The coordination compound of L-hydroxyproline (Hyp)-Zn (II) was synthesized with Hyp and zinc sulfate as raw materials in water medium, coordination Synthesizing Mechanism and Antioxidant Activity of Hyp-Zn(II) coordination compound has been researched. Compared with Hyp, the infrared spectrogram of Hyp-Zn (II) coordination compound emerge a new absorption peak at 1100 cm(-1). Conclusion could be obtained that there exists a coordination effect between Hyp and ZnSO4; TG and DSC curve of Hyp and Hyp-Zn(II) coordination compound were analysed. Compared with Hyp, the peak of Hyp-Zn(II) disappear at 290 degrees C and 375 degrees C. This phenomenon confirmed the front conclusion; At the NMR graph of Hyp-Zn(II) coordination compound, the disappearance of the alpha-carboxyl-hydrogen and alpha-hydroxyl-hydrogen's peak at 3.5-3.9 ppm could indicate that combination's position of Hyp is alpha-carboxyl and alpha-hydroxyl; Structure of Hyp-Zn(II) coordination compound were exosyndrome by the Atomic Force microscopy. It is showed that centr-atom Zn(II) was surrounded by several Hyp at Hyp-Zn(II) coordination compound's phase diagram; The proportion of Hyp-Zn(H) coordination compound was determined by dialysis experiment, the proportion is 4:1; Above-mentioned determination and exosyndrome indicated that the molecular formula of Hyp-Zn (II) coordination compound is Zn(Hyp)4.H2O. The results indicated that the Hyp-Zn(II) coordination compound can inhibit hydroxyl free radicals of Zn(II), and the Percentage of Inhibition is 75.5%; the total antioxidant activities of Hyp-Zn(II) coordination compound is 80.167 u/mL, the anti-superoxide activities of Hyp-Zn (II) coordination compound is 53.19 u/mL.
Antioxidants ; chemistry ; Drug Compounding ; Hydroxyproline ; chemistry ; Zinc Sulfate ; chemistry

Objective To investigate the protective mechanism of protein kinase C(PKC)and calcium sensing receptor(CaR)in ischemia preconditioned rat hearts.Methods Using cell culture method,in vitro cultured inhibitor(IPC+CaRI).Apoptosis was detected using TUNEL and Hoechst33342 cell viability was detected by MTT,the protein expression of easpase-12,calpain and CaR in endochylema were detected using Wedtetm blot.ResultsIn I/R group nucleus was shrank,big blue,chromatin concentrated,apoptotle body appeared.Other groups haddifferent fluorescence intensity varying degree,IPC+PKCI+CaRS group had more big blue nucleus.Myocardialcell viability and apoptotic rate,I/R group[(62.99±0.65)%,(19.13±0.87)%],IPC group[(78.67±0.37)%,(14.21±0.74)%],IPC+PKCI group[(71.09±0.52)%,(20.46±0.81)%],IPC+PKCI+CaRS group(66.10±0.75)%,(24.89±1.43)%],IPC+CaRS group[(69.56±0.44)%,(21.64±0.77)%],IPC+CaRI group(85.81±0.60)%,(13.12±0.69)%],all had a difference(P＜0.05 or＜0.01)compared with C group[(100.00)%,(6.02±0. 31)%].Western blot identified that CaR expression in IPC+PKCI and IPC+CaRS,IPC+PKCI+CaRS groupswas more than that in IPC and IPC+CaRI groups;easpase-12 had more active fragment(60×103)in I/R,IPC+CaRS,IPC+PKCI+CaRS groups;ealpain expressions in I/R,IPC,IPC+PKCI,IPC+PKCI+CaRS,IPC+CaRSgroups were higher than those in C and IPC+CaRI,I/R group was the highest one,C group the second,IPC+CaRI the third.Conclusion The interaction of PKC and CaR can reduce the intracellular Ca2+ from sarcoplasmicreticulum thus provide a protection.

