopausa e sugerem suplementação nutricional (AU).

Study on the relationship between the age at natural menopause and postmenopausal metabolic syndrome / 中华预防医学杂志

To explore the relationship between the early or delayed age at natural menopause and metabolic syndrome (MS) in women. A total of 4 734 natural menopausal women who completed the baseline survey from November 2017 to January 2020 in the Guangzhou Middle-aged and Elderly Chronic Disease Prospective Cohort Study were selected in this cross-sectional study. Data on general demographic characteristics, disease history and female physiological health indicators were collected. Logistic regression model and restricted cubic spline curve were used to analyze the relationship between the age at natural menopause and MS. The results showed that the mean age of the subjects was (60±6) years old. The median (Q1,Q3) age at natural menopause was 50 (49, 52) years old, and the prevalence of MS was 14.8%(699/4 734). After adjusting for confounders, the age at natural menopause was closely related to MS in an approximate"U"shape. Compared with the group of normal age at natural menopause, the early age at menopause (OR=1.52, 95%CI: 1.12-2.06) and delayed age at menopause (OR=1.77, 95%CI: 1.36-2.30) had a higher risk of MS. In the group with time since menopause ≤6 years and 7-9 years, the risk of MS in the group with delayed age at menopause was 2.40 times (95%CI: 1.54-3.75) and 2.19 times (95%CI: 1.11-4.31) higher than that in the group with normal menopausal age, respectively. In conclusion, the early and delayed age at natural menopause increased the risk of MS. The increased risk of MS in delayed age at natural menopause mainly occurred within 10 years since menopause.

Iron accumulation and its impact on osteoporotic fractures in postmenopausal women / 浙江大学学报（英文版）（B辑：生物医学和生物技术）

Postmenopausal osteoporosis is a kind of degenerative disease, also described as "invisible killer." Estrogen is generally considered as the key hormone for women to maintain bone mineral content during their lives. Iron accumulation refers to a state of human serum ferritin that is higher than the normal value but less than 1000 μg/L. It has been found that iron accumulation and osteoporosis could occur simultaneously with the decrease in estrogen level after menopause. In recent years, many studies indicated that iron accumulation plays a vital role in postmenopausal osteoporosis, and a significant correlation has been found between iron accumulation and fragility fractures. In this review, we summarize and analyze the relevant literature including randomized controlled trials, systematic reviews, and meta-analyses between January 1996 and July 2022. We investigate the mechanism of the effect of iron accumulation on bone metabolism and discuss the relationship of iron accumulation, osteoporosis, and postmenopausal fragility fractures, as well as the main clinical treatment strategies. We conclude that it is necessary to pay attention to the phenomenon of iron accumulation in postmenopausal women with osteoporosis and explore the in-depth mechanism of abnormal bone metabolism caused by iron accumulation, in order to facilitate the discovery of effective therapeutic targets for postmenopausal osteoporosis.

Effects of denosumab on bone mineral density around proximal femoral prosthesis after total hip replacement in postmenopausal osteoporotic patients / 中国骨伤

OBJECTIVE@#To evaluate the effect of denosumab on bone mineral density around proximal femoral prosthesis after total hip arthroplasty(THA) in the postmenopausal osteoporotic patients.@*METHODS@#Fifty-four consecutive patients underwent unilateral primary THA were included in this retrospective study. Twenty-five patients received denosumab for osteoporosis as the treatment group, and the twenty-nine without denosumab were the control group. At 1 week, 3month, 6 months, and 12 months after THA, bone turnover markers and proximal femoral periprosthetic bone mineral density (BMD) were measured.@*RESULTS@#At 3, 6 and 12 months after operation, the level of TRACP-5b in the control group was significantly higher than that in the treatment group (P<0.05);the level of bone-specific alkaline phosphatase (BALP) between two groups showed significant difference in 12 months after operation (control group was higher than treatment group, P<0.05). The BMD of Gruen 1 and Gruen 7 decreased at 3, 6 and 12 months after operation compared with 1 week after operation. Comparing the treatment group and the control group, the differences of the the decrease of BMD in Gruen 1 and Gruen 7 were no significant at 3 months after surgery. In Gruen 1, Gruen 7 at 6 months after operation and Gruen 1, Gruen 7 at 12 months after operation, the decrease of BMD in the control group was significantly higher than that in the treatment group(P<0.05). It is suggested that desudumab could inhibit the loss of BMD after 6 months, and continuously show a protective effect on bone mass at 12 months after operation.@*CONCLUSION@#After THA in postmenopausal patients with osteoporotic femoral neck fracture, Desuzumab can reduce the loss of BMD around the proximal femoral prosthesis and effectively inhibit bone resorption.

