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Tang J, Yang B, Song G, Zhang X, Wang Z, Mo Z, Zan L, Wang H. Effect of bovine myosin heavy chain 3 on proliferation and differentiation of myoblast. Anim Biotechnol 2023; 34:4337-4346. [PMID: 36441630 DOI: 10.1080/10495398.2022.2149549] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The myosin heavy chain 3 (MYH3) gene is an essential gene that affects muscle development. This study aimed to discuss the expression characteristics of the MYH3 gene and its effect on the proliferation and differentiation of bovine myoblasts. Quantitative real time-PCR results display that the expression level of MYH3 was higher in muscle tissue, and the expression increased in the early stage of myoblast differentiation. Interfering with the MYH3 gene in myoblasts resulted in fewer EDU-positive cells and decreased expression of proliferation marker genes. Interference with MYH3 can also affect the differentiation process of myoblasts. Regarding phenotype, myotube differentiation in the interference group was slowed or even stopped. Interference with the expression of MYH3 could significantly reduce the expression of myogenic differentiation marker genes. The above results show that MYH3 is mainly expressed in muscle tissue and is highly expressed in the early stage of differentiation of bovine myoblasts, and interfering with the MYH3 can promote the proliferation and inhibit the differentiation of bovine myoblasts. This study provides a theoretical basis for revealing the regulatory process of bovine myoblast proliferation and differentiation and bovine molecular breeding.
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Affiliation(s)
- Jiayu Tang
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Bohua Yang
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Guibing Song
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Xinyi Zhang
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Zhicong Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Zhaoyi Mo
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Linsen Zan
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
- National Beef Cattle Improvement Center, Yangling, China
| | - Hongbao Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
- National Beef Cattle Improvement Center, Yangling, China
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Fitz FF, Bortolini MAT, Pereira GMV, Salerno GRF, Castro RA. PEOPLE: Lifestyle and comorbidities as risk factors for pelvic organ prolapse-a systematic review and meta-analysis PEOPLE: PElvic Organ Prolapse Lifestyle comorbiditiEs. Int Urogynecol J 2023; 34:2007-2032. [PMID: 37256322 DOI: 10.1007/s00192-023-05569-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 05/02/2023] [Indexed: 06/01/2023]
Abstract
INTRODUCTION AND HYPOTHESIS The literature is scarce regarding the effects of comorbidities, clinical parameters, and lifestyle as risk factors for pelvic organ prolapse (POP). This study was performed to systematically review the literature related to body mass index (BMI), waist circumference, diabetes mellitus (DM), hypertension (HT), dyslipidemia, chronic constipation, smoking, chronic cough, occupation, and striae and varicose veins as determinants for POP. METHODS Search terms in accordance with Medical Subject Headings were used in PubMed, Embase, LILACS, and the Cochrane Library. Clinical comparative studies between women with and without POP and containing demographic and/or clinical raw data related to lifestyle and/or comorbidities were included. The ROBINS-I (risk of bias in non-randomized studies of interventions) instrument was used. Fixed-effects and random-effects models were used for homogeneous and heterogeneous studies, respectively. RESULTS Forty-three studies were included in the meta-analysis. BMI < 25 kg/m2 was found to be a protective factor for POP [OR 0.71 (0.51, 0.99); p = 0.04], and BMI > 30 kg/m2 was a risk factor for POP [OR 1.44 (1.37, 1.52); p < 0.00001]. Waist circumference (≥ 88 cm) was reported as a risk factor for POP [OR 1.80 (1.37, 2.38); p < 0.00001], along with HT [OR 1.18 (1.09, 1.27); p = 0.04], constipation [OR 1.77 (1.23, 2.54); p < 0.00001], occupation [OR 1.86 (1.21, 2.86); p < 0.00001], persistent cough [OR 1.52 (1.18, 1.94); p < 0.0001]), and varicose veins [OR 2.01 (1.50, 2.70); p = 0.12]. CONCLUSIONS BMI < 25 kg/m2 is protective while BMI > 30 kg/m2 is a risk factor for POP. Large waist circumference, dyslipidemia, HT, constipation, occupation, persistent cough, and varicose veins are also determinants for POP.
