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Xia Q, Ding T, Chang T, Ruan J, Yang J, Ma M, Liu J, Liu Z, Jiao S, Wu J, Ren J, Lu S, Li Y, Yao Z. Nanopore sequencing with T2T-CHM13 for accurate detection and preventing the transmission of structural rearrangements in highly repetitive heterochromatin regions in human embryos. Clin Transl Med 2024; 14:e1612. [PMID: 38445430 PMCID: PMC10915734 DOI: 10.1002/ctm2.1612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 02/08/2024] [Accepted: 02/18/2024] [Indexed: 03/07/2024] Open
Abstract
BACKGROUND Structural rearrangements in highly repetitive heterochromatin regions can result in miscarriage or foetal malformations; however, detecting and preventing the transmission of these rearrangements has been challenging. Recently, the completion of sequencing of the complete human genome (T2T-CHM13) has made it possible to accurately characterise structural rearrangements in these regions. We developed a method based on T2T-CHM13 and nanopore sequencing to detect and block structural rearrangements in highly repetitive heterochromatin sequences. METHODS T2T-CHM13-based "Mapping Allele with Resolved Carrier Status" was performed for couples who carry structural rearrangements in heterochromatin regions. Using nanopore sequencing and the T2T-CHM13 reference genome, the precise breakpoints of inversions and translocations close to the centromere were detected and haplotypes were constructed using flanking single-nucleotide polymorphisms (SNPs). Haplotype linkage analysis was then performed by comparing consistent parental SNPs with embryonic SNPs to determine whether the embryos carried hereditary inversions or balanced translocations. Based on copy number variation and haplotype linkage analysis, we transplanted normal embryos, which were further verified by an amniotic fluid test. RESULTS To validate this approach, we used nanopore sequencing of families with inversions and reciprocal translocations close to the centromere. Using the T2T-CHM13 reference genome, we accurately detected inversions and translocations in centromeres, constructed haplotypes and prevented the transmission of structural rearrangements in the offspring. CONCLUSIONS This study represents the first successful application of T2T-CHM13 in human reproduction and provides a feasible protocol for detecting and preventing the transmission of structural rearrangements of heterochromatin in embryos.
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Affiliation(s)
- Qiuping Xia
- Reproductive Medicine CenterXiangya HospitalCentral South UniversityChangshaChina
| | | | - Tianli Chang
- Reproductive Medicine CenterXiangya HospitalCentral South UniversityChangshaChina
| | | | - Ji Yang
- Yikon Genomics Company, Ltd.SuzhouChina
| | | | - Jiaqi Liu
- Yikon Genomics Company, Ltd.SuzhouChina
| | - Zhen Liu
- Yikon Genomics Company, Ltd.SuzhouChina
| | | | - Jian Wu
- Yikon Genomics Company, Ltd.SuzhouChina
| | - Jun Ren
- Yikon Genomics Company, Ltd.SuzhouChina
| | - Sijia Lu
- Yikon Genomics Company, Ltd.SuzhouChina
| | - Yanping Li
- Reproductive Medicine CenterXiangya HospitalCentral South UniversityChangshaChina
| | - Zhongyuan Yao
- Reproductive Medicine CenterXiangya HospitalCentral South UniversityChangshaChina
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Chang T, Tang H, Zhou X, He J, Liu N, Li Y, Xiang W, Yao Z. A novel homozygous nonsense variant of AK7 is associated with multiple morphological abnormalities of the sperm flagella. Reprod Biomed Online 2023; 48:103765. [PMID: 38492416 DOI: 10.1016/j.rbmo.2023.103765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 11/29/2023] [Accepted: 11/29/2023] [Indexed: 03/18/2024]
Abstract
RESEARCH QUESTION Is the novel homozygous nonsense variant of AK7 associated with multiple morphological abnormalities of the sperm flagella (MMAF), a specific type of oligoasthenoteratozoospermia leading to male infertility? DESIGN Whole-exome sequencing and Sanger sequencing were performed to identify potential gene variants. Immunoblotting and immunofluorescence were applied to confirm the relationship between mutated genes and disease phenotypes. The concentration of reactive oxygen species and the rate of apoptosis were measured to evaluate the mitochondrial function of spermatozoa. Transmission electron microscopy and scanning electron microscopy were employed to observe sperm ultrastructure. RESULTS A novel homozygous nonsense variant of AK7, c.1153A>T (p. Lys385*), was identified in two infertile siblings with asthenoteratozoospermia through whole-exome sequencing. Both immunoblotting and immunofluorescence assays showed practically complete absence of AK7 in the patient's spermatozoa. Additionally, the individual with the novel AK7 variant exhibited a phenotype characterized by severe oxidative stress and apoptosis caused by mitochondrial metabolic dysfunction of spermatozoa. Notably, remarkable flagellar defects with multiple axonemes in uniflagellate spermatozoa, accompanied by mitochondrial vacuolization, were observed; this has not been reported previously in patients with other AK7 variants. CONCLUSIONS This study found that a novel identified homozygous nonsense variant of AK7 may be associated with MMAF-related asthenoteratozoospermia. The observed functional associations between mitochondria and sperm flagellar assembly provide evidence for potential mutual regulation between AK7 and flagella-associated proteins during spermatogenesis.
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Affiliation(s)
- Tianli Chang
- Reproductive Medicine Centre, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Hongying Tang
- Reproductive Medicine Centre, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xu Zhou
- Reproductive Medicine Centre, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jingliang He
- Reproductive Medicine Centre, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Nenghui Liu
- Reproductive Medicine Centre, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yanping Li
- Reproductive Medicine Centre, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Wenpei Xiang
- Institute of Reproductive Health, Centre of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhongyuan Yao
- Reproductive Medicine Centre, Xiangya Hospital, Central South University, Changsha, Hunan, China.
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Chang T, Zhao J, Li Q, Meng A, Xia Q, Li Y, Xiang W, Yao Z. Nuclear-cytoplasmic asynchrony in oocyte maturation caused by TUBB8 variants via impairing microtubule function: a novel pathogenic mechanism. Reprod Biol Endocrinol 2023; 21:109. [PMID: 37993944 PMCID: PMC10664611 DOI: 10.1186/s12958-023-01161-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 11/11/2023] [Indexed: 11/24/2023] Open
Abstract
BACKGROUND TUBB8, a crucial gene encoding microtubule protein, plays a pivotal role in cellular processes. Deleterious TUBB8 variants have been shown to significantly hinder oocyte maturation. In this study, we conducted an in vitro investigation using TUBB8 mutant mouse oocytes to elucidate the pathogenic mechanisms of TUBB8 variants in oocyte nuclear and cytoplasmic maturation. METHODS A mutant model was successfully established in mouse oocytes via microinjection to further investigate the effects of four novel discovered TUBB8 mutations on the nuclear and cytoplasmic maturation of mouse oocytes. Immunofluorescence and confocal microscopy were performed to observe the cortical polarity and spindle and of mutant oocytes. Active mitochondrial staining was performed to analyze mitochondrial distribution patterns. Endoplasmic reticulum and Ca2+ staining were conducted to assess ER distribution and cytoplasmic calcium ion concentration in oocytes. RESULTS In mouse oocytes, TUBB8 variants (p.A313V, p.C239W, p.R251Q, and p.G96R) resulted in a reduction of the first polar body extrusion rate, disruption of spindle assembly, and abnormal chromosome distribution. Additionally, these variants induced oocyte organelle abnormalities, including anomalies in mitochondrial redistribution and endoplasmic reticulum stress compared to the wild-type. CONCLUSION Deleterious TUBB8 variants could disrupt microtubule function, affecting critical processes such as spindle assembly, chromosome distribution, and organelle rearrangement during oocyte meiosis. These disruptions culminate in compromised nuclear-cytoplasmic maturation, consequently giving rise to oocyte maturation defects.
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Affiliation(s)
- Tianli Chang
- Reproductive Medicine Center, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
| | - Jing Zhao
- Reproductive Medicine Center, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
| | - Qi Li
- Reproductive Medicine Center, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
| | - Anning Meng
- Reproductive Medicine Center, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
| | - Qiuping Xia
- Reproductive Medicine Center, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
| | - Yanping Li
- Reproductive Medicine Center, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
| | - Wenpei Xiang
- Institute of Reproductive Health, Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Hongshan, China
| | - Zhongyuan Yao
- Reproductive Medicine Center, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China.
