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Pirri C, Torre DE, Stecco C. Fascial plane blocks: from microanatomy to clinical applications. Curr Opin Anaesthesiol 2024; 37:526-532. [PMID: 39108103 PMCID: PMC11356744 DOI: 10.1097/aco.0000000000001416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2024]
Abstract
PURPOSE OF REVIEW In the last 20 years, advancements in the understanding of fasciae have significantly transformed anaesthesia and surgery. Fascial plane blocks (FPBs) have gained popularity due to their validated safety profile and relative ease. They are used in various clinical settings for surgical and nonsurgical indications. Growing evidence suggests a link between the microscopic anatomy of fasciae and their mechanism of action. As a result, knowledge of these aspects is urgently needed to better optimise pain management. The purpose of this review is to summarise the different microscopic aspects of deep/muscular fascia to expand our understanding in the performance of FPBs. RECENT FINDINGS There is ample evidence to support the role of FPBs in pain management. However, the exact mechanism of action remains unclear. Fasciae are composed of various structural elements and display complex anatomical characteristics at the microscopic level. They include various cell types embedded within an extracellular matrix abundant in collagens and hyaluronan. Increasingly, numerous studies demonstrated their innervation that contributes to their sensory functions and their role in proprioception, motor coordination and pain perception. Lastly, the diversity of the cellular and extracellular matrix, with their viscoelastic properties, is essential to understanding the FPBs' mechanism of action. SUMMARY Physicians must be aware of the role of fascial microscopic anatomy and better understand their properties to perform FPBs in a conscious manner and enhance pain management.
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Affiliation(s)
- Carmelo Pirri
- Department of Neurosciences, Institute of Human Anatomy, University of Padova, Padua
| | - Debora Emanuela Torre
- Department of Cardiac Anesthesia and Intensive Care Unit, Cardiac Surgery, Ospedale dell’Angelo, Venice Mestre, Italy
| | - Carla Stecco
- Department of Neurosciences, Institute of Human Anatomy, University of Padova, Padua
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Jiang Y, Liu X, Jiang Z. From Morphology to Therapeutic Strategies: Exploring New Applications of Ultrasound for Diabetic Peripheral Neuropathy Diagnosis and Management. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2024. [PMID: 39239831 DOI: 10.1002/jum.16573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 07/24/2024] [Accepted: 08/26/2024] [Indexed: 09/07/2024]
Abstract
Diabetic peripheral neuropathy (DPN) is a common complication of diabetes that can result in severe lower limb pain and amputation. Early detection and treatment of DPN are vital, but this condition is often missed due to a lack of symptoms and the insensitivity of testing methods. This article reviews various ultrasound imaging modalities in the direct and indirect evaluation of peripheral neuropathy. Moreover, how ultrasound-related therapeutic strategies are playing a role in clinical treatment is discussed. Finally, the application of innovative methodologies in the diagnosis of DPN, including ultrasound attenuation, photoacoustic imaging, and artificial intelligence, is described.
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Affiliation(s)
- Yanfeng Jiang
- Department of Ultrasound, The First Affiliated Hospital of Shaoxing University, Shaoxing, China
- Department of Ultrasound, Shaoxing People's Hospital, Shaoxing, China
| | - Xiatian Liu
- Department of Ultrasound, The First Affiliated Hospital of Shaoxing University, Shaoxing, China
- Department of Ultrasound, Shaoxing People's Hospital, Shaoxing, China
| | - Zhenzhen Jiang
- Department of Ultrasound, The First Affiliated Hospital of Shaoxing University, Shaoxing, China
- Department of Ultrasound, Shaoxing People's Hospital, Shaoxing, China
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3
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Mika A, Oleksy Ł, Fede C, Pirri C, Stecco C. Editorial: Fascia as a multi-purpose structure of connective tissue - dysfunction, diagnostics and treatment. Front Med (Lausanne) 2024; 11:1472116. [PMID: 39206164 PMCID: PMC11349619 DOI: 10.3389/fmed.2024.1472116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2024] [Accepted: 08/02/2024] [Indexed: 09/04/2024] Open
Affiliation(s)
- Anna Mika
- Institute of Clinical Rehabilitation, University of Physical Education in Krakow, Kraków, Poland
| | - Łukasz Oleksy
- Faculty of Health Sciences, Department of Physiotherapy, Jagiellonian University Medical College Krakow, Kraków, Poland
- Department of Orthopedics, Traumatology and Hand Surgery, Faculty of Medicine, Wrocław Medical University, Wrocław, Poland
- Oleksy Medical & Sports Sciences, Rzeszów, Poland
| | - Caterina Fede
- Department of Neurosciences, Institute of Human Anatomy, University of Padua, Padua, Italy
| | - Carmelo Pirri
- Department of Neurosciences, Institute of Human Anatomy, University of Padua, Padua, Italy
| | - Carla Stecco
- Department of Neurosciences, Institute of Human Anatomy, University of Padua, Padua, Italy
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Matovu A, Löfgren J, Wladis A, Nordin P, Sandblom G, Pettersson HJ. Incidence of groin hernia repairs in women and parity: a population-based cohort study among women born in Sweden between 1956 and 1983. Hernia 2024; 28:1231-1238. [PMID: 38520614 PMCID: PMC11296966 DOI: 10.1007/s10029-024-03011-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 03/03/2024] [Indexed: 03/25/2024]
Abstract
INTRODUCTION The aim of this study was to evaluate the association between parity and the incidence rate of groin hernia repair in women. METHOD This study was based on two Swedish national registers, the Medical Birth Register (MBR), and the Swedish Hernia Register (SHR). The cohort constituted of women born between 1956 and 1983. Data on vaginal and cesarean deliveries were retrieved from the MBR. The birth and hernia registers were cross matched to identify hernia repairs carried out after deliveries. RESULTS A total of 1,535,379 women were born between 1956 and 1983. Among these, 1,417,237 (92.3%) were registered for at least one birth. The incidence rate for Inguinal Hernia Repair (IHR) and Femoral Hernia Repair (FHR) was 10.7 per 100,000 person-year and 2.6 per 100,000 person-year, respectively. Compared with women registered for one delivery, the incidence rate ratio for IHR was 1.31 (95% Confidence Interval: 1.23-1.40) among women registered for two deliveries, 1.70 (1.58-1.82) among women registered for ≥ 3 deliveries. Additionally, the incidence rate ratios were higher 1.30 (1.14-1.49) and 1.70 (1.49-1.95) for FHR among women with two and ≥ 3 registered deliveries, respectively. CONCLUSION In the present cohort, higher parity was associated with a higher incidence of inguinal as well as FHRs.