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Affiliation(s)
- Fátima Faní Fitz
- Department of Gynecology, Universidade Federal de São Paulo, Rua Napoleão de Barros, 608 - Vila Clementino, São Paulo, SP, CEP 04024-002, Brazil.
| | - Maria Augusta Tezelli Bortolini
- Department of Gynecology, Universidade Federal de São Paulo, Rua Napoleão de Barros, 608 - Vila Clementino, São Paulo, SP, CEP 04024-002, Brazil
| | - Gláucia Miranda Varella Pereira
- Department of Obstetrics and Gynecology, Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas, SP, Brazil
| | - Gisela Rosa Franco Salerno
- Department of Gynecology, Universidade Federal de São Paulo, Rua Napoleão de Barros, 608 - Vila Clementino, São Paulo, SP, CEP 04024-002, Brazil
| | - Rodrigo Aquino Castro
- Department of Gynecology, Universidade Federal de São Paulo, Rua Napoleão de Barros, 608 - Vila Clementino, São Paulo, SP, CEP 04024-002, Brazil
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Zhang X, To KV, Jarvis TR, Campbell YL, Hendrix JD, Suman SP, Li S, Antonelo DS, Zhai W, Chen J, Zhu H, Schilling MW. Broiler genetics influences proteome profiles of normal and woody breast muscle. Poult Sci 2021; 100:100994. [PMID: 33610896 PMCID: PMC7905473 DOI: 10.1016/j.psj.2021.01.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 12/22/2020] [Accepted: 01/07/2021] [Indexed: 01/28/2023] Open
Abstract
Wooden or woody breast (WB) is a myopathy of the pectoralis major in fast-growing broilers that influences the quality of breast meat and causes an economic loss in the poultry industry. The objective of this study was to evaluate growth and proteome differences between 5 genetic strains of broilers that yield WB and normal breast (NB) meat. Eight-week-old broilers were evaluated for the WB myopathy and divided into NB and WB groups. Differential expression of proteins was analyzed using 2-dimensional gel electrophoresis and LC-MS/MS to elucidate the mechanism behind the breast myopathy because of the genetic backgrounds of the birds. The percentages of birds with WB were 61.3, 68.8, 46.9, 45.2, and 87.5% for strains 1-5, respectively, indicating variability in WB myopathy among broiler strains. Birds from strains 1, 3, and 5 in the WB group were heavier than those in the NB group (P < 0.05). Woody breast meat from all strains were heavier than NB meat (P < 0.05). Within WB, strain 5 had a greater breast yield than strains 1, 3, and 4 (P < 0.0001). Woody breast from strains 2, 3, 4, and 5 had a greater breast yield than NB (P < 0.05). Six proteins were more abundant in NB of strain 5 than those of strains 2, 3, and 4, and these proteins were related to muscle growth, regeneration, contraction, apoptosis, and oxidative stress. Within WB, 14 proteins were differentially expressed between strain 5 and other strains, suggesting high protein synthesis, weak structural integrity, intense contraction, and oxidative stress in strain 5 birds. The differences between WB from strain 3 and strains 1, 2, and 4 were mainly glycolytic. In conclusion, protein profiles of broiler breast differed because of both broiler genetics and the presence of WB myopathy.
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Affiliation(s)
- Xue Zhang
- Department of Food Science, Nutrition, and Health Promotion, Mississippi State University, Mississippi State 39762, USA
| | - K Virellia To
- Department of Food Science, Nutrition, and Health Promotion, Mississippi State University, Mississippi State 39762, USA
| | - Tessa R Jarvis
- Department of Animal Science, Iowa State University, Ames 50011, USA
| | - Yan L Campbell
- Department of Food Science, Nutrition, and Health Promotion, Mississippi State University, Mississippi State 39762, USA
| | - Jasmine D Hendrix
- Department of Food Science, Nutrition, and Health Promotion, Mississippi State University, Mississippi State 39762, USA
| | - Surendranath P Suman
- Department of Animal and Food Sciences, University of Kentucky, Lexington 40546, USA
| | - Shuting Li
- Department of Animal and Food Sciences, University of Kentucky, Lexington 40546, USA
| | - Daniel S Antonelo
- Department of Animal Nutrition and Production, College of Veterinary Medicine and Animal Science, University of Sao Paulo, Pirassununga/SP 13635-900, Brazil
| | - Wei Zhai
- Department of Poultry Science, Mississippi State University, Mississippi State 39762, USA
| | - Jing Chen
- Proteomics Core Facility, University of Kentucky, Lexington 40506, USA
| | - Haining Zhu
- Proteomics Core Facility, University of Kentucky, Lexington 40506, USA
| | - M Wes Schilling
- Department of Food Science, Nutrition, and Health Promotion, Mississippi State University, Mississippi State 39762, USA.