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Wang X, Zhao J, Yao Z, Xia Q, Chang T, Zeng J, Liu J, Li Y, Zhu H. Arrested Cells/Cellular Debris Expelled from Blastocysts Is Self-Correction Phenomenon During Early Embryonic Development. Reprod Sci 2023; 30:2177-2187. [PMID: 36627481 PMCID: PMC10310642 DOI: 10.1007/s43032-022-01159-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 12/21/2022] [Indexed: 01/12/2023]
Abstract
Arrested cells/ cellular debris is component left in the zona pellucida after blastocyst hatching. To identify whether expelling arrested cells/cellular debris from blastocysts is a process of human embryo self-correction by eliminating abnormal cells, 21 pairs of trophectoderm (TE) biopsies and the corresponding arrested cells/cellular debris expelled from the blastocysts from July to December 2020 were collected and analyzed using next-generation sequencing (NGS). Then, the NGS results of TE biopsies and the corresponding arrested cells/cellular debris were compared. We identified that 47.6% of blastocysts (10/21) were aneuploidies and mosaicism. A total of 18 groups of arrested cells/cellular debris (85.7%) expelled from blastocysts were abnormal, including nine aneuploid embryos and nine euploid embryos. In the arrested cells/cellular debris, all the chromosomes were affected. In conclusion, mosaicism and aneuploidies are common features of early embryonic development, and the arrested cells/cellular debris expelled from blastocysts provides evidence of early embryonic self-correction.
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Affiliation(s)
- Xiaoxia Wang
- Department of Reproductive Center, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
- The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu, 322000, Zhejiang, China
| | - Jing Zhao
- Department of Reproductive Center, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
- Clinical Research Center for Women's Reproductive Health in Hunan Province, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
| | - Zhongyuan Yao
- Department of Reproductive Center, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
- Clinical Research Center for Women's Reproductive Health in Hunan Province, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
- Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, 410000, Hunan, China
| | - Qiuping Xia
- Department of Reproductive Center, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
- Clinical Research Center for Women's Reproductive Health in Hunan Province, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
| | - Tianli Chang
- Department of Reproductive Center, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
- Clinical Research Center for Women's Reproductive Health in Hunan Province, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
| | - Jun Zeng
- Department of Reproductive Center, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
| | - Jiaqi Liu
- Yikon Genomics Company, Ltd, No.218, Xinghu Street, Suzhou, 215000, China
| | - Yanping Li
- Department of Reproductive Center, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
- Clinical Research Center for Women's Reproductive Health in Hunan Province, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
| | - Huimin Zhu
- Center for Medical Genetics & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, 410000, Hunan, China.
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Chang T, Bagur R. THE RETURN OF SUBCLAVIAN CANNULATION IN THE CRITICAL CARE SETTING: A WESTERN CRITICAL CARE EXPERIENCE. Can J Cardiol 2022. [DOI: 10.1016/j.cjca.2022.08.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Lin Y, Lin J, Chang T, Chou T, Hung L, Huang C. PO-1329 Predictive factors for pathologic good response after the neoadjuvant CRT of rectal cancer. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)03293-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Li H, Chang T, Mu H, Xiang W. Case report: Birth achieved after effective ovarian stimulation combined with dexamethasone in a patient with resistant ovary syndrome. J Ovarian Res 2022; 15:42. [PMID: 35392972 PMCID: PMC8988423 DOI: 10.1186/s13048-022-00976-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 03/30/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Resistant ovary syndrome (ROS) is a rare endocrine disorder and there have been few reports of live births by affected patients. As gonadotropin resistance leads immature oocytes, some researchers reported few live births with in vitro maturation (IVM) of oocytes, but IVM is not always successful in ROS patients. Here, we report an original case of ROS, associated with Ig-FSHR in the serum, who achieved a live birth following ovarian stimulation combined with dexamethasone treatment. CASE PRESENTATION The 30-year-old woman presented with secondary amenorrhea and infertility. Her serum FSH levels were found to be higher than normal, but in discordance with a normal anti-Müllerian hormone (AMH) level and antral follicle count. Genetic investigation found no mutations potentially affecting FSHR. With reference of previous ROS studies, the patient's serum was analyzed for antibodies directed against FSHR and dot blot analysis showed strong reactivity with FSHR. Then, dexamethasone was proposed to the patient, and she successfully became pregnant, finally delivering a healthy girl by caesarean section. CONCLUSION To our best knowledge, this is the first report of the successful treatment of ROS using ovarian stimulation combined with dexamethasone. In some cases of ROS, high doses of exogenous gonadotropins in combination with immunosuppressive therapy could be an effective approach.
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Affiliation(s)
- Huiying Li
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Tianli Chang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Hongbei Mu
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Wenpei Xiang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China. .,Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
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Chang T, Ngo J, Vargas JI, Rocheford E, Rocheford T, Ortiz D, Karcher DM, Johnson TA. Research Note: Orange corn altered the cecal microbiome in laying hens. Poult Sci 2021; 101:101685. [PMID: 35077921 PMCID: PMC8792267 DOI: 10.1016/j.psj.2021.101685] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 12/13/2021] [Accepted: 12/17/2021] [Indexed: 12/01/2022] Open
Abstract
Carotenoids, which are pigments known to have many health benefits, such as their antioxidant properties, are being researched for their potential as a feed additive for production animals. These pigments are found in varying quantities in different breeds of corn, and their impact on the chicken microbiome requires further investigation. This 35 d laying hen (Novagen White) feeding trial involved varying the levels and composition of carotenoids by changing the corn source: white (0.9 µg total carotinoids/g total diet), yellow (5.7 µg/g), and orange (24.9 µg/g). For each of the three corn diet treatments, 6 replicate cages were randomly assigned. The cecal microbial community composition of the hens was then studied by 16S rRNA gene amplicon sequencing. The composition of the cecal bacterial community, as determined by Bray-Curtis dissimilarity, was different (P < 0.05) in chickens fed the orange corn diet, compared to chickens on the white corn diet, but there was no statistical difference between animals fed yellow corn compared to the white or orange corn groups. There was no change in the alpha diversity between any of the groups. Within Lactobacillus, which is one of the most abundant genera, 2 amplicon sequence variants (ASVs) were decreased and one ASV was increased in the orange corn group compared to both the white and yellow corn groups. While previous studies showed that orange corn did not alter the community composition in broilers, it appears that orange corn based feed may alter the community composition of laying hens.
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Affiliation(s)
- T Chang
- Department of Animal Sciences, Purdue University, West Lafayette, IN 47907, USA
| | - J Ngo
- Department of Animal Sciences, Purdue University, West Lafayette, IN 47907, USA
| | - J I Vargas
- Department of Animal Sciences, Purdue University, West Lafayette, IN 47907, USA; Department of Animal Sciences, Auburn University, Auburn, AL, USA
| | | | - T Rocheford
- Nutramaize, IN 47906, USA; Department of Agronomy, Purdue University, West Lafayette, IN 47907, USA
| | - D Ortiz
- Department of Agronomy, Purdue University, West Lafayette, IN 47907, USA
| | - D M Karcher
- Department of Animal Sciences, Purdue University, West Lafayette, IN 47907, USA
| | - T A Johnson
- Department of Animal Sciences, Purdue University, West Lafayette, IN 47907, USA.
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Chang T, Yusin J, Wang V. M027 MELOXICAM INDUCED FIXED DRUG ERUPTION. Ann Allergy Asthma Immunol 2021. [DOI: 10.1016/j.anai.2021.08.201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Eng C, Rao T, Chang T. Management of a Rare Case of Chemical Peritonitis after Laparoscopic Dermoid Cystectomy. J Minim Invasive Gynecol 2021. [DOI: 10.1016/j.jmig.2021.09.484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Sandoval Karamian AG, Mercimek-Andrews S, Mohammad K, Molloy EJ, Chang T, Chau V, Murray DM, Wusthoff CJ. Neonatal encephalopathy: Etiologies other than hypoxic-ischemic encephalopathy. Semin Fetal Neonatal Med 2021; 26:101272. [PMID: 34417137 DOI: 10.1016/j.siny.2021.101272] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Neonatal encephalopathy (NE) describes the clinical syndrome of a newborn with abnormal brain function that may result from a variety of etiologies. HIE should be distinguished from neonatal encephalopathy due to other causes using data gathered from the history, physical and neurological exam, and further investigations. Identifying the underlying cause of encephalopathy has important treatment implications. This review outlines conditions that cause NE and may be mistaken for HIE, along with their distinguishing clinical features, pathophysiology, investigations, and treatments. NE due to brain malformations, vascular causes, neuromuscular causes, genetic conditions, neurogenetic disorders and inborn errors of metabolism, central nervous system (CNS) and systemic infections, and toxic/metabolic disturbances are discussed.