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Affiliation(s)
- A Matovu
- Mubende Regional Referral Hospital, Plot 6, Kakumiro Road, P.O. Box 4, Mubende, Uganda.
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden.
| | - J Löfgren
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - A Wladis
- Linköping University, Linköping, Sweden
| | - P Nordin
- Department of Surgical and Perioperative Sciences/Surgery, Umeå University, Umeå, Sweden
| | - G Sandblom
- Department of Surgery, Södersjukhuset, Stockholm, Sweden
- Department of Clinical Science and Education Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
| | - H J Pettersson
- Department of Clinical Science and Education Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
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Orlandi E, Ceccuzzi L, Belpinati F, Rodolfo M, Malerba G, Trabetti E, Gomez-Lira M, Romanelli MG. Sex-dependent interaction of PTGS2 with miR-146a as risk factor for melanoma and the impact of sex hormones in gene expression in skin cells. Melanoma Res 2024; 34:296-306. [PMID: 38934060 DOI: 10.1097/cmr.0000000000000978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2024]
Abstract
Gender disparity in melanoma is a complex issue where sex hormones could be engaged. Differences in genetic variations are important in understanding the mechanisms of sex disparity in melanoma. Post-transcriptional regulation of prostaglandin-endoperoxide synthase (PTGS2) mRNA occurs through a complex interplay of specific trans-acting RNA-binding proteins and microRNAs. MiR-146a is a key player in melanoma, modulating immune responses and tumor microenvironment (TME). Polymorphisms in PTGS2 gene rs20415GC have been associated with an increased risk of melanoma. Epistasis between polymorphisms rs20415GC was investigated by genotyping 453 melanoma patients and 382 control individuals. The effects of testosterone and 17β-estradiol were analyzed in keratinocytes and two melanoma cell lines. The rs2910164GG showed a higher risk in the presence of the genotype rs20417CC in the male population. Testosterone and 17β-estradiol act differently on PTGS2 and miR-146a expression, depending on the cell type. Testosterone augments PTGS2 gene expression in keratinocytes and miR-146a in melanoma cells. While 17β-estradiol only increases miR-146a expression in HaCaT cells. The present study indicates a sex-specific relation between miR-146a and PTGS2 polymorphisms with melanoma cancer risk. Testosterone and 17β-estradiol act differently on the expression of PTGS2 and miR-146a depending on the skin cell type.
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Affiliation(s)
- Elisa Orlandi
- Section of Biology and Genetics, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Strada Le Grazie, Verona
| | - Laura Ceccuzzi
- Section of Biology and Genetics, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Strada Le Grazie, Verona
| | - Francesca Belpinati
- Section of Biology and Genetics, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Strada Le Grazie, Verona
| | - Monica Rodolfo
- Unit of Immunotherapy of Human Tumors, Department of Research, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Giovanni Malerba
- Section of Biology and Genetics, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Strada Le Grazie, Verona
| | - Elisabetta Trabetti
- Section of Biology and Genetics, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Strada Le Grazie, Verona
| | - Macarena Gomez-Lira
- Section of Biology and Genetics, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Strada Le Grazie, Verona
| | - Maria Grazia Romanelli
- Section of Biology and Genetics, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Strada Le Grazie, Verona
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Chanchi ML, DeJong Lempke AF, Kocher M, Shore B, Meehan W, Willwerth S, Dawkins C, Hunt D, d'Hemecourt P, Stracciolini A, Whitney K. Running Biomechanics and Clinical Features Among Adolescent Athletes With Lower Leg Chronic Exertional Compartment Syndrome. Clin J Sport Med 2024; 34:348-356. [PMID: 38626073 DOI: 10.1097/jsm.0000000000001221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Accepted: 02/07/2024] [Indexed: 04/18/2024]
Abstract
OBJECTIVE To compare clinical measures between patients with chronic exertional compartment syndrome (CECS) and healthy controls and evaluate running biomechanics, physical measurements, and exertional intracompartmental (ICP) changes in adolescent athletes with lower leg CECS. DESIGN Cross-sectional case-control study. SETTING Large tertiary care hospital and affiliated injury prevention center. PARTICIPANTS Forty-nine adolescents with CECS (39 F, 10 M; age: 16.9 ± 0.8 years; body mass index (BMI): 23.1 ± 2.9 kg/m 2 ; symptom duration: 8 ± 12 months) were compared with 49 healthy controls (39 F, 10 M; age: 6.9 ± 0.8 years; BMI: 20.4 ± 3.7 kg/m 2 ). INTERVENTIONS All participants underwent gait analyses on a force plate treadmill and clinical lower extremity strength and range of motion testing. Patients with chronic exertional compartment syndrome underwent Stryker monitor ICP testing. MAIN OUTCOME MEASURES Symptoms, menstrual history, and ICP pressures of the patients with CECS using descriptive statistics. Mann-Whitney U and χ 2 analyses were used to compare CECS with healthy patients for demographics, clinical measures, and gait biomechanics continuous and categorical outcomes, respectively. For patients with CECS, multiple linear regressions analyses were used to assess associations between gait biomechanics, lower extremity strength and range of motion, and with ICP measures. RESULTS The CECS group demonstrated higher mass-normalized peak ground reaction force measures (xBW) compared with controls (0.21 ± 0.05 xBW ( P < 0.001) and were more likely to have impact peak at initial contact ( P = 0.04). Menstrual dysfunction was independently associated with higher postexertion ICP (ß = 14.6; P = 0.02). CONCLUSIONS The CECS group demonstrated increased total force magnitude and vertical impact transient peaks. In women with CECS, menstrual dysfunction was independently associated with increased postexertion ICP. These biomechanical and physiological attributes may play a role in the development of CECS.
