Marianna Cannoletta

Relation of folates, vitamin B12 and homocysteine to vertebral bone mineral density change in postmenopausal women. A five-year longitudinal evaluation

Elevation of homocysteine is associated with an increased risk for bone fractures. Whether the risk is due to homocysteine or to the reduced levels of cofactors necessary for its metabolisation, such as folates or vitamin B12, is not completely clear. In this study we wanted to determine whether in postmenopausal women, levels of folates, homocysteine or vitamin B12 are predictive of the rate of vertebral bone mineral density (BMD) change. The study was conducted at the centre for the menopause of our university hospital. Between September 2001 and March 2002, 161 healthy postmenopausal women volunteered for a cross-sectional evaluation of BMD and levels of serum folates, homocysteine and vitamin B12. Women were recalled for a second evaluation of vertebral BMD after about 5 years. Women having used anti-resorptive therapies for more than 1 year were excluded. The analysis was possible in 117 postmenopausal women. The annual rate of vertebral BMD change was independently related to levels of folates (coefficient of regression (CR): 2.040; 95%CI: 0.483, 3.596; p=0.011), and initial BMD values (CR: -0.060; 95%CI: -0.117, -0.003; p=0.040). No significant relation was found between the change of vertebral BMD and homocysteine or vitamin B12. BMD values at the first (r=0.225; p=0.016) and the second (r=0.206; p=0.027) evaluation were related to levels of folates, but not of homocysteine or of vitamin B12. These data suggest an important role for folates deficiency in the vertebral BMD decline of postmenopausal women.

Prevalence of menstrual pain in young women: what is dysmenorrhea?

Objectives This study aimed to determine the frequency of dysmenorrhea, as identified by different definitions, in a population of young women, and to investigate factors associated with this complaint. Materials and methods A final group of 408 young women completed a self-assessment questionnaire. This was a cross-sectional analytical study. Results Menstrual pain was reported by 84.1% of women, with 43.1% reporting that pain occurred during every period, and 41% reporting that pain occurred during some periods. Women with menstrual pain had an earlier menarche (P = 0.0002) and a longer menstrual flow (P = 0.006), and this group was characterized as having a higher prevalence of smokers (P = 0.031) and a lower prevalence of hormonal contraception users (P = 0.015). Pain intensity was correlated (r = 0.302, P < 0.0001) positively with menstrual flow length (CR = 0.336), history of abortions (CR = 3.640), and gynecological pathologies (CR = 0.948), and negatively with age at menarche (CR = −0.225), use of hormonal contraception (CR = −0.787), and history of gynecological surgery (CR = −2.115). Considering the parameters of menstrual pain, a need for medication, and inability to function normally (absenteeism from study or social activities) alone or together, the prevalence of dysmenorrhea is 84.1% when considering only menstrual pain, 55.2% when considering the association between menstrual pain and need for medication, 31.9% when considering the association between menstrual pain and absenteeism, and 25.3% when considering the association between menstrual pain, need for medication, and absenteeism (P < 0.0001). The probability of having more severe dysmenorrhea is directly related to pain intensity as measured by a visual analog scale, but does not coincide with it. Conclusion Menstrual pain is a very common problem, but the need for medication and the inability to function normally occurs less frequently. Nevertheless, at least one in four women experiences distressing menstrual pain characterized by a need for medication and absenteeism from study or social activities.

Increased cortisol level: a possible link between climacteric symptoms and cardiovascular risk factors.

Objective:Vasomotor symptoms may increase the risk for cardiovascular diseases through still elusive mechanisms. Increased cortisol release may favor atherosclerosis. In this study, we tested whether vasomotor and psychological symptoms are associated with an increase in cortisol levels. Methods:A cross-sectional investigation on women in early menopause enrolled consecutively between January and June 2009 was conducted. This study was set at a menopause outpatient service at University Hospital. Participants included 85 healthy women who were 6 months to 5 years postmenopause. The 24-hour urinary cortisol level and Greene Climacteric Scale scores were evaluated. Anthropometric parameters and fasting blood samples for the determination of high-density lipoprotein (HDL) cholesterol, total cholesterol, triglycerides, glucose, and insulin levels were measured. Body mass index, waist-to-hip ratio, and homeostatic model assessment of insulin resistance were calculated. The relation between Greene Climacteric Scale scores and 24-hour urinary cortisol level and between 24-hour urinary cortisol level and lipid levels or insulin resistance was determined. Results:The Greene Climacteric Scale score for climacteric symptoms (coefficient of regression [CR], 1.343; 95% CI, 0.441-2.246) and body mass index (CR, 4.469; 95% CI, 1.259-7.678) explained 32.5% and 10.3%, respectively, of the variance in 24-hour urinary cortisol level (r = 0.428; P = 0.0003). Twenty-four-hour urinary cortisol level was inversely related to HDL-cholesterol level (CR, −0.065; 95% CI, −0.114 to −0.017; r = 0.283; P = 0.009) and was related to waist girth (CR, 0.685; 95% CI, 0.306-1.063) and homeostatic model assessment of insulin resistance (CR, 0.097; 95% CI, 0.032-0.162; r = 0.510; P = 0.0001). Conclusions:In early postmenopausal women, the Greene Climacteric Scale score is associated with increased 24-hour urinary cortisol level. Increased cortisol level is associated with known risk factors for cardiovascular disease, such as insulin resistance and decreased HDL-cholesterol level.