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Affiliation(s)
- A G Sandoval Karamian
- Children's Hospital of Philadelphia, Division of Neurology, 3501 Civic Center Blvd Office 1200.12, Philadelphia, PA, 19104, USA.
| | - S Mercimek-Andrews
- Biochemical Geneticist, Department of Medical Genetics, University of Alberta, 8-39 Medical Sciences Building, 8613 - 144 Street, Edmonton, T6G 2H7, Alberta, Canada.
| | - K Mohammad
- Cumming School of Medicine, University of Calgary, Alberta Children's Hospital, Room B4-286, 28 Oki drive NW, Calgary, AB, T3B 6A8, Canada.
| | - E J Molloy
- Trinity College, the University of Dublin, Trinity Translational Medicine Institute, Dublin, Ireland; Children's Health Ireland at Tallaght and Crumlin & and Coombe Women's and Infants University Hospital, Dublin, Ireland; Trinity Research in Childhood Centre (TRiCC), Trinity Academic Centre, Tallaght University Hospital, Dublin 24, Ireland.
| | - T Chang
- George Washington University School of Medicine & Health Sciences, Washington, DC, 20010, USA; Neonatal Neurology Program, Children's National Hospital, 111 Michigan Ave NW, Washington, DC, 20010, USA.
| | - Vann Chau
- Neurology, Neonatal Neurology Program, The Hospital for Sick Children, 555 University Avenue, Toronto ON, M5G 1X8, Canada.
| | - D M Murray
- Deptartment of Paediatric and Child Health, University College Cork, ARm 2.32, Paediatric Academic Unit, Floor 2, Seahorse Unit, Cork University Hospital, Wilton, Cork, T12 DCA4, Ireland.
| | - Courtney J Wusthoff
- Division of Child Neurology, Division of Pediatrics- Neonatal and Developmental Medicine, Stanford Children's Health, 750 Welch Road, Suite 317, Palo Alto, CA, 94304 USA.
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Wei X, Zhou H, Xie D, Li J, Yang M, Chang T, Wang D, Hu L, Xie G, Wang J, Wang L. Genome-Wide Association Study in Rice Revealed a Novel Gene in Determining Plant Height and Stem Development, by Encoding a WRKY Transcription Factor. Int J Mol Sci 2021; 22:ijms22158192. [PMID: 34360958 PMCID: PMC8347446 DOI: 10.3390/ijms22158192] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 07/17/2021] [Indexed: 11/27/2022] Open
Abstract
Semi-dwarfism is a main agronomic trait in crop breeding. In this study, we performed genome-wide association study (GWAS) and identified a new quantitative trait nucleotide (QTN) for rice shoot length. The peak QTN (C/T) was located in the first coding region of a group III WRKY transcription factor OsWRKY21 (LOC_Os01g60640). Interestingly, further haplotype analysis showed that C/T difference only existed in the indica group but not in the japonica group, resulting in significant differences in plant height among the different indica rice varieties. OsWRKY21 was expressed in embryo, radicle, shoots, leaves, and stems. Most notably, overexpressing OsWRKY21 resulted in the semi-dwarf phenotype, early heading date and short internodes compared to the wild type, while the knockout mutant plants by CRISPR/Cas9 technology yielded the opposite. The overexpressing lines exhibited the decreased length of the cells near sclerenchyma epidermis, accompanied with the lower levels of indole-3-acetic acid (IAA) and gibberellin 3 (GA3), but increased levels of the abscisic acid (ABA) and salicylic acid (SA) in the internodes at heading stage. Moreover, the semi-dwarf phenotype could be fully rescued by exogenous GA3 application at seedling stage. The RNA-seq and qRT-PCR analysis confirmed the differential expression levels of genes in development and the stress responses in rice, including GA metabolism (GA20ox2, GA2ox6, and YABY1) and cell wall biosynthesis (CesA4, 7, and 9) and regulation (MYB103L). These data suggest the essential role of OsWRKY21 in regulation of internode elongation and plant height in rice.
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Affiliation(s)
- Xiaoshuang Wei
- State Key Laboratory for Conservation & Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, Nanning 530004, China; (X.W.); (H.Z.); (J.L.); (M.Y.); (T.C.)
| | - Hailian Zhou
- State Key Laboratory for Conservation & Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, Nanning 530004, China; (X.W.); (H.Z.); (J.L.); (M.Y.); (T.C.)
| | - Deying Xie
- College of Plant Science & Technology, Huazhong Agricultural University, Wuhan 430070, China; (D.X.); (G.X.)
| | - Jianguo Li
- State Key Laboratory for Conservation & Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, Nanning 530004, China; (X.W.); (H.Z.); (J.L.); (M.Y.); (T.C.)
- College of Plant Science & Technology, Huazhong Agricultural University, Wuhan 430070, China; (D.X.); (G.X.)
| | - Mingchong Yang
- State Key Laboratory for Conservation & Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, Nanning 530004, China; (X.W.); (H.Z.); (J.L.); (M.Y.); (T.C.)
| | - Tianli Chang
- State Key Laboratory for Conservation & Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, Nanning 530004, China; (X.W.); (H.Z.); (J.L.); (M.Y.); (T.C.)
| | - Dongxin Wang
- College of Life Science & Technology, Guangxi University, Nanning 530004, China; (D.W.); (L.H.)
| | - Lihua Hu
- College of Life Science & Technology, Guangxi University, Nanning 530004, China; (D.W.); (L.H.)
| | - Guosheng Xie
- College of Plant Science & Technology, Huazhong Agricultural University, Wuhan 430070, China; (D.X.); (G.X.)
| | - Jihong Wang
- Department of Life Science, Tangshan Normal University, Tangshan 063000, China;
| | - Lingqiang Wang
- State Key Laboratory for Conservation & Utilization of Subtropical Agro-Bioresources, College of Agriculture, Guangxi University, Nanning 530004, China; (X.W.); (H.Z.); (J.L.); (M.Y.); (T.C.)
- College of Plant Science & Technology, Huazhong Agricultural University, Wuhan 430070, China; (D.X.); (G.X.)
- Correspondence:
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Cai H, Chang T, Li Y, Jia Y, Li H, Zhang M, Su P, Zhang L, Xiang W. Circular DDX10 is associated with ovarian function and assisted reproductive technology outcomes through modulating the proliferation and steroidogenesis of granulosa cells. Aging (Albany NY) 2021; 13:9592-9612. [PMID: 33742605 PMCID: PMC8064152 DOI: 10.18632/aging.202699] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 02/01/2021] [Indexed: 12/29/2022]
Abstract
circRNAs are present in human ovarian tissue, but how they regulate ovarian function remains unknown. In the current study, we investigated the levels of circRNAs in granulosa cells (GCs) derived from human follicular fluid, explored their correlation with female ovarian reserve function and clinical outcomes of assisted reproduction technique (ART), and investigated their effects on the biological functions of GC cell lines (COV434) in vitro. We identified that the levels of circDDX10 in GCs decreased gradually with aging (P < 0.01) and was positively correlated with AMH (r = 0.45, P < 0.01) and AFC (r = 0.32, P < 0.01), but not with FSH and estradiol (P > 0.05). Additionally, circDDX10 was related to the number of oocytes obtained, and good quality embryo rates. Silencing circDDX10 in GCs could markedly up-regulate the expression of apoptosis-related factors, reduce cell proliferation activity, inhibit the expression of steroid hormone synthesis-related factors, and prohibit the synthesis of estradiol. On the contrary, over-expression of circDDX10 had the opposite effect. circDDX10 is expected to become a novel biomarker for predicting the outcomes of ART, and may participate in the regulation of ovarian function by affecting the proliferation and apoptosis of GCs and steroid hormone synthesis.
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Affiliation(s)
- Hongcai Cai
- Institute of Reproductive Health/Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China.,Department of Urology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, Guangdong, China
| | - Tianli Chang
- Institute of Reproductive Health/Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
| | - Yamin Li
- Institute of Reproductive Health/Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
| | - Yinzhao Jia
- Department of General Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
| | - Huiying Li
- Institute of Reproductive Health/Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
| | - Mengdi Zhang
- Institute of Reproductive Health/Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
| | - Ping Su
- Institute of Reproductive Health/Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
| | - Ling Zhang
- Institute of Reproductive Health/Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
| | - Wenpei Xiang
- Institute of Reproductive Health/Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei, China
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Chang T, Sepati M, Herting G, Leygraf C, Rajarao GK, Butina K, Richter-Dahlfors A, Blomberg E, Odnevall Wallinder I. A novel methodology to study antimicrobial properties of high-touch surfaces used for indoor hygiene applications-A study on Cu metal. PLoS One 2021; 16:e0247081. [PMID: 33630868 PMCID: PMC7906481 DOI: 10.1371/journal.pone.0247081] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 02/01/2021] [Indexed: 01/30/2023] Open
Abstract
Metal-based high-touch surfaces used for indoor applications such as doorknobs, light switches, handles and desks need to remain their antimicrobial properties even when tarnished or degraded. A novel laboratory methodology of relevance for indoor atmospheric conditions and fingerprint contact has therefore been elaborated for combined studies of both tarnishing/corrosion and antimicrobial properties of such high-touch surfaces. Cu metal was used as a benchmark material. The protocol includes pre-tarnishing/corrosion of the high touch surface for different time periods in a climatic chamber at repeated dry/wet conditions and artificial sweat deposition followed by the introduction of bacteria onto the surfaces via artificial sweat droplets. This methodology provides a more realistic and reproducible approach compared with other reported procedures to determine the antimicrobial efficiency of high-touch surfaces. It provides further a possibility to link the antimicrobial characteristics to physical and chemical properties such as surface composition, chemical reactivity, tarnishing/corrosion, surface roughness and surface wettability. The results elucidate that bacteria interactions as well as differences in extent of tarnishing can alter the physical properties (e.g. surface wettability, surface roughness) as well as the extent of metal release. The results clearly elucidate the importance to consider changes in chemical and physical properties of indoor hygiene surfaces when assessing their antimicrobial properties.
