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Yong Cui

Publications and source records attributed to Yong Cui.

At least 55 records · Page 3Linked to original sources
PubMed2004

Engagement of the prefrontal cortex in representational momentum: an fMRI study.

Behavioral studies have identified a robust phenomenon that an observer's memory of the final position of a moving target is shifted a little further in its motion direction, which is usually called representational momentum (RM). However, the neural substrates underlying RM are poorly understood. The current study measured hemodynamic responses in association with RM using functional magnetic resonance imaging (fMRI). Two experiments using block and event-related designs, respectively, were conducted in which subjects compared the orientation of a probe rectangle with the remembered orientation of the final inducing figures in a set of rotating rectangles. Both experiments showed that, relative to the control task in which behavioral data did not show RM effects, RM task induced stronger activation in the prefrontal cortex. However, no activation was found in MT/MST complex in association with RM. The fMRI results suggest that RM may not simply reflect implicit motion perception and high level cognitive mechanisms underpinned by the prefrontal cortex may be involved in the RM effect.

Adult↗
PubMed2004

Use of complementary and alternative medicine by chinese women with breast cancer.

The use of complementary and alternative medicine (CAM) has been rapidly increasing among cancer patients. The aim of this study is to evaluate the prevalence and patterns of CAM use, particularly patients' intentions and their perceived effectiveness of using Chinese herbal medicine (CHM), as well as the relations between the herbal medicine use and demographic and clinical factors among Chinese women with breast cancer. We analyzed the data from a population-based sample of 1065 breast cancer women in urban Shanghai. Patients' average age at diagnosis was 48.1 years and the median time from the initial diagnosis to the follow-up survey was 4.3 years. Overall, 98% of patients had used at least one form of CAM therapy after diagnosis of breast cancer. The most popular CAM modality was traditional Chinese medicine (86.7%), followed by the use of supplements (84.8%), physical exercises (65.5%), and support group attendance (16.6%). CHM was used by 86.4% of patients, while acupuncture was used only by 4.9% of patients. Treating cancer (81.5%) was the most common intentions of using CHM. Other cited intentions included enhancing the immune system (12%), preventing metastasis of cancer or managing other discomforts (7.9%), and lessening menopausal symptoms (4.7%). The majority of patients reported that they had benefited from the use of CHM. Patients who were younger, married, had higher education or income, received chemotherapy or radiotherapy, or had recurrence/metastasis of cancer tended to use CHM more frequently than other patients. The relations between patient characteristics and use of CHMs varied with users' intentions. Given the high prevalence of CAM use among breast cancer patients, research is urgently needed to systematically evaluate the efficacy and safety of CAM use, particularly use of herbal medicines.

Adult↗
PubMed2004

The long-term impact of medical and socio-demographic factors on the quality of life of breast cancer survivors among Chinese women.

Quality of life (QOL) has become an integral part of the modern assessment of cancer treatment in Western society. However, little is known about the QOL of Chinese breast cancer survivors. To evaluate the long-term impact of medical and socio-demographic factors on survivors' QOL, we conducted a population-based study of 1065 breast cancer survivors in Shanghai, China. The mean age at diagnosis was 48.1 years and the median survival time was 4.3 years for the study participants. The Generic Quality of Life Inventory was used to assess survivors' QOL. Multiple linear regression models were employed to analyze the associations of QOL outcomes with socio-demographic and medical factors. The results revealed that recurrence status, time since diagnosis, marital status, income and education all had an independent, significant association with overall QOL and differential domains of QOL. Age at diagnosis exhibited a dual effect on QOL, positively associated with material well-being and negatively associated with physical well-being. Stage of disease was only associated with social well-being, while the type of surgery was related to material well-being alone. No associations between QOL and chemotherapy or radiotherapy were found. Further, analyses by survival intervals suggested a domain-specific order of recovery of QOL after cancer treatment. These results fill gaps in the limited literature, and provide valuable information for physicians to target the specific needs of Chinese women with breast cancer, choose appropriate interventions at the optimal time, and develop strategies accordingly in terms of improvement of patient's QOL.

Adult↗
PubMed2004

Identification of the cylindromatosis tumor-suppressor gene responsible for multiple familial trichoepithelioma.

