On the passage of an exogenous diamine oxidase inhibitor to the amniotic fluid.
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Amine Oxidase (Copper-Containing)↗
Biomedical subjects
G Samsioe
Publications and source records attributed to G Samsioe.
Separation of urinary constituents of low molecular weight on Sephadex G 10.
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Amino Acids↗
Prevention of postmenopausal osteoporosis with oestrogen replacement therapy and associated compounds: update on clinical trials since 1995.
Hormonal replacement therapy (HRT) is generally regarded as first choice for pharmacological prevention of osteoporosis in women. We reviewed recent studies of HRT regimens and selective oestrogen receptor modulators (SERMs), including controlled trials of at least one-year duration published since 1995 until February 2000 providing data on bone mineral density (BMD) or fractures. Natural and synthetic oestrogens exert a continuum of positive effects on BMD in a dose-dependent, though non-proportional, fashion independent of age and mode of administration. Bone loss may be largely prevented by 25 microg transdermal patch oestradiol, 0.3 mg conjugated equine or 0.3 mg esterified oestrogens. Progestogens neither attenuate nor augment the effect of oestrogens; sole use of tibolone prevents bone loss. Both the SERMs, tamoxifen and raloxifene, slightly increase BMD. There are no adequately powered fracture trials for any HRT regimen. Raloxifene 60 mg daily decreases the relative risk of vertebral fractures by at least 30%, as demonstrated by one 3-year fracture study of osteoporotic women. In conclusion, the recommendation to use oestrogen for postmenopausal osteoporosis, given both the lack of fracture trials and the rare trials on long-term use of HRT in (late) postmenopausal women, is not well supported. Fracture trials could overcome shortcomings of the current level of evidence.
Aged↗
Lipid oxidation and the road to arteriosclerosis.
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Arteriosclerosis↗
Important factors for use of hormone replacement therapy: a population-based study of Swedish women. The Women's Health in Lund Area (WHILA) Study.
OBJECTIVE: The aim of this study was to delineate the use of hormone replacement therapy (HRT) among women who were born between December 2, 1935, and December 1, 1945, and living in the Lund area of southern Sweden and to analyze factors that contribute to the acceptance and continuation of HRT. METHODS: All women received a generic questionnaire pertaining to demographic background, lifestyle, health behavior, and climacteric symptoms and underwent a personal interview. An interim analysis was carried out on 3,900 women. We mailed a hormone questionnaire to the women who were using HRT (n = 1,875). This hormone questionnaire covered, for example, menopausal status, complaints, and alterations in and efficacy of HRT use, as well as the reasons for discontinuing HRT use. RESULTS: A total of 1,415 (76%) women answered the hormone questionnaire. Forty-eight percent were HRT ever users, and 32% were current users. Mean duration of HRT use was 47 months. The most common incentives for HRT use were alleviation of menopausal symptoms (72%) and prevention of bone loss (50%) and/or cardiovascular disease (31%). Forty-seven percent of HRT users reported that they had changed regimens at least once. HRT users had higher education, full-time work, and a higher consumption of alcohol but less consumption of cigarettes. They reported higher frequencies of climacteric symptoms, past histories of premenstrual syndrome, use of oral contraceptives, and hysterectomy. They also had a higher consumption of healthcare resources. A total of 177 women withdrew from therapy. The most common reasons for discontinuation of HRT were weight gain, anxiety of cancer, bleeding, breast tenderness, and emotional problems. Compared with current users, past users had less positive as well as fewer negative effects of HRT. Several variables contributed to compliance, including education, full-time work, regular exercise, low frequency of persistent climacteric symptoms, and alteration of regimens. CONCLUSION: Education, working conditions, lifestyle, interest in prevention, and severity of the climacteric symptoms are determinants for both acceptance of and compliance with HRT.
Cardiovascular Diseases↗
Treatment with a GnRH analogue: effects on hemostatic risk factors for thrombo-embolic disease.