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Affiliation(s)
- T. Chang
- Department of Chemistry, KTH Royal Institute of Technology, Div. Surface and Corrosion Science, School of Engineering Sciences in Chemistry, Biotechnology and Health, Stockholm, Sweden
- AIMES—Center for the Advancement of Integrated Medical and Engineering Sciences at Karolinska Institutet and KTH Royal Institute of Technology, Stockholm, Sweden
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - M. Sepati
- Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Milan, Italy
| | - G. Herting
- Department of Chemistry, KTH Royal Institute of Technology, Div. Surface and Corrosion Science, School of Engineering Sciences in Chemistry, Biotechnology and Health, Stockholm, Sweden
| | - C. Leygraf
- Department of Chemistry, KTH Royal Institute of Technology, Div. Surface and Corrosion Science, School of Engineering Sciences in Chemistry, Biotechnology and Health, Stockholm, Sweden
| | - G. Kuttuva Rajarao
- Department of Industrial Biotechnology, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Stockholm, Sweden
| | - K. Butina
- AIMES—Center for the Advancement of Integrated Medical and Engineering Sciences at Karolinska Institutet and KTH Royal Institute of Technology, Stockholm, Sweden
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - A. Richter-Dahlfors
- AIMES—Center for the Advancement of Integrated Medical and Engineering Sciences at Karolinska Institutet and KTH Royal Institute of Technology, Stockholm, Sweden
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
- KTH Royal Institute of Technology, School of Engineering Sciences in Chemistry, Biotechnology and Health, Fibre and Polymer Technology, Stockholm, Sweden
| | - E. Blomberg
- Department of Chemistry, KTH Royal Institute of Technology, Div. Surface and Corrosion Science, School of Engineering Sciences in Chemistry, Biotechnology and Health, Stockholm, Sweden
| | - I. Odnevall Wallinder
- Department of Chemistry, KTH Royal Institute of Technology, Div. Surface and Corrosion Science, School of Engineering Sciences in Chemistry, Biotechnology and Health, Stockholm, Sweden
- AIMES—Center for the Advancement of Integrated Medical and Engineering Sciences at Karolinska Institutet and KTH Royal Institute of Technology, Stockholm, Sweden
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
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15
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Atukorala I, Pathmeswaran A, Makovey J, Metcalf B, Bennell KL, March L, Chang T, Zhang Y, Hunter DJ. Can pain flares in knee osteoarthritis be predicted? Scand J Rheumatol 2021; 50:198-205. [PMID: 33467963 DOI: 10.1080/03009742.2020.1829035] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Objectives: This study examined whether risk factors for knee osteoarthritis (KOA) pain such as age, gender, body mass index (BMI), baseline pain, and other putative risk factors for knee osteoarthritis pain flares (KOAF) (e.g. knee buckling, injury, mood/stress/social support scores, and footwear) could predict KOAF.Method: People with KOA and previous history of KOAF were selected from a 3 month web-based longitudinal study. KOAF was defined as an increase of ≥ 2 points on a numeric rating scale (compared with background pain) which resolved within 20 days. Predictors assessed at baseline were gender, age, duration of KOA, BMI, pain, knee injury (7 days before), knee buckling (2 days before), Lubben Social Support, Knee Injury and Osteoarthritis Outcome Score, Intermittent and Constant Osteoarthritis Pain score (ICOAP), Positive/Negative Affect Score, and footwear stability/heel height. Outcome was occurrence of any KOAF during the ensuing 30 days. The combined ability of the above variables to predict occurrence of any KOAF was evaluated by multiple logistic regression with a 10-fold cross-validation method to build and internally validate the model. Variables that assessed similar domains were eliminated using receiver operating characteristics curve assessment for best fit.Results: Complete data were available for 313 people (66.6% female, mean ± sd age 62.3 ± 8.2 years, BMI 29.7 ± 6.5 kg/m2). Increasing age, years of osteoarthritis, BMI, background/worst levels of pain, knee injury, knee buckling, ICOAP, and footwear category/heel height significantly predicted the occurrence of KOAF during the following 30 days, with an area under the curve of 0.73 (95% confidence interval 0.67-0.80).Conclusion: A combination of risk factors assessed at baseline, including exposures with potential to vary, successfully predicts the KOAF in the ensuing 30 days.
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Affiliation(s)
- I Atukorala
- Department of Clinical Medicine, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka
| | - A Pathmeswaran
- Department of Public Health, University of Kelaniya, Ragama, Sri Lanka
| | - J Makovey
- Institute of Bone and Joint Research, Kolling Institute, University of Sydney, Sydney, Australia
| | - B Metcalf
- Centre for Health, Exercise and Sports Medicine, Department of Physiotherapy, School of Health Sciences, University of Melbourne, Melbourne, Australia
| | - K L Bennell
- Centre for Health, Exercise and Sports Medicine, Department of Physiotherapy, School of Health Sciences, University of Melbourne, Melbourne, Australia
| | - L March
- Institute of Bone and Joint Research, Kolling Institute, University of Sydney, Sydney, Australia.,Rheumatology Department, Royal North Shore Hospital, Sydney, Australia
| | - T Chang
- Department of Clinical Medicine, Faculty of Medicine, University of Colombo, Colombo, Sri Lanka
| | - Y Zhang
- Division of Rheumatology, Allergy, and Immunology, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - D J Hunter
- Institute of Bone and Joint Research, Kolling Institute, University of Sydney, Sydney, Australia.,Rheumatology Department, Royal North Shore Hospital, Sydney, Australia
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16
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Chang T, Song S, Huang D, Su P, Xiao X, Li H, Liao A, Xiang W. Safety of lymphocytes immunotherapy during the COVID-19 outbreak in Wuhan, China. Arch Gynecol Obstet 2021; 304:567-569. [PMID: 33389097 PMCID: PMC7778486 DOI: 10.1007/s00404-020-05829-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 09/29/2020] [Indexed: 11/25/2022]
Affiliation(s)
- Tianli Chang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Su Song
- Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Donghui Huang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ping Su
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xianjin Xiao
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Honggang Li
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Aihua Liao
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wenpei Xiang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
- Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
- Institute of Reproductive Health, Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
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17
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Makishima H, Yasuda S, Kato H, Kaneko T, Sato H, Chang T, Kasuya G, Yamada S, Tsuji H. PO-1077: Carbon-ion radiotherapy for hepatocellular carcinoma with vascular invasion. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)01094-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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18
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Sato H, Kasuya G, Chang T, Makishima H, Nemoto K, Tsuji H. PH-0115: Five-year outcomes of 51.6 Gy (RBE) in 12-fractionated carbon-ion RT for localized prostate cancer. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)00141-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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19
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Goold S, Tipirneni R, Ayanian J, Beathard E, Chang T, Haggins A, Kieffer E, Kirch M, Kullgren J, Lee S, Lewallen M, Patel M, Rowe Z, Solway E, Clark S. Patterns of Enrollment Churn in Medicaid Expansion, Subsequent Insurance Coverage, and Access to Care: A Longitudinal Study. Health Serv Res 2020. [DOI: 10.1111/1475-6773.13379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Affiliation(s)
- S. Goold
- University of Michigan Ann Arbor MI United States
| | - R. Tipirneni
- University of Michigan Ann Arbor MI United States
| | - J. Ayanian
- University of Michigan Ann Arbor MI United States
| | - E. Beathard
- Institute for Healthcare Policy and Innovation University of Michigan Ann Arbor MI United States
| | - T. Chang
- Department of Family Medicine University of Michigan Ann Arbor MI United States
| | - A. Haggins
- University of Michigan Ann Arbor MI United States
| | - E. Kieffer
- University of Michigan Ann Arbor MI United States
| | - M. Kirch
- University of Michigan Ann Arbor MI United States
| | - J.T. Kullgren