Affective response of postmenopausal women to resistance training on stable and unstable surfaces: a randomized cross-over study / Respostas afetivas de mulheres pós-menopausadas submetidas ao treinamento com pesos em superfície estável e instável: um estudo cross-over randomizado

Objective: To compare the affective response of postmenopausal women who undergo 6 weeks of resistance training on stable and unstable surfaces. Methods: This randomized counterbalanced cross-over study carried included 14 postmenopausal women (55 [SD, 3] years; height 1.55 [SD, 0.03] m; body mass 78.70 [SD, 12.00] kg; and body mass index 32.80 [SD, 4.90] kg/m²), who underwent 6 weeks of resistance training on stable and unstable surfaces. The participants were initially allocated to 1 experimental condition (stable or unstable) in a randomized counterbalanced manner. The intervention consisted of 8 exercises in 3 series of 8-10 repetitions, with intervals of 60-90 seconds, for 3 weeks. After the first 3-week protocol, they were switched to the other experimental condition for another 3 weeks. To evaluate affective response, the Hardy and Rejeski Sensation Scale was applied weekly at the end of each exercise and again at the end of the 6 weeks. Results: Affective response was similar to the general affect observed at the end of the sessions (stable surface: 5.00 [3.00]; unstable surface: 5.00 [1.00]; p = 0.114), except for the bridge exercise (stable surface: 3.00 [2.00]; unstable surface: 4.00 [2.00]; p = 0.048]). Conclusions: The affective response of these women was not affected by training on unstable surfaces, except for the bridge exercise, in which the unstable surface increased affective response

Objetivo: Comparar as respostas afetivas de mulheres pós-menopausadas submetidas a seis semanas de treinamento com pesos realizado em superfície estável e instável. Metodologia: Trata-se de um estudo cross-over, randomizado e contrabalanceado realizado com 14 mulheres pós-menopausadas (55 ± 3 anos; estatura de 1,55 ± 0,03 m; massa corporal 78,70 ± 12,00 kg; e índice de massa corporal de 32,80 ± 4,90 kg/m²) submetidas a seis semanas de treinamento com pesos em superfície estável e instável. As participantes foram alocadas, inicialmente, numa das condições experimentais de forma randomizada e contrabalanceada. A intervenção foi composta por oito exercícios em três séries de oito a dez repetições, com intervalos entre 60 e 90 segundos, durante três semanas. Para avaliação das respostas afetivas, foi aplicada a Escala de Sensação de Hardy e Rejeski ao fim da última série de cada exercício e ao final das sessões, durante as seis semanas. Resultados: As respostas afetivas foram similares para o afeto geral observado ao final das sessões [Superfície estável: 5,00 (3,00); Superfície instável: 5,00 (1,00); p = 0,114], mas não para o exercício de ponte [Superfície estável: 3,00 (2,00); Superfície instável: 4,00 (2,00); p = 0,048)]. Conclusões: Conclui-se que as respostas afetivas de mulheres pós-menopausadas, observadas ao final da sessão, não foram afetas pela instabilidade. Contudo, as sensações de prazer, no exercício de ponte, foram maiores com a inserção da instabilidade

Vitamin D is associated with a low quality of life: a primary care study

Introduction: Some studies have described impairment in quality of life of vitamin-deficient subjects. However, little is known about this association in primary care. This study aimed to evaluate the association between vitamin D deficiency and quality of life in postmenopausal women attending primary care in the municipality of Santa Maria ­ Brazil. Methods: A cross-sectional study was carried out with postmenopausal women over 55 years of age, accompanied in primary care, from March to August 2014. These women were randomly selected among the participants of a cohort study in the municipality of Santa Maria ­ Brazil. Data were collected through a standardized questionnaire, quality of life was assessed using the Short Form-36 Health Survey (SF-36), and 25-hydroxyvitamin D were measured using the ALPCO® ELISA method. Results: Of the total of 78 studied women, 11.54% had vitamin D deficiency. Women with vitamin D deficiency had a poorer quality of life assessed by SF-36. In the regression analysis, both vitamin D deficiency and falls were independently associated with a lower physical component of the SF-36. Conclusion: Vitamin D deficiency is associated with poorer quality of life in the studied postmenopausal women.