Menopausal symptoms and risk factors for cardiovascular disease in postmenopause

ABSTRACT Objectives Conflicting evidence indicates an increased risk for cardiovascular disease in postmenopausal women suffering from hot flushes. In this study, we tested whether, beyond hot flushes, menopausal symptoms are associated with biochemical and biophysical risk factors for cardiovascular disease. Methods Retrospective cross-sectional analysis on 951 women in surgical or physiological postmenopause, recruited at the menopause outpatient service of our university hospital between April 2002 and December 2009. The Greene Climacteric Scale and its subscales for anxiety, depression, somatic symptoms, vasomotor symptoms and sexuality were used to evaluate menopausal complaints. Blood pressure, fasting glucose and lipids levels were evaluated as risk factors for cardiovascular disease. Anthropometric parameters and those derived by remote and reproductive medical history were used as possible confounders. All data were anonymously retrieved from an electronic database. Results By multiple regression analysis, high density lipoprotein (HDL) cholesterol was inversely related to body mass index, the Greene Climacteric Scale score and years since menopause (R = 0.390; p = 0.0001). The total cholesterol/HDL cholesterol ratio was positively related to waist circumference and the Greene Climacteric Scale score (R = 0.356; p = 0.0001). Triglycerides (R = 0.353; p = 0.0001) and triglyceride/HDL cholesterol (R = 0.425; p = 0.0001) were positively related to waist circumference, the Greene Climacteric Scale score and the Greene vasomotor subscore. Glucose was positively related to waist circumference, years since menopause and the Greene Climacteric Scale score (R = 0.390; p = 0.0001). Blood pressure was not related to menopausal symptoms. The 10-year risk for cardiovascular disease calculated by the Framingham formula was related independently and directly to body mass index and the Greene Climacteric Scale score (R = 0.183; p = 0.0001). Conclusions Menopausal symptoms evaluated by a validated climacteric scale are associated with a worsening of biochemical risk factors for atherosclerosis and cardiovascular disease.

Relation between oxidative stress and climacteric symptoms in early postmenopausal women

Abstract Objectives To evaluate the relation between climacteric symptoms or other risk factors for cardiovascular disease and oxidative status of postmenopausal women. Methods Cross-sectional investigation performed at the outpatient service for the menopause at the University Hospital, on 50 apparently healthy women in physiological postmenopause. The whole-blood free oxygen radical test (FORT), free oxygen radical defence (FORD), age, months since menopause, weight, body mass index, waist circumference, waist-to-hip ratio, estradiol, lipids, glucose, insulin, insulin resistance (glucose/insulin and HOMA-IR), and fibrinogen were evaluated. The Greene Climacteric Scale with its subscales was used to evaluate climacteric symptoms. The pulsatility index, an index of downstream blood flow resistance, was determined for both the internal carotid artery and the brachial artery. Results The waist-to-hip ratio (r = 0.540; p = 0.0001), estradiol (r = 0.548; p = 0.0004) and waist circumference (r = 0.345; p = 0.02) were independently related to blood FORT. The score in the Greene vasomotor subscale was the only parameter independently related to blood FORD (r = 0.554; p = 0.0001). FORT was not related to the artery pulsatility index, while FORD was negatively related to the pulsatility index of both the internal carotid (r = 0.549; p = 0.0001) and the brachial (r = 0.484; p = 0.0001) arteries. Discussion In postmenopausal women, abdominal adiposity and hypoestrogenism increase oxidative stress. Climacteric symptoms, particularly vasomotor symptoms, markedly reduce antioxidant defences. Lower antioxidant defences are associated with higher resistance to blood flow in the great arteries. In women early after the menopause, visceral fat, hypoestrogenism and climacteric symptoms may increase the risk for cardiovascular disease.

Modification of blood pressure in postmenopausal women: role of hormone replacement therapy

The rate of hypertension increases after menopause. Whether estrogen and progesterone deficiency associated with menopause play a role in determining a worst blood pressure (BP) control is still controversial. Also, studies dealing with the administration of estrogens or hormone therapy (HT) have reported conflicting evidence. In general it seems that, despite some negative data on subgroups of later postmenopausal women obtained with oral estrogens, in particular conjugated equine estrogens (CEE), most of the data indicate neutral or beneficial effects of estrogen or HT administration on BP control of both normotensive and hypertensive women. Data obtained with ambulatory BP monitoring and with transdermal estrogens are more convincing and concordant in defining positive effect on BP control of both normotensive and hypertensive postmenopausal women. Overall progestin adjunct does not hamper the effect of estrogens. Among progestins, drospirenone, a spironolactone-derived molecule, appears to be the molecule with the best antihypertensive properties.

