2. Liquid chromatography-mass spectrometry for quantification of the anti-chemotherapeutic antibody in rat plasma
Journal of International Pharmaceutical Research 2017;44(4):359-365
Objective To establish a sensitive, accurate and reliable LC-MS method to quantify the monoclonal antibody in rat blood and preclinical pharmacokinetics study. Methods The method of selective reaction monitoring (SRM) was established by using on-the-fly orthogonal array optimization (OAO) with anti-chemotherapeutic antibody-06(ACA-06)as a model drug, and the pharmacokinetics of ACA-06 in rats was studied. The optimal signature peptide selection and mass spectrometry conditions were optimized by single LC-MS run. Two highly specific and sensitive peptides, FSGVPDR and VNSAAFPAPIEK, were identified as the signature peptides of quantification based on the OAO optimization result, which were located in the ACA-06 light chain and heavy chain complementary determining region (CDR) respectively. Results The method had good linearity in the range of 12.9~32 250 ng/ml (r20.9819-0.9946). The lower limit of quantification was 12.9 ng/ml. The intra-day precision (RSD) was less than 11.5%, the inter-day RSD was less than 6%, and the accuracy was between -4.0% and 4.3%. Conclusion In this study, LC/SRM-MS method is established for the determination of ACA-06 in rat plasma. The method is specific, accurate and sensitive and enables an accurate pharmacokinetics investigation of ACA-06 in rat plasma.
3.Genetic Polymorphisms of 21 Autosomal STR Loci of Fujian Han Population.
Hui-hui LIAN ; Wen-dong GE ; Feng LIN ; Bin LI
Journal of Forensic Medicine 2015;31(3):211-214
OBJECTIVE:
To investigate the genetic polymorphisms of 21 autosomal STR loci of Fujian Han population and evaluate the forensic application value of GlobalFiler Express kit.
METHODS:
Amplified with GlobalFiler Express kit, DNA samples were obtained from 741 unrelated individuals of Fujian Han population. The population genetics parameters of 21 autosomal STR loci were calculated.
RESULTS:
The 21 autosomal STR loci were found to be no deviation from Hardy-Weinberg equilibration (P > 0.05) and relatively abundant in high polymorphism. Heterozygosity ranged from 0.589 to 0.914, power of discrimination ranged from 0.754 to 0.992, polymorphic information content ranged from 0.520 to 0.940, and power of exclusion ranged from 0.278 to 0.825. The SE33 locus was the highest degree in polymorphism.
CONCLUSION
The 21 STR loci of GlobalFiler Express kit have high value in discrimination power and can be useful in personal identification and paternity test in Fujian Han population.
Asian People/genetics*
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DNA
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Genetics, Population
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Heterozygote
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Humans
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Microsatellite Repeats
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Paternity
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Polymorphism, Genetic
4.Pathologic features of BRCA-associated ovarian carcinoma.
Chinese Journal of Pathology 2013;42(12):846-850
Age of Onset
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Cystadenocarcinoma, Serous
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genetics
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metabolism
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pathology
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Female
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Genes, BRCA1
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Genes, BRCA2
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Humans
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Immunohistochemistry
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Neoplasm Staging
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Ovarian Neoplasms
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genetics
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metabolism
;
pathology
;
Receptors, Progesterone
;
metabolism
;
Tumor Suppressor Protein p53
;
metabolism
5.Recent advances on ovarian epithelial cancer: definition, subtypes and pathologic features.
Chinese Journal of Pathology 2013;42(9):624-628
Adenocarcinoma, Clear Cell
;
metabolism
;
pathology
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Adenocarcinoma, Mucinous
;
metabolism
;
pathology
;
Carcinoma, Endometrioid
;
metabolism
;
pathology
;
Carcinoma, Transitional Cell
;
metabolism
;
pathology
;
Cystadenocarcinoma, Serous
;
metabolism
;
pathology
;
Diagnosis, Differential
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Female
;
Humans
;
Neoplasms, Glandular and Epithelial
;
classification
;
metabolism
;
pathology
;
Ovarian Neoplasms
;
classification
;
metabolism
;
pathology
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Tumor Suppressor Protein p53
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metabolism
;
WT1 Proteins
;
metabolism
6.Whether amnion membrane preserved in Honghua injection can prevent tendon adhesion following transplanting into foot flexor tendon?