Prevalência e severidade de sintomas em mulheres na menopausa: um estudo descritivo / Prevalence and severity of symptoms in women in the menopause: a cross-sectional study

Introdução: Muitas mulheres sofrem com sintomas associados à menopausa, que podem apresentar diferentes graus de intensidade e afetar sua qualidade de vida. Objetivo: Identificar a prevalência e severidade dos principais sintomas nas diferentes fases do climatério. Métodos: Foram selecionadas mulheres com idades entre 40 e 65 anos, que responderam a um questionário on-line com dados sociodemográficos, de saúde, alimentação e características menstruais e de menopausa. Para avaliar os sintomas da menopausa e sua intensidade, foi aplicado o questionário internacional validado Menopause Rating Scale (MRS). Resultados: Foram incluídas 283 mulheres (36,8% na pré-menopausa, 24% na perimenopausa e 39,2% na pós-menopausa). Excesso de peso foi mais prevalente na perimenopausa do que na pré-menopausa (P=0,012). Sintomas como diminuição da libido, secura vaginal, incontinência urinária, dores musculares e articulares, alterações lipídicas e ondas de calor, calorões, foram mais prevalentes em valores absolutos nas mulheres pós-menopausa. As mulheres no período de perimenopausa apresentaram maior prevalência, em valores absolutos, de estresse, irritabilidade, dor de cabeça, problemas na pele, falta de concentração/memória, distúrbios do sono e fadiga. De acordo com o MRS, não houve diferença no domínio psicossocial (P=0,265) e os sintomas somato-vegetativos e urogenitais são mais intensos nas mulheres na perimenopausa e pós-menopausa, quando comparadas com as mulheres na pré-menopausa (P<0,001). O escore global do questionário também demonstra essa intensidade menor no grupo pré-menopausa (P=0,001). Conclusões: Este estudo demonstrou uma prevalência e severidade maior de sintomas em mulheres na perimenopausa e pós-menopausa, o que pode prejudicar a qualidade de vida dessas mulheres nessa fase da vida

Introduction: Many women experience symptoms associated with menopause that present with different degrees of intensity and affect their quality of life. Objective: To identify the prevalence and severity of the main symptoms during different climacteric phases. Methods: Women aged 40­65 years answered an online questionnaire on sociodemographic data, health, diet, menstrual, and menopausal characteristics. The internationally validated Menopause Rating Scale (MRS) questionnaire was used to assess menopausal symptoms and their intensities. Results: 283 women were included (36.8% pre-menopausal, 24% peri-menopausal, and 39.2% post-menopausal). Excess weight was more prevalent in the peri-menopausal group than in the pre-menopausal group (P=0.012). Symptoms such as decreased libido, vaginal dryness, urinary incontinence, muscle and joint pain, lipid alterations, and hot flashes were more prevalent in the absolute values of post-menopausal women. Women in the peri-menopausal period had a higher prevalence, in absolute values, of stress, irritability, headache, skin problems, lack of concentration/memory, sleep disorders, and fatigue. According to the MRS, there was no difference in the psychosocial domain (P=0.265) but somato-vegetative and urogenital symptoms are more intense in peri-menopausal and post-menopausal women when compared to pre-menopausal women (P<0.001). The global score on the questionnaire also demonstrated a lower intensity in the pre-menopausal group's symptoms (P=0.001). Conclusions: This study demonstrated a higher prevalence and severity of symptoms in peri-menopausal and post-menopausal women, which may impair the quality of life of these women at this stage of life.