- Division of General Medicine Department of Internal Medicine University of Michigan Ann Arbor MI United States
| | - S. Lee
- Institute for Healthcare Policy and Innovation University of Michigan Ann Arbor MI United States
| | - M. Lewallen
- University of Michigan Ann Arbor MI United States
| | - M. Patel
- School of Public Health University of Michigan Ann Arbor MI United States
| | - Z. Rowe
- Friends of Parkside Detroit MI United States
| | - E. Solway
- Institute for Healthcare Policy and Innovation University of Michigan Ann Arbor MI United States
| | - S.J. Clark
- University of Michigan Ann Arbor MI United States
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20
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Tipirneni R, Kieffer E, Ayanian J, Patel M, Kirch M, Luster J, Beathard E, Haggins A, Kullgren J, Chang T, Clark S, Lee S, Solway E, Rowe Z, Goold S. Longitudinal Trends in Enrollees’ Employment and Student Status after Medicaid Expansion. Health Serv Res 2020. [DOI: 10.1111/1475-6773.13376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
- R. Tipirneni
- University of Michigan Institute for Healthcare Policy and Innovation Ann Arbor MI United States
- University of Michigan Ann Arbor MI United States
| | - E.C. Kieffer
- University of Michigan Institute for Healthcare Policy and Innovation Ann Arbor MI United States
- University of Michigan School of Social Work Ann Arbor MI United States
| | - J.Z. Ayanian
- University of Michigan Institute for Healthcare Policy and Innovation Ann Arbor MI United States
- University of Michigan Gerald R. Ford School of Public Policy Ann Arbor MI United States
- University of Michigan School of Public Health Ann Arbor MI United States
- Department of Internal Medicine University of Michigan Ann Arbor MI United States
| | - M.R. Patel
- University of Michigan Institute for Healthcare Policy and Innovation Ann Arbor MI United States
- University of Michigan School of Public Health Ann Arbor MI United States
| | - M.A. Kirch
- University of Michigan Institute for Healthcare Policy and Innovation Ann Arbor MI United States
| | - J. Luster
- Department of Internal Medicine University of Michigan Ann Arbor MI United States
| | - E. Beathard
- University of Michigan Institute for Healthcare Policy and Innovation Ann Arbor MI United States
| | - A.N. Haggins
- University of Michigan Institute for Healthcare Policy and Innovation Ann Arbor MI United States
- Department of Emergency Medicine University of Michigan Ann Arbor MI United States
| | - J.T. Kullgren
- University of Michigan Institute for Healthcare Policy and Innovation Ann Arbor MI United States
- VA Ann Arbor Center for Clinical Management Research Ann Arbor MI United States
- Center for Bioethics and Social Sciences in Medicine University of Michigan Ann Arbor MI United States
- University of Michigan Medical School and School of Public Health Ann Arbor MI United States
| | - T. Chang
- University of Michigan Institute for Healthcare Policy and Innovation Ann Arbor MI United States
- Department of Family Medicine University of Michigan Ann Arbor MI United States
| | - S.J. Clark
- University of Michigan Institute for Healthcare Policy and Innovation Ann Arbor MI United States
- University of Michigan Ann Arbor MI United States
| | - S. Lee
- University of Michigan Institute for Healthcare Policy and Innovation Ann Arbor MI United States
- University of Michigan Institute for Social Research Ann Arbor MI United States
| | - E. Solway
- University of Michigan Institute for Healthcare Policy and Innovation Ann Arbor MI United States
| | - Z. Rowe
- Friends of Parkside Detroit MI United States
| | - S.D. Goold
- University of Michigan Institute for Healthcare Policy and Innovation Ann Arbor MI United States
- University of Michigan School of Public Health Ann Arbor MI United States
- Department of Internal Medicine University of Michigan Ann Arbor MI United States
- Center for Bioethics and Social Sciences in Medicine University of Michigan Ann Arbor MI United States
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21
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Kountanis JA, Muzik M, Chang T, Langen E, Cassidy R, Mashour GA, Bauer ME. Relationship between postpartum mood disorder and birth experience: a prospective observational study. Int J Obstet Anesth 2020; 44:90-99. [PMID: 32861082 DOI: 10.1016/j.ijoa.2020.07.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 07/16/2020] [Accepted: 07/18/2020] [Indexed: 11/18/2022]
Abstract
BACKGROUND This study aims to investigate the relationship between the birth experience and the risk of developing postpartum depression or post-traumatic stress disorder. METHODS In this prospective, longitudinal, observational study, women were assessed at different time points for depression and post-traumatic stress disorder. The risk of depression or post-traumatic stress disorder based on patient characteristics and specific birth events was assessed within three months postpartum. RESULTS We enrolled 600 women; 426 were eligible for postpartum assessment. At six weeks and three months postpartum, 15.9% and 12.7% screened positive for depression respectively. Positive post-traumatic stress disorder screenings at six weeks and three months postpartum were 6.2% and 5.1% respectively. Twenty-seven women (8.3%) with a negative screening at six weeks converted to a positive depression or post-traumatic stress disorder screening at three months. A pre-existing history of anxiety or depression was associated with an increased risk of developing depression (aOR 2.12, 95% CI 1.30 to 3.47) and post-traumatic stress (aOR 3.15, 95% CI 1.42 to 7.02) within three months postpartum. The risk of developing post-traumatic stress disorder within three months postpartum was also increased among patients experiencing their first delivery (aOR 2.55, 95% CI 1.10 to 5.88) or operative management of postpartum hemorrhage (aOR 4.44, 95% CI 1.16 to 17.02). CONCLUSION Depression and post-traumatic stress symptoms either persisted or had new onset at three months postpartum. Mental health screening and postpartum follow-up after six weeks should be considered in high-risk patients who have a history of psychopathology, nulliparity, or undergo operative management of postpartum hemorrhage.
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Affiliation(s)
- J A Kountanis
- Department of Anesthesiology, Michigan Medicine, 1500 E Medical Center Dr, MI, USA; Department of Obstetrics and Gynecology, Michigan Medicine, 1500 E Medical Center Dr, MI, USA.
| | - M Muzik
- Department of Obstetrics and Gynecology, Michigan Medicine, 1500 E Medical Center Dr, MI, USA; Department of Psychiatry, Michigan Medicine, 1500 E Medical Center Dr, MI, USA; U-M for Healthcare Policy and Innovation, 2800 Plymouth Road, North Campus Research Complex, Building 16, MI, USA
| | - T Chang
- Department of Family Medicine, Michigan Medicine, 1500 E Medical Center Dr, MI, USA; U-M for Healthcare Policy and Innovation, 2800 Plymouth Road, North Campus Research Complex, Building 16, MI, USA
| | - E Langen
- Department of Obstetrics and Gynecology, Michigan Medicine, 1500 E Medical Center Dr, MI, USA
| | - R Cassidy
- Department of Anesthesiology, Michigan Medicine, 1500 E Medical Center Dr, MI, USA
| | - G A Mashour
- Department of Anesthesiology, Michigan Medicine, 1500 E Medical Center Dr, MI, USA
| | - M E Bauer
- Department of Anesthesiology, Michigan Medicine, 1500 E Medical Center Dr, MI, USA; Department of Obstetrics and Gynecology, Michigan Medicine, 1500 E Medical Center Dr, MI, USA
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22
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Wang L, Yu C, Chang T, Zhang M, Song S, Xiong C, Su P, Xiang W. In situ repair abilities of human umbilical cord-derived mesenchymal stem cells and autocrosslinked hyaluronic acid gel complex in rhesus monkeys with intrauterine adhesion. Sci Adv 2020; 6:eaba6357. [PMID: 32494750 PMCID: PMC7244313 DOI: 10.1126/sciadv.aba6357] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 03/13/2020] [Indexed: 05/30/2023]
Abstract
Increasing occurrence of moderate to severe intrauterine adhesion (IUA) is seriously affecting the quality of human life. The aim of the study was to establish IUA models in nonhuman primates and to explore the dual repair effects of human umbilical cord-derived mesenchymal stem cells (huMSCs) loaded on autocrosslinked hyaluronic acid gel (HA-GEL) on endometrial damage and adhesion. Here, we recorded the menstrual cycle data in detail with uterine cavities observed and endometrial tissues detected after intervention, and the thicker endometria, decreased amount of fibrotic formation, increased number of endometrium glands, etc., suggested that both HA-GEL and huMSC/HA-GEL complexes could partially repair IUA caused by mechanical injury, but huMSC/HA-GEL complex transplantation had notable dual repair effects: a reliable antiadhesion property and the promotion of endometrial regeneration.
