Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0476089 (endometrial cancer)
 11,379 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

It is estimated that 10-15 million women use oral contraceptives in the U.S. The 2 types of pills available are combination products containing both an estrogen and progestin, and single entity products with only progestin. Although more side effects are associated with estrogen, combination pills are the preferred prescription. Most often side effects are mild and disappear after continued use or switching to another type of pill. Some of the side effects are nausea; weight gain; chloasma; cervical extrophia and leukorrhea; hypermenorrhea; spotting and breakthrough bleeding; galactorrhea and pituitary tumors; choreiform movement disorder; endometrial cancer; and, hepatic effects. Fetal exposure to exogenous estrogens and progestins has been reported to result in increased risk for the heart and neural tube defects. Teratogenic effects subsequent to discontinuation of OCs does not appear to be a risk. The beneficial side effects of oral contraceptives are that the incidence of menorrhagia, benign breast neoplasm, dysmenorrhea, iron-deficiency anemia, premenstrual tension, acne, and ovarian cysts are lower in OC users. Thryoid diseases may be reduced by OCs.
 ...
PMID:Side effects of oral contraceptives. 50 75

The effectiveness of monophasic and multiphasic oral contraceptives (OCs) depends on their ability to suppress ovulation, change endometrial growth and ovum receptivity, and reduce cervical mucus receptivity to sperm. They are all more than 99% effective, but, depending on the type and dose of hormone components, they have different side effects. The estrogen component (ethinyl estradiol) of most new OCs is between 30 and 35 mcg, which reduces the risk of estrogen side effects, especially thromboembolism and hypertension. The Food and Drug Administration does not recommend use of an OC with an estrogen component for lactating mothers, while the American College of Obstetrics and Gynecology and the American Academy of Pediatrics believe it is fine. Estrogen may protect against coronary artery disease, yet the estrogen component of today's OCs is so low that the progestin component may cancels this beneficial effect. It also prevents breakthrough bleeding. The most frequently used progestins in OCs are norethindrone and norgestrel. They prevent ovum implantation, sperm penetration through the cervical mucus, and ovulation. Progestins, especially norgestrel, increase the risk of coronary artery disease. Other side effects include acne and weight gain. Progestin benefits are reduced menstrual blood loss, pain during menstruation, premenstrual tension, and endometrial cancer risk. The ideal estrogen-progestin balance depends on the individual, but the estrogen component should be between 30 and 35 mcg, and the progestin component should be the lowest possible dose to reduce metabolic side effects. If an OC user with a well stabilized cycle who takes another recently prescribed drug experiences unexpected breakthrough bleeding or spotting, this change may indicate a drug interaction. Absolute and/or possible contraindications of OC use are smoking after age 35, history of breast or endometrial cancer, liver disease or impaired liver function, cardiovascular risk factors, and diabetes mellitus.
 ...
PMID:Benefits and risks of oral contraceptive use. 143 13

Cyclic progestin therapy has been widely advocated as an adjunct to postmenopausal estrogen replacement therapy to reduce the risk of endometrial carcinoma. Acceptance of this approach, however, appears to have preceded detailed evaluation of possible adverse side effects of progestins that could result in patient noncompliance. We evaluated the nonmenstrual physical and psychological side effects of oral medroxyprogesterone acetate given in conjunction with transdermal estrogen in two groups of women with previous hysterectomy and oophorectomy. Twenty-four women with prospectively documented severe premenstrual syndrome (PMS) before surgery and 24 women with no such history of adverse premenstrual changes received transdermal estrogen 100 micrograms on days 1-25 and either oral medroxyprogesterone acetate 10 mg daily or an identical placebo (days 12-25) in a randomized, double-blind, cross-over design. Mood and physical symptoms were monitored prospectively, using daily self-ratings on the Daily Symptoms Checklist. The Beck Depression Inventory and Premenstrual Tension Self-Rating Scale were completed on day 24. At the study's completion, the patients were asked which treatment period they preferred. Paired comparisons did not reveal any significant differences, and preference for treatment was equally divided between medroxyprogesterone acetate and placebo. We conclude that addition of medroxyprogesterone acetate 10 mg/day for 14 days to cyclic transdermal estrogen therapy (days 1-25) produces no consistent adverse physical or psychological effects on women for one cycle of treatment, regardless of their PMS history.
 ...
PMID:A randomized, double-blind, placebo-controlled, cross-over trial to assess the side effects of medroxyprogesterone acetate in hormone replacement therapy. 182 50