Efficacy of Hormonal and Nonhormonal Approaches to Vaginal Atrophy and Sexual Dysfunctions in Postmenopausal Women: A Systematic Review / Eficácia das abordagens hormonais e não hormonais para atrofia vaginal e disfunções sexuais em mulheres na pós-menopausa: Uma revisão sistemática

Abstract Objective To evaluate the efficacy of the hormonal and nonhormonal approaches to symptoms of sexual dysfunction and vaginal atrophy in postmenopausal women. Data Sources We conducted a search on the PubMed, Embase, Scopus, Web of Science, SciELO, the Cochrane Central Register of Controlled Trials (CENTRAL), and Cumulative Index to Nursing and Allied Health Literature (CINAHL) databases, as well as on clinical trial databases. We analyzed studies published between 1996 and May 30, 2020. No language restrictions were applied. Selection of Studies We selected randomized clinical trials that evaluated the treatment of sexual dysfunction in postmenopausal women. Data Collection Three authors (ACAS, APFC, and JL) reviewed each article based on its title and abstract. Relevant data were subsequently taken from the full-text article. Any discrepancies during the review were resolved by consensus between all the listed authors. Data Synthesis A total of 55 studies were included in the systematic review. The approaches tested to treat sexual dysfunction were as follows: lubricants and moisturizers (18 studies); phytoestrogens (14 studies); dehydroepiandrosterone (DHEA; 8 studies); ospemifene (5 studies); vaginal testosterone (4 studies); pelvic floor muscle exercises (2 studies); oxytocin (2 studies); vaginal CO2 laser (2 studies); lidocaine (1 study); and vitamin E vaginal suppository (1 study). Conclusion We identified literature that lacks coherence in terms of the proposed treatments and selected outcome measures. Despite the great diversity in treatment modalities and outcome measures, the present systematic review can shed light on potential targets for the treatment, which is deemed necessary for sexual dysfunction, assuming that most randomized trials were evaluated with a low risk of bias according to the Cochrane Collaboration risk of bias tool. The present review is registered with the International Prospective Register of Systematic Reviews (PROSPERO; CRD42018100488).

Resumo Objetivo Avaliar a eficácia das abordagens hormonais e não hormonais para os sintomas de disfunção sexual e atrofia vaginal em mulheres na pós-menopausa. Fontes de Dados Pesquisamos as bases de dados PubMed, Embase, Scopus, Web of Science, SciELO, Cochrane Central Register of Controlled Trials (CENTRAL), e Cumulative Index to Nursing and Allied Health Literature (CINAHL), assim como bancos de dados de ensaios clínicos. Foram analisados estudos publicados entre 1996 e 30 de maio de 2020. Nenhuma restrição de idioma foi aplicada. Seleção dos Estudos Foram selecionados ensaios clínicos randomizados que avaliavam o tratamento das disfunções sexuais em mulheres na pós-menopausa. Coleta de Dados Três autores (ACAS, APFC e JL), revisaram cada artigo com base em seu título e resumo. Os dados relevantes foram posteriormente retirados do texto completo do artigo. Quaisquer discrepâncias durante a revisão foram resolvidas por consenso entre todos os autores listados. Síntese dos Dados Ao todo, 55 estudos foram incluídos na revisão sistemática. As abordagens testadas para tratar a disfunção sexual foram: lubrificantes e hidratantes (18 estudos); fitoestrogênios (14 estudos); deidroepiandrosterona (DHEA; 8 estudos); ospemifeno (5 estudos); testosterona vaginal (4 estudos); exercícios para os músculos do assoalho pélvico (2 estudos); oxitocina (2 estudos);laser de CO2 vaginal (2 estudos); lidocaína (1 estudo), e vitamina E vaginal (1 estudo). Conclusão Identificou-se falta de coerência na literatura quanto aos tratamentos propostos e medidas de resultados selecionadas. Apesar da grande diversidade de modalidades de tratamento e medidas de resultados, esta revisão sistemática pode lançar luz sobre alvos potenciais para o tratamento, que é considerado necessário para a disfunção sexual, assumindo que a maioria dos estudos randomizados foi avaliada com baixo risco de viés de acordo com a ferramenta de avaliação de risco de viés de Cochrane Collaboration. Esta revisão tem cadastro no International Prospective Register of Systematic Reviews (PROSPERO; CRD42018100488).

