Objective To investigate the significance of detection of Serum anti‐Helicobacter pylori(HP)and pepsinogen(PG) in patients with reflux esophagitis(RE) .Methods 118 RE patients (RE group) ,60 patients with other other gastropathy (other gas‐tropathy group) and 60 healthy subjects (healthy group) were detected serum HP antibodies ,PG levels ,compared serum PGⅠ ,PGⅡ level ,PGR and HP antibody positive rate between the RE group ,the other gastropathy group and the healthy group ,between the patients at different pathological degrees of the RE group .Results The levels of PG Ⅰ ,PGR and HP antibody positive rate of the RE group were lower than those of the other gastropathy group and the healthy group ,the healthy group was lower than the other gastropathy group ,the difference was statistically significant (P<0 .05) ,and compared with the control group ,there was no signifi‐cant difference in serum PG Ⅱ levels (P>0 .05);The serum PGⅠ level ,PGR and HP antibody positive rate of patients in grade A , B of the RE group were lower than those of the patients in grade C ,D (P<0 .05) ,the difference was statistically significant ,and there was no statistical significance in serum PG Ⅱ levels of the patients in grade C ,D (P>0 .05) .Conclusion The serum PGⅠlevel ,PGR and HP antibody positive rate of the patients with RE decrease ,HP infection is a protective mechanism of RE ,the dis‐ease exacerbates with the infection decreases ,detection of serum HP antibody and the level of PG has important clinical value in the diagnosis and prognosis of RE .

Two types of steroid 5?-reductase isozymes were found in human and rats.5?-reductase type 2 deficiency in male lead to male pseudohermaphroditism and other related phenotypes.The content of this review includes:① The progress in the fields of 5?-reductase research;②Biochemical characteristics and physiological effects of 5?-reductase.③ Gene structure and mutation in 5?-reductase genes,clinical and chemical features of 5?-reductase type 2 deficiency syndrome.④Inhibitory agents of 5?-reductase and their mechanism and clinical use.The investigation in 5?-reductase help to illuminate physiological effect and sexual differentiation of androgen.The development of new inhibitory agents for 5?-reductase creats new strategy for diseases caused by imbalance of androgen action.Their mechanism and long effects of clinical use need further investigation and observation.

Objective To evaluate the efficacy of Marvelon on treatment of adenomyosis.Methods A total of 42 women with adenomyosis were recruited in the study.They were given Marvelon on the first day of menstruation,1 piece,qd,continouly for 21 days.With an alternation of seven days a new cycle begins.There are 6 cycles in total.We observe their degree of dysmenorrheal,menstrual blood volume(MBV) ,hemoglobin and the volume of uterus before and after Marvelon used.Results After 6 months,the dysmenorrheal remitted obviously,the score decline from (8.51±1.73 ) to (0.62±0.70) ,P <0.01.The MBV reduced and hemoglobin rise distinctly ,before treatment Hb is (104.71±12.09) while (112.00±8.57)after therapy,P <0.01.After treatment the volume of uterus shrinks a little, but not significant(P > 0.05).Conclusion Marvelon is an effective drug in treatment of adenomyosis in the near future,and is cheap,convcnieat.

Stromal preadipocytes from human omental adipose tissues were isolated with enzyme-digesting method,and cultured for inducing differentiation.Preadipocyte factor-1 was abundant during preadipoeyte stage,whereas lipoprotein lipase and PPARγ2 mRNA were rapidly up-regulated at early stage of differentiation and CCAAT/enhancer binding protein expression was increased rather late.In addition,resistin expression and secretion was primarily detectable in preadipocytes,leptin was gradually increased during adipogenesis,whereas adiponectin appeared specifically in mature adipocytes.Insulin-like growth factor-Ⅰ secretion was remarkably detected in both preadipocytes and mature adipocytes.

Objective To analyse the clinical significance of LHRH exciting test in the differential diagnosis of constitutional delayed puberty (CDP) and hypogonadotropic hypogonadism (HH). Methods Eighty-one cases from 1982 to 1998 were investigated and followed up. They were all at genital stage Ⅰ. After injection of 100 ?g LHRH, the blood samples (3 ml) were taken at -15, 0, 15, 30, 45, 60, 90 and 120 min. The serum LH and FSH levels were determined by radioimmunoassay. Then they were followed up every 3-24 months. After they received LHRH exciting test, they were followed up until over 18 years old. According to their puberty development status, they were divided into 3 groups, normal group (n=34),CDP group (n=16) and HH group (n=31),andthemeanage,whenthey received LHRH exciting test, was (10.2?0.9, range 9-14) years, (16.0?1.0, range 14-18) years and (17.1?1.4, range 16-22) years respectively. Results There were no significant differences in serum LH baseline level and peak time in normal, CDP and HH groups, but the serum LH peak level, LH increment (peak LH level minus baseline LH level), LH increment ratio (peak level/baseline level of LH) and the area under LH curve (AUC LH ) of normal group were significantly higher than those of CDP group and HH group (all P

