1.Cystic lymphoid hyperplasia of the parotid gland as the initial manifestation of HIV infection.
Bingcheng WU ; Raymond NGO ; Fredrik PETERSSON
Singapore medical journal 2014;55(1):e12-6
We report the case of a patient who presented with cystic lymphoid hyperplasia of the right parotid gland as the index diagnosis of HIV infection. Histological examination of the excised parotid gland revealed a solid-cystic lymphoepithelial lesion with a non-keratinous squamous epithelium, which grew into the lymphoid component via anastomosing cords and islands. These anastomosing cords and islands contained variably abundant B cells, several subepithelial multinucleated histiocytes, salivary ducts infiltrated by small lymphocytes, and a dense lymphoid infiltrate containing lymphoid follicles with enlarged, irregular germinal centres.
Adult
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B-Lymphocytes
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cytology
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Biopsy
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Epithelial Cells
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cytology
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Epithelium
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metabolism
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HIV Infections
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diagnosis
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Humans
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Hyperplasia
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pathology
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virology
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Immunohistochemistry
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Lymphocytes
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cytology
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Male
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Parotid Gland
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pathology
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virology
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Salivary Glands
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pathology
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Tomography, X-Ray Computed
2.Efficacy of cell-assisted autologous lipotransfer with 3D-scanning system
Chengzhi DONG ; Yun LONG ; Raymond WU ; Xiang HU ; Yixin HE ; Hui ZHU
Chinese Journal of Medical Aesthetics and Cosmetology 2019;25(3):214-217
Objective 3D-scanning system is put in use to evaluate the comparative effect be-tween the cell-assisted lipotransfer (CAL) and traditional autologous fat transplantation ,which aims to definitize the survival rate of fat after CAL and provide a reference for the clinic .Methods Fourteen cases were collected among patients aquiring facial autologous fat transplantation from February to May 2016 from the hospital out-patient department ,which were then divided into two groups equally and randomly .7 patients used traditional autologous fat transplantation form the control group and the rest 7 used the CAL .Autologous fat sample of the CAL group was grafted with stromal vascular frac-tion (SVF) .All the patients received follow-up examination and the period lasted at least 6 months . 3D-scanning of facial models were conducted sometime before surgery ,a week after surgery and also 3 months after surgery .Results The average transplantation volume of CAL group was 13 .86 ml while the control group was 12 .14 ml .There were no significantly differnt in the transplantation volumes of the fat (P > 0 .05) .The survival rate of fat in CAL group was 37 .82% while the control group was 27 .54% after calculating the changing volume from the facial models .The survival rate of fat in CAL group was significantly higher than that in the control group (P < 0 .05) .Conclusions 3D-scanning system can provide the data concerning the lipotransfer and calculate the survival rate of the fat .CAL can raise the survival rate of the fat .
3.Differentiating effect of PPARgamma ligand rosiglitazone and all trans-retinoic acid on myeloma cells and its possible mechanism.
Hai-wen HUANG ; Guang-hua CHEN ; Hui-rong CHANG ; Howard C H CHOW ; Anska Y H LEUNG ; Raymond LIANG ; De-pei WU
Chinese Journal of Oncology 2009;31(12):885-889
OBJECTIVETo investigate the effects of PPARgamma ligand (rosiglitazone, RGZ) as well as combined with all trans-retinoic acid (ATRA) on human myeloma cells and try to explore the possible mechanism.
METHODSHuman myeloma cell lines U266 and RPMI-8226 cells were treated with RGZ in the presence or absence of ATRA. Cell proliferation was evaluated by [(3)H] thymidine incorporation, cell cycle distribution and CD49e expression were analyzed by flow cytometry, morphology changes were evaluated by Wright-Giemsa staining, and p27(Kip1) and p21(Waf1) expression was detected by Western blotting.
RESULTSThe exposure to RGZ induced proliferation inhibition in both cell lines in a dose-dependent manner. After cultured with 5 micromol/L RGZ, the proportion of U266 and RPMI-8226 cells in phase G(0)/G(1) was (45.2 +/- 6.7)% and (40.3 +/- 7.3)%, respectively (P < 0.05). The proportion of the cells in phase G(2)/M and S was (52.2 +/- 7.4)% and (57.4 +/- 9.5)%, respectively (P < 0.05). These changes were more evident when the RGZ concentration was increased to 10 micromol/L. A combination of RGZ with ATRA enhanced the growth inhibition and cell cycle arrest effects of RGZ. The RGZ-treated myeloma cells displayed morphological characteristics of cell differentiation, and more evident signs of differentiation were observed when RGZ was combined with ATRA. These changes were confirmed by the detection of CD49e expression. The expression of p27(Kip1) and p21(Waf1) in myeloma cells was up-regulated by RGZ and this change was more apparent when RGZ was used in combination with ATRA.