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Ubaida-Mohien C, Lyashkov A, Gonzalez-Freire M, Tharakan R, Shardell M, Moaddel R, Semba RD, Chia CW, Gorospe M, Sen R, Ferrucci L. Discovery proteomics in aging human skeletal muscle finds change in spliceosome, immunity, proteostasis and mitochondria. eLife 2019; 8:49874. [PMID: 31642809 PMCID: PMC6810669 DOI: 10.7554/elife.49874] [Citation(s) in RCA: 109] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 09/16/2019] [Indexed: 12/19/2022] Open
Abstract
A decline of skeletal muscle strength with aging is a primary cause of mobility loss and frailty in older persons, but the molecular mechanisms of such decline are not understood. Here, we performed quantitative proteomic analysis from skeletal muscle collected from 58 healthy persons aged 20 to 87 years. In muscle from older persons, ribosomal proteins and proteins related to energetic metabolism, including those related to the TCA cycle, mitochondria respiration, and glycolysis, were underrepresented, while proteins implicated in innate and adaptive immunity, proteostasis, and alternative splicing were overrepresented. Consistent with reports in animal models, older human muscle was characterized by deranged energetic metabolism, a pro-inflammatory environment and increased proteolysis. Changes in alternative splicing with aging were confirmed by RNA-seq analysis. We propose that changes in the splicing machinery enables muscle cells to respond to a rise in damage with aging. As humans age, their muscles become weaker, making it increasingly harder for them to move, a condition known as sarcopenia. Analyzing old muscles in other animals revealed that they produce energy inefficiently, they destroy more proteins than younger muscles, and they have high levels of molecules that cause inflammation. These characteristics may be involved in causing muscle weakness. Proteomics is the study of proteins, the molecules that play many roles in keeping the body working: for example, they accelerate chemical reactions, participate in copying DNA and help cells respond to stimuli. Using proteomics, it is possible to examine a large number of the different proteins in a tissue, which can provide information about the state of that tissue. Ubaida-Mohien et al. used this approach to answer the question of why muscles become weaker with age. First, they analyzed the levels of all the proteins found in skeletal muscle collected from 58 healthy volunteers between 20 and 87 years of age. This revealed that the muscles of older people have fewer copies of the proteins that make up ribosomes – the cellular machines that produce new proteins – and fewer proteins involved in providing the cell with chemical energy. In contrast, proteins implicated in the immune system, in the maintenance of existing proteins, and in processing other molecules called RNAs were more abundant in older muscles. Ubaida-Mohien et al. then looked more closely at changes involving RNA processing. Cells make proteins by copying DNA sequences into an RNA template and using this template to instruct the ribosomes on how to make the specific protein. Before the RNA can be ‘read’ by a ribosome, however, some parts must be cut out and others added, which can lead to different versions of the final RNA, also known as alternative transcripts. In order to check whether the difference in the levels of proteins that process RNAs was affecting the RNAs being produced, Ubaida-Mohien et al. extracted the RNAs from older and younger muscles and compared them. This showed that the RNA in older people had more alternative transcripts, confirming that the change in protein levels was having downstream effects. Currently, it is not possible to prevent or delay the loss of muscle strength associated with aging. Understanding how the protein make-up of muscles changes as humans grow older may help find new ways to prevent and perhaps even reverse this decline.
