The results of previous studies on the menstrual-related sleep changes were inconsistent. The menstrual-related circadian sleep-wake and rest-activity rhythms changes are still uncertain. Using actigraphic monitoring of wrist activity, we investigated the sleep-wake and rest-activity patterns of 12 normally cyclic healthy women during reproductive life. Multivariate analyses were performed during the four phases of the menstrual cycle: menstrual phase (lst to 5th day of menstrual cycle), late follicular/peri-ovulation phase (11th to 15th day), early to mid luteal phase (18th to 23rd day) and late luteal phase (25th to 28th day), respectively. The variables of circadian sleep-wake pattern were similar in the four phases, except an increased tendency of the sleep latency in peri-ovulation phase compared with the early to mid-luteal phase (19+/-18 vs 9+/-6), but unfortunately no statistical significance were found (P<0.10). Concerning the circadian patterning of rest and activity, the interdaily stability (IS) in menstrual phase was significantly higher than the early to mid luteal phase (P<0.05). In early to mid luteal phase, the M10 onset time was significantly earlier compared with that of the late follicular/peri-ovulation phase (P<0.05), and the cosinor peak time was significantly earlier compared with that of the late luteal phase (P<0.05). The circadian periodogram calculated the period length of the rhythm of average woman. The average length was (24.01+/-0.29) h, and there was no significant difference among the four menstrual phases. The results suggest that the phase of circadian rest-activity rhythm may be modulated by the menstrual cycle, but the quantity and quality of the rest-activity rhythm have no essential different, and that menstrual cycle may have no effects on the circadian sleep-wake rhythm in normally cyclic healthy women.
Activity Cycles ; physiology ; Circadian Rhythm ; Female ; Humans ; Luteal Phase ; physiology ; Menstrual Cycle ; physiology ; Sleep ; physiology ; Wakefulness ; physiology

Adrenal Hyperplasia, Congenital ; metabolism ; pathology ; Female ; Humans ; Menstrual Cycle ; physiology ; Ovarian Hyperstimulation Syndrome ; enzymology ; pathology

While hormonal changes during the ovulatory cycles affect multiple body systems, medical management, including medication dosing remains largely uniform between the sexes. Little is known about sex-specific pharmacology in women. Although hormonal fluctuations of the normal menstruating process alters women's physiology and brain biochemistry, medication dosing does not consider such cyclical changes. Using schizophrenia as an example, this paper illustrates how a woman's clinical symptoms can change throughout the ovulatory cycle, leading to fluctuations in medication responses. Effects of sex steroids on the brain, clinical pharmacology are discussed. Effective medication dose may be different at different phases of the menstrual cycle. Further research is needed to better understand optimal treatment strategies in reproductive women; we present a potential clinical trial design for examining optimal medication dosing strategies for conditions that have menstruation related clinical fluctuations.
Biochemistry ; Brain ; Clothing ; Female ; Humans ; Male ; Menstrual Cycle ; Menstruation ; Pharmacology ; Pharmacology, Clinical ; Physiology ; Psychopharmacology ; Schizophrenia ; Steroids

BACKGROUNDPolycystic ovary syndrome (PCOS) is considered to be the most common endocrine disorder in women of reproductive age. The involvement of an abnormal menstrual cycle in the etiology of PCOS remains unclear. We aimed to analyze the characteristics of abnormal menstrual cycles and their association with PCOS in community and hospital patient populations.

METHODSWomen with PCOS identified from 2111 permanent female residents in the community of Beijing and 506 outpatients obtained from the reproductive clinic of Peking University Third Hospital were recruited for this study, comprising the PCOS community group and the PCOS hospital group, respectively. Each group was further divided into four subgroups according to the length of menstrual cycles: <21 days; 21-34 days; 35-60 days; and >60 days. Women in each group were interviewed using a questionnaire to assess factors including age, age of menarche, menstrual cycle history, related family history, and modified Ferriman-Gallwey (mF-G) score. All women received transvaginal ultrasound scan and had fasting blood samples taken for endocrine evaluation. A two-tailed P value of <0.05 was considered significant.

RESULTSIn the community population, the prevalence of abnormal menstrual cycle was 27.19% (574/2111). The prevalence of PCOS in the community was 6.11% (129/2111) according to Rotterdam criteria. In the community group, the most common menstrual cycle length was 35-60 days, whereas for the hospital group, it was >60 days. In both the community and hospital groups, the most common phenotype of PCOS was that of Oligo/amenorrhea+PCO+ hyperandrogenism (HA) (O+P+H) (P=0.000). With increasing cycle length of 35-60 days to >60 days, the percentages of Oligo/amenorrhea+PCO (O+P) and O+P+H were found to significantly decrease in the community group and significantly increase in the hospital group (P=0.000 for each). In the hospital group, as the menstrual cycle length increased from 35-60 days to >60 days, the rate of spontaneous abortion increased significantly (P=0.000), meanwhile the rate of poorly-secreted endometrium and abnormal endometrial hyperplasia increased significantly (P=0.000).