Wenhai ZHAO ; Dong YU ; Hui WEN ; Dongming HAO ; Changwei ZHAO
Chinese Journal of Tissue Engineering Research 2010;14(5):937-940
BACKGROUND: Recent studies have reported that more and more methods were used to prevent and cure tendon adhesion following tendon rupture by repairing tendinous sheath. Especially, amnion membrane is commonly used to effective prevent and cure adhesion and promote healing of biomembrane; however, the effect on tendon adhesion needs to be further studied. OBJECTIVE: To verify the efficacy of amnion membrane preserved in Honghua injection on preventing and curing tendon adhesion following transplanting into foot flexor tendon. METHODS: Bilateral foot flexor tendons of 32 healthy mature chickens were cut off. By anastomosis, amnion membrane preserved in Honghua injection was transplanted into left foot flexor tendon, considering as experimental group. Right foot flexor tendons were randomly divided into two groups: blank control group, anastomosis was performed alone; positive control group, amnion membrane not preserved in any injections was transplanted. At 4 weeks after fixation by plaster cast, sliding function of tendon was detected using biomechanics, and local samples were obtained for histopathological observation. RESULTS AND CONCLUSION: In the experimental group, broken end of left tendon was well healed; fiber tissues were formed surrounding tendon; tissue adhesion was not observed surrounding tendon. Proliferative quantity and adhesion of fiber tissues, as well as content of hydroxyproline in the experimental group were significantly less than in the blank control and positive control groups (P < 0.05, P < 0.01); total inflexion angle of articulationes digitorum pedis and slipping distance of flexor digitorum profundus tendon in the experimental group were significantly greater than in the blank control and positive control groups (P < 0.05, P < 0.01). The results indicated that amnion membrane preserved in Honghua injection might prevent tendon adhesion and effectively promote tendon healing.
7.Design, synthesis and pharmacological investigation of isoindoline derivatives as 5-HT/NE double reuptake inhibitors.
Hui WEN ; Yuan SHI ; Jing-wen DONG ; Yan-shen GUO ; Jian-Jun ZANG ; Guang-zhong YANG
Acta Pharmaceutica Sinica 2015;50(9):1148-1155
A series of isoindoline derivatives were designed, synthesized, and evaluated for their double inhibitory activities. All of them were new compounds, and their structures were confirmed by 1H NMR and HR-MS. Preliminary in vitro pharmacological tests showed that all compounds exhibited 5-HT or NE reuptake inhibition activity. Among the tested compounds, compound I-3 exhibited potent inhibitory activity against 5-HT and NE reuptake in vitro, and exhibited potent antidepressant activity in vivo. These compounds designed can be further optimized for finding more potent 5-HT/NE dual reuptake inhibitors and antidepressant candidates as well.
Antidepressive Agents
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chemical synthesis
;
chemistry
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Biological Transport
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Drug Design
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Isoindoles
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chemical synthesis
;
chemistry
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Serotonin Uptake Inhibitors
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chemical synthesis
;
chemistry
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Structure-Activity Relationship
8.Study on the rehabilitation in post-stroke patients with shoulder-hand syndrome by manipulation treatment
Fu-sheng DONG ; Yu-qing DING ; Wen-hui ZHANG ; Shizhu YAO ; Minsheng WEN ; Weijin ZHOU
Chinese Journal of Rehabilitation Theory and Practice 2002;8(3):162-163
ObjectiveTo observe the rehabilitative effect of patients with shoulder-hand syndrome after stroke by manipulation treatment. MethodsThe patients with shoulder-hand syndrome were randomly divided into two groups, manipulation group (180cases) and control group (128 cases). Patients in the manipulation group were regularly given a passive quantitative movement on shoulder, elbow and hand joints,while patients in the control group were irregularly given a passive movement or ordered to perform an autonomic movement. The signs and symptoms of patients in these two groups were not much different. The rehabilitative effects were compared 3 months later. ResultsSigns and symptoms in the manipulation groups improved much better than that of the control group. Conclusions The manipulation treatment for the post-stroke patients with shoulder-hand syndrome is the method that is simple, effective and easy to perform.
