Objective: To assess the diagnostic value of combined staining of 34βE12 and α-methylacyl-coenzyme A racemase (34βE12 /AMACR) by comparing it with the values of 34βE12 and AMACR staining separately. Methods: Totally 31 prostate specimens (4 μm thickness), including 18 prostate cancer (PCa) specimens, 10 benign prostatic hyperplasia (BPH) specimens, and 3 normal prostate specimens, were subjected to 34βE12 and AMACR staining separately and a combined staining of both. The results of the 3 staining methods were compared. Results: The results of 34βE12 single staining and combined staining were negative in all 18 PCa specimens and were positive in all BPH and normal specimens. Single AMACR staining was positive in 88.9% PCa specimens. In the combined staining 94.4% PCa specimens were positively for AMACR. There was an excellent agreement between the AMACR staining profiles in the combined staining and in single AMACR staining. Conclusion: Combined 34βE12/AMACR staining possesses certain diagnostic value for PCa, especially when the sample size is small and the lesions are limited or small.

Purpose　To study the effects of trihexyphenidyl (THP) on levels of monoamine neurotransmitters in the cerebral cortex after subarachnoid hemorrhage (SAH).　Methods　SAH model of rats were used,the levels of norepinephrine (NE),dopamine(DA),5-hydroxytrypatamine (5?HT) and hydroxyindoleacetic acid (5?HIAA) were measured by flurospectrophotometry.　Results　There was an extensive increase in levels of NE (P<0.01),5?HT (P<0.01) and 5?HIAA (P<0.01) in the cerebral cortex after SAH,DA had a tendency to increase without significance.The increase in levels of NE (P<0.01),5?HT (P<0.01) and 5?HIAA (P<0.05) in the cerebral cortex after SAH could be effectively inhibited by THP.　Conclusions　There will be a remarkable increase in levels of NE,5HT and 5HIAA in the cerebral cortex after SAH,THP could significantly ameliorate the metabolic disorder of NE and 5HT after SAH

Objective To explore the surgical procedures and effects for recurrent scalp dermatofibrosarcoma protuberans (DFSP).Methods Retrospective review was conducted in 7 scalp recurrent DFSP cases in the past 3 years.Intraoperative frozen section analysis of surgical margins was performed.Wide local excision with margins of 3 cm or more was applied,and excision of the skull external lamina or the entire layer of the cranial bones was performed once the skulls under the tumors were invaded.Frozen section analysis was again performed on all the margins.Secondary wound was repaired with local skin flap or fascial pedicled flaps.Surgically removed tumor was paraffin-embedded for HE-staining and immunohistochemical analysis.Results All of 7 tumor specimens were proved recurrent DFSP with histologic findings of intraoperation or postoperation.7 patients were all performed with wide local excision with margins of 3 cm or more,also with skull excision (5 cases with excision of skull external lamina and 2 cases with excision of the entire layer of skull).Negative margins were confirmed with intraoperative frozen sections or postoperative paraffin-embedded sections analysis were confirmed.Immunohistochemical analysis demonstrated that Ki-67 was all positive and CD34 was partially positive in 7 cases.No tumor recurrence or metastasis had been observed in any of our patients after a median follow-up duration of 17 months (range 15-41).Conclusions Wide local excision together with the skull invaded by tumors completely is effective surgical treatments for recurrent scalp DFSP; Use of scalp transferring technique could improve wound repair after complete tumor excision.

By the breeding model of physics mutagenests (60Co,UV light) and re-strong in the body of insects, We obtained a Bt strain Bt99985 with high insecticidal activity. The shake flask and 40t tank fermentation tests showed that, this strain showed special activity against Spodoptera exjgua, Comparing with original Bt strain: 93005, CK strain: HD-1-580 and GC-91, the value of potency increased respectively by 429%, 655% and 114% in shake flask test. Comparing with GC-91, the value of potency increased by 180% in 40t tank fermentation test.

Fourteen compounds were isolated from the ethyl acetate fraction of 90% EtOH extracts of the dried fruits of Alpinia oxyphylla by silica gel, MCI, RP-18, Sephadex LH-20, TLC and semi-preparative HPLC column chromatography. Their structures were identified by HR-ESI-MS, UV, IR, NMR, ECD and X ray single crystal diffraction spectroscopic data as: (2R,5R,7R,10S)-2,7-dihydroxyl-eudesmane-3(4),11(12)-diene (1), α-rotunol (2), diketone I (3), (1S,4S,5R,7S)-1-hydroxyl-eremophilane-9(10),11(12)-diene-8-one (4), cyperusol A₁ (5), (6R,9S,10S)-10-hydroxyl-11,12,13-trinor-cadinane-4(5)-ene-3-one (6), (2E,4E)-6-hydroxy-2,6-dimethylhepta-2,4-dienal (7), oxyphyllacinol (8), yakuchinone A (9), (5R)-5-hydroxy-1,7-diphenylhept-3-heptanone (10), (5S)-5-hydroxy-7-(4″-hydroxyphenyl)-1-phenylhept-3-heptanone (11), (5S)-5-hydroxy-7-(4″-hydroxyl-3″-methoxyphenyl)-1-phenyl-3-heptanone (12), 7-(4″-hydroxy-3″-methoxyphenyl)-1-phenyl-3,5-heptadione (13), bis-(2-ethylhexyl) terephthalate (14). Compounds 1-6 were sesquiterpenoids in which compound 1 is a new eudesmane sesquiterpenoid and compound 7 was a monoterpenoid. Compounds 8-13 were diarylheptanoids, and compounds 2-6 and 14 were isolated from A.oxyphylla for the first time. The experiments on H₂O₂ induced SH-SY5Y cells showed that compounds 2, 6, 7, 12 and 13 had neuroprotective effects at low and medium concentrations. In particular, compound 6 showed obvious neuroprotective effect at low, medium and high concentrations whose cell viability was higher than that of the positive control.