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Affiliation(s)
- Mayela Leal Chanchi
- Boston Children's Hospital Orthopedics and Sports Medicine, Boston, Massachusetts
- The Micheli Center for Sports Injury Prevention, Waltham, Massachusetts
- Harvard Medical School, Boston, Massachusetts; and
| | - Alexandra F DeJong Lempke
- Boston Children's Hospital Orthopedics and Sports Medicine, Boston, Massachusetts
- The Micheli Center for Sports Injury Prevention, Waltham, Massachusetts
- School of Kinesiology, University of Michigan, Ann Arbor, Michigan
| | - Mininder Kocher
- Boston Children's Hospital Orthopedics and Sports Medicine, Boston, Massachusetts
- The Micheli Center for Sports Injury Prevention, Waltham, Massachusetts
- Harvard Medical School, Boston, Massachusetts; and
| | - Ben Shore
- Boston Children's Hospital Orthopedics and Sports Medicine, Boston, Massachusetts
- The Micheli Center for Sports Injury Prevention, Waltham, Massachusetts
- Harvard Medical School, Boston, Massachusetts; and
| | - William Meehan
- Boston Children's Hospital Orthopedics and Sports Medicine, Boston, Massachusetts
- The Micheli Center for Sports Injury Prevention, Waltham, Massachusetts
- Harvard Medical School, Boston, Massachusetts; and
| | - Sarah Willwerth
- Boston Children's Hospital Orthopedics and Sports Medicine, Boston, Massachusetts
- The Micheli Center for Sports Injury Prevention, Waltham, Massachusetts
| | - Corey Dawkins
- Boston Children's Hospital Orthopedics and Sports Medicine, Boston, Massachusetts
- The Micheli Center for Sports Injury Prevention, Waltham, Massachusetts
| | - Danielle Hunt
- Boston Children's Hospital Orthopedics and Sports Medicine, Boston, Massachusetts
- The Micheli Center for Sports Injury Prevention, Waltham, Massachusetts
| | - Pierre d'Hemecourt
- Boston Children's Hospital Orthopedics and Sports Medicine, Boston, Massachusetts
- The Micheli Center for Sports Injury Prevention, Waltham, Massachusetts
- Harvard Medical School, Boston, Massachusetts; and
| | - Andrea Stracciolini
- Boston Children's Hospital Orthopedics and Sports Medicine, Boston, Massachusetts
- The Micheli Center for Sports Injury Prevention, Waltham, Massachusetts
- Harvard Medical School, Boston, Massachusetts; and
| | - Kristin Whitney
- Boston Children's Hospital Orthopedics and Sports Medicine, Boston, Massachusetts
- The Micheli Center for Sports Injury Prevention, Waltham, Massachusetts
- Harvard Medical School, Boston, Massachusetts; and
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7
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Saito R, Shagawa M, Sugimoto Y, Hirai T, Kato K, Sekine C, Yokota H, Hirabayashi R, Ishigaki T, Akuzawa H, Togashi R, Yamada Y, Osanami H, Edama M. Changes in the mechanical properties of the thigh and lower leg muscle-tendon units during the early follicular and early luteal phases. Front Sports Act Living 2024; 6:1323598. [PMID: 38596640 PMCID: PMC11002163 DOI: 10.3389/fspor.2024.1323598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 03/12/2024] [Indexed: 04/11/2024] Open
Abstract
Background This study aimed to determine changes in the muscle and tendon stiffness of the thigh and lower leg muscle-tendon units during the early follicular and early luteal phases, and check for possible relations between muscle and tendon stiffness in each phase. Methods The sample consisted of 15 female university students with regular menstrual cycles. The basal body temperature method, ovulation kit, and salivary estradiol concentration measurement were used to estimate the early follicular and early luteal phases. A portable digital palpation device measured muscle-tendon stiffness in the early follicular and early luteal phases. The measurement sites were the rectus femoris (RF), vastus medialis (VM), patellar tendon (PT), medial head of gastrocnemius muscle, soleus muscle, and Achilles tendon. Results No statistically significant differences in the thigh and lower leg muscle-tendon unit stiffness were seen between the early follicular and early luteal phases. Significant positive correlations were found between the stiffness of the RF and PT (r = 0.608, p = 0.016) and between the VM and PT (r = 0.737, p = 0.002) during the early luteal phase. Conclusion The present results suggest that the stiffness of leg muscle-tendon units of the anterior thigh and posterior lower leg do not change between the early follicular and early luteal phases and that tendons may be stiffer in those women who have stiffer anterior thigh muscles during the early luteal phase.
