Catheter Ablation ; methods ; Humans ; Hypertension ; surgery ; Renal Artery ; Sympathectomy ; methods

Apoptosis ; drug effects ; Asparaginase ; pharmacology ; HL-60 Cells ; Humans ; K562 Cells ; U937 Cells

Objective To identify the species classification of an ornamental Planorbidae from a flower market in Shanghai and analyze its potential distribution in China. Methods In August 2013,six freshwater snail specimens were collected from the Wanshang flower market. The species was identified by morphology and molecular biology. An ecological niche model was constructed based on the native geographic presence occurrence data,and projected onto the whole of China to predict the poten?tial distribution. Results Their shell external morphology suggested that the specimens belonged to Planorbella trivolvis(Say 1817)of Planorbidae,which is native in North America. The sequence data of a fragment of the mitochondrial cytochrome c oxi?dase subunit I(COI)confirmed its identification. A total of 2 294 georeferenced occurrence points in North America were car?ried out from the Global Biodiversity Information Facility databases and 614 records with coordinates were used to produce a North American native niche model by a maximum entropy method(Maxent). The projection on China results suggested high probabilities of occurrence mostly in Henan Province and its borderland with nearby provinces. Conclusions P. trivolvis is sim?ilarly with Biomphalaria species from shell morphology. It is the first records of the species in China,and the field dispersal is not clear.

Objective To evaluate the combined effects of photodynamic therapy (PDT) with PSD-007 and cytarabine (Ara-c) on human acute promyelocyte leukemia cell HL-60.Methods The experiments were divided into four groups:control group,PDT-only groups (PDT 1-4 groups:the combination of PSD-007 concentrations (5 μg/ml and 7.5 μg/ml) and the energy density of laser (EDL) (1.2 J/cm2 and 2.4 J/cm2),Ara-c-only groups (Ara-c A group:0.3μg/ml,Ara-c B group:1.2μg/ml) and combination groups (the pair-wise combinations of the PDT doses and Ara-c doses above).All combination groups were treated with three treating methods,including P24A (the cells were treated with PDT for 24 h,and then cocultured with Ara-c for another 24 h),A24P (treated with Ara-c for 24 h before PDT,and then cocultured with PDT for 24 h),and PA24 (treated with the Ara-c and PDT for 24 h).CCK-8 method was used to test the cell viability,and the combined effect was analyzed using King formula.The changes of cell cycles were analyzed using flow cytometry.Results In the case of low-dose PDT,the combination groups showed coordinated effect with all three methods,whereas in the case of high-dose PDT,they showed additive or coordinated effect in P24A and A24P,but it showed antagonistic effect in the schedule of PA24.Cell cycles were inhibited to G0/G1 phase by both PDT and Ara-c.Conclusions Coordinated effects could be found when HL-60 cells were treated with the combination of Ara-c and PDT.The effects depended on the dose of Ara-c and PDT and the operation schedules.The effects at low dose were more obvious than that of high dose,and allowing a 24 h period in between the addition of PDT and Ara-c also promoted the effects.