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Affiliation(s)
- Ceereena Ubaida-Mohien
- Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, United States
| | - Alexey Lyashkov
- Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, United States
| | - Marta Gonzalez-Freire
- Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, United States
| | - Ravi Tharakan
- Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, United States
| | - Michelle Shardell
- Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, United States
| | - Ruin Moaddel
- Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, United States
| | | | - Chee W Chia
- Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, United States
| | - Myriam Gorospe
- Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, United States
| | - Ranjan Sen
- Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, United States
| | - Luigi Ferrucci
- Intramural Research Program, National Institute on Aging, National Institutes of Health, Baltimore, United States
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Niu F, Wang L, Liu X, Wang H, Yang J, Liu Y, Chen L. Genetic diversity of MYH3 gene associated with growth and carcass traits in Chinese Qinchuan cattle. Mol Biol Rep 2013; 40:5635-43. [PMID: 24065521 DOI: 10.1007/s11033-013-2665-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2013] [Accepted: 09/14/2013] [Indexed: 10/26/2022]
Abstract
MYH3, whose function is to convert chemical energy to mechanical energy through ATP hydrolysis, is mainly expressed in skeletal muscle at various stages and is indispensable in the procedure of development of skeletal muscle and heart. In the study, genetic variations and genotypes of MYH 3 gene in a total of 365 Qinchuan cattles were analyzed by polymerase chain reaction-restriction fragment length polymorphism, as well as verified the effect on growth and carcass traits. After PCR products were digested by restriction enzymes, eight SNPs were identified and individuals were genotyped. It showed that the SNPs at nucleotides were all in low linkage disequilibrium, therefore no dominated haplotype was found in the population. The result of statistic analysis indicated seven SNPs were significantly associated with growth and carcass traits (P < 0.05, N = 365) except locus G13791A. To sum up, the result of the study proved that polymorphisms in MYH3 gene are associated with the growth performance of Chinese Qinchuan cattle, so the variations of the gene could be used as possible molecular assisted-makers in the beef cattle breeding program and management.
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Affiliation(s)
- Fubiao Niu
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, Shaanxi, People's Republic of China
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Wang L, Liu X, Niu F, Wang H, He H, Gu Y. Single nucleotide polymorphisms, haplotypes and combined genotypes in MYH₃ gene and their associations with growth and carcass traits in Qinchuan cattle. Mol Biol Rep 2012; 40:417-26. [PMID: 23073773 PMCID: PMC3518803 DOI: 10.1007/s11033-012-2076-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2012] [Accepted: 10/03/2012] [Indexed: 10/27/2022]
Abstract
MYH₃ is a major contractile protein which converts chemical energy into mechanical energy through the ATP hydrolysis. MYH₃ is mainly expressed in the skeletal muscle in different stages especially embryonic period, and it has a role in the development of skeletal muscle and heart. In this study, polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) was applied to analyze the genetic variations of the MYH₃ gene and verify the effect on growth and carcass traits in a total of 365 Qinchuan cattles. The PCR product was digested with some restriction enzyme and demonstrated the polymorphism in the population, the single nucleotide polymorphisms (SNPs) at nucleotides g. +1215T>C, g. +3377C>T, and g. +28625C>T were in linkage disequilibrium with each other. The result of haplotype analysis showed that nineteen different haplotypes were identified among the five SNPs. The statistical analyses indicated that the five SNPs were significant association with growth and carcass traits (P < 0.05, N = 365); whereas the five SNPs were no significant association between 18 combined genotypes of MYH₃ gene and growth and carcass traits. Taken together, our results provide the evidence that polymorphisms in MYH₃ are associated with growth and carcass traits in Qinchuan cattle, and may be used as a possible candidate for marker-assisted selection and management in beef cattle breeding program.
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Affiliation(s)
- Lijun Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
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Identification of six loci associated with pelvic organ prolapse using genome-wide association analysis. Obstet Gynecol 2012; 118:1345-1353. [PMID: 22105264 DOI: 10.1097/aog.0b013e318236f4b5] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
OBJECTIVE There is evidence that both environmental and genetic factors contribute to pelvic organ prolapse. We conducted a genome-wide association study to investigate whether common genetic variants modify the risk of pelvic organ prolapse. METHODS We recruited women who had been evaluated and treated for pelvic organ prolapse at the University of Utah from 1996 to 2008 and their affected female relatives. Those in the case group were genotyped on the Illumina 550K platform. We genetically matched 2,976 white control participants available from Illumina as the control group. Association tests were adjusted for related participants using two different software programs: EMMAX and Genie. Confirmation of findings was performed in a cohort of Dutch women (n=76) with recurrent pelvic organ prolapse and family history of pelvic organ prolapse. RESULTS The Utah study sample included 115 case group participants treated for pelvic organ prolapse, in most case group participants with surgery (n=78) or repeat surgery (n=35). Results from association analyses using EMMAX software identified five single-nucleotide polymorphisms (SNPs) significantly associated with pelvic organ prolapse (P<1×10). Independent association analysis with Genie software identified three of the same SNPs and one additional SNP. The six SNPs were located at 4q21 (rs1455311), 8q24 (rs1036819), 9q22 (rs430794), 15q11 (rs8027714), 20p13 (rs1810636), and 21q22 (rs2236479). Nominally significant findings (P<.05) or findings trending toward significance (P<.1) were observed for five of the six SNPs in the Dutch cohort. CONCLUSION Six SNPs have been identified that are significantly associated with pelvic organ prolapse in high-risk familial case group participants and that provide evidence for a genetic contribution to pelvic organ prolapse. LEVEL OF EVIDENCE II.