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Fusco P, Pascarella G, Stecco C, Blanco R, Forero M, Pawa A, Tulgar S, Strumia A, Remore LM, DE Cassai A, Colantonio LB, Del Buono R, Fattorini F, Sepolvere G, Tedesco M, Petroni GM, Ciaschi W, Crassiti M, Costa F. Factors to consider for fascial plane blocks' success in acute and chronic pain management. Minerva Anestesiol 2024; 90:87-97. [PMID: 38197590 DOI: 10.23736/s0375-9393.23.17866-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
The outcome of fascial plane blocks (FPBs) has a certain variability that may depend on many factors, which can be divided into three main categories: operator-related, patient-related and drug-related. Operator-related factors include personal skills, choice of needle and injection modalities. Patient variables include anthropometric features, the type of targeted fascia, anatomical variants, patient positioning, muscle tone and breathing. Ultimately, efficacy, onset, and duration of fascial blocks may be affected by characteristics of the injected solution, including the type of local anesthetic, volume, concentration, pH, temperature and the use of adjuvants. In this article, we investigated all the factors that may influence the outcome of FPBs from a generic perspective, without focusing on any specific technique. Also, we provided suggestions to optimize techniques for everyday practitioners and insights to researchers for future studies.
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Affiliation(s)
- Pierfrancesco Fusco
- Unit of Anesthesia and Intensive Care, SS Filippo e Nicola Hospital, Avezzano, L'Aquila, Italy
| | - Giuseppe Pascarella
- Unit of Anesthesia and Intensive Care, Campus Bio-Medico University Hospital, Rome, Italy
| | - Carla Stecco
- Department of Neurosciences, Institute of Human Anatomy, University of Padua, Padua, Italy
| | - Rafael Blanco
- Unit of Anesthesia and Intensive Care, King's College Hospital Dubai, Abu Dhabi, United Arab Emirates
| | - Mauricio Forero
- Faculty of Anesthesia and Pain Medicine, McMaster University, Hamilton, ON, Canada
| | - Amit Pawa
- Department of Anesthesia and Perioperative Medicine, Guy's and St. Thomas' NHS Foundation Trust, London, UK
| | - Serkan Tulgar
- Department of Anesthesiology and Reanimation, Faculty of Medicine, Samsun Training and Research Hospital, Samsun University, Samsun, Türkiye
| | - Alessandro Strumia
- Unit of Anesthesia and Intensive Care, Campus Bio-Medico University Hospital, Rome, Italy
| | - Luigi M Remore
- Unit of Anesthesia and Intensive Care, Campus Bio-Medico University Hospital, Rome, Italy
| | - Alessandro DE Cassai
- Unit of Anesthesia and Intensive Care, University Hospital of Padua, Padua, Italy
| | | | - Romualdo Del Buono
- Unit of Anesthesia, Resuscitation, Intensive Care and Pain Management, ASST Gaetano Pini, Milan, Italy
| | | | - Giuseppe Sepolvere
- Intensive Care Unit, Department of Anesthesia and Cardiac Surgery, San Michele Hospital, Maddaloni, Caserta, Italy
| | - Mario Tedesco
- Department of Anesthesia, Intensive Care and Pain Therapy, Mater Day Hospital, Bari, Italy
| | - Gian M Petroni
- Unit of Anesthesia and Intensive Care, S. Maria Hospital, Terni, Italy -
| | - Walter Ciaschi
- Unit of Anesthesia and Intensive Care, F. Spaziani Hospital, Frosinone, Italy
| | - Massimiliano Crassiti
- Unit of Anesthesia and Intensive Care, Campus Bio-Medico University Hospital, Rome, Italy
| | - Fabio Costa
- Unit of Anesthesia and Intensive Care, Campus Bio-Medico University Hospital, Rome, Italy
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Pirri C, Caroccia B, Angelini A, Piazza M, Petrelli L, Caputo I, Montemurro C, Ruggieri P, De Caro R, Stecco C. A New Player in the Mechanobiology of Deep Fascia: Yes-Associated Protein (YAP). Int J Mol Sci 2023; 24:15389. [PMID: 37895068 PMCID: PMC10607668 DOI: 10.3390/ijms242015389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 10/14/2023] [Accepted: 10/17/2023] [Indexed: 10/29/2023] Open
Abstract
Recent studies have demonstrated that fascial fibroblasts are susceptible to mechanical stimuli, leading to the remodeling of the extracellular matrix (ECM). Moreover, the extensive literature on Yes-associated protein (YAP) has shown its role in cell mechanics, linking cell properties, such as shape, adhesion, and size, to the expression of specific genes. The aim of this study was to investigate the presence of YAP in deep fascia and its activation after a mechanical stimulus was induced via a focal extracorporeal shockwave (fESW) treatment. Thoracolumbar fascia (TLF) samples were collected from eight patients (age: 30-70 years; four males and four females) who had undergone spine elective surgical procedures at the Orthopedic Clinic of University of Padova. YAP was measured in both tissue and TLF-derived fibroblasts through immunoblotting. COL1A1 and HABP2 gene expression were also evaluated in fibroblasts 2, 24, and 48 h after the fESW treatment. YAP was expressed in all the examined tissues. The ratio between the active/inactive forms (YAP/p-YAP) of the protein significantly increased in fascial fibroblasts after mechanical stimulation compared to untreated cells (p = 0.0022). Furthermore, COL1A1 and HABP2 gene expression levels were increased upon treatment. These findings demonstrate that YAP is expressed in the deep fascia of the thoracolumbar region, suggesting its involvement in fascial mechanotransduction processes, remodeling, regeneration, and fibrogenesis. This study indicates, for the first time, that YAP is a "new player" in the mechanobiology of deep fascia.