CONCLUSIONSThe prevalence of PCOS in the Beijing community of women was 6.11%. Oligo/amenorrhea was the most common type of abnormal menstrual cycle and may be an indicator for PCOS and endometrial lesions. Gynecologists should seek relevant medical information from women in the community to promptly diagnose PCOS and then follow up patients for potential development of subsequent complications.

Adult ; Endometrial Hyperplasia ; diagnosis ; physiopathology ; Female ; Humans ; Menstrual Cycle ; physiology ; Middle Aged ; Polycystic Ovary Syndrome ; diagnosis ; physiopathology

Gender differences in asthma have been observed with a preponderance of boys affected before puberty and girls during and after puberty. The known influences of the menstrual cycle on asthma support a role for female sex hormones on the changing expression of asthma during adolescence. The purpose of this study was to investigate obesity, the menstrual cycle and lung function in adolescent girls. One hundred and three female high school girls (mean age: 15.9+/-0.8 yr) were enrolled. The investigation was performed using a questionnaire that included history of asthma, the menstrual cycle, other combined allergic disease and obesity. The skin prick and pulmonary function test during menstruation period and non-menstruation period. Analyses of these factors were compared. The forced expiratory volume in one second (FEV(1))/forced vital capacity (FVC) was significantly lower in the obese group compared to the non-obese group (99.8+/-13.8 vs. 107.1+/-10.2, p=0.03). The FEV(1) was significantly lower in the girls during menstruation period than in the girls who were not on menstruation (77.5+/-10.2 vs. 80.4+/-8.6, p=0.03). Our results showed that changes of pulmonary function were related to menstrual cycle and obesity in Korean adolescent girls.
Adolescent ; Asthma/diagnosis/*etiology ; Body Mass Index ; Female ; *Forced Expiratory Volume ; Humans ; Korea ; Menstrual Cycle/*physiology ; Obesity/*complications ; Puberty ; Questionnaires ; *Vital Capacity

OBJECTIVES: Recent studies, including our own, demonstrated that the novel expression of LH gene in rat gonads and uterus, indicating that the local production and action of the LH-like molecule. In the present study, we investigated whether human uterus also expresses the LH gene. DESIGN: Reverse transcription-polymerase chain reaction (RT-PCR) amplified the cDNA fragments coding LHbeta polypeptide from human endometrium but not from myometrium. Presence of the transcripts for the alpha-subunit in human endometrium was also confirmed by RT-PCR. RESULTS: Transcripts for LHbeta subunit were detected in endometrial samples from women with endometriosis. The gene for LH/hCG receptor was expressed in both endometrium and myometrium, showing good agreement with previous studies. Increased level of LHbeta transcript was determined in the endometrium from follicular phase compared to that from luteal phase. CONCLUSION: Taken together, our findings demonstrated that 1) the gense for LH subunits and LH/hCG receptor are expressed in human uterus, 2) the uterine LH expression was changed during menstrual cycle, suggesting that the uterine LH may play a local role in the control of uterine physiology and function(s).
Animals ; Clinical Coding ; DNA, Complementary ; Endometriosis ; Endometrium ; Female ; Follicular Phase ; Gonads ; Humans* ; Luteal Phase ; Lutein* ; Menstrual Cycle ; Mice ; Myometrium ; Physiology ; Rats ; Uterus*

BACKGROUND: Measuring colonic transit time (CTT) by the radio-opaque marker method is simple, widely available and important for the diagnosis of slow transit constipation. Moreover, the effects of gender and menstrual cycle on CTT remain controversial. Thus, in this study, we examined the effects of gender and menstrual cycle on CTT in healthy subjects. METHODS: We measured CTT in 42 healthy subjects (21M, 21F) by using a radio-opaque marker, Kolomark (TM). Two simple abdominal radiographs were taken on the 4th and 7th days. Average daily intake of dietary fiber and menstrual history were surveyed. RESULTS: The mean CTT of the 42 healthy subjects was 26.5 +/- 19.4 hours. The mean CTT was not significantly different between the male and female subjects (22.3 +/- 16.1 h vs. 30.1 +/- 21.4 h, p> 0.05). However, the mean CTT of 11 female subjects in the luteal phase was significantly longer than that of 10 female subjects in the follicular phase (40.9 +/- 19.0 h vs. 20.6 +/- 19.2 h, p< 0.05). Serum progesterone level, age, BMI, and the average daily intake of dietary fiber did not correlate with CTT. CONCLUSION: The effects of the menstrual cycle should be considered in interpreting CTT in young women.
Adult ; Colon/*physiopathology/radiography ; Comparative Study ; Constipation/physiopathology/radiography ; Contrast Media ; Female ; Gastrointestinal Transit/*physiology ; Human ; Male ; Menstrual Cycle/*physiology ; Middle Aged ; Radiography, Abdominal ; Sex Factors ; Support, Non-U.S. Gov't