Objective To explore the relationship between the expression of chemokines and their receptors in the maternal-fetal interface and the pathogenesis of unexplained recurrent spontaneous abortion (URSA). Methods 8-10 weeks CBA/J female mice were mated with DBA/2 and BALB/c male mice at the ratio of 2∶1 to establish the model of normal pregnant mice (CBA/J × BALB/c) and URSA mice (CBA/J × DBA/2). Sixty mice were divided into 6 groups, with ten in each group. The mice in the normal unpregnancy group were executed for endometrial tissues; the mice in the embryonic implantation normal pregnancy group were executed for endometrial tissues at the sixth day of gestation; the mice in the embryonic development normal pregnancy group were executed for decidua and chorionic tissues at the fourteenth day of gestation. While, the mice in the embryonic implantation URSA group were executed for endometrial tissues at the sixth day of gestation;the mice in the pre-abortion URSA group were executed for decidua and chorionic tissues at the ninth day of gestation;the mice in the post-abortion URSA group were executed for decidua and chorionic tissues at the fourteenth day of gestation. The chemokines and their receptors in different tissues of the mice were determined by western blot, including the protein expression of stromal cell derived factor (CXCL12), monocyte chemotactic protein 1 (CCL2), regulated upon activation normal T cell expressed and secreted(RANTES) and their receptor CXCR4, CCR2, CCR5 in maternal-fetal interface. Results (1) The protein expression of CXCL12 and CXCR4, CCL2 and CCR2, RANTES and CCR5 in endometrial tissues of the normal unpregnant group were 0.13±0.04 and 0.18±0.09, 0.057±0.023 and 0.39± 0.08, 0.034 ± 0.012 and 0.22 ± 0.05, respectively. They were 0.35 ± 0.09 and 0.93 ± 0.15, 0.349 ± 0.056 and 0.91 ± 0.15, 0.336 ± 0.089 and 0.44 ± 0.05 in endometrial tissues in the embryonic implantation normal pregnancy group;and were 0.62±0.15 and 1.23±0.28, 0.283±0.051 and 0.55±0.09, 0.225±0.065 and 0.35± 0.07 in decidua tissues in the embryonic development normal pregnancy group. The protein expression of chemokines and their receptors in endometrial tissues in the embryonic implantation normal pregnancy group and in decidua tissues in the embryonic development normal pregnancy group were higher than those in the normal unpregnancy group, with statistically significant difference(P<0.05). Compared with the embryonic implantation normal pregnancy group, CXCL12 and CXCR4 in decidual tissues in the embryonic development normal pregnancy group were significantly higher(P<0.05), while CCL2 and CCR2, RANTES and CCR5 were significantly lower (P<0.05). (2) Compared with the embryonic implantation normal pregnancy group, CXCL12 and CXCR4 (0.20±0.06 and 0.44±0.11) in endometrial tissues in the embryonic implantation URSA group were significantly lower (P<0.01), while CCL2 and CCR2(0.451±0.133 and 1.32± 0.20), RANTES and CCR5(0.488 ± 0.137 and 0.61 ± 0.18)were higher (P<0.05). (3) Compared with the embryonic development normal pregnancy group, CXCL12 and CXCR4 in decidual tissues of pre-abortion URSA group(0.27 ± 0.09 and 0.26 ± 0.10) , post-abortion URSA group (0.25 ± 0.08 and 0.23 ± 0.08) were significantly lower (P<0.01), while CCL2 and CCR2 (0.576±0.123 and 0.92±0.15 in the pre-abortion URSA group;0.748±0.112 and 1.56±0.34 in the post-abortion URSA group), RANTES and CCR5(0.294±0.054 and 0.59 ± 0.18 in the pre-abortion URSA group;0.363 ± 0.058 and 0.78 ± 0.14 in the post-abortion URSA group) were significantly higher(P<0.05). CCL2 and CCR2, RANTES and CCR5 in decidual tissues in the post-abortion URSA group was obviously higher than those of the pre-abortion URSA group, with statistically significant difference (P<0.05). Couclusions The accurate expression of CXCL12, CCL2, RANTES and their receptors CXCR4, CCR2, CCR5 play important roles in the embryonic implantation and development. The lower expression of CXCL12 and CXCR4 protein and higher expression of CCL2 and CCR2, RANTES and CCR5 in decidua and chorionic tissues are closely related to the pathogenesis of URSA.

Objective The report was focused on polycystic ovary syndrome(PCOS) in female adolescents related to homosexual precocious puberty,and the new awareness of its influence on long-term health of homosexual precocious girls.Methods A girl with idiopathic central precocious puberty (ICPP) but diagnosed as PCOS in adolescence was reported and the data were reviewed.Results A girl was diagnosed as ICPP when she was near 8 years old with obesity,but without hyperinsulinemia,then she received the treatment of a 3.75 mg dose gonadotropin hormone analogues (GnRHa) every 28 days.Her gonads development was under control while her growth was arrested.Growth hormone(GH) injection started at 13 months.She stopped all medications when finished GH and GnRHa treatment for 12 months and 25 months.She went to see doctors again because of no menarche after discontinuing medication for nearly 2 years.She appeared obese and acne,hirsutism,athanens negricans and purple purple striae on the skin.Hyperinsulinemia and hypertestosterone were demonstrated.Pelvic B ultrasonography showed polycystic ovary,and she was diagnosed as PCOS.She was ordered to lose weight and to take metformin.And adrenocorticotropic hormone stimulating test was done,and B ultrasonography again ruled out atypical congenital adrenal hyperplasia and tumor of adrenal gland.She got her menarche 1 month later.Twelve months after the PCOS diagnosis and treatment,she had 4 menses,her insulin level decreased,glucose tolerance and her serum testosterone level turned normal.At the same time,the form of ovarian and follicular was significantly reduced.After taking mefformin for 20 months,her height and weight did not change,her menstrual was regular every 35-40 days,each time lasting about 7 days.She was followed up.We also reviewed literatures and learnt that precocious puberty might not be a benign situation and it might have an intrinsic relation to obesity,precocious puberty and PCOS.It might be the cofactors for causing PP and PCOS that accessed luteinizing hormone(LH) secretion and disorder of hypothalamus pituitary gonad(HPG) axis except obesity with hyperinsulinemia.Reported pubertas praecox in childhood developed to PCOS at 30％ with high prevalence of obesity.GnRHa suppressive therapy might relate to PCOS and had disputation for improving final height.There were fewer investigations on adolescent PCOS,and no consensus guideline on it in China.Conclusions Girls with ICPP may develop to PCOS some time later.The clinical features of the reported girl and the knowledge from literatures support the hypothesis that inner relationship between the CPP and the PCOS.The LH high secretion and disorder of HPG axis may be the causes of them; LH treatment on suppressing obesity should be cautious during treatment.The benefit and risk from GnRHa treatment should be evaluated thoroughly.Further clinical research should be conducted on adolescent PCOS.