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Affiliation(s)
- Carmelo Pirri
- Department of Neurosciences, Institute of Human Anatomy, University of Padova, 35121 Padova, Italy; (R.D.C.); (C.S.)
| | - Brasilina Caroccia
- Department of Medicine-DIMED, University of Padova, 35128 Padova, Italy; (B.C.); (M.P.); (L.P.); (I.C.)
| | - Andrea Angelini
- Department of Orthopedics and Orthopedic Oncology, University of Padova, 35128 Padova, Italy; (A.A.); (P.R.)
| | - Maria Piazza
- Department of Medicine-DIMED, University of Padova, 35128 Padova, Italy; (B.C.); (M.P.); (L.P.); (I.C.)
| | - Lucia Petrelli
- Department of Medicine-DIMED, University of Padova, 35128 Padova, Italy; (B.C.); (M.P.); (L.P.); (I.C.)
| | - Ilaria Caputo
- Department of Medicine-DIMED, University of Padova, 35128 Padova, Italy; (B.C.); (M.P.); (L.P.); (I.C.)
| | | | - Pietro Ruggieri
- Department of Orthopedics and Orthopedic Oncology, University of Padova, 35128 Padova, Italy; (A.A.); (P.R.)
| | - Raffaele De Caro
- Department of Neurosciences, Institute of Human Anatomy, University of Padova, 35121 Padova, Italy; (R.D.C.); (C.S.)
| | - Carla Stecco
- Department of Neurosciences, Institute of Human Anatomy, University of Padova, 35121 Padova, Italy; (R.D.C.); (C.S.)
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10
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Llewellyn J, Fede C, Loneker AE, Friday CS, Hast MW, Theise ND, Furth EE, Guido M, Stecco C, Wells RG. Glisson's capsule matrix structure and function is altered in patients with cirrhosis irrespective of aetiology. JHEP Rep 2023; 5:100760. [PMID: 37534230 PMCID: PMC10393548 DOI: 10.1016/j.jhepr.2023.100760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 03/14/2023] [Accepted: 03/31/2023] [Indexed: 08/04/2023] Open
Abstract
Background & Aims Glisson's capsule is the interstitial connective tissue that surrounds the liver. As part of its normal physiology, it withstands significant daily changes in liver size. The pathophysiology of the capsule in disease is not well understood. The aim of this study was to characterise the changes in capsule matrix, cellular composition, and mechanical properties that occur in liver disease and to determine whether these correlate with disease severity or aetiology. Methods Samples from ten control patients, and six with steatosis, seven with moderate fibrosis, and 37 with cirrhosis were collected from autopsies, intraoperative biopsies, and liver explants. Matrix proteins and cell markers were assessed by staining and second harmonic generation imaging. Mechanical tensile testing was performed on a test frame. Results Capsule thickness was significantly increased in cirrhotic samples compared with normal controls irrespective of disease aetiology (70.12 ± 14.16 μm and 231.58 ± 21.82 μm, respectively), whereas steatosis and moderate fibrosis had no effect on thickness (90.91 ± 11.40 μm). Changes in cirrhosis included an increase in cell number (fibroblasts, vascular cells, infiltrating immune cells, and biliary epithelial cells). Key matrix components (collagens 1 and 3, hyaluronan, versican, and elastin) were all deposited in the lower capsule, although only the relative amounts per area of hyaluronan and versican were increased. Organisational features, including crimping and alignment of collagen fibres, were also altered in cirrhosis. Unexpectedly, capsules from cirrhotic livers had decreased resistance to loading compared with controls. Conclusions The liver capsule, similar to the parenchyma, is an active site of disease, demonstrating changes in matrix and cell composition as well as mechanical properties. Impact and implications We assessed the changes in composition and response to stretching of the liver outer sheath, the capsule, in human liver disease. We found an increase in key structural components and numbers of cells as well as a change in matrix organisation of the capsule during the later stages of disease. This allows the diseased capsule to stretch more under any given force, suggesting that it is less stiff than healthy tissue.