Intermenstrual Pelvic Pain, Quality of Life and Mood

Background/Aims: To investigate the independent importance of different types of pelvic pain on quality of life and depressive symptoms. Methods: A cross-sectional study was performed on patients with pelvic pain. A 10-cm visual-analogue scale (VAS) was used to investigate intensity of intermenstrual pelvic pain, dysmenorrhea or deep dyspareunia. The SF-36 form and the Zung Self-Rating Scale for Depression (SDS) were used to investigate quality of life and depressive symptoms, respectively. Results: The final study group consisted of 248 patients, 175/248 (70.6%) with intermenstrual pelvic pain, 46/248 (18.5%) with dysmenorrhea and 27/248 (10.9%) with deep dyspareunia associated or not with dysmenorrhea. Mean VAS score for dysmenorrhea was higher than that for deep dyspareunia (p < 0.003) and intermenstrual pelvic pain (p < 0.0001). Women with intermenstrual pelvic pain had the worst SF-36 (p < 0.0001) and SDS (p < 0.002) scores. SF-36 was independently and inversely related to intermenstrual pelvic pain (CR -1.522; 95% CI -2.188 to -0.856; p < 0.0001), and less strongly to dysmenorrhea (CR -0.729; 95% CI -1.487 to 0.030; p = 0.06). Indeed, only the physical component summary of SF-36 was independently related to dysmenorrhea (CR -0.956; 95% CI -1.783 to -0.129; p = 0.024). The SDS score was independently related only to intermenstrual pelvic pain (CR 0.573; 95% CI 0.241-0.904; p = 0.0008). Conclusions: Patients with intermenstrual pelvic pain have the worst SF-36 and SDS scores. Intermenstrual pelvic pain seems to be more strongly associated with a reduced quality of life and depressive mood.

Intensity of menstrual pain and estimated angle of uterine flexion

To assess the impact of ultrasound‐estimated uterus position on the intensity of pelvic pain.

Efficacy safety and patient acceptability of the combined chlormadinone acetate-ethinylestradiol oral contraceptive.

Emergence and evolution of sophisticated chemical scaffolds of lignin polymers providing mechanical support for plant tissues, protecting the plant from pathogen invasion and damaging UV, and enhancing the hydrophobicity of the plant vasculature was of paramount importance to land plant evolution and their adaptation to the local ecosystems. Recruitment of enzymes from primary metabolism and their evolutional modification led to biosynthesis of H and G lignin in early terrestrial plants. Evolutional advantage of S lignin in adaptation to environment was a result of the selective structural alterations of the ring modification enzymes such as ferulate 5-hydroxylase and caffeic acid/5-hydroxyferulic acid O-methyltransferase at later stages of evolution. Lignification consequently transformed phenylpropanoid metabolism into a major sink for carbon in plants estimated to represent as much as 30% of the total biomass produced in the biosphere. Significant progress in plant genomics and in sequencing of the plant species that occupy important positions within the evolutionary history of plants along with functional studies of the families of lignin-specific genes in these plants allowed us in-depth understand how lignin biosynthesis was originated and evolved. Accumulated knoweledge also triggered new strategies for targeted re-programming lignin biosynthesis to improve agricultural and economic values of the crops as the great sugar sources for animal feed and biofuels production. Here we review the current knowledge about different aspects of lignin biosynthesis including its evolution, regulation and targeted modification to improve plant cell wall composition for animal health and for biofuel production.

Relation between body mass index and endothelium-dependent vasodilatation in healthy postmenopausal women

Objective To evaluate whether endothelium-dependent vasodilatation is related to anthropometric parameters in 105 healthy postmenopausal women 47–68 years of age. Methods Flow-dependent, endothelium-dependent vasodilatation was considered as the maximal dilatation following deflation of a cuff placed on the forearm and inflated to supra-systolic blood pressure values for 4 min. Endothelium-independent vasodilatation was considered as the maximal dilatation induced by sublingual nitroglycerine (400 μg). Results Among parameters such as height, weight, body mass index (BMI), waist, hip, waist/hip ratio, lipids, glucose or insulin, only BMI, an indirect index of adiposity, was independently and directly related to baseline brachial artery diameter (b = 0.042, r = 0.269, p = 0.0055) and flow-mediated endothelium-dependent vasodilatation either expressed as net (b = 0.034, r = 0.315, p = 0.001) or percentage (b = 0.376, r = 0.202, p = 0.039) change. Stratification for BMI categories showed that women with BMI < 22 kg/m2 had an endothelium-dependent vasodilatation, significantly lower than that of women with BMI ≥ 30 kg/m2 (0.711 ± 0.076 mm vs. 1.107 ± 0.141 mm; p = 0.0114). BMI was not related to endothelium-independent vasodilatation. Conclusions Present results show that, in healthy postmenopausal women, endothelium-dependent vasodilatation is related to BMI, arteries of slender women dilating less than those of their heavier counterparts. A low BMI does not appear to be beneficial for artery vasodilatation in healthy postmenopausal women.