Objective To investigate the premature spontaneous ovulation rates in in vitro fertilization-embryo transfer (IVF-ET) cycles using gonadotropin-releasing hormone antagonist (GnRH-ant) and gonadotropin-releasing hormone agonist (GnRH-a), as well as the risk factors for premature spontaneous ovulation. Methods The rates of premature spontaneous ovulation in a total of 10 612 cycles using GnRH-ant or GnRH-a were compared. Matched case-controlled study and binary logistic regression model were conducted to analyze the risk factors for premature spontaneous ovulation. Results The spontaneous ovulation rate in the whole for GnRH-a cycles was 0.15%(13/8 514), compared with a 1.62%(34/2 098) in GnRH-ant cycles (P<0.01). Further matched controlled study and regression analyze found out that higher basal FSH level was a predominant risk and prediction factor for spontaneous ovulation (OR=1.20, P=0.009). Conclusions In GnRH-ant cycles, spontaneous ovulation rate is about 10 times than which in GnRH-a cycles. Diminished ovarian function is a predominate risk factor for premature spontaneous ovulation.

[Objective]To sort out and summarize the theory of nourishing Yin of ZHU Danxi and ZHANG Jingyue,and discuss the similarities and differences of two doctors'understanding of Yin deficiency and the treatment method of nourishing Yin.[Methods]Through the research method of documentics,this paper carefully studies the contents related to"Yin deficiency"in the major works of ZHU Danxi and ZHANG Jingyue,as well as relevant literature reports and analyzes the similarities and differences of the theory of nourishing Yin,classification of Yin deficiency and the treatment method of nourishing Yin between them.[Results]ZHU Danxi's treatment of Yin deficiency syndrome was based on the theory of"an excess of Yang with deficiency of Yin""ministerial fire(Xianghuo)".He took the hyperactivity of ministerial fire as the main pathogenesis of Yin deficiency syndrome.In the treatment method,he paid attention to reducing fire,and made good use of the bitter and cold products such as Anemarrhenae Rhizoma(Zhimu)and Cortex Phellodendri(Huangbai),and paid equal attention to nourishing Yin and reducing fire.ZHANG Jingyue,on the basis of the theory that"Yin and Yang are one"and"true Yin was the foundation of Yang Qi",believed that the deficiency of true Yin can lead to Yin deficiency and Yang deficiency,and proposed that Yin deficiency had two aspects:water deficiency in Yin and fire deficiency in Yin.In the treatment method,nourishing true Yin by the sweet and warm medicines such as Radix Rehmanniae Preparata(Shudihuang)was emphasized,and Yin Yang mutual aid was advocated.[Conclusion]Whether it is the thought of nourishing Yin or the specific treatment and prescription,ZHANG Jingyue inherited and made a breakthrough on ZHU Danxi.He further improved the theory of nourishing Yin and the theory of warm-recuperation in traditional Chinese medicine,and created a series of prescriptions based on nourishing true Yin.It is of great significance to study the similarities and differences of their thought,theory,clinical symptoms and treatment for sorting out the development context of the treatment method of nourishing Yin.

OBJECTIVETo examine cerebral pathologies in cerebral amyloid angiopathy in a rat model of Alzheimer's disease.

METHODSRat models of Alzheimer's disease was established by stereotactic Aβ1-42 fiber injection in the bilateral hippocampus. The cognitive function of the rats was evaluated with water maze test. HE staining, Congo red staining and double-labeling indirect immunofluorescence were used to examine the dynamic distribution of Aβ fiber deposit in the brain.

RESULTSThe model rats showed significant differences from the control rats in the escape latency and the times of crossing platform in waster maze test. HE staining revealed a decreased number and degeneration of the granular cells with increased glial cells in the model rats. Congo Red staining showed that the Aβ fiber was deposited gradually in the small vessels in the brain parenchyma to cause thickening, stenosis or occlusion of the small vessels. Immunofluorescence staining detected Aβ fiber migration from the parenchyma to the walls of the small arteries in the rat models.

CONCLUSIONCerebral amyloid angiopathy is a major pathological feature in Alzheimer's disease.

Alzheimer Disease ; pathology ; Amyloid beta-Peptides ; chemistry ; Animals ; Brain ; pathology ; Cerebral Amyloid Angiopathy ; pathology ; Disease Models, Animal ; Rats ; Staining and Labeling