This study investigated the prevalence and risk factors of urinary incontinence (UI) among perimenopausal women in Wuhan. A cross-sectional survey was performed on 1067 women aged 40-65 years sampled in Wuhan urban area from April to October 2014. Information about demographic characteristics, menstruation, parity and UI symptoms was collected using a questionnaire. The data were evaluated by Chi-square test and multiple Logistic regression analysis. The prevalence rate of UI was 37.2%, with stress UI (32.2%) being more prevalent than urgency UI (21.6%) and mixed UI (16.6%). 31.2% women with UI stated that UI had negative impact on their life. Risk factors for UI included menstrual disorder, menopause, overweight, perineal laceration, atrophic vaginitis, constipation and pelvic organ prolapse. Appropriate investigation apropos the factors associated with UI should be performed to diminish its impact on women's life.
Adult ; Aged ; Atrophic Vaginitis ; epidemiology ; physiopathology ; Constipation ; epidemiology ; physiopathology ; Female ; Humans ; Lacerations ; epidemiology ; physiopathology ; Menstrual Cycle ; physiology ; Middle Aged ; Overweight ; epidemiology ; physiopathology ; Pelvic Organ Prolapse ; epidemiology ; physiopathology ; Perimenopause ; physiology ; Pregnancy ; Risk Factors ; Surveys and Questionnaires ; Urinary Incontinence ; epidemiology ; physiopathology

The enzyme complex 3b-hydroxysteroid dehydrogenase/delta(5)-delta(4)-isomerase (3beta-HSD) is involved in the biosynthesis of all classes of active steroids. The expression of 3beta-HSD in human uterine endometrium during the menstrual cycle and decidua was examined in an effort to understand its role during ova implantation. 3beta-HSD was weakly expressed in the glandular epithelium of the proliferative phase and moderately expressed in the glandular epithelium of secretory phase of the endometrium. In the decidua of the ectopic pregnancy, 3beta-HSD was strongly expressed. The human uterine endometrial 3beta-HSD was identified as being the same type as the placental 3beta-HSD by RT-PCR and sequence analysis. In addition to the expression of 3beta-HSD, P450scc was expressed in the decidua of the ectopic pregnancy. These results suggest that pregnenolone might be synthesized from cholesterol by P450scc de novo and then, it is converted to progesterone by 3beta-HSD in the uterine endometrium. The data implies that the endometrial 3beta-HSD can use not only the out-coming pregnenolone from the adrenal gland but also the self- made pregnenolone to produce progesterone. The de novo synthesis of progesterone in the endometrium might be a crucial factor for implantation and maintenance of pregnancy.
Cholesterol/chemistry ; Cholesterol Side-Chain Cleavage Enzyme/*biosynthesis/genetics ; Decidua/enzymology ; Endometrium/*enzymology ; Female ; Gene Expression/physiology ; Human ; Menstrual Cycle/physiology ; Multienzyme Complexes/*biosynthesis/genetics ; Placenta/enzymology ; Pregnancy ; Pregnenolone/biosynthesis ; Progesterone/biosynthesis ; Progesterone Reductase/*biosynthesis/genetics ; Steroid Isomerases/*biosynthesis/genetics

OBJECTIVETo investigate the relationship between fetal growth restriction and decreased ovarian reserve (DOR) in adulthood to screen high-risk population for early interventions.

METHODSForty-four patients with FGR and 88 normal women aged 18-40 years were enrolled. All the subjects were examined for serum levels of follicle-stimulating hormone (FSH), inhibin B (INH-B), and anti-mullerian hormone (AMH) using enzyme-linked immunosorbent assay method in the first 3-5 days of the menstrual cycle, and the counts of antrum ovarian follicle were detected by transvaginal or transabdominal ultrasonography.

RESULTSThe serum levels FSH, INHB, AMH, and AFC in FGR group differed significantly from those in the control group (P<0.05).

CONCLUSIONFGR will affect reproductive endocrine function in adulthood to cause a decreased ovarian reserve.

Adolescent ; Adult ; Anti-Mullerian Hormone ; blood ; Case-Control Studies ; Enzyme-Linked Immunosorbent Assay ; Female ; Fetal Growth Retardation ; Follicle Stimulating Hormone ; blood ; Humans ; Inhibins ; blood ; Menstrual Cycle ; Ovarian Follicle ; physiology ; Ovarian Reserve ; Prospective Studies ; Young Adult