Pregnancy Outcomes of In Vitro Fertilization with or without Ovarian Hyperstimulation Syndrome: A Retrospective Cohort Study in Chinese Patients / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>The effect of ovarian hyperstimulation syndrome (OHSS) on pregnancy outcomes of in vitro fertilization (IVF) patients is still ambiguous. This study aimed to analyze pregnancy outcomes of IVF with or without OHSS in Chinese patients.</p><p><b>METHODS</b>A retrospective cohort study was undertaken to compare pregnancy outcomes between 190 women with OHSS and 197 women without OHSS. We examined the rates of clinical pregnancy, multiple pregnancies, miscarriage, live birth, preterm delivery, preterm birth before 34 weeks' gestation, cesarean delivery, low birth weight (LBW), and small-for-gestational age (SGA) between the two groups. Odds ratios (OR s) and 95% confidence intervals (CI s) of measure of clinical pregnancy were also analyzed.</p><p><b>RESULTS</b>The clinical pregnancy rate of OHSS patients was significantly higher than that of non-OHSS patients (91.8% vs. 43.5%, P < 0.001). After controlling for drug protocol and causes of infertility, the adjusted OR s of moderate OHSS and severe/critical OHSS for clinical pregnancy were 4.65 (95% CI, 1.86-11.61) and 5.83 (95% CI, 3.45-9.86), respectively. There were no significant differences in rates of multiple pregnancy (4.0% vs. 3.7%) and miscarriage (16.1% vs. 17.5%) between the two groups. With regard to ongoing clinical pregnancy, we also found no significant differences in the rates of live birth (82.1% vs. 78.8%), preterm delivery (20.9% vs. 17.5%), preterm birth before 34 weeks' gestation (8.6% vs. 7.9%), cesarean delivery (84.9% vs. 66.3%), LBW (30.2% vs. 23.5%), and SGA (21.9% vs. 17.6%) between the two groups.</p><p><b>CONCLUSION</b>OHSS, which occurs in the luteal phase or early pregnancy in IVF patients and represents abnormal transient hemodynamics, does not exert any obviously adverse effect on the subsequent pregnancy.</p>

Factors Associated with Effectiveness of Treatment and Reproductive Outcomes in Patients with Thin Endometrium Undergoing Estrogen Treatment / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>Thin endometrium is associated with poor reproductive outcomes; estrogen treatment can increase endometrial thickness (EMT). The aim of this retrospective cohort study was to investigate the factors influencing the effectiveness of estrogen treatment and reproductive outcomes after the treatment in patients with thin endometrium.</p><p><b>METHODS</b>Relevant clinical data of 101 patients with thin endometrium who had undergone estrogen treatment were collected. Possible factors influencing the effectiveness of treatment were analyzed retrospectively by logistic regression analysis. Eighty-seven infertile women without thin endometrium who had undergone assisted reproduction served as controls. The cases and controls were matched for age, assisted reproduction method, and number of embryos transferred. Reproductive outcomes of study and control groups were compared using Student's t-test and the Chi-square test.</p><p><b>RESULTS</b>At the end of estrogen treatment, EMT was ≥8 mm in 93/101 patients (92.1%). Effectiveness of treatment was significantly associated with maximal pretreatment EMT (P = 0.017) and treatment duration (P = 0.004). The outcomes of assisted reproduction were similar in patients whose treatment was successful in increasing EMT to ≥8 mm and the control group. The rate of clinical pregnancy in patients was associated with the number of good-quality embryos transferred in both fresh (P = 0.005) and frozen-thawed (P = 0.000) embryo transfer cycles.</p><p><b>CONCLUSIONS</b>Thinner EMT before estrogen treatment requires longer treatment duration and predicts poorer treatment outcomes. The effectiveness of treatment depends on the duration of estrogen administration. Assisted reproductive outcomes of patients whose treatment is successful (i.e., achieves an EMT ≥8 mm) are similar to those of controls. The quality of embryos transferred is an important predictor of assisted reproductive outcomes in patients treated successfully with exogenous estrogen.</p>