Osteoporosis postmenopáusica: relevancia de la búsqueda estructurada de causas secundarias / A search for secondary causes of osteoporosis or low mineral density in postmenopausal women

BACKGROUND: A secondary cause can be found in up to one third of women with osteoporosis, potentially modifying their therapeutic approach. AIM: To determine the prevalence of secondary causes and risk factors for decreased bone mineral density (BMD) and osteoporosis. Material and Methods: We included postmenopausal women with a diagnosis of osteoporosis or low BMD who consulted for the first time in an endocrinology clinic between October 2018 and March 2020. A complete medical history, physical examination and a standardized laboratory assessment to identify secondary causes were performed. RESULTS: During the study period, 114 women were evaluated, 30 of them with low BMD and 84 with osteoporosis. After obtaining a medical history and a structured laboratory screening, at least one secondary cause was found in 50% of patients with osteoporosis and in 67% of those with low BMD. Most patients with no identified secondary cause had at least one risk factor for fragility fractures. Conclusions: A structured evaluation that includes medical history and standardized laboratory study in postmenopausal women with osteoporosis or low BMD, is a valuable tool to identify secondary causes of osteoporosis.

Prevalence of osteoporosis and related factors in postmenopausal women aged 40 and above in China / 中华流行病学杂志

Objective: To understand the prevalence of osteoporosis and related factors in postmenopausal women aged ≥40 years in China and provide scientific evidence for osteoporosis prevention and control. Methods: Data of this study were from the 2018 China Osteoporosis Epidemiological Survey, covering 44 counties (districts) in 11 provinces in China. Related variables were collected by questionnaire survey and physical measurement, and the BMD of lumbar spine and proximal femur was measured by dual-energy X-ray absorption method. The prevalence of osteoporosis and its 95%CI in postmenopausal women aged ≥40 years were estimated with complex sampling weights. Results: A total of 5 728 postmenopausal women aged ≥40 years were included in the analysis and the prevalence of osteoporosis was 32.5% (95%CI: 30.3%-34.7%). The prevalence of osteoporosis in postmenopausal women aged 40-49 years, 50-59 years, 60-69 years, 70-79 years, and ≥80 years were 16.0% (95%CI:4.5%-27.5%), 18.4% (95%CI:15.9%-20.8%), 37.5% (95%CI:34.5%-40.4%), 52.9% (95%CI: 47.5%-58.3%), and 68.0% (95%CI:55.9%-80.1%) respectively. The prevalence of osteoporosis was higher (P<0.001) in those with education level of primary school or below (47.2%, 95%CI: 43.0%-51.3%) and in those with individual annual income less than 10 000 Yuan, (40.3%, 95%CI: 36.9%-43.7%). The prevalence of osteoporosis was 35.1% in rural areas (95%CI: 32.0%-38.1%), which was higher than that in urban areas (P<0.001). The prevalence of osteoporosis in low weight, normal weight, overweight and obese groups were 69.9% (95%CI: 59.0%-80.8%), 42.2% (95%CI: 38.7%-45.7%), 24.2% (95%CI: 21.3%-27.1%) and 14.6% (95%CI: 11.1%-18.0%), respectively. The prevalence of osteoporosis in those with menstrual maintenance years ≤30 years and in those with menopause years ≥11 years were 46.1% (95%CI:40.8%-51.3%) and 48.2% (95%CI:45.0%-51.3%), respectively. Multivariate logistic analysis showed that age ≥60 years, education level of primary school or below, annual household income per capita less than 10 000 Yuan, low body weight, menstrual maintenance years ≤30 years, menopause years ≥11 years were risk factors of osteoporosis in postmenopausal women in China. Conclusions: The prevalence of osteoporosis was high in postmenopausal women aged ≥40 years in China, and there were differences in osteoporosis prevalence among different socioeconomic groups. Effective interventions should be taken for the prevention and control of osteoporosis in key groups in the future.