CONCLUSIONRGZ can induce cell cycle arrest and cell differentiation in myeloma cells which maybe caused by up-regulation of p27(Kip1) and p21(Waf1) expression. ATRA can enhance these effects of RGZ on multiple myeloma cells and combined use of these two drugs may show a synergistic effect on myeloma cells.
Cell Cycle ; drug effects ; Cell Line, Tumor ; Cell Proliferation ; drug effects ; Cyclin-Dependent Kinase Inhibitor p21 ; metabolism ; Cyclin-Dependent Kinase Inhibitor p27 ; Dose-Response Relationship, Drug ; Drug Synergism ; Humans ; Integrin alpha5 ; metabolism ; Intracellular Signaling Peptides and Proteins ; metabolism ; Multiple Myeloma ; metabolism ; pathology ; PPAR gamma ; agonists ; Thiazolidinediones ; administration & dosage ; pharmacology ; Tretinoin ; pharmacology ; Up-Regulation
4.Does Acupuncture Therapy Alter Activation of Neural Pathway for Pain Perception in Irritable Bowel Syndrome?: A Comparative Study of True and Sham Acupuncture Using Functional Magnetic Resonance Imaging.
Winnie C W CHU ; Justin C Y WU ; David T W YEW ; Liang ZHANG ; Lin SHI ; David K W YEUNG ; Defeng WANG ; Raymond K Y TONG ; Yawen CHAN ; Lixing LAO ; Ping C LEUNG ; Brian M BERMAN ; Joseph J Y SUNG
Journal of Neurogastroenterology and Motility 2012;18(3):305-316
BACKGROUND/AIMS: Patients with irritable bowel syndrome (IBS) are characterized by abnormal central processing with altered brain activation in response to visceral nociceptive signals. The effect of electroacupuncture (EA) on IBS patients is unclear. The study is set to study the effect of EA on brain activation during noxious rectal distension in IBS patients using a randomized sham-controlled model. METHODS: Thirty IBS-diarrhea patients were randomized to true electroacupuncture or sham acupuncture. Functional MRI was performed to evaluate cerebral activation at the following time points: (1) baseline when there was rectal distension only, (2) rectal distension during application of EA, (3) rectal distension after cessation of EA and (4) EA alone with no rectal distension. Group comparison was made under each condition using SPM5 program. RESULTS: Rectal distension induced significant activation of the anterior cingulated cortex, prefrontal cortex, thalamus, temporal regions and cerebellum at baseline. During and immediately after EA, increased cerebral activation from baseline was observed in the anterior cingulated cortex, bilateral prefrontal cortex, thalamus, temporal regions and right insula in both groups. However, true electroacupuncture led to significantly higher activation at right insula, as well as pulvinar and medial nucleus of the thalamus when compared to sham acupuncture. CONCLUSIONS: We postulate that acupuncture might have the potential effect of pain modulation in IBS by 2 actions: (1) modulation of serotonin pathway at insula and (2) modulation of mood and affection in higher cortical center via ascending pathway at the pulvinar and medial nucleus of the thalamus.
Acupuncture
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Acupuncture Therapy
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Brain
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Cerebellum
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Electroacupuncture
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Humans
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Irritable Bowel Syndrome
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Magnetic Resonance Imaging
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Magnetic Resonance Spectroscopy
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Magnetics
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Magnets
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Neural Pathways
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Pain Perception
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Prefrontal Cortex
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Pulvinar
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Salicylamides
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Serotonin
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Thalamus
5.ROR2 gene is associated with risk of non-syndromic cleft palate in an Asian population.
Hong WANG ; Jacqueline B HETMANSKI ; Ingo RUCZINSKI ; Kung Yee LIANG ; M Daniele FALLIN ; Richard J REDETT ; Gerald V RAYMOND ; Yah-Huei Wu CHOU ; Philip Kuo-Ting CHEN ; Vincent YEOW ; Samuel S CHONG ; Felicia Sh CHEAH ; Ethylin Wang JABS ; Alan F SCOTT ; Terri H BEATY
Chinese Medical Journal 2012;125(3):476-480
BACKGROUNDThe receptor tyrosine kinase-like orphan receptor 2 (ROR2) gene has been recently shown to play important roles in palatal development in animal models and resides in the chromosomal region linked to non syndromic cleft lip with or without cleft palate in humans. The aim of this study was to investigate the possible association between ROR2 gene and non-syndromic oral clefts.