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Bortolini MAT, Rizk DEE. Genetics of pelvic organ prolapse: crossing the bridge between bench and bedside in urogynecologic research. Int Urogynecol J 2011; 22:1211-9. [PMID: 21789659 DOI: 10.1007/s00192-011-1502-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2011] [Accepted: 07/11/2011] [Indexed: 12/22/2022]
Abstract
An increasing number of scientists have studied the molecular and biochemical basis of pelvic organ prolapse (POP). The extracellular matrix content of the pelvic floor is the major focus of those investigations and pointed for potential molecular markers of the dysfunction. The identification of women predisposed to develop POP would help in the patients' management and care. This article includes a critical analysis of the literature up to now; discusses implications for future research and the role of the genetics in POP.
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Affiliation(s)
- Maria Augusta Tezelli Bortolini
- Division of Urogynecology and Reconstructive Pelvic Surgery, Department of Gynecology, Federal University of São Paulo, Borges Lagoa, 783 Cj. 31, 04038-031, São Paulo, SP, Brazil.
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Tremollieres F. [Connective tissue and prolapse genesis]. ACTA ACUST UNITED AC 2010; 38:388-93. [PMID: 20576547 DOI: 10.1016/j.gyobfe.2010.04.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2009] [Accepted: 03/12/2010] [Indexed: 12/26/2022]
Abstract
The pathophysiology of pelvic floor disorders still remains not well understood. Increasing age as well as vaginal multiparity are the main commonly accepted factors. The hypothesis of a defect of connective tissues of the pelvic floor with aging due to collagen deficiency and/or elastic fiber degradation is often highlighted. The issue of a potential protective role of HRT is also discussed although the recent results from the WHI would suggest a negative impact of HRT on urinary incontinence, especially when HRT is initiated in elderly women, far from the menopause. Nevertheless, environmental factors cannot explain the full pathogenesis of pelvic organ prolapse (POP) and the contribution of genetic factors to the development of pelvic floor disorders is widely recognized. Support for a genetic influence on POP derives from reports suggesting that heritability is a strong contributing factor and a familial history of POP is considered as a classical risk factor. However, the characterization of the underlying molecular mechanisms remains limited, since POP may be considered the end result of a multifactorial process leading to destruction of vaginal wall connective tissue. Experimental studies in mice with null mutations in the genes encoding different putative factors involved in elastic fibers remodeling and homeostasis are crucial in the understanding of the pathogenesis of POP. Mice with null mutation in the gene encoding lysyl oxidase-like 1 (LOXL1) or fibulin-5, demonstrate signs of elastinopathy including the development of a POP in the postpartum. Likewise, homeobox genes such as HOXA11, which are essential in the embryonic development of the urogenital tract might also be involved in the pathogenesis of POP. The better understanding of the underlying determinants of pelvic floor disorders with a special focus on genetic factors may offer new therapeutic strategies, in addition to or replacement of surgical procedures.
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Affiliation(s)
- F Tremollieres
- MCU-PH en médecine et biologie du développement et de la reproduction, centre de ménopause, hôpital Paule-de-Viguier, Toulouse, France.
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Kunugiza Y, Tomita T, Moritomo H, Yoshikawa H. A hydrocellular foam dressing versus gauze: effects on the healing of rat excisional wounds. J Wound Care 2010; 19:10-4. [PMID: 20081568 DOI: 10.12968/jowc.2010.19.1.46093] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
OBJECTIVE Hydrocellular foam dressings are characterised by their ability to create a moist wound healing environment and absorb high amounts of exudate. In this study, we examined the effect of a hydrocellular foam dressing on the healing of rat excisional wounds. METHOD One full-thickness wound was made on the back of rats and wounds were treated with hydrocellular foam dressing or gauze dressing. To examine the histology of the wound, haematoxylin and eosin (HE) staining was performed. Gene expression of vascular endothelial growth factor (VEGF), fibroblast growth factor (FGF), hepatocyte growth factor (HGF) and hypoxia inducible factor-1 alpha (HIF-1a) in granulation tissue was examined by real-time reverse transcription polymerase chain reaction (real-time RT-PCR). VEGF protein was measured by ELISA. RESULTS The hydrocellular foam dressing promoted formation of granulation tissue and significantly promoted wound closure. A scab formed on the surface of granulation tissue in the gauze-treated wounds, which disturbed epithelialisation. In addition, the expression of VEGF and mRNA was higher in the gauze-treated wounds. CONCLUSION These results supports the hypothesis that gauze encourages scab formation, which impairs epithelialisation and increases VEGF expression. In contrast, hydrocellular foam dressing accelerates epithelialisation and new vessel formation in granulation tissue.