OBJECTIVE: Steroid hormones, especially estrogens, are known to affect hemostatic risk factors for thromboembolism, cardiovascular disease, and stroke. We examined these risk factors during depression of the serum estradiol concentration by a GnRH analogue. DESIGN: Patients were treated with a GnRH analogue, goserelin (Zoladex), 3.6 mg/inj monthly, for a period of 6 months. Blood samples were collected during and after treatment and in a control group. In ten patients a blood sample was also drawn before treatment. Measurements were made of serum estradiol, and the plasma concentrations of tissue-type plasminogen activator (t-PA) antigen, plasminogen activator inhibitor (PAI-1) antigen, antithrombin III (AT III) and protein C activity, factor VII (FVII) antigen, and fibrinogen. SETTING: Outpatient clinics at the Departments of Obstetrics and Gynecology at two university hospitals in southern Sweden. PARTICIPANTS: Twenty-seven women with endometriosis were consecutively included. A control group comprised 20 women with normal menstrual cycles. MAIN OUTCOME MEASURES: The concentrations of the hemostatic components during depression of the serum estradiol concentrations, as compared to those during normal ovulatory cycles. RESULTS: Serum estradiol concentrations during treatment were comparable to those of postmenopausal women (mean, 23.2 pmol/L), and both AT III and protein C activity were significantly increased (P < .005 and P < .02, respectively). As compared to controls, plasma concentrations of PAI-1 and t-PA of patients were significantly higher both during and after treatment. In the subgroup also studied prior to treatment, there were no differences in hemostatic components, when comparing pretreatment and posttreatment values. CONCLUSIONS: Treatment with this type of GnRH analogue for 6 months is safe with regard to its effect on hemostatic risk factors. The similar responses of t-PA and its inhibitor, PAI-1, to alterations in estrogen levels as well as inflammatory reactivity presumably constitute a balance mechanism preserving fibrinolytic defenses.
Adult↗
Hormone replacement therapy: aspects of bleeding problems and compliance.
Mitigation of vasomotor symptoms and urogenital problems, along with reductions in osteoporosis and cardiovascular disease, provides the rationale for using hormone replacement therapy (HRT), and the duration of use. However, user surveys have indicated poor compliance with HRT, and that means user time may be less than 12 months, a period unlikely to influence metabolic disorders. The main reasons for discontinuing HRT are unacceptable bleeding pattern and fear of cancer. There is solid evidence that HRT does not increase gynecological, gastrointestinal, or other adenocarcinomas. In fact, the only remaining controversy relates to breast cancer. Since the media often underscore and strengthen "old wives' tales" about the menopause and HRT, access to correct, unbiased information is the key to combating the misconceptions about HRT. Information also helps women understand the nature of menstrual-like bleeding, and thus contributes to compliance. Unfortunately, existing formulations do not control the bleeding pattern in every women. Our understanding of spotting and breakthrough bleeding is still poor. Older data, which suggested routine endometrial histology to find the cause and select treatment of vaginal bleeds, have been contradicted, rendering endometrial biopsy less useful in decision making; endometrial ultrasonography seems to be of more value for endometrial surveillance in HRT. Recent advances in understanding the nature and function of growth factors in uterine tissues help to unravel an array of events of importance for explaining the bleeding sometimes encountered during continuous combined therapy. The pharmaceutical industry should be challenged to work closely with scientists and regulating agencies. Doing so will help to advance our knowledge and therapeutic modalities, which will help us to combat the chief cause of poor compliance to, and discontinuation of, a very important potential contributor to maintaining quality of life of elderly women.
Aged↗
Ethical issues in obstetrics.
Ethical issues in modern obstetrics commonly relate to a conflict between the rights and possibilities of the fetus versus those of the mother. After delivery, when the fetus by definition is a child, all legal rights are granted to this new individual. Whether any rights should be given or offered to the fetus is dependent on the prevailing situation. General rules are difficult to give due to the rapid evolution of clinical medicine-too firm rules given today could well be an obstacle in the near future. All cultures have well-established opinions regarding issues related to pregnancy and childbirth. Cultural and religious dogmas are often in conflict with modern medical technology and financial issues. In several modern societies, state laws regulate legal abortion and other aspects of termination of pregnancy. Current laws often determine not only decisions but also the minds of doctors, as well as of patients. Advanced medical technology has yielded a possibility of selective feticide. Again our experience with this new technique is limited, and several issues of ethical importance may arise from the use of such techniques. The indications for a selective feticide are dependent upon the benefits and risks of the procedure itself, and also on the selection process of what fetus should be aborted. Clearly, no definitive rules could be given at this stage of development. The advice given to the woman by her doctor is of critical importance for the outcome of the given pregnancy, be it selective feticide or legal abortion. However, the prevailing social welfare system and the support a woman could be given by her society are also factors. Should she give birth to a child with an inborn error of metabolism, or some other chronic illness? Drug abuse, including alcohol and, indeed, also tobacco, constitutes a special problem. In Sweden, drug-addicted pregnant women are hospitalized during their last trimester. This policy results in a drug-free last trimester and a reduction of afflicted newborns. Should a similar approach also be enforced when dealing with abuse of alcohol and tobacco during pregnancy? The improvement of in vitro fertilization techniques has introduced a novel concept, the surrogate mother. In some countries, this is forbidden by law, in others, it is an accepted medical practice, but several medico-legal as well as ethical issues warrant further clarification. What are the legal rights of the surrogate mother? Should there be an age limit for surrogate mothers? Who is responsible for problems in the pregnancy itself? In cases of male infertility, ethical issues may arise. Should the child have a legal right to learn the name of the biological father? Should there be a limit for the use of donor sperm in respect to number of fertility attempts, as well as potential female patients who may use the same sperm donor?