Multiple familial trichoepithelioma (MFT) is an autosomal dominant skin disease characterized by the presence of many small benign tumors with pilar differentiation predominantly on the face. The first locus has been previously mapped to chromosome 9p21, but no gene for MFT has been identified to date. To identify the disease gene in a large Chinese family, we initially performed linkage analysis with microsatellite markers from 9p21, but failed to confirm the linkage to this region. Previous publications showed MFT and familial cylindromatosis (FC) can occur within one family and in a single person. Therefore, we speculated that the cylindromatosis gene (CYLDI gene) responsible for FC may be related to the pathogenesis of MFT. In view of that, we genotyped all available individuals using 11 microsatellite markers spanning the CYLDI gene region at 16q12-q13. We identified the linkage of MFT to this region. Mutation analysis in the CYLDI gene detected a frameshift mutation, designated as c.2355-2358delCAGA. The study firstly identified the cylindromatosis gene responsible for MFT and showed that different mutations of the CYLDI gene can give rise to distinct clinical and histological expression such as FC and MFT.

Adolescent↗
PubMed2004

Identification of a locus for punctate palmoplantar keratodermas at chromosome 8q24.13-8q24.21.

Punctate palmoplantar keratodermas (PPK) is a rare autosomal dominant cutaneous disorder characterized by numerous hyperkeratotic papules that are irregularly distributed on the palms and soles. The genetic basis for this disease is unknown. We performed a genome-wide search in two Chinese families with punctate PPK to map the chromosome location of the responsible gene. We identified a locus at chromosome 8q24.13-8q24.21 with a cumulative maximum two-point LOD score of 5.41 at markers D8S1793 and D8S1774 (at recombination fraction theta=0.00). Haplotype analysis indicated that the disease gene is located within 9.20 cM region between markers D8S1804 and D8S1720. It is the first locus identified for the punctate PPK. This study provides a map location for isolation of a disease gene-causing punctate PPK.

Asian People↗
PubMed2003

Interlocked chiral nanotubes assembled from quintuple helices.

Homochiral helical chains were rationally synthesized from C2-symmetric 1,1-binaphthyl-6,6'-bipyridine ligands and linear metal-connecting points, Ni(acac)2. Five such homochiral helices associate in parallel to form nanotubes of 2 x 2 nm in dimensions which further intertwine to form periodically ordered, interlocked nanotubular architectures that possess nanometer-scale open channels and have high affinity for aromatic molecules. Chiral crown ethers have also been successfully incorporated into the walls of these nanotubes, which promises to lead to novel chiral zeolitic materials applicable in enantioselective processes.

Journal Article↗
PubMed2003

Hierarchical assembly of homochiral porous solids using coordination and hydrogen bonds.

A family of homochiral metal carboxylate coordination polymers have been synthesized by treating 2,2'-dihydroxy-1,1'-binaphthalene-6,6'-dicarboxylic acid (H(2)BDA) with metal salts at elevated temperatures. BDA ligands link adjacent metal centers to form 1D coordination polymeric chains using the carboxylate functionality, while the hydroxyl groups of BDA ligands form H-bonds with carboxylate oxygen atoms to link 1D coordination polymeric chains into open frameworks of higher dimensionality. We also present evidence for the important role played by H-bonds in the stabilization of open framework structures which allows for the hierarchical assembly of chiral porous solids.

Journal Article↗
PubMed2003

A mutation in the connexin 30 gene in Chinese Han patients with hidrotic ectodermal dysplasia.