Study on "heat by heat gain" effect of wine-broiled Curculigo orchioides / 中草药

Objective: To compare the thermal resistance of Curculigo orchioides and wine-broiled C. orchioides by pharmaco- dynamic index, and to explore the processing principle "heat by heat gain" of wine-broiled C. orchioides. Methods: The "heat" influence of raw C. orchioides and processing principle "heat by heat gain" of wine-broiled C. orchioides were determined by comparing the effects of raw and processed C. orchioides on 16 kinds of indicators in the serum of model rats with kidney Yang deficiency-cold syndrome induced by hydrocortisone, such as adrenaline (Adr), norepinephrine (NE), dopamine (DA), 5-hydroxytryptamine (5-HT), cyclic adenosine monophosphate (cAMP), cyclic guanosine monophosphate (cGMP), cAMP/cGMP value, three iodine thyronine (T3), four iodine thyronine (T4), thyroid stimulating hormone (TSH), testosterone (Ts), Na+, K+-ATP enzyme, glucose (Glu), total cholesterol (TC), total protein (TP), and triglyceride (TG). Results: The raw C. orchioides effectively reduced the contents of triglycerides and cGMP, and improved the 14 indicators in the serum of model rats with kidney Yang deficiency-cold syndrome induced by hydrocortisone, such as Adr, NE, DA, 5-HT, cAMP, T3, T4, TSH, Ts, Na+, K+-ATP enzyme, Glu, TC, TP, and the ratio of cAMP/cGMP. The effects of wine-broiled C. orchioides on increasing 12 indexes such as Adr, NE, 5-HT, cAMP, T3, T4, TSH, Ts, Na+, K+-ATP enzyme, Glu, TC, and TP were more significant with obvious differences (P < 0.05, 0.01) than the raw C. orchioides group. Conclusion: The "heat" influence of C. orchioides is enhanced after broiled by wine, and the processing principle "heat by heat gain" has been established. The "heat" influence is impoved by enhancing the material energy metabolism, improving the functions of the central neurotransmitter and pituitary-adrenal axis, cyclic nucleotide level, and target axis.

Monitoring the breast changes of Chinese postmenopausal women under long-term hormone replacement therapy by mammary ultrasonography / 中国医学科学院学报

<p><b>OBJECTIVE</b>To investigate the effects of long-term hormone replacement therapy (HRT) on the breasts of postmenopausal women using mammary ultrasonography.</p><p><b>METHODS</b>An open randomized clinical study was designed. The percutaneous estradiol gel was used in a cyclic regimen combined with micronized progesterone (MP) or medroxyprogesterone acetate (MPA). Sixty healthy women (natural menopause for 1 to 5 years) were recruited and divided into four groups according to the dosage of estrogen and two kinds of progestin. All were given for 25 days per month. Mammary ultrasonography was used to observe breast glandular section thickness, breast duct width, the morphology of lobular unit and the blood flow of color Doppler imaging at baseline and every year from the second to seventh year of HRT. The serum estradiol was also measured from the 15th to 25th day of the cycle. Breast pain was recorded by the subjects.</p><p><b>RESULTS</b>(1) The breast glandular section thickness after HRT was larger than that of before HRT. The breast glandular section thickness became larger gradually over time while the breast duct width became smaller over time. The breast duct width of the fifth year of HRT was significantly different from that of the sixth year (P < 0.05). (2) Twenty-two persons had new breast structure changes after HRT, and the accumulated incidence was 41.5%. New solid lesions formation occurred in five subjects (8.3%) and new cyst formation occurred in one subject (1.7%). After the second year of HRT, the serum estradiol level of the subjects with breast structure changes was higher than that of without breast structure changes and in the sixth year of HRT, and the difference was significant (P < 0.05). After the second year of HRT, the breast glandular section thickness of the subjects with breast structure changes was larger than that of without breast structure changes and in the fifth and sixth year of HRT, the difference was significant (P < 0.05). (3) After HRT, the serum estradiol level of subjects with mastalgia was higher than that of without mastalgia and in the second and sixth follow-up year, the difference was significant (P < 0.05).</p><p><b>CONCLUSIONS</b>There is an increasing trend of the percentage of glandular tissues of the breast after HRT. There is an increasing trend of the serum estradiol level and the breast glandular section thickness among the subjects with the breast structure changes; there is an increasing trend of the serum estradiol level among the subjects with mastalgia. Mammary ultrasonography can be used to monitor breast structure changes and breast lesions during HRT.</p>