A new phenolic glycoside was isolated from the spikes of Prunella vulgaris. Its structure was elucidated as gentisic acid 5-O-beta-D-(6'-salicylyl)-glucopyranoside by spectroscopic evidence and chemical analysis.

Objective To explore the effects of low molecular weight heparin (LMWH) on the virological and pathological changes of newborn mouse liver congenitally infected with human cytomegalovirus (HCMV).Methods Sixty healthy pure line clean level BALB/c mice which were about 10 weeks old (half were female) were divided into five groups (six pairs in each group).The mice in LMWH intervention group and positive control group were intraperitoneally inoculated with 6.0 lg tissue culture infective dose50 (TCID50) of HCMV AD169; those in blank control group were intraperitoneally injected with 0.5 mL dulbecco's modified Eagles medium (DMEM) ; then all the mice were paired to mate.The pregnant mice in LMWH intervention group Ⅰ were subcutaneously injected with LMWH 1000 U/kg daily for 10 days; those in group Ⅱ were subcutaneously injected with LMWH 1000 U/kg daily for 5 days and their newborn mice were subcutaneously injected with LMWH 1000 U/kg daily for 5 days; those in group Ⅲ were subcutaneously injected with LMWH 1000 U/kg daily for 10 days in their newborn mice.All these newborn mice were sacrificed at day 10 of birth.The liver was removed for virus isolation,dry-wet weight determination,pathology examination and quantitative fluorescence-polymerase chain reaction (PCR) detection.The comparison among groups was done by analysis of variance.Results HCMV was isolated from the supernatant of liver tissue homogenate in 10-day positive control newborn mice,while HCMV was isolated in 24-day newborn mice of the other three groups of LMWH intervention.Pathology confirmed that positive control liver tissue had inflammatory changed,liver cell inflammatory swelling degeneration,vacuoles degeneration,specific HCMV inclusion body in nuclear,and portion of liver cell necrosis,while liver pathological results of LMWH intervention group showed mild liver cell inflammatory changes and slight cell inflammatory swelling degeneration,which were similar to the blank control group.The moisture of liver tissue contents in LMWH intervention group decreased more obviously than positive control group.The HCMV DNA loads in 50 mg liver tissues of LMWH intervention groups Ⅰ,Ⅱand Ⅲ were (3.26±0.43),(3.26±0.41) and (3.32±0.51) lg copy,respectively,which were significantly lower than that of positive control group [(7.38 ± 0.53) lg copy; F =314.620,P0.01],while there were no significant differences among LMWH intervention groups (P＞0.05).Conclusion LMWH intrauterine and postnatal interventions can significantly reduce HCMV DNA replication in hepatocytes,and relieve inflammatory changes in liver tissue.

Objective To compare the rehabilitation effect of free rehabilitation, the needle therapy and the hand function recovery machine combined with free rehabilitation on movement function, the feeling function as well as the movement pattern of newly stroke patients with hemiplegia. Methods 49 newly stroke patients were divided into the free rehabilitation group, the acupuncture group and the hand function recovery machinegroup, each group received corresponding intervention. The movement function, the feeling function as well as the movement pattern were compared among the three groups using blind method. Results Brunnstrom evaluation for hands feeling-movement function, the Fugl- Meyer evaluation score showed obvious progress compared to before the treatment, score of fine hand - function assessment of Carrshepherd showed no change. Two weeks after treatment,Brunnstrom evaluation for hands feeling-movement function and the Fugl - Meyer evaluation score showed no difference between the free rehabilitation group and the acupuncture group, but the hand function recovery machine group showed better results than the other two groups. One months after treatment,Brunnstrom evaluation for hands feeling-movement function was different among these groups, but not the Fugl-Meyer evaluation score, the hand function recovery machine group showed better results than the other two groups, still score of fine hand-function assessment of Carrshepherd showed no change. Conclusions Acupuncture, free rehabilitation, hand function recov - ery machine all make progress in hand function recovery for newly stroke patients with hemiplegia, but hand function recovery machine combined with free rehabilitation proved to be the best method. Its effect for hand intricate function needs to be enhanced.