The 3-hydroxy-3-methylglutaryl-CoA reductase (HMGR) catalyzes the conversion of HMG-CoA to mevalonate in mavalonic acid pathway, which is the first committed step for isoprenoid biosynthesis in plants. However, it still remains unclear whether HGMR gene plays a role in the isoprenoid biosynthesis in Dendrobium officinale, an endangered epiphytic orchid species. In the present study, a HMGR encoding gene, designed as DoHMGR1 (GenBank accession JX272632), was identified from D. officinale using the reverse transcription polymerase chain reaction (RT-PCR) and rapid amplification of cDNA ends (RACE) methods, for the first time. The full length cDNA of DoHMGR1 was 2 071 bp in length and encoded a 562-aa protein with a molecular weight of 59.73 kD and an isoelectric point (pI) of 6.18. The deduced DoHMGR1 protein, like other HMGR proteins, constituted four conserved domains (63-561, 147-551, 268-383 and 124-541) and two transmembrane motifs (42-64 and 85-107). Multiple sequence alignment and phylogenetic analyses demonstrated that DoHMGR1 had high identity (67%-89%) to a number of HMGR genes from various plants and was closely related to Vanda hybrid cultivar, rice and maize monocots. Real time quantitative PCR (qPCR) analysis revealed that DoHMGR1 was expressed in the three included organs. The transcripts were the most abundant in the roots with 2.13 fold over that in the leaves, followed by that in the stems with 1.98 fold. Molecular characterization of DoHMGR1 will be useful for further functional elucidation of the gene involving in isoprenoid biosynthesis pathway in D. officinale.
Base Sequence ; Cloning, Molecular ; DNA, Complementary ; genetics ; Dendrobium ; enzymology ; genetics ; Gene Expression Regulation, Plant ; Hydroxymethylglutaryl CoA Reductases ; genetics ; metabolism ; Molecular Weight ; Phylogeny ; Plant Leaves ; enzymology ; genetics ; Plant Roots ; enzymology ; genetics ; Plant Stems ; enzymology ; genetics ; Plants, Medicinal ; enzymology ; genetics ; Sequence Alignment ; Sequence Homology, Amino Acid

Glucose was transported by the large number of hexose transporters in yeast cells. There were 18 hexose transporter genes had been identified in Saccharomyces cerevisiae. However,as an excellent expression system,there was no information of these genes had been reported in Pichia pastoris. Based on high homologous recombination efficiency in yeast,we chose G418 resistance for screening,200 bp were cloned from the up and down sequences of HXT1 ORF respectively,then ligated to the 5′ and 3′ end of G418 resis-tance gene for recombination. After electroporation of GS115 spheroplast and screened through different G418 concentration plates,finally we obtained one HXT1 gene deletion mutant named GS115?HXT1. The growth rate and glucose consumption of this mutant were both lower than the wide type.

The Bcl-2 family of proteins play a central role in the control of apoptosis, a fundamental process for both human health and disease, by mitochondrial pathway. PUMA(p53 up-regulated modulator of apoptosis protein) is one of BH3-only members of Bcl-2 family , its function is to promote cell apoptosis. To obtain BH3 death domain peptide of PUMA and detect its biological activity, the synthesized double-stranded oligomeric nucleotide encoding PUMA-BH3 peptide was cloned into expression vector pTYB2,thus generating a construct of pTYB2-PUMA-BH3 which expressed PUMA-BH3-intein-chitin binding domain fusion protein. Then the recombinant plasmid was transformed into E.coli BL-21 (DE3) and fusion protein was expressed under induction by IPTG. The soluble PUMA-BH3 peptide was purified from chitin affinity chromatography by DTT reduction. Through measuring mitochondria viability(MTT),mitochondria permeability transition(MPT) and the translocation of cytochrome c(Cyt c ) assayed by western blotting, the biological pro-apoptotic activity of PUMA-BH3 peptide was studied. The PUMA-BH3 peptide has the effects on decreasing the mitochondria viability remarkably , inducing mitochondrial swelling and promoting Cyt c releasing from isolated mitochodria . Mitochondrial swelling and the release of Cyt c induced by PUMA-BH3 peptide concerned with the opening of MPT,which can be improved by cyclosporine A(CsA).These results indicated that recombinant PUMA-BH3 peptide might possess pro-apoptosis activity and paved a reasonable way for the study of new apoptosis regulators.

By analysing the anatomy of upper cervical segment, the atlas - axis relation in plain X - ray film in 3-1 cases revealed that the joint displacement is one of the important causes for vertebral artery type or sympathetic type cervical spondylopathy. The main manifestations for diagnosing atlas - axis displacement included headache, dizziness, unilateral protrusion and tenderness of the affected vertebra, displacement of tooth protrusion up to 1 mm at anterior mouth -open positions. The most effective therapy was accurate and dexterousmanipulation for reduction.