Breast Neoplasms ; chemistry ; genetics ; Chromogenic Compounds ; Female ; Genes, erbB-2 ; Humans ; In Situ Hybridization ; methods ; Receptor, ErbB-2 ; analysis

Adult ; Antineoplastic Agents ; therapeutic use ; Carcinoembryonic Antigen ; metabolism ; Carcinoma, Signet Ring Cell ; drug therapy ; metabolism ; pathology ; surgery ; Cell Transformation, Neoplastic ; pathology ; Cisplatin ; therapeutic use ; Female ; Humans ; Hysterectomy ; Keratin-20 ; metabolism ; Ovarian Neoplasms ; drug therapy ; metabolism ; pathology ; surgery ; Teratoma ; drug therapy ; metabolism ; pathology ; surgery

Mitochondria play a key role in cell metabolism. In addition to synthesizing ATP, they also participate in many physiological and pathological processes, including apoptosis, inflammation, oxidative stress, neuronal disease, tumor development, and aging. Most gene transcription of mitochondrial proteins occurs in the nucleus, so the biogenesis of mitochondria and the maintenance of mitochondrial homeostasis mainly depend on the expression of nuclear genes (nDNA) and mitochondria-nucleus interactions. Conversely, mitochondria can affect the expression of nuclear genes through nuclear transcription factors, a process called mitochondrial retrograde signaling. This review summarizes the research progress on mitochondria-nucleus retrograde signaling and its regulation, including the ways by which mitochondria regulate nuclear genes and affect biological processes, and discusses new strategies for the treatment of diseases that involve mitochondrial retrograde signaling in disease pathology.

To improve ethanol production in Saccharomyces cerevisiae,an integration plasmid pUPGKAT with PGK promoter(phosphoglycerate kinase promoter),adh1 gene(the coding sequences of alcohol dehydrogenaseⅠ) and CYC1 terminator(Cytochrome c transcription terminator) was constructed.Firstly,a fusion fragment composed of PGK promoter and adh1 gene was generated by over lap extension PCR and ligated into pUG6 resulting in plasmid pUPGKA.Subsequently,CYC1 termi nator was amplified from pSH65 by PCR and ligated to the SpeⅠand SacⅡrestriction site of pUPGKA.To integrate PGK-adh1-CYC1 into S.cerevisiae genome,pUPGKAT was digested by TthⅢⅠand the lin-earized plasmid was used to transform S.cerevisiae YS2-△adh2(adh2 disrupted strain) by lithium acetate method.The yeast mutant YS2-△adh2-adh1 which had the adh1 gene placed under the PGK promoter and harbored the adh2 deletion was constructed.Anaerobic fermentation showed overexpression of adh1 by PGK promoter resulted in a 8.84% higher ethanol production compared to YS2-△adh2.

Acyl carrier protein is an essential component involved in the biosynthesis of DHA(Docosahexaenoic Acid) via PKS(Polyketide synthase) pathway,which takes the growing acyl chain from one enzyme to another.One cDNA clone,with high homology of ACP,was isolated from Schizochytrium sp.FJU-512 cDNA library.The deduced amino acid sequence contained 142 residues with isoelectric point of 5.04 and had the 4'-phosphopantetheine prosthetic(4'-PP) binding site.The target fragment was digested with BamHⅠ/HindⅢand inserted into the expression vector pET-30a resulting in the plasmid pET-30a/acp.The recombinant vector was transformed into E.coli BL21(DE3) and induced by IPTG.SDS-PAGE analysis demonstrated that ACP was effectively expressed.

OBJECTIVETo study the hepatoprotective effect of the aerial parts and the roots of G. scabra on cute liver injury models.

METHODAcute liver injury models were induced by CCl4, TAA and D-GlanN in mice, and the levels of serum enzyme ALT, AST and AKP on acute liver injury mice with extracts of theaerial parts and the roots of G. scabra were determined.

RESULTDifferent dosages of theaerial part extract could significantly reduce the levels of serum enzyme ALT, AST and AKP (P < 0.05) on CCl4 and TAA model mice, but the serum enzymes reduction of D-GlanN model mice was not remarkably.

CONCLUSIONThe methanolic extracts of the aerial parts and the roots of G. scabra both have certain hepatoprotective effects on acute liver injury models, and so the aerial parts of G. scabra can be used as the succedaneumm of G. scabra roots.