Objective To investigate the expression of microRNA-15b (miR-15b) in endometrial carcinoma and its effect on proliferation of endometrial carcinoma cells.Methods Eighty-seven cases of endometrial cancer tissues were selected as the research objects from patients with endometrial cancer undergoing endometrial cancer staging surgery in Xinxiang Central Hospital from February 2013 to February 2017.Another 45 cases of normal endometrial tissues from patients with uterine fibroids undergoing line hysterectomy were collected as the control.The expressions of miR-15b in endometrial carcinoma tissues and normal endometrial tissues were detected by real-time quantitative polymerase chain reaction(PCR) and relationship between the miR-15b expression and clinicopathological feature was analyzed.The HEC-1A cells were cultured and were randomly divided into miR-15b mimics group,control sequence group and blank control group.The expression of miR-15b in HEC-1A cells was detected by real-time quantitative PCR.Tetramethylazolazole blue (MTT) assay was used to detect the cell proliferation.Flow cytometry was used to detect the apoptotic rate and cell cycle.Results The relative expression levels of miR-15b in endometrial carcinoma tissues and normal endometrial tissues were 1.32 ±0.13 and 2.49 ±0.16,respectively.The relative expression level of miR-15b in endometrial carcinoma tissues was lower than that in the normal endometrial tissues (t =46.184,P ＜0.05).The relative expression level of miR-15b in endometrial carcinoma was correlated with International federation of gynecology and obstetrics staging,myometrial invasion and lymph node metastasis (P ＜ 0.05),but it was not correlated with age,histological type,differentiated degree,in filtrating lymph vessel and blood vessel or not.Compared with the blank control group and the control sequence group,the relative expression level of miR-15b in miR-15b mimics group was significantly increased (P ＜ 0.05),the cell proliferation abilities at cultured 24,48,72 and 96 h were decreased (P ＜ 0.05),while the apoptosis rate increased (P ＜0.05),the proportion of G0 + G1 phase was significantly increased,while the proportion of G2 + M phase was decreased (P ＜0.05).There was no significant difference in the relative expression level of miR-156,the cell proliferation ability at cultured 12,24,48,72,96 h,the apoptosis rate,the proportion of G0 + G1,S and G2 + M phase between the blank control group and the control sequence group(P ＜0.05).Conelusion miR-15b is low expression in endometrial carcinoma tissue.Up-regulation of miR-15b expression in endometrial carcinoma cells can inhibit cell proliferation,it may be related to block cell cycle to promote cell apoptosis.

Objective To investigate the clinical characteristics and treatment choice of patients with multiloculated pyogenic brain abscess (MLPBA).Methods The clinical data of 89 patients with pyogenic brain abscess (including 20 with MLPBA and 69 with uniloculated pyogenic brain abscess [ULPBA]) treated during the recent 21 years (1991-2011) were collected and analyzed retrospectively.Results MLPBA patients counted for 22.5％ of our patients with pyogenic brain abscess.The male-female ratio,age distribution,history duration,location of abscess,kinds of isolated microorganisms,predisposing factors and clinical manifestations of patients with MCPAB were similar to those of patients with ULPBA.The ratio of positive isolated microorganism and ratio breaking into ventricles in patients with MLPBA were significantly higher than those in patients with ULPBA (P＜0.05); and the average volume of abscess was 8.8 mL in patients with MLPBA and 13.3 mL in patients with ULPBA.A higher rate of abscess recurrence after stereotactic surgery in patients with MLPBA (26.7％) was found as compared with that in patients with ULPBA (3.2％).The mortality in patients with MLPBA was 0％ and that in patients with ULPBA was 4.3％.Conclusion MLPBA is not rare; the volume of abscess in patients with MLPBA is significantly smaller than that in patients with ULPBA,but the abscess in patients with MLPBA is significantly easier broken into the ventricles than that of ULPBA.Stereotactic operation is the first treatment choice; the prognosis for patients with MLPBA can be as good as that for patients with ULPBA,although the possibility of recurrent abscess formation after surgery is higher.

Decoction is one of the most commonly used dosage forms of traditional Chinese medicine. The stability of chemical constituents in decoction is closely related to the clinical efficacy and safety. There were few reports about the influence of metal ions in the stability of chemical constituents in traditional Chinese medicine. However, there is no evidence that metal ions in decoction water need to be controlled. In this study, 2,3,5,4'-tetrahydroxy stilbene-2-O-β-D-glucoside (THSG), one of the main constituents in Polygoni Multiflori Radix was studied. Ordinary tap water, deionized water, and water containing different metal ions were used to investigate and compare the influence on THSG. The results showed that after storage in a dark place at the room temperature for 10 days, the degradation of THSG was 7% in deionized water, while undetectable in tap water. The content of THSG could be decreased by different kinds of metal ions, and the effect was concentration-dependent. Moreover, Fe3+ and Fe2+ showed the greatest influence at the same concentration; and our study has shown that THSG decreased more than 98% in Fe and Fe2+ solutions at 500 ppm concentration. In the same time we found out p-hydroxybenzaldehyde (molecular weight: 122.036 7) and 2,3,5-trihydroxybenzaldehyde-2-O-glycoside (molecular weight: 316.079 4) were the main degradation products of THSG in tap water and water containing Cu2+, Ca2+, Zn2+, Mg2+ and Al3+. The product of THSG dimer with a water molecule was found in water containing Fe3+ and Fe2+. The above results showed that the metal ions in water could significantly influence the stability of THSG in water, indicating that the clinical efficacy and safety of decoction would be affected if the metal ions in water were not under control. It's suggested that deionized water should be used in the preparation of decoction containing Polygoni Multiflori Radix in the clinic to avoid degradation of THSG. Meanwhile, decoction prepared by tap water should be taken by patients in a short time. Our investigation provides important information and reference about the influence of metal ions on the stability of decoctions in other traditional Chinese medicine that have unstable groups such as hydroxyls and unsaturated bonds, etc.
Drugs, Chinese Herbal ; chemistry ; Glucosides ; chemistry ; Ions ; chemistry ; Metals ; chemistry ; Plant Roots ; chemistry ; Polygonaceae ; chemistry ; Stilbenes ; chemistry