Evaluation of diagnostic efficacy of artery elasticity and endothelial function indexes for coronary heart disease with blood stasis syndrome in postmenopausal women by Logistic regression combined with ROC curve model / 中国中药杂志

The present study explored the correlation of coronary heart disease(CHD) with blood stasis syndrome in postmenopausal women with artery elasticity and endothelial function indexes and evaluated the diagnostic efficacy of the prediction model via logistic regression and receiver operating characteristic(ROC) curve model. A retrospective comparison was made between 366 postmenopausal CHD patients from August 1, 2020, to September 30, 2021, in the Department of Cardiology of Integrated Traditional Chinese and Western Medicine of China-Japan Friendship Hospital, who were divided into the blood stasis syndrome group(n=196) and the non-blood stasis syndrome group(n=170). General clinical characteristics of the two groups were compared. Multivariate logistic regression analysis was used to probe the correlation of CHD with blood stasis syndrome in postmenopausal women with brachial-ankle pulse wave velocity(baPWV), ankle-brachial index(ABI), and flow-mediated dilatation(FMD), and the ROC curve was drawn to evaluate the diagnostic efficiency of the prediction model. Multivariate logistic regression analysis showed that the correlation coefficients of CHD with blood stasis syndrome in postmenopausal women with baPWV, ABI, and FMD were 1.123, 0.109, and 0.719, respectively(P=0.004, P=0.005, P<0.001),and the regression equation for predicting probability P was P=1/[1+e~(-(3.131+0.116×baPWV-2.217×ABI-0.330×FMD))]. ROC curve analysis suggested that in the context of baPWV≥19.19 m·s~(-1) or ABI≤1.22 or FMD≤9.7%, it was of great significance to predict the diagnosis of CHD with blood stasis syndrome in postmenopausal women. The AUC of baPWV, ABI, FMD, and prediction probability P was 0.763, 0.607, 0.705, and 0.836, respectively. The AUC of prediction probability P was higher than that of each index alone(P<0.001), and the sensitivity and specificity were 0.888 and 0.647, respectively. The results demonstrate that baPWV, ABI, and FMD are independently correlated with CHD with blood stasis syndrome in postmenopausal women, and show certain independent predictive abilities(P<0.05). The combined evaluation of the three possesses the best diagnostic efficiency.

Análise comparativa do reparo alveolar em camundongos fêmeas C57BL/6 em falência ovariana provocada pela senescência, induzida quimicamente ou por ovariectomia / Comparative analysis of alveolar repair in female C57BL/6 mice in ovarian failure caused by senescence, chemically induced or by ovariectomy

Diferentes modelos animais são utilizados para investigação do metabolismo e reparo ósseo pós-menopausa, resultando em diferentes impactos na produção dos hormônios ovarianos. O presente trabalho analisou e comparou o processo de reparo ósseo intramembranoso após a extração dentária de camundongos fêmeas em condição de estropausa fisiológica, induzida quimicamente e por ovariectomia, bem como os níveis séricos de marcadores ósseos e de estresse oxidativo. Foram utilizados 46 camundongos fêmeas C57BL/6J, com idades iniciais entre 4, 6 e 18 meses, pesando cerca de 25 - 28 gramas, as quais constituíram cinco grupos: CT ­ animas que não receberam nenhum tratamento (6 meses), SHAM ­ ovariectomia fictícia (4 meses), OVX ­ submetidas a ovariectomia (4 meses), VCD ­ medicadas com diepóxido 4-vinilciclohexeno (VCD) (4 meses) na dose de 160 mg/Kg/dia, via IP por 20 dias consecutivos e ID ­ em período pós-estropausa fisiológica (18 meses). Constatada a condição de diestro persistente nos animais de todos os grupos, os mesmos foram submetidos a exodontia do incisivo superior direito para posterior eutanásia nos períodos de 7 e 21 dias, quando as maxilas contendo os alvéolos foram removidas para obtenção de lâminas histológicas coradas com HE, Tricrômico de Goldner e para a técnica imuno-histoquímica para as proteínas RANKL e OPG. O sangue também foi coletado para as análises bioquímicas para dosagem dos níveis de cálcio, fosfato, fosfatase alcalina (FAL) e TRAP total, bem como para capacidade antioxidante total e TBARs. A análise histopatológica revelou que todos os alvéolos repararam aos 21 dias; porém, com diferenças nos aspectos histomorfológicos entre os grupos. Os grupos Controle e SHAM apresentaram trabeculado ósseo regular e em remodelação com moderada marcação para RANKL e OPG. Já os grupos OVX e Idosa apresentaram trabéculas ósseas irregulares e delgadas desde o dia 7, as quais mostravam-se pouco celularizadas aos 21 dias. O grupo VCD exibiu neoformação mais discreta aos 7 dias, porém, com tecido ósseo em franca remodelação aos 21 dias. Apesar destas diferenças, notou-se moderada marcação para RANKL e OPG nestes grupos, com destaque para o infiltrado inflamatório mononuclear. Os níveis séricos de TRAP e FAL estavam significativamente aumentados no grupo Idosa aos 21 dias em comparação com os demais grupos, bem como a capacidade antioxidante total. Não foram observadas diferenças estatísticas nos níveis de cálcio e fosfato, e em TBARs. A partir dos resultados obtidos pode-se concluir que os diferentes modelos de falência ovariana, fisiológica ou precoce, interferem de modo distinto no reparo ósseo alveolar pós-exodontia, bem como nos níveis séricos nos marcadores de remodelação óssea e de capacidade antioxidante, devendo ser considerados no momento da seleção do modelo e correlação com os achados clínicos em humanos(AU)