9.Effect of TRPV5 and TRPV6 channels on the biological behaviors of SW480 colon cancer cell line
Hui ZHANG ; Morong LIU ; Hui DONG ; Jingyu XU ; Rui XIE ; Guorong WEN ; Lianhua LIU
Chinese Journal of Clinical Oncology 2017;44(12):577-582
Objective:To investigate the role of TRPV5 and TRPV6 in intracellular calcium regulation and biological behaviors of SW480 colon cancer cells. Methods:qRT-PCR, Western blot, and immunocytochemistry were applied to determine the mRNA and protein ex-pression levels of TRPV5 and TRPV6 in SW480 colon cancer cell line upon treatment with TRPV5 and TRPV6 agonist, 1-25(OH)2D3, and inhibitor, CuCl2. The change of intracellular Ca2+level was examined with a confocal laser scanning microscope. Scratch test, MTT, and TUNEL assays were used to analyze the cell migration, proliferation, and apoptosis, respectively. Results:As an agonist of TRPV5 and TRPV6, 1-25(OH)2D3 significantly up-regulated the mRNA and protein expression levels of TRPV5 and TRPV6 in SW480 cell lines. On the other hand, CuCl2, being an inhibitor of TRPV5 and TRPV6, effectively down-regulated the TRPV5 and TRPV6 mRNA and protein expres-sion levels (P<0.05). The intracellular calcium concentration in SW480 cell line significantly increased upon treatment with 1-25 (OH)2D3, and significantly decreased with CuCl2 treatment (P<0.05). 1-25(OH)2D3 promoted cell proliferation and migration, and inhibit-ed apoptosis of SW480 cell in a time-and dose-dependent manner (P<0.05). However, CuCl2 significantly repressed cell proliferation and migration and induced apoptosis (P<0.05). Conclusion: TRPV5 and TRPV6 can affect the biological behaviors of colon cancer SW480 cells by regulating intracellular Ca2+level.
10.Modified Stoppa approach in treatment of bilateral pubic branch fractures.
Zheng-feng MEI ; Wen-tao LEI ; Dong-hui HUANG ; Qi-hui ZHAO ; Feng-dong ZHAO ; Shun-wu FAN
China Journal of Orthopaedics and Traumatology 2015;28(5):404-407
OBJECTIVETo investigate the feasibility and effectiveness of modified Stoppa approach in treatment of bilateral pubic fractures of pelvic.
METHODSThe therapeutic effects of 16 patients with bilateral pubic fractures treated through the modified Stoppa approach from January 2010 to January 2014 were summarized and analyzed, involved 11 males and 5 females with an average age of 40.5 years old ranging from 17 to 59 years. According to Tile classification, there were 8 patients with type A, 6 with type B and 2 with type C. For 16 pelvic fractures, the modified Stoppa approach was used exclusively 11 cases, in combination with the iliac fossa approach in 4 cases, and in combination with the posterior approach in 1 case. The operation incision length, operation time , intra-operative blood loss and postoperative complications were observed. The fracture reduction and post-operative function were assessed by Matta criteria and Majeed system respectively.
RESULTSThe incision length of the modified Stoppa approach ranged from 8 to 10 cm (averaged in 9 cm). The operation time ranged from 75 to 135 minutes (averaged in 95 minutes). The intra-operative blood loss ranged from 400 to 900 ml (averaged in 600 ml). Sixteen patients were followed up from 7 to 18 months (averaged in 12.5 months). The fractures were all healed, the fracture healing time was 2.7 to 5 months (means 3.1 months). There were no infections, ectopic ossification, screw loosening, plate breakage and lateral ventral syndrome. According to Matta criteria for pubic fracture reduction, the result was excellent in 9 cases, good in 6, fair in 1. The Majeed function scores at 6 months after operation was 85.32±8.50; the result was excellent in 8 cases, good in 6 cases, fair in 2 cases.
CONCLUSIONThe modified Stoppa approach has characteristics of convenience and directness of incisions, clear operation field, easy reduction, few complications and fast recovery , it is an ideal choice in surgical treatment of bilateral pubic fractures.
Adolescent ; Adult ; Bone Plates ; Female ; Follow-Up Studies ; Fracture Fixation, Internal ; Fractures, Bone ; surgery ; Humans ; Male ; Middle Aged ; Operative Time ; Orthopedics ; methods ; Pubic Bone ; injuries ; surgery ; Young Adult