OBJECTIVETo explore the value of serial magnetic resonance imaging (MRI) in the diagnosis of cerebral abscess caused by Candida albicans in premature infants.

METHODSThe clinical data of 8 premature infants with central nervous system invasive fungal infection (IFI) were retrospectively studied. The infants underwent serial cerebral MRI scans (T1WI, T2WI and DWI).

RESULTSCandida albicans was found as pathogen in all of the 8 infants. Seven infants presented with cerebral abscess and 4 infants had concurrent meningitis. Widespread involvements were found on MRI, particular in white matter area of subcortex, centrum semiovale and periventricle. The MR imaging findings in 4 infants within 11 days after IFI showed diffusive and multiple miliary nodes and hyperintense signals on DWI, but obvious changes were not found on T1WI and T2WI. The most striking hyperintense signals on T1WI and hypointense signals on T2WI appeared between 2 and 4 weeks after IFI, and some nodes of rim-like hyperintensity and marked contrast enhancement were also noted on T1WI. Smaller and smaller changes of the miliary foci were seen on T1WI and T2WI 4 weeks later. Delayed myelination and thinner corpus callous were shown in 2 patients at three months.

CONCLUSIONSMRI-DWI and serial MRIs are helpful in the early diagnosis of candida cerebral abscess and the evaluation of treatment outcome in premature infants.

Brain Abscess ; diagnosis ; Candidiasis, Invasive ; diagnosis ; Female ; Humans ; Infant, Newborn ; Infant, Premature ; Magnetic Resonance Imaging ; methods ; Male

Sintilimab is an anti-programmed cell death receptor-1 antibody. The phase III clinical trial ORIENT-12 confirmed the safety of sintilimab combined with pemetrexed/platinum in the treatment of advanced squamous non-small cell lung cancer. Skin reactions are the most commonly reported adverse events of immune checkpoint inhibitors and are rarely severe.We describe a case of toxic epidermal necrolysis related to sintilimab in an elderly oncologic patient. 3 weeks after immunotherapy, the patient developed an extensive rash and diffuse itching, rapidly evolving into macules, blisters, bullae and erosions. Causal evaluation was performed based on the algorithm of drug causality for epidermal necrolysis and national Food and Drug Administration qualitative analysis. The patient responded to high-dose glucocorticosteroid and supportive therapy, alongside with local wound care. If immune checkpoint inhibitors need to be extrapolated clinically, strictly following evidence-based research, promptly detecting and treating adverse reactions is crucial.

Objective To study the effects of scutellarin on endometrial carcinoma Ishikawa cells,and analyze the correlation between the effects and phosphatidyl inositol 3 kinase(PI3 K)/protein kinase B(Akt)signaling pathway.Methods Ishikawa cells were divided into blank group and experimental-L,-M,-H groups,each group was treated with complete medium containing 0,5,10 and 20 μmol·L-1 scutellarin,respectively.Cell viability,clonal formation ability,metastatic ability,invasion,apoptosis and protein expression were detected by cell counting kit-8(CCK-8),plate cloning,scratch,Transwell,flow cytometry and Western blot assay,respectively.Results The cell viability of blank group and experimental-L,-M,-H groups at 48 h were(100.00±0.00)％,(78.51±7.54)％,(52.93±4.91)％and(41.62±5.33)％;the clone formation rate were(100.00±0.00)％,(56.59±6.34)％,(35.23±4.62)％and(10.66±1.91)％;the scratch healing rate were(53.70±6.19)％,(40.59±4.75)％,(34.25±4.40)％and(15.78±2.14)％;the number of invasive cells were 189.70±14.06,106.82±12.67,84.37±8.13 and 53.74±6.78;the relative expression levels of matrixmetallo proteinase-2 were 0.96±0.10,0.73±0.06,0.68±0.08 and 0.42±0.05;tissue inhibitor of MMP-1(TIMP-1)were 0.35±0.04,0.51±0.05,0.74±0.08 and 1.20±0.14;the apoptosis rates were(4.21±0.53)％,(15.83±2.42)％,(22.72±3.85)％and(34.41±4.67)％;the relative expression levels of B cell lymphoma-2(Bcl-2)were 1.38±0.15,0.90±0.10,0.56±0.06 and 0.24±0.03;Bcl-2 associated X protein(Bax)were 0.31±0.02,0.44±0.04,0.93±0.11 and 1.26±0.14;the relative expression levels of PI3Kp85 were 0.67±0.05,0.42±0.04,0.36±0.02 and 0.28±0.03;phosphorylated Akt(p-Akt)were 0.78±0.06,0.53±0.04,0.46±0.05 and 0.42±0.03.Compared with the blank group,the above indexes in the experimental-L,-M,-H groups were statistically significant(P＜0.05 or P＜0.01).Conclusion Scutellarin can inhibit the proliferation,metastatic ability and invasion of endometrial carcinoma Ishikawa cells and promote apoptosis by regulating PI3K/Akt signaling pathway.