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Affiliation(s)
- Jessica Llewellyn
- Department of Gastroenterology and Hepatology, School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Center for Engineering MechanoBiology, University of Pennsylvania, Philadelphia, PA, USA
| | - Caterina Fede
- Department of Neuroscience, University of Padova, Padova, Italy
| | - Abigail E. Loneker
- Center for Engineering MechanoBiology, University of Pennsylvania, Philadelphia, PA, USA
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Chet S. Friday
- Department of Orthopaedic Surgery, School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Michael W. Hast
- Department of Orthopaedic Surgery, School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Neil D. Theise
- Department of Pathology, New York University, School of Medicine, New York, NY, USA
| | - Emma E. Furth
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Maria Guido
- Department of Pathology, University of Padova, Italy
| | - Carla Stecco
- Department of Neuroscience, University of Padova, Padova, Italy
| | - Rebecca G. Wells
- Department of Gastroenterology and Hepatology, School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
- Center for Engineering MechanoBiology, University of Pennsylvania, Philadelphia, PA, USA
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA, USA
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11
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Pirri C, Biz C, Pirri N, Macchi V, Porzionato A, De Caro R, Ruggieri P, Stecco C. Crural and Plantar Fasciae Changes in Chronic Charcot Diabetic Foot: A Cross-Sectional Ultrasound Imaging Study-An Evidence of Fascial Continuity. J Clin Med 2023; 12:4664. [PMID: 37510779 PMCID: PMC10380358 DOI: 10.3390/jcm12144664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 07/11/2023] [Accepted: 07/12/2023] [Indexed: 07/30/2023] Open
Abstract
Crural fascia (CF) and plantar fascia (PF) are biomechanically crucial in the gait and in the proprioception, particularly in the propulsion phase of the foot during the gait cycle and in the dissipation of forces during weight-bearing activities. Recent studies have revealed an association between increases in PF thickness and diabetes. The purpose of this study was to measure and compare by ultrasound (US) imaging the thickness of the CF and PF at different regions/levels in chronic Charcot diabetic foot patients (group 1) and in healthy volunteers (group 2). A cross-sectional study was performed using US imaging to measure the CF with Pirri et al.'s protocol and PF with a new protocol in a sample of 31 subjects (15 patients and 16 healthy participants). The findings for CF and PF revealed statistically significant differences in the poster region of CF (Post 1: group 1 vs. group 2: p = 0.03; Post 2: group 1 vs. group 2: p = 0.03) and in PF at two different levels (PF level 1: group 1 vs. group 2: p < 0.0001; PF level 2: group 1 vs. group 2: p < 0.0001). These findings suggest that chronic Charcot diabetic foot patients have CF and PF thicker compared to healthy volunteers. The US examination suggests that fascial thicknesses behavior in these patients points out altered fascial remodeling due to diabetes pathology and biomechanical changes.
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Affiliation(s)
- Carmelo Pirri
- Department of Neurosciences, Institute of Human Anatomy, University of Padova, 35121 Padua, Italy
| | - Carlo Biz
- Department of Orthopedics and Orthopedic Oncology, University of Padova, 35128 Padova, Italy
| | - Nina Pirri
- Department of Medicine-DIMED, School of Radiology, Radiology Institute, University of Padova, 35121 Padova, Italy
| | - Veronica Macchi
- Department of Neurosciences, Institute of Human Anatomy, University of Padova, 35121 Padua, Italy
| | - Andrea Porzionato
- Department of Neurosciences, Institute of Human Anatomy, University of Padova, 35121 Padua, Italy
| | - Raffaele De Caro
- Department of Neurosciences, Institute of Human Anatomy, University of Padova, 35121 Padua, Italy
| | - Pietro Ruggieri
- Department of Orthopedics and Orthopedic Oncology, University of Padova, 35128 Padova, Italy
| | - Carla Stecco
- Department of Neurosciences, Institute of Human Anatomy, University of Padova, 35121 Padua, Italy
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12
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Albertin G, Astolfi L, Fede C, Simoni E, Contran M, Petrelli L, Tiengo C, Guidolin D, De Caro R, Stecco C. Detection of Lymphatic Vessels in the Superficial Fascia of the Abdomen. Life (Basel) 2023; 13:life13030836. [PMID: 36983991 PMCID: PMC10058564 DOI: 10.3390/life13030836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 03/03/2023] [Accepted: 03/17/2023] [Indexed: 03/30/2023] Open
Abstract
Recently, the superficial fascia has been recognized as a specific anatomical structure between the two adipose layers-the superficial adipose tissue (SAT) and the deep adipose tissue (DAT). The evaluation of specific characteristics of cells, fibers, blood circulation, and innervation has shown that the superficial fascia has a clear and distinct anatomical identity, but knowledge about lymphatic vessels in relation to the superficial fascia has not been described. The aim of this study was to evaluate the presence of lymphatic vessels in the hypodermis, with a specific focus on the superficial fascia and in relation to the layered subdivision of the subcutaneous tissue into SAT and DAT. Tissue specimens were harvested from three adult volunteer patients during abdominoplasty and stained with D2-40 antibody for the lymphatic endothelium. In the papillary dermis, a huge presence of lymphatic vessels was highlighted, parallel to the skin surface and embedded in the loose connective tissue. In the superficial adipose tissue, thin lymphatic vessels (mean diameter of 11.6 ± 7.71 µm) were found, close to the fibrous septa connecting the dermis to the deeper layers. The deep adipose tissue showed a comparable overall content of lymphatic vessels with respect to the superficial layer; they followed the blood vessel and had a larger diameter. In the superficial fascia, the lymphatic vessels showed higher density and a larger diameter, in both the longitudinal and transverse directions along the fibers, as well as vessels that intertwined with one another, forming a rich network of vessels. This study demonstrated a different distribution of the lymphatic vessels in the various subcutaneous layers, especially in the superficial fascia, and the demonstration of the variable gauge of the vessels leads us to believe that they play different functional roles in the collection and transport of interstitial fluid-important factors in various surgical and rehabilitation fields.