Objective To investigate correlation between the fear related to childbirth and the social support in pregnant women in order to provide evidence for clinical intervention. Methods A total of 351 pregnant women from 2 hospitals were recruited from July to December, 2014 in city of Guangzhou. They were investigated with the self- designed questionnaire of general conditions measurement, the childbirth Attitudes Questionnaires and the perceived Social Support Scale. Results The total scores of the fear related to childbirth and the social support in pregnant women were 32.29±6.25 and 46.59±7.13, respectively. Scores of the total scale and the factors of the fear related to childbirth and the social support were negatively correlated (r=-0.798--0.134,P < 0.05). Conclusions Negative correlation exists between the fear related to childbirth and the childbirth self-efficacy in pregnant women. To reduce the fear related to childbirth, their families should be encouraged to provide more support for pregnant women.

Objection: To investigate the effects of tumor necrosis factor-?(TNF-?)and interferon-?(IFN-?) on the proliferation of fibrobl asts from healthy persons(NM-FB) and patients with oral submucous fibrosis(OSF -FB).Methods: Fibroblast cultures were established from t he buccal mucosa of five healthy individuals and six patients with OSF. The effe cts of TNF-? and IFN-? on the proliferation of NM-FB and OSF-FB were studi ed by MTT colorimetric assay.Results: TNF-? at 100～10 0 00 U/ml stimulated NM-FB and OSF-FB proliferation (P

BACKGROUND:Fetal bovine serum based media used for expanding and cryopreserving human mesenchymal stem cells raise safety concerns in the clinical setting. OBJECTIVE:To investigate the feasibility of human umbilical cord blood plasma as a replacement for fetal bovine serum in culture and cryopreservation of human mesenchymal stem cells derived from umbilical cord. METHODS:Umbilical cord blood units were suitable for this research if they fulfil ed the donor selection criteria of the Guangzhou Cord Blood Bank strictly. Cord blood plasma was ready to use after col ected from the plasma reduction during the suitable cord blood units processing and pooling. Umbilical cord mesenchymal stem cells were harvested from the umbilical cord tissue of health ful-term newborns after delivery by enzyme digestion and were cultured in the presence of Dulbecco’s modified Eagle’s medium/Ham’s nutrient mixture F-12 containing either fetal bovine serum or pooled cord blood plasma. Morphology, proliferation, immunophenotype detected by flow cytometry and differentiation toward adipogenic and osteogenic lineages were utilized for investigating the effect of media on umbilical cord mesenchymal stem cells after 3-5 passages. Then cells were cryopreserved in media containing 10%dimethyl sulfoxide, 20%fetal bovine serum or 20%pooled cord blood plasma for at least 6 months. Viability, adhesion, proliferation, immunophenotype and osteogenic differentiation of the cells were assessed after thawing. RESULTS AND CONCLUSION:The morphology (spindle-shaped and plastic-adherent), phenotype and differentiation potential (osteogenic and adipogenic) were almost indistinguishable between cells cultured in fetal bovine serum or cord blood plasma medium, while cells grown in cord blood plasma medium demonstrated significantly higher proliferation rates than those in medium containing fetal bovine serum. After thawing, the cells maintained their adherence to the culture surface and differentiation potential to osteoblasts, but cells from cord blood plasma cryopreservation medium showed significantly better plastic attachment and produced greater cellnumbers than fetal bovine serum for the first three post-thaw passages. The results demonstrate that cord blood plasma can sever as an effective substitute to fetal bovine serum for growth, maintenance and differentiation of umbilical cord mesenchymal stem cells, and thus it wil be a safe choice for clinical-scale production of human mesenchymal stem cells.