BACKGROUND: hidrotic ectodermal dysplasia (HED) or Clouston syndrome is a rare autosomal dominant disorder affecting the skin and its derivatives. It is characterized by the triad of nail dystrophy, alopecia, and palmoplantar hyperkeratosis. To date, all mutations have been involving in three codons: G11R, A88V and V37E in the connexin 30 (Cx30) gene have been shown to cause this disorder. OBJECTIVE: in order to analyze the mutations of the Cx30 gene in Chinese Han patients with HED. METHODS: we collected a large Chinese HED family consisting of a total of 81 individuals including 28 HED patients (14 males and 14 females). The whole coding region of Cx30 was amplified by polymerase chain reaction and products analyzed by direct sequencing, then further confirmed at the mRNA level by RT-PCR. RESULTS: we detected a transition, 31(G-->A), leading to a missense mutation (G11R) in genomic DNAs of 18 patients, and the point mutation was not found in 16 normal individuals in this HED family and in 188 unrelated, population-match control individuals. The transcription of mutated allele was confirmed by RT-PCR of Cx30 mRNA. CONCLUSION: our data suggests that a G11R missense mutation in the Cx30 gene can cause HED in Chinese Han population and emphasizes the importance of screening for this as well as other Cx30 gene mutations in the HED.

Adult↗
PubMed2003

Association of HLA class I alleles with psoriasis vulgaris in southeastern Chinese Hans.

BACKGROUND: Predisposing genetic factors in psoriasis include associations with human leukocyte antigen (HLA). Accumulative evidence has shown that certain HLA at class I locus, especially HLA-Cw6, are associated closely with psoriasis. OBJECTIVE: To evaluate the association of HLA class I alleles with susceptibility to psoriasis in the southeastern Chinese Han population. METHODS: We performed genotype for HLA-A, -B and -C loci in 166 patients with psoriasis vulgaris by means of polymerase chain reaction with sequence-specific primers technique. The distribution of HLA allelic frequencies was further analyzed according to age of onset, i.e. under 35-y and beyond 35-y groups. These data were compared with the healthy controls of 204 unrelated Hans. RESULTS: The frequencies of HLA-A*26 (24.7% vs. 13.1%, OR=2.36, Pc<0.01), -B*13 (27.2% vs. 14.8%, OR=2.34, Pc<0.01), -B*27 (12.2% vs. 4.0%, OR=3.49, Pc<0.01) and -Cw*0602 (17.9% vs. 5.3%, OR=4.20, Pc<0.001) were significantly increased in psoriasis patients, whereas HLA-Cw*0304 frequency (4.9% vs. 13.4%, OR=0.32, Pc<0.01) was highly decreased, when compared to the controls. HLA-A*26-B*27-Cw*0602 was identified as a high-risk haplotype of HLA class I in developing psoriasis in the test. HLA-Cw*0602 was found to be strongly associated with the early-onset psoriasis (age of onset <35 y). CONCLUSION: This study demonstrated the positive associations of HLA class I markers with psoriasis vulgaris, of which HLA-Cw*0602 was the strongest susceptibility determinant for development of early-onset psoriasis, in the southeastern Chinese Han population.

Adult↗
PubMed2003

Identification of a locus for dyschromatosis symmetrica hereditaria at chromosome 1q11-1q21.

Dyschromatosis symmetrica hereditaria is a rare autosomal dominant cutaneous disorder characterized by a mixture of hyperpigmented and hypopigmented macules of various sizes on the face and the dorsal aspects of the extremities. The genetic basis for this disease is unknown. We performed a genome-wide search in two large Chinese families to map the chromosome location of the responsible gene. We identified a locus at chromosome 1q11-1q21 with a cumulative maximum two-point LOD score of 8.85 at marker D1S2343 (at recombination fraction=0.00). Haplotype analyses indicated that the disease gene is located within the 11.6 cM region between markers D1S2696 and D1S2635. This is the first locus identified for dyschromatosis symmetrica hereditaria. This study provides a map location for isolation of a disease gene causing dyschromatosis symmetrica hereditaria.

China↗
PubMed2003

Activation of nitric oxide-cyclic guanosine monophosphate signaling in kidney by extracorporeal shock wave therapy.