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Affiliation(s)
- Giovanna Albertin
- Department of Neuroscience (DNS), Section of Human Anatomy, University of Padova, 35122 Padova, Italy
| | - Laura Astolfi
- Bioacoustics Research Laboratory, Department of Neuroscience (DNS), University of Padova, 35129 Padova, Italy
- Interdepartmental Research Center of International Auditory Processing Project in Venice (I-APPROVE), Department of Neurosciences, University of Padova, Santi Giovanni e Paolo Hospital, ULSS3 Serenissima, 30122 Venezia, Italy
| | - Caterina Fede
- Department of Neuroscience (DNS), Section of Human Anatomy, University of Padova, 35122 Padova, Italy
| | - Edi Simoni
- Bioacoustics Research Laboratory, Department of Neuroscience (DNS), University of Padova, 35129 Padova, Italy
- Interdepartmental Research Center of International Auditory Processing Project in Venice (I-APPROVE), Department of Neurosciences, University of Padova, Santi Giovanni e Paolo Hospital, ULSS3 Serenissima, 30122 Venezia, Italy
| | - Martina Contran
- Department of Neuroscience (DNS), Section of Human Anatomy, University of Padova, 35122 Padova, Italy
| | - Lucia Petrelli
- Department of Neuroscience (DNS), Section of Human Anatomy, University of Padova, 35122 Padova, Italy
| | - Cesare Tiengo
- Clinic of Plastic Surgery, Padova University Hospital, 35128 Padova, Italy
| | - Diego Guidolin
- Department of Neuroscience (DNS), Section of Human Anatomy, University of Padova, 35122 Padova, Italy
| | - Raffaele De Caro
- Department of Neuroscience (DNS), Section of Human Anatomy, University of Padova, 35122 Padova, Italy
| | - Carla Stecco
- Department of Neuroscience (DNS), Section of Human Anatomy, University of Padova, 35122 Padova, Italy
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13
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Fede C, Fan C, Pirri C, Petrelli L, Biz C, Porzionato A, Macchi V, De Caro R, Stecco C. The Effects of Aging on the Intramuscular Connective Tissue. Int J Mol Sci 2022; 23:ijms231911061. [PMID: 36232366 PMCID: PMC9569538 DOI: 10.3390/ijms231911061] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/01/2022] [Accepted: 09/18/2022] [Indexed: 11/24/2022] Open
Abstract
The intramuscular connective tissue plays a critical role in maintaining the structural integrity of the muscle and in providing mechanical support. The current study investigates age-related changes that may contribute to passive stiffness and functional impairment of skeletal muscles. Variations in the extracellular matrix in human quadriceps femoris muscles in 10 young men, 12 elderly males and 16 elderly females, and in the hindlimb muscles of 6 week old, 8 month old and 2 year old C57BL/6J male mice, were evaluated. Picrosirius red, Alcian blue and Weigert Van Gieson stainings were performed to evaluate collagen, glycosamynoglycans and elastic fibers. Immunohistochemistry analyses were carried out to assess collagen I, collagen III and hyaluronan. The percentage area of collagen was significantly higher with aging (p < 0.01 in humans, p < 0.001 in mice), mainly due to an increase in collagen I, with no differences in collagen III (p > 0.05). The percentage area of elastic fibers in the perimysium was significantly lower (p < 0.01) in elderly men, together with a significant decrease in hyaluronan content both in humans and in mice. No significant differences were detected according to gender. The accumulation of collagen I and the lower levels of hyaluronan and elastic fibers with aging could cause a stiffening of the muscles and a reduction of their adaptability.
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Affiliation(s)
- Caterina Fede
- Department of Neurosciences, Institute of Human Anatomy, University of Padua, 35121 Padua, Italy
- Correspondence:
| | - Chenglei Fan
- Department of Neurosciences, Institute of Human Anatomy, University of Padua, 35121 Padua, Italy
| | - Carmelo Pirri
- Department of Neurosciences, Institute of Human Anatomy, University of Padua, 35121 Padua, Italy
| | - Lucia Petrelli
- Department of Neurosciences, Institute of Human Anatomy, University of Padua, 35121 Padua, Italy
| | - Carlo Biz
- Department of Surgery, Oncology and Gastroenterology, Orthopedic Clinic, University of Padua, 35128 Padua, Italy
| | - Andrea Porzionato
- Department of Neurosciences, Institute of Human Anatomy, University of Padua, 35121 Padua, Italy
| | - Veronica Macchi
- Department of Neurosciences, Institute of Human Anatomy, University of Padua, 35121 Padua, Italy
| | - Raffaele De Caro
- Department of Neurosciences, Institute of Human Anatomy, University of Padua, 35121 Padua, Italy
| | - Carla Stecco
- Department of Neurosciences, Institute of Human Anatomy, University of Padua, 35121 Padua, Italy
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14
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Bouvier J, Martin C, Fouré A. Effect of hip and knee joint angles on resting hamstring muscles rigidity in men and women. Eur J Appl Physiol 2022; 122:2375-2383. [PMID: 35945385 DOI: 10.1007/s00421-022-05023-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 08/04/2022] [Indexed: 11/26/2022]
Abstract
PURPOSE Hamstring muscle strains are one of the most common injuries in sports practice, for both men and women. However, sex disparities in the rate of muscle injuries have been observed. As these muscular injuries usually occur at long muscle length, this study aimed to determine the effect of sex on hamstring muscles' resting rigidity under different stretching conditions. METHODS The shear wave speed (SWS) of resting hamstring muscles was measured in 12 men and 12 women in different hip and knee positions (hip extended with knee flexed, hip flexed with knee extended, both joints extended and both joints flexed). RESULTS Combining all the positions, the SWS of the semitendinosus was higher in men than in women (2.96 vs. 2.71 m.s-1). Regardless of sex, a significant rise in SWS was systematically observed when the semimembranosus was stretched (1.86, 2.37, 2.76 and 4.39 m.s-1) but it was neither the case for the semitendinosus (p = 0.82) nor for the biceps femoris (p = 0.50). Finally, differences in SWS among the hamstring muscles were only observed at the longest muscle length, with greater SWS values for the semimembranosus and semitendinosus in comparison with the biceps femoris (4.39 and 4.12 vs. 3.38 m.s-1 respectively). CONCLUSION In conclusion, a sex difference was only observed in the resting semitendinosus rigidity. Independently of sex, the increase in resting hamstring muscles SWS with stretch was muscle specific.