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Affiliation(s)
| | | | | | - Mengdi Zhang
- Institute of Reproductive Health, Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Su Song
- Institute of Reproductive Health, Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chengliang Xiong
- Institute of Reproductive Health, Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Pin Su
- Institute of Reproductive Health, Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Goonatilaka A, Gomes L, Dayarathna S, Malavige N, Chang T. Association of infection with flaviviruses with occurrence of Guillain-Barre syndrome (GBS). J Neurol Sci 2019. [DOI: 10.1016/j.jns.2019.10.1180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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24
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Wei K, Chang T, Wei W. LB1088 Dengue virus causes both acute and persistent infection in primary human dermal fibroblasts and hair follicle dermal papilla cells. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.06.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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25
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An B, Xia J, Chang T, Wang X, Xu L, Zhang L, Gao X, Chen Y, Li J, Gao H. Genome-wide association study reveals candidate genes associated with body measurement traits in Chinese Wagyu beef cattle. Anim Genet 2019; 50:386-390. [PMID: 31179577 DOI: 10.1111/age.12805] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/19/2019] [Indexed: 01/08/2023]
Abstract
We performed a genome-wide association study to identify candidate genes for body measurement traits in 463 Wagyu beef cattle typed with the Illumina Bovine HD 770K SNP array. At the genome-wide level, we detected 18, five and one SNPs associated with hip height, body height and body length respectively. In total, these SNPs are within or near 11 genes, six of which (PENK, XKR4, IMPAD1, PLAG1, CCND2 and SNTG1) have been reported previously and five of which (CSMD3, LAP3, SYN3, FAM19A5 and TIMP3) are novel candidate genes that we found to be associated with body measurement traits. Further exploration of these candidate genes will facilitate genetic improvement in Chinese Wagyu beef cattle.
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Affiliation(s)
- B An
- Institute of Animal Science, Chinese Academy of Agricultural Science, Beijing, 100193, China
| | - J Xia
- Institute of Basic Medical Science, Westlake Institute for Advanced Study, Hangzhou, 310000, China
| | - T Chang
- Institute of Animal Science, Chinese Academy of Agricultural Science, Beijing, 100193, China
| | - X Wang
- Institute of Animal Science, Chinese Academy of Agricultural Science, Beijing, 100193, China
| | - L Xu
- Institute of Animal Science, Chinese Academy of Agricultural Science, Beijing, 100193, China
| | - L Zhang
- Institute of Animal Science, Chinese Academy of Agricultural Science, Beijing, 100193, China
| | - X Gao
- Institute of Animal Science, Chinese Academy of Agricultural Science, Beijing, 100193, China
| | - Y Chen
- Institute of Animal Science, Chinese Academy of Agricultural Science, Beijing, 100193, China
| | - J Li
- Institute of Animal Science, Chinese Academy of Agricultural Science, Beijing, 100193, China
| | - H Gao
- Institute of Animal Science, Chinese Academy of Agricultural Science, Beijing, 100193, China
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Huang Q, Ahn J, Parisi D, Chang T, Hassager O, Panyukov S, Rubinstein M, Vlassopoulos D. Unexpected Stretching of Entangled Ring Macromolecules. Phys Rev Lett 2019; 122:208001. [PMID: 31172770 PMCID: PMC6778440 DOI: 10.1103/physrevlett.122.208001] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2018] [Indexed: 05/11/2023]
Abstract
In the melt state at equilibrium, entangled nonconcatenated ring macromolecules adapt more compact conformations compared to their linear analogs and do not form an entanglement network. We show here that, when subjected to uniaxial stretching, they exhibit a unique response, which sets them apart from any other polymer. Remarkably, whereas both linear and ring polymers strain-harden, the viscosity of the rings increases dramatically (the melt thickens) at very low stretch rates due to the unraveling of their conformations along the stretching direction. At high rates, stretching leads to viscosity thinning similar to that of entangled linear polymers, albeit with subtle differences.
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Affiliation(s)
- Q Huang
- Department of Chemical and Biochemical Engineering, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | - J Ahn
- Division of Advanced Materials Science and Department of Chemistry, Pohang University of Science and Technology, Pohang 790784, Korea
| | - D Parisi
- Institute of Electronic Structure and Laser, Foundation for Research and Technology Hellas (FORTH), Heraklion, Crete 70013, Greece
- Department of Materials Science and Technology, University of Crete, Heraklion, Crete 71003, Greece
| | - T Chang
- Division of Advanced Materials Science and Department of Chemistry, Pohang University of Science and Technology, Pohang 790784, Korea
| | - O Hassager
- Department of Chemical and Biochemical Engineering, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | - S Panyukov
- P. N. Lebedev Physics Institute, Russian Academy of Sciences, Moscow 117924, Russia
| | - M Rubinstein
- Departments of Mechanical Engineering and Materials Science, Biomedical Engineering, Chemistry, and Physics, Duke University, Durham, North Carolina 27708, USA
| | - D Vlassopoulos
- Institute of Electronic Structure and Laser, Foundation for Research and Technology Hellas (FORTH), Heraklion, Crete 70013, Greece
- Department of Materials Science and Technology, University of Crete, Heraklion, Crete 71003, Greece
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Marcq G, Mach K, Chang T, Trivedi D, Villers A, Liao J. Biopsie optique des lésions planes de cancer de vessie par endomicroscopie confocale laser et analyse histologique : étude descriptive des critères diagnostiques. Prog Urol 2018. [DOI: 10.1016/j.purol.2018.07.189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Rippentrop S, Knudtson J, McLaughlin J, Chang T, Cardenas A, Robinson R. In vitro fertilization outcomes with direct aspiration with single-lumen needles compared to follicular flushing with double-lumen needles for oocyte retrieval in poor responders. Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Chang T, Bondarenko G, Gerami-Naini B, Drenzek J, Rippentrop S, Golos T. An improved 3d in vitro embryo implantation model with nonhuman primate embryo culture beyond day 7 and effect of culture conditions. Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.1064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Jeelani R, Chosed R, Zimmerman S, Chang T, Robinson R, Roudebush W. Blastocoel cell-free DNA content is related to changes in ploidy status (chromosomal loss/gain) in day-5 embryos. Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Mahdi ES, Bouyssi-Kobar M, Jacobs MB, Murnick J, Chang T, Limperopoulos C. Cerebral Perfusion Is Perturbed by Preterm Birth and Brain Injury. AJNR Am J Neuroradiol 2018; 39:1330-1335. [PMID: 29748205 DOI: 10.3174/ajnr.a5669] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Accepted: 03/23/2018] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Early disturbances in systemic and cerebral hemodynamics are thought to mediate prematurity-related brain injury. However, the extent to which CBF is perturbed by preterm birth is unknown. Our aim was to compare global and regional CBF in preterm infants with and without brain injury on conventional MR imaging using arterial spin-labeling during the third trimester of ex utero life and to examine the relationship between clinical risk factors and CBF. MATERIALS AND METHODS We prospectively enrolled preterm infants younger than 32 weeks' gestational age and <1500 g and performed arterial spin-labeling MR imaging studies. Global and regional CBF in the cerebral cortex, thalami, pons, and cerebellum was quantified. Preterm infants were stratified into those with and without structural brain injury. We further categorized preterm infants by brain injury severity: moderate-severe and mild. RESULTS We studied 78 preterm infants: 31 without brain injury and 47 with brain injury (29 with mild and 18 with moderate-severe injury). Global CBF showed a borderline significant increase with increasing gestational age at birth (P = .05) and trended lower in preterm infants with brain injury (P = .07). Similarly, regional CBF was significantly lower in the right thalamus and midpons (P < .05) and trended lower in the midtemporal, left thalamus, and anterior vermis regions (P < .1) in preterm infants with brain injury. Regional CBF in preterm infants with moderate-severe brain injury trended lower in the midpons, right cerebellar hemisphere, and dentate nuclei compared with mild brain injury (P < .1). In addition, a significant, lower regional CBF was associated with ventilation, sepsis, and cesarean delivery (P < .05). CONCLUSIONS We report early disturbances in global and regional CBF in preterm infants following brain injury. Regional cerebral perfusion alterations were evident in the thalamus and pons, suggesting regional vulnerability of the developing cerebro-cerebellar circuitry.