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Affiliation(s)
- Y Kunugiza
- Department of Orthopaedic Surgery, Graduate School of Medicine, Osaka University, Japan
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12
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Chen HY, Lin WY, Chen YH, Chen WC, Tsai FJ, Tsai CH. Matrix metalloproteinase-9 polymorphism and risk of pelvic organ prolapse in Taiwanese women. Eur J Obstet Gynecol Reprod Biol 2010; 149:222-4. [DOI: 10.1016/j.ejogrb.2009.12.014] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2009] [Revised: 11/11/2009] [Accepted: 12/11/2009] [Indexed: 10/19/2022]
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Thalacker-Mercer AE, Dell'Italia LJ, Cui X, Cross JM, Bamman MM. Differential genomic responses in old vs. young humans despite similar levels of modest muscle damage after resistance loading. Physiol Genomics 2010; 40:141-9. [PMID: 19903761 PMCID: PMC2825766 DOI: 10.1152/physiolgenomics.00151.2009] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2009] [Accepted: 11/09/2009] [Indexed: 02/07/2023] Open
Abstract
Across numerous model systems, aging skeletal muscle demonstrates an impaired regenerative response when exposed to the same stimulus as young muscle. To better understand the impact of aging in a human model, we compared changes to the skeletal muscle transcriptome induced by unaccustomed high-intensity resistance loading (RL) sufficient to cause moderate muscle damage in young (37 yr) vs. older (73 yr) adults. Serum creatine kinase was elevated 46% 24 h after RL in all subjects with no age differences, indicating similar degrees of myofiber membrane wounding by age. Despite this similarity, from genomic microarrays 318 unique transcripts were differentially expressed after RL in old vs. only 87 in young subjects. Follow-up pathways analysis and functional annotation revealed among old subjects upregulation of transcripts related to stress and cellular compromise, inflammation and immune responses, necrosis, and protein degradation and changes in expression (up- and downregulation) of transcripts related to skeletal and muscular development, cell growth and proliferation, protein synthesis, fibrosis and connective tissue function, myoblast-myotube fusion and cell-cell adhesion, and structural integrity. Overall the transcript-level changes indicative of undue inflammatory and stress responses in these older adults were not mirrored in young subjects. Follow-up immunoblotting revealed higher protein expression among old subjects for NF-kappaB, heat shock protein (HSP)70, and IL-6 signaling [total and phosphorylated signal transducer and activator of transcription (STAT)3 at Tyr705]. Together, these novel findings suggest that young and old adults are equally susceptible to RL-mediated damage, yet the muscles of older adults are much more sensitive to this modest degree of damage-launching a robust transcriptome-level response that may begin to reveal key differences in the regenerative capacity of skeletal muscle with advancing age.
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Affiliation(s)
- Anna E Thalacker-Mercer
- Department of Physiology and Biophysics, University of Alabama at Birmingham, Birmingham, AL 35294-0005, USA
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Otey CA, Dixon R, Stack C, Goicoechea SM. Cytoplasmic Ig-domain proteins: cytoskeletal regulators with a role in human disease. ACTA ACUST UNITED AC 2009; 66:618-34. [PMID: 19466753 DOI: 10.1002/cm.20385] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Immunoglobulin domains are found in a wide variety of functionally diverse transmembrane proteins, and also in a smaller number of cytoplasmic proteins. Members of this latter group are usually associated with the actin cytoskeleton, and most of them bind directly to either actin or myosin, or both. Recently, studies of inherited human disorders have identified disease-causing mutations in five cytoplasmic Ig-domain proteins: myosin-binding protein C, titin, myotilin, palladin, and myopalladin. Together with results obtained from cultured cells and mouse models, these clinical studies have yielded novel insights into the unexpected roles of Ig domain proteins in mechanotransduction and signaling to the nucleus. An emerging theme in this field is that cytoskeleton-associated Ig domain proteins are more than structural elements of the cell, and may have evolved to fill different needs in different cellular compartments. Cell Motil. Cytoskeleton 2009. (c) 2009 Wiley-Liss, Inc.