The benefits of combined oral contraceptives are put into perspective, considering their effectiveness as a contraceptive, actual risks for breast, ovarian, endometrial and cervical cancer, and effects of reproductive and other body systems. Combined oral contraceptives are the best contraceptives available except for injectable progestogens, therefore they an reduce the risk of maternal mortality by at least 5 in nonsmoking western women, or over 100 in developing countries. No data are available on mortality risk of the presumed safer low-dose pills. Pills reduce ectopic pregnancy to virtually nil. They decrease the risk of endometrial cancer, and of ovarian cancer for up to 15 years after use. Although they protect against benign breast disease, both fibrocystic disease and fibroadenoma, which are risk factors for breast cancer, it is unsettled whether pills affect breast cancer incidence. Cervical cancer risk may be slightly higher. Functional ovarian cysts requiring surgery are cut about 10-fold; corpus luteum and follicular cysts are also reduced. Fibroids are decreased in proportion to duration of use. Pelvic inflammatory disease rates fall 50% during use. Chlamydial infections have not fallen in pill users, but it is not known whether sexual activity is a factor. Combined pills cut abnormal uterine bleeding by about half, reduce the incidence of iron deficiency anemia and of premenstrual tension. Seizures related to menses also are controlled. Some studies find a reduction in rheumatoid arthritis. Most of the cardiovascular complications of pills are thought to be dose related. Since today's pills contain approximately the same dose as a whole cycle of the original pills, it is expected that these risks will be greatly reduced, especially with better screening of candidates that is now the rule.
 ...
PMID:The benefits of combined oral contraceptives. 269 95

A case-control study was conducted among 150 woman suffered from endometrial cancer (EC) in Beijing from 1982.1.1-1985.12.31 and matched with two controls from the neighbourhood to explore the risk factors for EC. The data were analysed with X2 test and Linear Logistic Regression. Result of the study are listed. The risk factors directly related to EC might be obesity, nulliparity and low parity, early menarche, liver diseases. The risk factors indirectly related to EC might be irregular menstruation, premenstrual tension, dysfunctional uterine bleeding. The oral combined contraceptives showed a protective effect on EC. The results of the study support the EC etiology hypothesis of 'unopposed action of estrogen'.
 ...
PMID:[A case-control study of endometrial cancer in Beijing]. 280 53

The new generation of oral contraceptives (OCs) contains less than 50 mcg of estrogen compared to previous levels of 100-150 mcg, and as a result have fewer undesirable side effects. In addition, it appears that the newer OCs decrease the susceptibility to many diseases. For example, the pill decreases by 40% the risk that a woman under 55 years of age will develop ovarian cancer. The risk of endometrial cancer is reduced by 50% in OC users. The pill also significantly lowers the risk of pelvic inflammatory disease--a condition that is involved in almost 20% of all gynecologic problems and is a leading cause of infertility. OC use reduces the risk of ectopic pregnancy. Further, by decreasing menstrual blood flow, the pill protects against iron-deficiency anemia. The pill is claimed to decrease premenstrual tension, menstrual cramps, and even acne. It has a protective effect against ovarian cysts and benign breast cancer. Finally, there is the possibility that OCs protect against the development of rheumatoid arthritis and duodenal ulcers.
 ...
PMID:Oral contraceptives come of age. 385 23

The usefulness of oral contraceptives (OCs) has been fully reappraised in recent years, and numerous beneficial effects on general health have been demonstrated over and above contraceptive action. Examination of several prospective and retrospective epidemiological studies has pointed to a reduced incidence of ovarian functional cysts and ovarian carcinoma in women taking OCs. Dysmenorrhea and premenstrual tension are also diminished while the risk of iron-deficiency anemia is decreased by 50% owing to a reduction in menstrual flow. There is approximately a 50% reduction in endometrial carcinoma risk, coupled with a significant reduction in the incidence of benign breast diseases. OCs also offer protection against rheumatoid arthritis and pelvic inflammation. Lastly, it is pointed that fears concerning augmented risk for cardiovascular disease while on OCs have proven to be false alarms. (author's modified)
 ...
PMID:[Positive effects of oral contraceptives]. 668 43