PURPOSE: We defined whether extracorporeal shock wave therapy (ESWT) to the kidney activates the nitric oxide (NO)-cyclic 3',5'-guanosine monophosphate (cGMP) pathway. MATERIALS AND METHODS: A total of 90 male rabbits were randomly divided into group 1--pretreated with normal saline, group 2--pretreated intravenously (i.v.) with Nomega nitro-L-arginine-methyl ester (NAME) (100 mg/kg), group 3--pretreated i.v. with NAME and L-arginine (300 mg/kg) with ESWT to 1 kidney, group 4--pretreated IV with ODQ (1H-[1,2,4]oxadiazolo[4,3-a]quinoxalin-1-one) (20 microg/kg) and group 5--pretreated with normal saline with ESWT to the bladder. Plasma nitrite, NO metabolite and cGMP were analyzed in peripheral blood samples before, immediately after, and 30 and 60 minutes after ESWT. RESULTS: ESWT to the kidney but not to the bladder caused an increase before, immediately after, and 30 and 60 minutes after ESWT in plasma nitrite in group 1 (186.1 +/- 20.6, 217.5 +/- 21.6, 241.9 +/- 28.4 and 230.5 +/- 25.3 nM) and group 5 (149.0 +/- 14.7, 155.6 +/- 18.4, 131.8 +/- 13.6 and 140.0 +/- 15.7 nM), and in cGMP in group 1 (24.2 +/- 1.9, 33.8 +/- 3.2, 32.9 +/- 2.2 and 29.4 +/- 1.9 pmol/ml) and group 5 (25.5 +/- 2.1, 27.5 +/- 2.5, 28.7 +/- 3.1 and 25.5 +/- 2.6 pmol/ml, respectively). In group 2 NAME significantly inhibited the production of nitrite (113.4 +/- 18.6, 118.2 +/- 19.9, 114.6 +/- 18.3 and 112.5 +/- 17.6 nM) and cGMP (19.4 +/- 2.6, 20.6 +/- 2.8, 19.3 +/- 2.7 and 18.6 +/- 2.6 pmol, respectively). In group 3 inhibited nitrite and cGMP production caused by NAME was recovered with L-arginine. In group 4 ODQ significantly inhibited cGMP production. CONCLUSIONS: The results show that ESWT increases the level of NO and cGMP released by the kidney in an animal model.

Animals↗
PubMed2002

Self-assembly of nanoscale, porous T-symmetric molecular adamantanoids.

Treatments of lanthanide nitrate or perchlorate and C2-symmetric 2,2'-hydroxy-1,1'-binaphthalene-6,6'-dicarboxylic acid (6,6'-H2BDA) led to diastereoselective self-assembly of nanoscale, porous molecular adamantanoids [Ln4(BDA)6(H2O)12]*12DMF (Ln = Gd, La, 1a,b). These adamantanoid clusters possess perfect T symmetry as a result of the C2-symmetric nature of BDA bridging ligands and C3-symmetric nature of lanthanide ions. Face-to-face intercluster hydrogen bonds formed between 2,2'-dihydroxyl groups of BDA ligands and carboxylate oxygen atoms direct the assembly of 3D polycages based on chiral molecular adamantanoid building blocks which possess two different types of open channels.

Journal Article↗
PubMed2002

Nonlinear optically active polymeric coordination networks based on metal m-pyridylphosphonates.

A family of polymeric coordination networks based on meta-pyridylphosphonate bridging ligands has been synthesized and characterized by single-crystal X-ray crystallography. Compounds [M(2)(L-Et)(4)(mu-H(2)O)] (M = Mn, 1; Co, 2; Ni, 3; L-Et = ethyl-4-[2-(3-pyridyl)ethenyl]phenylphosphonate) were obtained by hydro(solvo)thermal reactions between diethyl-4-[2-(3-pyridyl)ethenyl]phenylphosphonate (L-Et(2)) and corresponding metal salts, while [Cd(L-H)(2)], 4 (L-H is monoprotonated 4-[2-(3-pyridyl)ethenyl]phenylphosphonate), was obtained by a hydro(solvo)thermal reaction between (L-H(2)).HBr and Cd(CF(3)SO(3))(2).6H(2)O. Compounds 1-3 are isostructural and crystallize in noncentrosymmetric space group Fdd2, and they adopt a complicated 3D framework structure composed of [M(2)(L-Et)(4)(mu-H(2)O)] building units, while compound 4 adopts a centrosymmetric 3D network structure resulted from linking 1D sinusoidal cadmium phosphate chains with L-H bridging ligands. Consistent with their polar structures, compounds 1-3 exhibit powder second harmonic generation signals larger than that of potassium dihydrogen phosphate.

Journal Article↗