Objective:To explore the effectiveness of blood glucose monitoring at different frequencies on the control of blood glucose in overweight/obese prediabetes population on the basis of health education, and to provide a basis for blood glucose monitoring and management in prediabetes population.Methods:A randomized controlled study was used. 90 prediabetes patients from the Physical Examination Center/Endocrine Clinic/Endocrine Ward of the First Affiliated Hospital of China Medical University from January to March 2021 were selected by continuous sampling method, and were randomly divided into the group A, B and C by lottery method, with 30 patients in each group, and the study period was 12 months. Group A, B and C received unified health education guidance at enrollment, 6-month follow-up, and 12-month follow-up. Group A underwent blood glucose monitoring every 6 months, group B underwent blood glucose monitoring every 3 months, group C underwent blood glucose monitoring every month. Recorded and compared the levels of glycated hemoglobin (HbA1c), fasting plasma glucose (FPG), 2-hour post-load blood glucose (2 hPG), and body mass index (BMI) of three groups at the time points of enrollment, 6-month follow-up, and 12-month follow-up.Results:There were 15 males and 15 females in the group A, 14 males and 16 females in the group B, 12 males and 18 females in the group C. The ages in the group A, B and C were (48.37 ± 10.80), (49.20 ± 9.25) and (44.77 ± 12.28) years old respectively. At the time point of 12-month follow-up, the HbA1c in the group A, B and C were (6.01 ± 0.36)%, (5.82 ± 0.35)% and (5.64 ± 0.27)%, the difference was significant ( F=9.72, P<0.05); the FPG in the group A, B and C were (5.64 ± 0.88), (5.05 ± 0.53) and (4.98 ± 0.48)mmol/L, the difference was significant ( F=9.23, P<0.05); the 2 hPG in the group A, B and C were (9.38 ± 1.23), (8.23 ± 0.72) and (7.71 ± 0.86) mmol/L, the difference was significant ( F=23.89, P<0.05); the BMI in the group A, B and C were (28.52 ± 4.24), (27.02 ± 2.67) and (25.56 ± 1.34) kg/m 2, the difference was significant ( F=7.37, P<0.05). Conclusions:On the basis of health education, compared with the routine blood glucose monitoring once every six months, blood glucose monitoring once every three months and once every month can improve the blood glucose control and BMI level of overweight/obese young and middle-aged people with prediabetes, and provide a basis for seeking an effective and economic blood glucose monitoring mode in clinical practice.

Objective To detect the anti-citrullinated alpha-enolase peptide 1 (CEP-1) antibody in rheumatoid arthritis (RA). Methods One hundred and twenty-nine patients with RA were enrolled randomly. Thirty-one patients with primary Sj?gren's syndrome (pSS), 32 patients with systemic lupus erythematosus (SLE), 32 patients with osteoarthritis (OA), and 106 healthy controls (HC) were include into this study. Anti-CEP-1 antibody was detected by enzyme-linked immunosorbent assay (ELISA). The correlations between serum anti-CEP-1 antibody and clinical features, disease activities,laboratory tests or Sharp scores of RA patients were evaluated. Mann-Whitney U test and χ2 test were used for statistical analysis. Results ①Anti-CEP-1 antibodies were positive in 64.3%(83/129) of RA patients, 22.6%(7/32) of pSS patients, 12.5%(4/32) of SLE patients, none of OA patients (0/32) or healthy controls. The positivity of anti-CEP-1 antibody was significantly higher than those in pSS ( χ2=17.7), SLE ( χ2=25.7), OA ( χ2=42.5), and healthy controls ( χ2=102.6) (P<0.01, respectively). The specificity of anti-CEP-1 antibody in RA was 94.5%. ②In patients without anti-citrullinated protein/peptide autoantibodies (ACPA), rheumatoid factor (RF) or the patients without ACPA and RF, the positive rate of anti-CEP-1 antibody was 30.3%(10/33), 41.9%(18/43) and 22.7%(5/22), respectively. ③Compared with patients without anti-CEP-1 antibodies, patients with anti-CEP-1 anti-bodies had higher rates of joint deformity, bone erosion and high disease activities (P<0.05, respectively). ④ Higher rate of interstitial lung disease (ILD) was found in RA patients with anti-CEP-1 antibody (19.3% vs 4.3%, χ2=5.494, P<0.05). ⑤The patients with anti-CEP-1 anti-body had higher rates of elevated erythrocyte sedimentation rate (ESR) ( χ2=6.543) and decreased serum albumin ( χ2=6.59), compared to patients without anti-CEP-1 antibody (P<0.05, respectively). Conclusion Anti-CEP-1 antibody has high sensitivity and specificity for RA diagnosis. Combination of anti-CEP-1 antibody with other RA antibodies might improve the early diagnosis of RA. Anti-CEP-1 antibody is significantly associated with joint damage, disease activity and pulmonary interstitial fibrosis.

OBJECTIVE：To investigate the clini cal features of thrombocytopenia induced by antidepressants ，and to provide reference for the rational use of clinical drugs. METHODS ：Retrieved from CNKI ，Wanfang database ，VIP，PubMed and Web of Science，during Jan. 1st in 1985 to Aug. 31st in 2020，case reports about antidepressants-induced thrombocytopenia was collected and analyzed descriptively in terms of demographic characteristics ，medication，clinical manifestations ，treatment and outcome. RESULTS：A total of 17 literatures were retrieved ，and 19 patients were included ，involving 10 male and 9 female，aged from 5 to 95 years old ，with an average of （48±24）years old. Nine kinds of drugs were involved ，including 4 cases of escitalopram ，3 cases of citalopram ，3 cases of fluoxetine ，3 cases of mirtazapine ，2 cases of amitriptyline ，1 case of sertraline ，1 case of paroxetine，1 case of mianserin and 1 case of imipramine. There were 9 cases of single drug and 10 cases of drug combination. All 19 patients suffered from thrombocytopenia at 3 d-10 years after medication ，14 of them had hemorrhage tendency. Main clinical manifestations included mucocutaneous hemorrhage ，gingival bleeding ，black stool ，hematochezia，vaginal bleeding ，ocular hemorrhage，alveolar hemorrhage. No bleeding was found in 5 cases. After drug withdrawal/changing drugs and other symptomatic treatment， platelet count of 19 patients recovered to normal ， and bleeding symptoms disappeared. CONCLUSIONS ： Thrombocytopenia caused by antidepressants has no obvious clinical features and is not easy to be found ，but it may lead to severe； bleeding symptoms if it is not found in time. The changes of platelet count should be closely monitored in clinical application of such drugs to ensure the safety of drug use.