Studies have documented the protective effects of oral contraceptives (OCs) against 5 diseases: 1) OCs prevent 50-75% of potential cases of benign breast disease; there is an estimated annual reduction of 235 hospitalized cases for every 100,000 U.S. women using OCs or about 20,000 hospitalizations each year. 2)OCs reduce the occurrence of retention cysts of the ovary; an estimated 3000 surgical procedures for ovarian cysts are prevented each year in the U.S. 3) OC users have approximately 45% less iron-deficiency anemia than nonusers due to less menstrual flow. 4) OCs protect against the development of pelvic inflammatory disease (PID); 600 of every 100,000 OC users are prevented from contracting a 1st episode of PID and 156 PID hospitalizations are averted for every 100,000 OC users annually. 5) OCs protect against ectopic pregnancy; approximately 120 hospitalizations/100,000 users are prevented annually. 3 additional diseases may be prevented by OCs, although the evidence is not as conclusive as for the 5 previously discussed; OC users are only 1/2 as likely to develop: 1) rheumatoid arthritis, 2) endometrial cancer, and 3) ovarian cancer as nonusers. OCs have also been shown to reduce the incidence of such disorders as excessive menstrual bleeding, irregular menses, intermenstrual bleeding, painful menstruation, and premenstrual tension.
 ...
PMID:The noncontraceptive health benefits from oral contraceptive use. 711 6

The noncontraceptive health benefits of oral contraceptives were initially summarized a decade ago. Studies conducted in the last decade confirmed the findings of earlier studies with high-dose oral contraceptives and extended them to low-dose formulations. Among the noncontraceptive health benefits first cited were reductions in menorrhagia, irregular menses, endometrial cancer, ovarian cancer, functional ovarian cysts, benign breast disease, dysmenorrhea, premenstrual tension and iron-deficiency anemia. In addition, women who used oral contraceptives were less likely to develop rheumatoid arthritis or acute salpingitis, particularly moderate or severe forms, than were women using no method of contraception. Despite the fact that such benefits were identified more than 10 years ago and despite their inclusion in oral contraceptive labeling, women today are largely unaware of the noncontraceptive health benefits associated with oral contraceptive use.
 ...
PMID:Noncontraceptive benefits of oral contraceptives. 812 Aug 59

Gynecologists use either oral or parenteral progestogens either alone or in combination with estrogens to treat various conditions. Parenteral routes of progestogen delivery are intramuscular injections, intravaginal pessaries, subcutaneous implants, and vaginal rings. Progestogens treat dysfunctional uterine bleeding by first controlling the acute bleeding episode and then by establishing normal ovulatory cycles. 1-2 tablets of medroxyprogesterone acetate (MPA)/day or 1-3 tablets of norethindrone/day should stop uterine bleeding in 72 hours. If not, 25 mg intravenous premarin should control it in 6-24 hours. Cyclical progestational (e.g., MPA) therapy for 3-6 cycles should establish normal ovulatory cycles. After appropriate laparoscopic staging by double puncture technique, progestogens can be used to treat mild-moderate endometriosis. Gynecologists should consider the following criteria when selecting the ideal progestin for hormone replacement therapy: adjustment of dosage of progestin and estrogen over 3-6 months to maintain the beneficial effects of the estrogen and to minimize the adverse effects of the progestin, progestin dosage sufficient to protect against endometrial hyperplasia and cancer, economical progestin, and minimization of weight gain, depression, oral intolerance, and androgenic action. Hydrogesterone and MPA meet these criteria. Oral contraceptives with a progestin and the smallest possible dose of estrogen are well-tolerated, cause no break-through bleeding, produce minimal side effects, and protect against pregnancy (99% contraceptive effectiveness rate). They also protect against endometrial cancer, endometriosis, premenstrual tension, dysmenorrhea, and irregular cycles. Intramuscular injections of progestins (MPA, NET-EN), subcutaneous levonorgestrel implant, and the levonorgestrel IUD are new contraceptive developments and provide a high degree of contraceptive efficacy. MPA at very high doses cause remission of breast endometrial lesions.
 ...
PMID:Progestogens in gynaecological practice. 1217 92


1 2 Next >>