METHODSHere we tested 38 eligible single-nucleotide polymorphisms (SNPs) in ROR2 gene in 297 non-syndromic cleft lip with or without cleft palate and in 82 non-syndromic cleft palate case parent trios recruited from Asia and Maryland. Family Based Association Test was used to test for deviation from Mendelian inheritance. Plink software was used to test potential parent of origin effect. Possible maternally mediated in utero effects were assessed using the TRIad Multi-Marker approach under an assumption of mating symmetry in the population.
RESULTSSignificant evidence of linkage and association was shown for 3 SNPs (rs7858435, rs10820914 and rs3905385) among 57 Asian non-syndromic cleft palate trios in Family Based Association Tests. P values for these 3 SNPs equaled to 0.000068, 0.000115 and 0.000464 respectively which were all less than the significance level (0.05/38 = 0.0013) adjusted by strict Bonferroni correction. Relevant odds ratios for the risk allele were 3.42 (1.80 - 6.50), 3.45 (1.75 - 6.67) and 2.94 (1.56 - 5.56), respectively. Statistical evidence of linkage and association was not shown for study groups other than non-syndromic cleft palate. Neither evidence for parent-of-origin nor maternal genotypic effect was shown for any of the ROR2 markers in our analysis for all study groups.
CONCLUSIONOur results provided evidence of linkage and association between the ROR2 gene and a gene controlling risk to non-syndromic cleft palate.
Asian Continental Ancestry Group ; genetics ; Cleft Lip ; genetics ; Cleft Palate ; genetics ; Genetic Predisposition to Disease ; genetics ; Genotype ; Humans ; Linkage Disequilibrium ; genetics ; Polymorphism, Single Nucleotide ; genetics ; Receptor Tyrosine Kinase-like Orphan Receptors ; genetics
6.Study on international standard multilingual nomenclature of Chinese medicine.
Kui WANG ; Lu LIU ; Wei LI ; Da-zhuo SHI ; Wen-ying ZENG ; Mian-sheng ZHU ; Michel ANGLES ; Jean-Raymond ATTALI ; Pedro CHOY ; Joao CHOY ; Chi-haur WU ; Fu-han ZHAI ; Maria Calduch RAMON ; Ching CHUNG
Chinese journal of integrative medicine 2010;16(2):176-179
The International Standard Chinese-English Basic Nomenclature of Chinese medicine (ISN) was released in 2007, a nomenclature list consisting of 6 500 Chinese medical terms. ISN was the culmination of several years of collaborative diligent work of over 200 specialists who represent Chinese medicine in 68 countries. The overall goal for devising standard English nomenclature for Chinese medicine is to develop a practical international standard nomenclature for Chinese medical basic terms, to make it compatible with contemporary research and educational standards in the globalized health care service. In this article, provided is an overview of principles and methods for the multilingual translations, the processes behind the particular content of the Chinese-English ISN and an introduction to the ongoing new projects, i.e. the multilingual versions of ISN (International Standards of Chinese-Spanish, Chinese-French and Chinese-Portuguese Basic Nomenclature of Chinese Medicine).
Anatomy
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standards
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Drugs, Chinese Herbal
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standards
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Humans
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International Cooperation
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Medicine, Chinese Traditional
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methods
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standards
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Multilingualism
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Publications
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standards
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Reference Standards
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Terminology as Topic
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Translating
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Vocabulary, Controlled
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World Health Organization
7.Bridging Thrombolysis versus Direct Mechanical Thrombectomy in Stroke Due to Basilar Artery Occlusion
Isabel SIOW ; Benjamin Y.Q. TAN ; Keng Siang LEE ; Natalie ONG ; Emma TOH ; Anil GOPINATHAN ; Cunli YANG ; Pervinder BHOGAL ; Erika LAM ; Oliver SPOONER ; Lukas MEYER ; Jens FIEHLER ; Panagiotis PAPANAGIOTOU ; Andreas KASTRUP ; Maria ALEXANDROU ; Seraphine ZUBEL ; Qingyu WU ; Anastasios MPOTSARIS ; Volker MAUS ; Tommy ANDERSON ; Vamsi GONTU ; Fabian ARNBERG ; Tsong Hai LEE ; Bernard P.L. CHAN ; Raymond C.S. SEET ; Hock Luen TEOH ; Vijay K. SHARMA ; Leonard L.L. YEO
Journal of Stroke 2022;24(1):128-137
Background:
and Purpose Mechanical thrombectomy (MT) is an effective treatment for patients with basilar artery occlusion (BAO) acute ischemic stroke. It remains unclear whether bridging intravenous thrombolysis (IVT) prior to MT confers any benefit. This study compared the outcomes of acute BAO patients who were treated with direct MT versus combined IVT plus MT.