OBJECTIVETo evaluate the long-term results of combination treatment with Gamma Knife radiosurgery and stereotactic intracavitary brachytherapy for mixed cystic and solid craniopharyngiomas.

METHODSSixty-seven consecutive patients with mixed cystic and solid craniopharyngioma treated by Gamma Knife radiosurgery combined with stereotactic brachytherapy from October 1996 to December 2005 were selected for retrospective analysis. The inclusion criterion was the patients who survived for at least 5 years after combined treatment. There were 39 male and 28 female patients and the mean age was 31.5 years (ranged from 3 to 70 years). The clinical evaluations including neurological, neuro-ophthalmological, and neuro-endocrinological examinations, assessment of comprehensive quality of life and neuroimaging examinations were performed periodically. The actuarial survival rates and the mean survival time were calculated by using Kaplan-Meier product limit method. The rates were compared using the χ(2) test.

RESULTSFollow-up period varied from 60 to 168 months, with an average of 114 months. The tumor response rate gained from combination treatment with Gamma Knife radiosurgery and stereotactic intracavitary brachytherapy for predominantly solid and cystic craniopharyngiomas were 10/12 and 90.9% respectively, and 89.6% in all. Mean survival after combination treatment was (110 ± 9) months. The mean survival of patients with predominantly solid and cystic craniopharyngioma were (97 ± 12) months and (120 ± 14) months and the actuarial 10-year survival rates were 7/12 and 69.1%. There was no statistics difference in tumor response rate and 10-year survival rate between 2 groups of patients with predominantly solid and cystic craniopharyngioma. The actuarial 5-, 6-, 7-, 8-, 9- and 10-year survival rates were 90.5%, 85.7%, 83.3%, 76.4%, 69.4% and 60.0% respectively. The decreased visual acuity had improved in 68.3% at 6 months postoperatively and in 70.0% in long term results. Comprehensive quality of life in long term follow-up of 67 patients was excellent in 28 cases(41.8%), good in 19 cases(28.4%), fair in 17 cases(25.4%) and poor in 3 cases(4.5%), respectively. The side effects that occurred 6 to 12 months after treatment were worsening of visual acuity (4 patients), dysfunction of hypothalam (4 patients) and third nerve palsy was found in 1 patents 5 years after treatment. The rate of complications was 13.4%.

CONCLUSIONCombination treatment with Gamma Knife radiosurgery and stereotactic intracavitary brachytherapy is highly effective and safety in the treatment of mixed cystic and solid craniopharyngiomas.

Adolescent ; Adult ; Aged ; Child ; Child, Preschool ; Combined Modality Therapy ; Craniopharyngioma ; surgery ; Female ; Follow-Up Studies ; Humans ; Imaging, Three-Dimensional ; Male ; Middle Aged ; Pituitary Neoplasms ; surgery ; Radiosurgery ; Retrospective Studies ; Survival Rate ; Treatment Outcome ; Young Adult

The surface layer of the sclerotia of Poria cocos, named Fu-Ling-Pi, is used as a diuretic in traditional Chinese medicine to treat edema and urinary dysfunction. Recent studies have showed that the triterpenes (lanostane and 3,4-secolanostane skeletons) and polysaccharides (beta-pachyman) are the main components of Fu-Ling-Pi and they exhibited various biological activities, such as anti-tumor, antibacterial and antioxidant, etc. This review was focused on the chemistry, pharmacology, and clinical uses of this drug and it may provide scientific foundation for further development and utilization of Fulingpi.
Animals ; Drug Therapy ; Drugs, Chinese Herbal ; chemistry ; pharmacology ; Humans ; Molecular Structure ; Poria ; chemistry ; Wolfiporia