Objective To analyze the clinical feature and pathological characteristics of oral submucous fibrosis (OSF) coexisted with oral leukoplakia (OLK) or oral lichen planus (OLP),and summarize both the common and each clinical and pathological characteristics of two kinds of diseases.Methods The clinical and pathological data of 74 patients with OSF coexisted with OLK and 57patients with OSF coexisted with OLP were retrospectively reviewed.Results Most of patients with OSF coexisted with OLK or OLP were mainly young and middle-aged male patients,and all had the habit of eating betel quid chewing.Most of them had the habit of smoking and alcohol drinking; while their limitation of mouth opening were not obvious.Patients coexisted with unilateral OLK or OLP all had a unilateral mastication of chewing betel nut;the prevalence rate of erosive OLP was lower in the patients with OSF coexisted OLP than that of OLP patients never chew betel nut.The pathology of both OSF coexisted with OLK or OLP was with the respective characteristics of OLK or OLP on the basis of OSF,and the epithelium was thickened more than atrophic.No relationship was found between the degree of epithelial hyperplasia and the severity of fibrosis in patients with OSF coexisted with OLK.Conclusions OSF coexisted with OLK and OSF coexisted with OLP were the occurrence of OLK or OLP on the basis of OSF,which were not a simple superposition of two diseases,but combination with their own characteristics of OSF coexisted with OLK or OLP.

Objective:To discuss the surgical techniques and evaluate the clinical effects of laparoscopic varicocelectomy with testicular artery preservation.Methods:In this retrospective study, we collected clinical data of 97 patients with varicocele who underwent laparoscopic varicocelectomy from January 2015 to June 2020. All operations were performed by the same experienced urologist. Conventional laparoscopic varicocelectomy without testicular artery preservation was performed in earlier 35 patients (January 2015 to December 2016), which were taken as control group. The latter 62 patients (January 2017 to June 2020) underwent laparoscopic varicocelectomy with testicular artery preservation were taken as observational group. In observational group, average age was (21.9±6.7)years, there were 47 cases on the left side, 3 cases on the right side and 12 cases bilaterally, totaling 74 sides. There were 22 sides of varicose veinsⅠ, 28 sides of varicose veinsⅡand 24 sides of varicose veins Ⅲ. Clinical manifestations such as scrotal discomfort, pain and scrotal vein masses were observed on 35 sides (47.3%), infertility was observed in 24 cases (38.7%). Average sperm density was (23.7±5.9)×10 6/ml, average sperm motility (grade a+ b) was (33.9±4.1)%. In control group, average age was (23.7±4.6) years, there were 26 cases on the left side, 2 cases on the right side, 7 cases bilaterally, totaling 42 sides. There were 10 sides of varicose veinsⅠ, 17 sides of varicose veinsⅡ, 15 sides of varicose veinsⅢ. Clinical manifestations of scrotal discomfort, pain and scrotal vein masses were observed on 19 sides (45.2%), infertility was observed in 14 cases (40.0%). Average sperm density was (22.3±6.2)×10 6/ml, average sperm motility (grade a+ b) was (32.6±4.8)%.There was no significant statistical difference in preoperative clinical data between two groups ( P>0.05). The observational group followed the procedural steps of freeing the spermatic cord, isolating the testicular artery, and ligating the spermatic vein. The testicular artery was separated by the separating forceps and the electric hook, with the separating forceps holding the spermatic cord fascia in place and the electric hook (without electricity) bluntly separating the blood vessels and lymphatic vessels in the spermatic cord. The operative time, complications, recurrence rate, improvement rate of scrotal symptoms and semen quality, spontaneous pregnancy rate of spouses within 2 years in infertile patients were compared between the two groups. Results:The mean operative time in observational group was longer than control group [(35.8±7.7)min vs.(16.5±5.5)min, P<0.001]. Occurrence of postoperative acute epididymitis was lower in observational group compared to control group [1.4% (1 side) vs. 11.9% (5 sides), P<0.05] . No testicular atrophy (0 side) occurred in observational group, however, this complication could be found in 7.1% (3 sides) of control group ( P<0.05). Improvement rate of scrotal symptoms and semen quality was higher in observational group than that in control group after operations [77.1% (27 sides) vs. 47.4% (9 sides), P<0.05; and 72.6% (45 cases) vs.51.4% (18 cases), P<0.05]. The rates of spousal natural pregnancy within 2 years in infertile patients was higher in observational group than that in control group [70.8% (17 cases) vs. 50.0% (7 cases), P<0.05]. The rates of hydrocele and scrotal edema were similar in two groups [9.5% (7 sides) vs. 9.5 (4 sides)%, P>0.05], and the recurrence rate of varicocele was similar [8.1% (6 sides) vs. 7.1% (3 sides), P>0.05), without statistically significant difference. Conclusions:Using separating forcep and electronic hook can help to separate the testicular artery when performing laparoscopic varicocelectomy. In this operation, to preserve the testicular artery can get better effects an less complications.