Different animal models are used to investigate postmenopausal metabolism and bone repair, resulting in different impacts on ovarian hormone production. The present work analyzed and compared the intramembranous bone repair process after tooth extraction in female mice in physiological stropause, chemically induced and by ovariectomy, as well as the serum levels of bone markers and oxidative stress. Fortysix C57BL/6J female mice were used, with initial ages between 4, 6 and 18 months, weighing about 25 - 28 grams, which constituted five groups: CT - animals that did not receive any treatment (6 months), SHAM - ovariectomy dummy (4 months), OVX ­ submitted to ovariectomy (4 months), VCD ­ medicated with 4-vinylcyclohexene diepoxide (VCD) (4 months) at a dose of 160 mg/kg/day, via IP for 20 consecutive days and ID ­ in the physiological post-estropause period (18 months). Once the condition of persistent diestrus was observed in the animals of all groups, they were submitted to extraction of the upper right incisor for later euthanasia in the periods of 7 and 21 days, when the jaws containing the alveoli were removed to obtain histological slides stained with HE, Goldner trichrome and for the immunohistochemical technique for RANKL and OPG proteins. Blood was also collected for biochemical analysis to measure calcium, phosphate, alkaline phosphatase (FAL) and total TRAP levels, as well as for total antioxidant capacity and TBARs. Histopathological analysis revealed that all alveoli repaired at 21 days; however, with differences in histomorphological aspects between the groups. The Control and SHAM groups showed regular bone trabeculation and remodeling with moderate staining for RANKL and OPG. On the other hand, the OVX and Elderly groups presented irregular and thin bone trabeculae from day 7, which showed little cellularization at day 21. The VCD group exhibited more discrete neoformation at 7 days, however, with bone tissue in clear remodeling at 21 days. Despite these differences, moderate staining for RANKL and OPG was observed in these groups, with emphasis on the mononuclear inflammatory infiltrate. The serum levels of TRAP and FAL were significantly increased in the Elderly group at 21 days compared to the other groups, as well as the total antioxidant capacity. No statistical differences were observed in calcium and phosphate levels, and in TBARs. From the results obtained, it can be concluded that the different models of ovarian failure, physiological or early, interfere differently in post-extraction alveolar bone repair, as well as in the serum levels of bone remodeling and antioxidant capacity markers, and should be considered at the time of model selection and correlation with clinical findings in humans(AU)

Role of caveolin-eNOS platform and mitochondrial ATP-sensitive potassium channel in abrogated cardioprotective effect of ischemic preconditioning in postmenopausal women

Abstract Caveolin, the protein of the caveolar membrane, interacts and binds with endothelial nitric oxide synthase (eNOS), forming a caveolin-eNOS complex leading to suppression of the eNOS activity. Caveolin, therefore, maintains eNOS in the inactivated state leading to reduced nitric oxide (NO) production. Ischemic preconditioning disrupts the caveolin-eNOS complex leading to activation of the eNOS and thus results in cardioprotection. During ischemic preconditioning, NO produces cardioprotection by the opening of the KATP channel, and the caveolin forms a suitable signalling platform facilitating the interaction of NO with the KATP channel. Estrogen deficiency has been reported to upregulate caveolin-1 expression. The article aims to review the various mechanisms that placed the women at the risk of coronary artery diseases after postmenopausal estrogen deficiency and their role in the cardioprotective effect of ischemic preconditioning.