Alanine Transaminase ; blood ; Alkaline Phosphatase ; blood ; Animals ; Aspartate Aminotransferases ; blood ; Carbon Tetrachloride Poisoning ; Chemical and Drug Induced Liver Injury ; enzymology ; etiology ; Drugs, Chinese Herbal ; isolation & purification ; pharmacology ; Female ; Galactosamine ; Gentiana ; chemistry ; Male ; Mice ; Plant Components, Aerial ; chemistry ; Plant Roots ; chemistry ; Plants, Medicinal ; chemistry ; Random Allocation ; Thioacetamide

To simplify the macrocyclic fragment and to modify the zinc binding group of the natural product apicidin, two series of S-hexyl (heptyl) ethanethioate derivatives were designed and synthesized. Twenty-six compounds were synthesized and confirmed with 1H NMR, IR, MS and HR-MS spectrum, which were not reported. Take vorinostat as control, their antiporliferative activities against cancer cell lines, MCF-7 and HL-60, were tested with MTT assay or trypan blue staining method. Generally in both series it was found that, the chiral carbon atom at 7 position is not necessary, compounds II-1, II-3, II-6 and II-13 showed good activity on HL-60 cells in vitro, with the IC50 values less than 10 micromol x L(-1). II-7 and II-8 showed stronger activity against MCF-7 than Vorinostat, with the IC50 of 3.19 and 6.29 micromol x L(-1), respectively.

AIM: To evaluate the safety, efficacy and stability of posterior chamber phakic intraocular lens ( ICL ) implanation and clear lens extraction for the correction of high myopia.
METHODS: The study enrolled 56 cases ( 100 eyes ) of high myopia. Group I comprised 32 cases ( 58 eyes ) receiving ICL implantation and Group II comprised 24 cases (42 eyes) undergoing clear lens extraction. In this study, we evaluated the two groups of subject's the visual and refractive results, intraocular pressure ( IOP ) , endothelial cell density ( ECD ) , anterior chamber depth ( ACD) , lens transparency, the surgical complications as well as visual adverse symptoms before and after surgery.
RESULTS: The postoperative subjects in group I and group II were followed, uncorrected vision acuity ( UCVA)>0. 5 were 69. 0% in group I and 71. 4% in group II after 3mo. UCVA>0. 5 were 72. 4% in group I and 73. 8% in group II after 1a. Predictability of the manifest spherical equivalent refraction within±1. 00D was achieved in 62. 1%of eyes in group I and 57. 1% in group II after 1a. The central vault of the ICL ( distance from posterior surface of ICL to the crystalline lens ) measured with anterior segment optical coherence tomography ( AS-OCT ) was 0. 35-0. 54 (0. 40±0. 16) mm. Twelve point one percent of eyes in group I and 7. 1% of eyes in group II had transient mild increase in IOP. Here were statistically significant differences between preoperative and postoperative ECD (P<0. 001 ). Complications of surgery: 1 eye had ICL spontaneous rotation, 2 eyes had anterior subcapsular cataract, 4 eyes noticed halos around lights at night in group I. Three eyes had posterior capsule mild opacification, 3 eyes noticed halos around lights at night, 12 eyes had difficulty in near vision in group II.
CONCLUSION: ICL implantation and clear lens extraction are effective, safe and predictable surgical option for the management of high myopia. No severe complications occurred, but its long time effect and safety still need more time to prove.

Objective To explore application of the bolus-triggered technique and optimal match between collimation and pitch of MSCTA in intracranial and cervical arteries.Methods(1)The small-dose tests were performed in 19 healthy volunteers and the theoretical threshold was obtained by the time-density curve.(2)forty healthy volunteers were divided randomly into two groups and the scanning parameters were as follows.Group A:collimation 1.0 mm,pitch 1.750. Group B:collimation 2.5 mm,pitch 0.625. Statistical significance was determined with the X~2 test and t test(?=0.05).Results(1)In 19 volunteers,CT value 4 seconds before the peak was 75 HU,the CT value at the beginning segment of the carotid artery and the C_1 segment of internal carotid artery was in accordance with the standard.(2)Image quality ofⅠ,Ⅱgrades artery structures of group B was superior to that of group A.Image quality ofⅢ,Ⅴ grades artery structures of group A was superior to that of group B.Conclusions(1)MSCTA in intracranial and cervical arteries can display systematically the cerebral and carotid arteries.(2)The bolus-triggered technique can improve the image quality of the target vessels.The image quality of the MSCTA of intracranial and cervical arteries is better with the threshold of 75 HU on the basis of 3.5 ml/s injection rate.(3)On the basis of the same other parameters,the optimal scanning parameters are a collimation of 1.0 mm with a pitch of 1.750.

Objective:To investigate the therapeutic efficacy of double-J catheter in treatment of renal tuberculosis(TB)and in rescuing the structure and function of the kidney.Methods:Thirty-four patients with renal TB(22 combined with single side hydronephrosis)were divided into 2 groups randomly.Group A were treated with antituberculous therapy and group B with antituberculous therapy combined with pre-treatment with double-J catheter.All 34 patients were followed up for 3 months and were re-examined.Results:The results of B ultrasound,intravenous urogram(IVU),CT and isotope nephrogram were comparable between the 2 groups before treatment,and the results were significantly different between the two groups after 3 months'drug treatment(P