Methods:
This multicenter retrospective cohort study included patients who were treated for acute BAO from eight comprehensive stroke centers between January 2015 and December 2019. Patients received direct MT or combined bridging IVT plus MT. Primary outcome was favorable functional outcome defined as modified Rankin Scale 0–3 measured at 90 days. Secondary outcome measures included mortality and symptomatic intracranial hemorrhage (sICH).
Results:
Among 322 patients, 127 (39.4%) patients underwent bridging IVT followed by MT and 195 (60.6%) underwent direct MT. The mean±standard deviation age was 67.5±14.1 years, 64.0% were male and median National Institutes of Health Stroke Scale was 16 (interquartile range, 8 to 25). At 90-day, the rate of favorable functional outcome was similar between the bridging IVT and direct MT groups (39.4% vs. 34.4%, P=0.361). On multivariable analyses, bridging IVT was not asComorbidisociated with favorable functional outcome, mortality or sICH. In subgroup analyses, patients with underlying atherosclerosis treated with bridging IVT compared to direct MT had a higher rate of favorable functional outcome at 90 days (37.2% vs. 15.5%, P=0.013).
Conclusions
Functional outcomes were similar in BAO patients treated with bridging IVT versus direct MT. In the subgroup of patients with underlying large-artery atherosclerosis stroke mechanism, bridging IVT may potentially confer benefit and this warrants further investigation.
8. Application of functional parotidectomy via retroauricular hairline incision in the excising superficial parotid tumor
Ping′an WU ; Zhaoqun LU ; Yafeng GUAN ; Honglei ZHU ; Xiuni LIANG ; Weiying LIANG ; Raymond K. TSANG
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2017;52(12):905-908
Objective:
To evaluate the usefulness of retroauricular hairline incision (RAHI) in partial superficial parotidectomy (PSP) by comparison with modified Blair incision (MBI).
Methods:
A retrospective analysis of 64 medical records for patients with benign parotid tumors who underwent partial superficial parotidectomy was undertaken (28 were in MBI group, 36 in RAHI group). Size and location of tumors, operative time, occurrence of facial nerve paralysis and Frey′s syndrome, and cosmetic outcomes were compared between RAHI and MBI groups.
Results:
Compared with MBI group, RAHI group showed better cosmetic results for benign parotid tumors in mean satisfaction score(
9.Application of three-staged paramedian forehead flap in reconstruction and repair of full-thickness nasal defect.
Yasin ABDUREHIM ; Yalkun YASIN ; Raymond K.Tsang ; Pingan WU ; Xiuni LIANG ; Ayihen XUKURHAN ; Jun YONG ; Nilupar ALIM ; Pirdon KUYAX ; Muzapper MIRZAK ; Muradil MUTALLIP ; Abdukerimjan MEMET
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2021;56(4):374-380
10.In vitro expression and analysis of the 826 human G protein-coupled receptors.
Xuechen LV ; Junlin LIU ; Qiaoyun SHI ; Qiwen TAN ; Dong WU ; John J SKINNER ; Angela L WALKER ; Lixia ZHAO ; Xiangxiang GU ; Na CHEN ; Lu XUE ; Pei SI ; Lu ZHANG ; Zeshi WANG ; Vsevolod KATRITCH ; Zhi-Jie LIU ; Raymond C STEVENS
Protein & Cell 2016;7(5):325-337
G protein-coupled receptors (GPCRs) are involved in all human physiological systems where they are responsible for transducing extracellular signals into cells. GPCRs signal in response to a diverse array of stimuli including light, hormones, and lipids, where these signals affect downstream cascades to impact both health and disease states. Yet, despite their importance as therapeutic targets, detailed molecular structures of only 30 GPCRs have been determined to date. A key challenge to their structure determination is adequate protein expression. Here we report the quantification of protein expression in an insect cell expression system for all 826 human GPCRs using two different fusion constructs. Expression characteristics are analyzed in aggregate and among each of the five distinct subfamilies. These data can be used to identify trends related to GPCR expression between different fusion constructs and between different GPCR families, and to prioritize lead candidates for future structure determination feasibility.
Animals
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Computational Biology
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Crystallography, X-Ray
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Gene Expression
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Humans
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Plasmids
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genetics
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metabolism
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Protein Domains
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Receptors, Adrenergic, beta-1
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Receptors, G-Protein-Coupled
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classification
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genetics
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metabolism
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Receptors, Odorant
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metabolism
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Receptors, Purinergic P1
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genetics
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metabolism
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Sf9 Cells
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Spodoptera