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Affiliation(s)
- Carol A Otey
- Department of Cell and Molecular Physiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.
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Genome-based expression profiles study for the pathogenesis of pelvic organ prolapse: an array of 33 genes model. Int Urogynecol J 2009; 21:79-84. [DOI: 10.1007/s00192-009-0990-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2009] [Accepted: 08/21/2009] [Indexed: 01/18/2023]
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Does COLIA1 SP1-binding site polymorphism predispose women to pelvic organ prolapse? Int Urogynecol J 2009; 20:1061-5. [PMID: 19655227 DOI: 10.1007/s00192-009-0895-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2008] [Accepted: 04/11/2009] [Indexed: 01/24/2023]
Abstract
INTRODUCTION AND HYPOTHESIS COLIA1 polymorphism is associated with increased risk for stress urinary incontinence. We hypothesize that a similar association exists with pelvic organ prolapse (POP). METHODS Patients with advanced prolapse and healthy controls were evaluated by interview, validated questionnaires, and pelvic examination. DNA was extracted from peripheral blood, and polymerase chain reaction was performed to determine the presence or absence of the polymorphism. Power calculation indicated the need for 36 patients in each arm. RESULTS The prevalence of the polymorphic heterozygous genotype (GT) in the study and control groups was 33.3% and 19.4%, respectively, leading to an odds ratio of 1.75. This difference, however, did not reach statistical significance (p = 0.27). CONCLUSIONS The COLIA1 polymorphism was not significantly associated with increased risk for POP.
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Allen-Brady K, Norton PA, Farnham JM, Teerlink C, Cannon-Albright LA. Significant linkage evidence for a predisposition gene for pelvic floor disorders on chromosome 9q21. Am J Hum Genet 2009; 84:678-82. [PMID: 19393595 DOI: 10.1016/j.ajhg.2009.04.002] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2008] [Revised: 03/16/2009] [Accepted: 04/06/2009] [Indexed: 01/25/2023] Open
Abstract
Predisposition factors for pelvic floor disorders (PFDs), including pelvic organ prolapse (POP), stress urinary incontinence (SUI), urge urinary incontinence (UUI), and hernias, are not well understood. We assessed linkage evidence for PFDs in mostly sister pairs who received treatment for moderate-to-severe POP. We genotyped 70 affected women of European descent from 32 eligible families with at least two affected cases by using the Illumina 1 million single-nucleotide polymorphism (SNP) marker set. Parametric linkage analysis with general dominant and recessive models was performed by the Markov chain Monte Carlo linkage analysis method, MCLINK, and a set of SNPs was formed, from which those in high linkage disequilibrium were eliminated. Significant genome-wide evidence for linkage was identified on chromosome 9q21 with a HLOD score of 3.41 under a recessive model. Seventeen pedigrees (53%) had at least nominal evidence for linkage on a by-pedigree basis at this region. These results provide evidence for a predisposition gene for PFDs on chromosome 9q.
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Affiliation(s)
- Kristina Allen-Brady
- Department of Biomedical Informatics, University of Utah School of Medicine, Salt Lake City, UT 84105, USA.
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Collagen type 3 alpha 1 polymorphism and risk of pelvic organ prolapse. Int J Gynaecol Obstet 2008; 103:55-8. [PMID: 18722615 DOI: 10.1016/j.ijgo.2008.05.031] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2008] [Revised: 05/21/2008] [Accepted: 05/27/2008] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To investigate whether pelvic organ prolapse (POP) is associated with collagen 3 alpha 1 (COL3A1) polymorphisms and other factors. METHODS A case-control association study was conducted with 84 women affected with POP and 147 controls. The genotypes of nucleotides COL3A1 rs1800255 and COL3A1 rs1801184 polymorphisms were ascertained by polymerase chain reaction and restriction fragment length polymorphism analysis. RESULTS The distribution of the COL3A1 rs1800255 genotypes was significantly different among affected women and controls. Older age and incidence of COL3A1 rs1800255 genotype AA were significantly associated with risk of POP. CONCLUSION There may be an association between COL3A1 genotype and risk of POP.