Abortion, Induced↗
Medical and surgical strategies for treating urogynecological disorders.
Symptoms and signs of the urogenital estrogen deficiency syndrome occur relatively late in a women's life when endogenous estrogen levels are well below those required to stimulate endometrial growth. At age 60 and above symptoms are common and progress with advancing age. The first and most common complaint is vaginal dryness, but symptoms of lost control of micturition as well as urge incontinence are also frequent. Recurrent infections of the lower urinary tract are common, as well as dyspareunia and a sensation of burning and itching. One third of women above age 60 suffer from urogenital estrogen deficiency syndromes, a figure that rises to two thirds at the age of 75. With a rapid growth of the elderly female population, these symptoms are an increasing burden to the individual as well as to any given health care system. Several clinical trials have repeatedly demonstrated the efficacy in alleviating these symptoms of low daily estrogen doses as exemplified by 8 micrograms/day of vaginally administered estradiol. For reasons not completely understood, the urogenital tissues respond to this low estrogen level but the endometrium does not. Hence, estrogen therapy aiming at mitigating urogenital deficiency symptoms could be given without a progestogen. No side effects have been described for vaginal preparations, and neither absolute nor relative contraindications exist. No protection is offered against cardiovascular disease or osteoporosis, though. In 1991, vaginal low-dose estrogens were declared OTC preparations in Sweden. The costs for the society for this program can be limited to the costs of medication only, for medical monitoring is not compulsory. The clinical efficiency is remarkable, and urogenital symptoms are almost abolished in elderly women receiving this type of treatment, which is practically devoid of side effects.
Adult↗
Intrauterine or oral administration of levonorgestrel in combination with estradiol to perimenopausal women--effects on lipid metabolism during 12 months of treatment.
OBJECTIVE: Limited data concerning serum lipids and lipoproteins are available on the effect of HRT in perimenopausal women, who commonly have marked bleeding disturbances and may have severe climacteric symptoms. Almost all previously published data have utilized a simplified form of lipoprotein analysis, which includes an estimation and not a determination of LDL cholesterol. To delineate the role of locally administered progestogen, perimenopausal women were studied for a year. PATIENTS AND METHODS: 40 perimenopausal women with climacteric complaints. The continuous release of low-dose levonorgestrel from an intrauterine device was used as progestogen co-medication to estradiol in a new type of continuous combined hormone replacement therapy. Women were randomized to either cyclical treatment with 2 mg of oral estradiol valerate in combination with 250 micrograms of levonorgestrel for the last ten days (Cyclo Progynova) or continuously with 2 mg estradiol valerate orally in combination with a 20 micrograms per 24 hour levonorgestrel releasing intrauterine device. RESULTS: Reduced HDL cholesterol was initially recorded in both treatment arms and disappeared after 1 year of treatment. Triglycerides were reduced in the orally treated group, but not in the device group. No changes in LDL cholesterol were noted. CONCLUSIONS: The findings suggest that continuous combined HRT with intrauterine release of 20 micrograms levonorgestrel per 24 hours in perimenopausal women is neutral as far as lipid metabolism is concerned, since no alterations compared with pretreatment values could be noted after 12 months of treatment. Less marked lipid changes were obtained in perimenopausal women as compared with data on postmenopausal women. Differences in methodology may partly account for this.
Administration, Oral↗