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Affiliation(s)
- E S Mahdi
- From the Developing Brain Research Program (E.S.M., M.B.-K., J.M., C.L.), Department of Diagnostic Imaging and Radiology
| | - M Bouyssi-Kobar
- From the Developing Brain Research Program (E.S.M., M.B.-K., J.M., C.L.), Department of Diagnostic Imaging and Radiology
- Department of Neurology (T.C.)
| | - M B Jacobs
- Department of Epidemiology and Biostatistics (M.B.J.), Children's Research Institute, Children's National Health System, Washington, DC
| | - J Murnick
- From the Developing Brain Research Program (E.S.M., M.B.-K., J.M., C.L.), Department of Diagnostic Imaging and Radiology
| | - T Chang
- Department of Neurology (T.C.)
| | - C Limperopoulos
- From the Developing Brain Research Program (E.S.M., M.B.-K., J.M., C.L.), Department of Diagnostic Imaging and Radiology
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Chang T, Xia J, Xu L, Wang X, Zhu B, Zhang L, Gao X, Chen Y, Li J, Gao H. A genome-wide association study suggests several novel candidate genes for carcass traits in Chinese Simmental beef cattle. Anim Genet 2018; 49:312-316. [DOI: 10.1111/age.12667] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/16/2018] [Indexed: 02/05/2023]
Affiliation(s)
- T. Chang
- Laboratory of Molecular Biology and Bovine Breeding; Institute of Animal Science; Chinese Academy of Agricultural Sciences; Beijing 100193 China
| | - J. Xia
- Laboratory of Molecular Biology and Bovine Breeding; Institute of Animal Science; Chinese Academy of Agricultural Sciences; Beijing 100193 China
| | - L. Xu
- Laboratory of Molecular Biology and Bovine Breeding; Institute of Animal Science; Chinese Academy of Agricultural Sciences; Beijing 100193 China
| | - X. Wang
- Laboratory of Molecular Biology and Bovine Breeding; Institute of Animal Science; Chinese Academy of Agricultural Sciences; Beijing 100193 China
| | - B. Zhu
- Laboratory of Molecular Biology and Bovine Breeding; Institute of Animal Science; Chinese Academy of Agricultural Sciences; Beijing 100193 China
| | - L. Zhang
- Laboratory of Molecular Biology and Bovine Breeding; Institute of Animal Science; Chinese Academy of Agricultural Sciences; Beijing 100193 China
| | - X. Gao
- Laboratory of Molecular Biology and Bovine Breeding; Institute of Animal Science; Chinese Academy of Agricultural Sciences; Beijing 100193 China
| | - Y. Chen
- Laboratory of Molecular Biology and Bovine Breeding; Institute of Animal Science; Chinese Academy of Agricultural Sciences; Beijing 100193 China
| | - J. Li
- Laboratory of Molecular Biology and Bovine Breeding; Institute of Animal Science; Chinese Academy of Agricultural Sciences; Beijing 100193 China
| | - H. Gao
- Laboratory of Molecular Biology and Bovine Breeding; Institute of Animal Science; Chinese Academy of Agricultural Sciences; Beijing 100193 China
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Miao J, Wang X, Bao J, Jin S, Chang T, Xia J, Yang L, Zhu B, Xu L, Zhang L, Gao X, Chen Y, Li J, Gao H. Multimarker and rare variants genomewide association studies for bone weight in Simmental cattle. J Anim Breed Genet 2018; 135:159-169. [DOI: 10.1111/jbg.12326] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Accepted: 03/27/2018] [Indexed: 12/30/2022]
Affiliation(s)
- J. Miao
- Laboratory of Molecular Biology and Bovine Breeding; Institute of Animal Sciences; Chinese Academy of Agricultural Sciences; Beijing China
- College of Animal Sciences; Fujian Agriculture and Forestry University; Fujian China
| | - X. Wang
- Laboratory of Molecular Biology and Bovine Breeding; Institute of Animal Sciences; Chinese Academy of Agricultural Sciences; Beijing China
| | - J. Bao
- Veterinary Bureau of Wulagai Precinct in Xilin Gol League; Wulagai China
| | - S. Jin
- Veterinary Bureau of Wulagai Precinct in Xilin Gol League; Wulagai China
| | - T. Chang
- Laboratory of Molecular Biology and Bovine Breeding; Institute of Animal Sciences; Chinese Academy of Agricultural Sciences; Beijing China
| | - J. Xia
- Laboratory of Molecular Biology and Bovine Breeding; Institute of Animal Sciences; Chinese Academy of Agricultural Sciences; Beijing China
| | - L. Yang
- Laboratory of Molecular Biology and Bovine Breeding; Institute of Animal Sciences; Chinese Academy of Agricultural Sciences; Beijing China
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province; Sichuan Agricultural University; Sichuan China
| | - B. Zhu
- Laboratory of Molecular Biology and Bovine Breeding; Institute of Animal Sciences; Chinese Academy of Agricultural Sciences; Beijing China
| | - L. Xu
- Laboratory of Molecular Biology and Bovine Breeding; Institute of Animal Sciences; Chinese Academy of Agricultural Sciences; Beijing China
| | - L. Zhang
- Laboratory of Molecular Biology and Bovine Breeding; Institute of Animal Sciences; Chinese Academy of Agricultural Sciences; Beijing China
| | - X. Gao
- Laboratory of Molecular Biology and Bovine Breeding; Institute of Animal Sciences; Chinese Academy of Agricultural Sciences; Beijing China
| | - Y. Chen
- Laboratory of Molecular Biology and Bovine Breeding; Institute of Animal Sciences; Chinese Academy of Agricultural Sciences; Beijing China
| | - J. Li
- Laboratory of Molecular Biology and Bovine Breeding; Institute of Animal Sciences; Chinese Academy of Agricultural Sciences; Beijing China
| | - H. Gao
- Laboratory of Molecular Biology and Bovine Breeding; Institute of Animal Sciences; Chinese Academy of Agricultural Sciences; Beijing China
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Chang T, Xu Z, Shamp S, Biswas T, Linden P, Kazakov J, Dowlati A, Perry Y, Machtay M. Are We Doing Enough? Examining the Failure Pattern Post-SBRT in T2N0 Non–small Cell Lung Cancer Patients: Single Institution Retrospective Review. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Chang T, Darshani A, Manikavasagam P, Arambepola C. Does formal teaching-learning of end-of-life care impact on the knowledge and attitudes of doctors treating patients at the end-of-life? J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Gerges B, Lu C, Reid S, Chou D, Chang T, Condous G. Sonographic evaluation of immobility of normal and endometriotic ovary in detection of deep endometriosis. Ultrasound Obstet Gynecol 2017; 49:793-798. [PMID: 27281370 DOI: 10.1002/uog.15990] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Revised: 05/23/2016] [Accepted: 06/05/2016] [Indexed: 06/06/2023]
Abstract
OBJECTIVES To examine the association between ovarian immobility and presence of endometriomas and assess the diagnostic accuracy of transvaginal sonographic (TVS) ovarian immobility in the detection of deep infiltrating endometriosis (DIE). METHODS This was a multicenter prospective observational study of women presenting with chronic pelvic pain from January 2009 to March 2015. Women with or without history of endometriosis who were scheduled to undergo laparoscopic surgery for endometriosis gave a detailed history and underwent specialized TVS in a tertiary referral unit prior to laparoscopy. During TVS, ovarian mobility and the presence of endometriomas were assessed. The relationship between TVS ovarian mobility, with or without endometriomas, and DIE was correlated with the gold standard, diagnosis of endometriosis at laparoscopy. RESULTS Included in the analysis were 265 women with preoperative TVS and laparoscopic outcomes. Ovarian immobility on TVS was significantly associated with presence of endometriomas at surgery, with a prevalence of 12.2%, 10.8% and 52.7% for fixation of the left ovary only, the right ovary only and bilateral ovaries, respectively, compared with 4.2%, 3.7% and 7.3% for normal ovaries. The sensitivity, specificity, positive (PPV) and negative (NPV) predictive values and positive and negative likelihood ratios of TVS ovarian immobility for diagnosis at surgery of immobility of ovaries with endometriomas in the left ovary only were 44.4%, 92.3%, 44.4%, 92.3%, 5.8, 0.6, in the right ovary only were 50.0%, 98.5%, 80.0%, 94.2%, 33.0, 0.5 and bilaterally were 74.4%, 68.6%, 72.5%, 70.6%, 2.4, 0.4, while those for diagnosis of immobility of normal ovaries were 25.0%, 87.9%, 8.3%, 96.4%, 2.1, 0.9 for left ovary only, 14.3%, 92.9%, 7.1%, 96.6%, 2.0, 0.9 for right ovary only and 35.7%, 97.2%, 50.0%, 95.0%, 12.6, 0.7 bilaterally, respectively (P < 0.05 except for normal left and right ovaries with P = 0.2 and 0.4, respectively). The sensitivity, specificity, PPV and NPV for performance of ovarian immobility in the prediction of DIE for all women were 58.3%, 74.1%, 60.6%, 72.2% and in the prediction of need for bowel surgery were 78.2%, 71.1%, 41.3%, 92.6%, respectively. CONCLUSIONS There is a significant association between ovarian immobility and the presence of endometriomas. Ovarian immobility as a sonographic 'soft marker' of DIE performs better in the presence of endometriomas compared with in normal ovaries. Copyright © 2016 ISUOG. Published by John Wiley & Sons Ltd.