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Real-time PCR detection of protein analytes with conformation-switching aptamers. Anal Biochem 2008; 380:164-73. [PMID: 18541130 DOI: 10.1016/j.ab.2008.05.018] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2007] [Revised: 05/12/2008] [Accepted: 05/13/2008] [Indexed: 11/23/2022]
Abstract
We have developed a novel method that uses conformation-switching aptamers for real-time PCR analysis of protein analytes. The aptamers have been designed so that they assume one secondary structure in the absence of a protein analyte and a different secondary structure in the presence of a protein such as thrombin or platelet-derived growth factor (PDGF). The protein-bound structure in turn assembles a ligation junction for the addition of a real-time PCR primer. Protein concentrations could be specifically detected into the picomolar range, even in the presence of cell lysates. The method has advantages relative to both immunoPCR (because no signal is produced by background binding) and the proximity ligation assay (PLA) (because only one epitope, rather than two epitopes, on a protein surface must be bound).
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Estrogen receptor beta gene haplotype is associated with pelvic organ prolapse. Eur J Obstet Gynecol Reprod Biol 2008; 138:105-9. [DOI: 10.1016/j.ejogrb.2007.12.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2007] [Revised: 10/03/2007] [Accepted: 12/16/2007] [Indexed: 11/23/2022]
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Chen HY, Chung YW, Lin WY, Chen WC, Tsai FJ, Tsai CH. Estrogen receptor alpha polymorphism is associated with pelvic organ prolapse risk. Int Urogynecol J 2008; 19:1159-63. [PMID: 18385916 DOI: 10.1007/s00192-008-0603-1] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2007] [Accepted: 02/29/2008] [Indexed: 11/29/2022]
Abstract
Estrogen and estrogen receptors are known to play important roles in the pathophysiology of pelvic organ prolapse (POP). We investigated whether estrogen receptor alpha (ERalpha) gene polymorphisms were associated with POP risk by conducting a case-control association study in 88 women with POP and 153 women without POP. Genotypes of the ERalpha (ESR1) gene polymorphisms (rs17847075, rs2207647, rs2234693, rs3798577, and rs2228480) were determined by polymerase chain reaction, followed by restriction fragment length polymorphism analysis. There was significant difference between women with and those without POP in the distribution of the ESR1 rs2228480 genotypes evaluated. By using multivariable logistic regression, age and ESR1 rs2228480 genotype GA were significantly associated with POP risk. Although the sample size of women with POP studied is small, the present study shows that ERalpha genotype may be associated with POP risk.
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Affiliation(s)
- Huey-Yi Chen
- Department of Obstetrics and Gynecology, China Medical University Hospital, School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan
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Hundley AF, Yuan L, Visco AG. Gene expression in the rectus abdominus muscle of patients with and without pelvic organ prolapse. Am J Obstet Gynecol 2008; 198:220.e1-7. [PMID: 17981253 DOI: 10.1016/j.ajog.2007.08.047] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2007] [Revised: 07/31/2007] [Accepted: 08/21/2007] [Indexed: 01/04/2023]
Abstract
OBJECTIVE The objective of the study was to compare gene expression in a group of actin and myosin-related proteins in the rectus muscle of 15 patients with pelvic organ prolapse and 13 controls. STUDY DESIGN Six genes previously identified by microarray GeneChip analysis were examined using real-time quantitative reverse transcriptase-polymerase chain reaction analysis, including 2 genes showing differential expression in pubococcygeus muscle. Samples and controls were run in triplicate in multiplexed wells, and levels of gene expression were analyzed using the comparative critical threshold method. RESULTS One gene, MYH3, was 3.2 times overexpressed in patients with prolapse (P = .032), but no significant differences in expression were seen for the other genes examined. An age-matched subset of 9 patients and controls showed that MYH3 gene expression was no longer significantly different (P = .058). CONCLUSION Differential messenger ribonucleic acid levels of actin and myosin-related genes in patients with pelvic organ prolapse and controls may be limited to skeletal muscle from the pelvic floor.
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Affiliation(s)
- Andrew F Hundley
- Division of Urogynecology and Reconstructive Pelvic Surgery, Department of Obstetrics and Gynecology, The Ohio State University Medical Center, Columbus, OH, USA
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Current World Literature. Curr Opin Obstet Gynecol 2006. [DOI: 10.1097/01.gco.0000242963.55738.b6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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