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Affiliation(s)
- B Gerges
- Acute Gynaecology, Early Pregnancy and Advanced Endosurgery Unit, Sydney Medical School Nepean, University of Sydney, Nepean Hospital, Penrith, NSW, Australia
| | - C Lu
- Department of Computer Sciences, University of Wales, Aberystwyth, UK
| | - S Reid
- Acute Gynaecology, Early Pregnancy and Advanced Endosurgery Unit, Sydney Medical School Nepean, University of Sydney, Nepean Hospital, Penrith, NSW, Australia
| | - D Chou
- Sydney Women's Endosurgery Centre (SWEC), Hurstville, NSW, Australia
| | - T Chang
- Nureva Women's Specialist Health, Campbelltown, NSW, Australia
- Laparoscopic Surgery for General Gynaecologist (LaSGeG), Sydney, NSW, Australia
| | - G Condous
- Acute Gynaecology, Early Pregnancy and Advanced Endosurgery Unit, Sydney Medical School Nepean, University of Sydney, Nepean Hospital, Penrith, NSW, Australia
- Laparoscopic Surgery for General Gynaecologist (LaSGeG), Sydney, NSW, Australia
- OMNI Gynaecological Care Centre for Women's Ultrasound and Early Pregnancy, St Leonards, NSW, Australia
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Dilrukshi MDSA, Sandakumari GVN, Abeysundara PK, Chang T. Craniopharyngioma presenting with severe hyponatremia, hyponatremia-induced myopathy, and panhypopituitarism: a case report. J Med Case Rep 2017; 11:31. [PMID: 28160775 PMCID: PMC5292142 DOI: 10.1186/s13256-017-1210-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2016] [Accepted: 01/12/2017] [Indexed: 11/10/2022] Open
Abstract
Background Craniopharyngiomas are rare intracranial tumors commonly presenting with neurological symptoms. Reports of severe hyponatremia as a presenting manifestation of a craniopharyngioma and hyponatremia-induced myopathy are rare. We report the case of a patient with craniopharyngioma presenting with severe hyponatremia, panhypopituitarism, and hyponatremia-induced myopathy. Case presentation A 52-year-old Sri Lankan man presented with anorexia, nausea, fatigue, generalized muscle weakness, and cramps for 1 week. The onset of his illness had been preceded by vomiting and diarrhea for 1 day which he attributed to food poisoning. On examination, he had an apathetic disposition with a generalized “sallow complexion.” He was not dehydrated. Apart from reduced muscle power (4/5) and hyporeflexia, the neurological examination was normal. His serum sodium was 102 mmol/l; potassium 4.1 mmol/l; chloride 63 mmol/l; plasma osmolality 272 mosm/KgH2O; urine osmolality 642 mosm/KgH2O; and urine sodium 79 mmol/l. His creatine phosphokinase was 12,400 U/l, lactate dehydrogenase 628 U/l, aspartate aminotransferase 360 U/l, and alanine aminotransferase 64 U/l. His hormone profile revealed panhypopituitarism. An electromyogram showed nonspecific abnormalities while a muscle biopsy did not show any pathology. Magnetic resonance imaging of his brain demonstrated a well-defined craniopharyngioma with suprasellar extension. His pituitary gland was compressed and the pituitary stalk was displaced by the tumor. He had marked improvement in muscle power and rapid reduction of serum creatine phosphokinase levels paralleling the correction of severe hyponatremia, even before the initiation of hormone replacement. Conclusions This case illustrates the rare presentation of severe hyponatremia and hyponatremia-induced myopathy in patients with craniopharyngioma, awareness of which would facilitate early appropriate investigations and treatment.
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Affiliation(s)
- M D S A Dilrukshi
- University Medical Unit, National Hospital of Sri Lanka, Colombo 10, Sri Lanka.
| | - G V N Sandakumari
- University Medical Unit, National Hospital of Sri Lanka, Colombo 10, Sri Lanka
| | - P K Abeysundara
- University Medical Unit, National Hospital of Sri Lanka, Colombo 10, Sri Lanka
| | - T Chang
- University Medical Unit, National Hospital of Sri Lanka, Colombo 10, Sri Lanka.,Department of Clinical Medicine, University of Colombo, Colombo, Sri Lanka
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Gerges B, Reid S, Chou D, Chang T, Condous G. Prospective Validation of the Ultrasound Based Endometriosis Staging System (UBESS). J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Kim Y, Patwardhan K, Beichel R, Smith B, Ulrich E, Mart C, Chang T, Plichta K, Buatti J. Impact of Contouring Accuracy on Expected Tumor Control Probability for Head and Neck Cancer: Semiautomated Segmentation Versus Manual Contouring. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Abstract
The distribution of Lipiodol in the liver and lungs following arterial or portal injection was studied in normal (n = 55) and cirrhotic rats (n = 20). Using magnified xeroradiography and radioisotope labeled tracers, it was found that Lipiodol was deposited mainly in the liver and lung after either arterial or portal administration. In control rats after arterial injection, deposits in the lung peaked after 2 hours and gradually declined over 48 hours; whereas after portal injection, the deposit steadily increased for 48 hours. Twenty-five percent of cirrhotic rats demonstrated a Lipiodol-induced miliary pattern in the lung. An increased number of portosystemic shunts in cirrhotic rats was also noted. These results suggest that cirrhosis of the liver may be a potential risk factor for developing pulmonary complications after Lipiodol administration.
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Atukorala I, Pathmeswaran A, Chang T, Zhang Y, Hunter D. SAT0452 Do Traditional Risk Factors for Knee Osteoarthritis Predict Pain Flares in Knee Osteoarthritis?: Table 1. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.3335] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Chua J, Malavige G, Chang T, Ng M. Minimisation study of dengue prognostic biomarker panel test. Int J Infect Dis 2016. [DOI: 10.1016/j.ijid.2016.02.923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Lohitharajah J, Malavige G, Arembepola C, Wanigasinghe J, Gamage R, Gunaratne P, Ratnayake P, Chang T. Viral aetiologies of acute encephalitis in a hospital-based population in Sri Lanka. Int J Infect Dis 2016. [DOI: 10.1016/j.ijid.2016.02.943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Ge F, Lin H, Liu Y, Li M, Guo R, Ruan Z, Chang T. Dual antiplatelet therapy after stroke or transient ischaemic attack - how long to treat? The duration of aspirin plus clopidogrel in stroke or transient ischaemic attack: a systematic review and meta-analysis. Eur J Neurol 2016; 23:1051-7. [PMID: 27021849 DOI: 10.1111/ene.12982] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Accepted: 01/18/2016] [Indexed: 11/27/2022]
Affiliation(s)
- F. Ge
- Department of Neurology; Tangdu Hospital; Fourth Military Medical University; Shaanxi Province China
| | - H. Lin
- Department of Neurology; Tangdu Hospital; Fourth Military Medical University; Shaanxi Province China
| | - Y. Liu
- Department of Neurology; Tangdu Hospital; Fourth Military Medical University; Shaanxi Province China
| | - M. Li
- Department of Neurology; Tangdu Hospital; Fourth Military Medical University; Shaanxi Province China
| | - R. Guo
- Department of Neurology; Tangdu Hospital; Fourth Military Medical University; Shaanxi Province China
| | - Z. Ruan
- Department of Neurology; Tangdu Hospital; Fourth Military Medical University; Shaanxi Province China
| | - T. Chang
- Department of Neurology; Tangdu Hospital; Fourth Military Medical University; Shaanxi Province China
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Kaushal P, Caridi T, Lynskey G, Buckley D, Chang T, Field D, Banovac F, Spies J, Kim A. Complications of prolonged arterial sheath placement after visceral angiography. J Vasc Interv Radiol 2016. [DOI: 10.1016/j.jvir.2015.12.414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Hijaz S, Solomon A, Kosanovich C, Lynskey G, Buckley D, Caridi T, Chang T, Kim A. MRI characteristics of HCC and response to drug-eluting bead TACE. J Vasc Interv Radiol 2016. [DOI: 10.1016/j.jvir.2015.12.333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Dasilva D, Sparks A, Kim A, Lynskey G, Spies J, Chang T, Buckley D, Caridi T. Labeling interventional radiology drains to prevent medical errors and improve patient care. J Vasc Interv Radiol 2016. [DOI: 10.1016/j.jvir.2015.12.379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Chang T. Evaluation of possible predicting factors of adenotonsillectomy for pediatric OSAS. Sleep Med 2015. [DOI: 10.1016/j.sleep.2015.02.471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Hopkins PA, Little H, Ward S, Harrington C, Feehan A, Peters K, Mcloone A, Dowling M, Chang T, Bell C. The clinical and operational consequences of prolonged occupancy strain and the use of non-intensive care beds to deliver critical care in a central london teaching hospital. Intensive Care Med Exp 2015. [PMCID: PMC4796228 DOI: 10.1186/2197-425x-3-s1-a477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Chang T, Moloney T, Jacobson L, Malavige N, Lohitharajah J, Peach S, Woodhall M, Waters P, Vincent A. Autoantibody-associated autoimmune-encephalitis in Sri Lankan patients. J Neurol Sci 2015. [DOI: 10.1016/j.jns.2015.08.675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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