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Affiliation(s)
- Jérémie Bouvier
- Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM), Univ Lyon, Université Claude Bernard Lyon 1, 27-29 Boulevard du 11 novembre 1918, 69622, Villeurbanne, France
| | - Cyril Martin
- Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM), Univ Lyon, Université Claude Bernard Lyon 1, 27-29 Boulevard du 11 novembre 1918, 69622, Villeurbanne, France
| | - Alexandre Fouré
- Laboratoire Interuniversitaire de Biologie de la Motricité (LIBM), Univ Lyon, Université Claude Bernard Lyon 1, 27-29 Boulevard du 11 novembre 1918, 69622, Villeurbanne, France.
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15
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Pirri C, Fede C, Petrelli L, De Rose E, Biz C, Guidolin D, De Caro R, Stecco C. Immediate Effects of Extracorporeal Shock Wave Therapy in Fascial Fibroblasts: An In Vitro Study. Biomedicines 2022; 10:biomedicines10071732. [PMID: 35885037 PMCID: PMC9312511 DOI: 10.3390/biomedicines10071732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/06/2022] [Accepted: 07/16/2022] [Indexed: 12/04/2022] Open
Abstract
Extracorporeal shock waves (ESWs) are used in the treatment of soft tissue injuries, but their role in the treatment of myofascial pain has not yet been demonstrated. The aim of this study was to investigate changes in cell biology of fibroblasts derived from deep/muscular fascia following treatment with ESWs. Primary fascial fibroblasts were collected from small samples of human fascia lata of the thigh of three volunteer patients (two men, one woman) during orthopedic surgery, and put in culture. These cells were exposed to 100 impulses of 0.05 mJ/mm2 with a frequency of 2.5 Hz, using 3D-printed support. This study demonstrated for the first time that ESWs can lead to in vitro production of hyaluronan-rich vesicles immediately after the treatment. At 1, 4, and 24 h after treatment, Alcian blue and Toluidine blue staining; immunocytochemistry to detect hyaluronic acid binding protein (HABP), collagen I, and collagen III; and transmission electron microscopy demonstrated that these vesicles are rich in hyaluronan and collagen I and III. The diameter of these vesicles was assessed, highlighting a small size at 1 h after ESW treatment, whereas at 4 and 24 h, they had an increase in the size. Particularly evident was the release of hyaluronan-rich vesicles, collagen-I, and collagen-III starting at 1 h, with an increase at 4 h and maintenance by 24 h. These in vitro data indicate that fascial cells respond to ESW treatment by regulating and remodeling the formation of extracellular matrix.
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Affiliation(s)
- Carmelo Pirri
- Institute of Humana Anatomy, Department of Neurosciences, University of Padova, 35121 Padua, Italy; (C.F.); (L.P.); (E.D.R.); (D.G.); (R.D.C.)
- Correspondence: (C.P.); (C.S.)
| | - Caterina Fede
- Institute of Humana Anatomy, Department of Neurosciences, University of Padova, 35121 Padua, Italy; (C.F.); (L.P.); (E.D.R.); (D.G.); (R.D.C.)
| | - Lucia Petrelli
- Institute of Humana Anatomy, Department of Neurosciences, University of Padova, 35121 Padua, Italy; (C.F.); (L.P.); (E.D.R.); (D.G.); (R.D.C.)
| | - Enrico De Rose
- Institute of Humana Anatomy, Department of Neurosciences, University of Padova, 35121 Padua, Italy; (C.F.); (L.P.); (E.D.R.); (D.G.); (R.D.C.)
| | - Carlo Biz
- Orthopedics and Orthopedic Oncology, Department of Surgery, Oncology and Gastroenterology (DiSCOG), University of Padua, 35128 Padua, Italy;
| | - Diego Guidolin
- Institute of Humana Anatomy, Department of Neurosciences, University of Padova, 35121 Padua, Italy; (C.F.); (L.P.); (E.D.R.); (D.G.); (R.D.C.)
| | - Raffaele De Caro
- Institute of Humana Anatomy, Department of Neurosciences, University of Padova, 35121 Padua, Italy; (C.F.); (L.P.); (E.D.R.); (D.G.); (R.D.C.)
| | - Carla Stecco
- Institute of Humana Anatomy, Department of Neurosciences, University of Padova, 35121 Padua, Italy; (C.F.); (L.P.); (E.D.R.); (D.G.); (R.D.C.)
- Correspondence: (C.P.); (C.S.)
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16
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Kablan N, Can M, Ayvacı H, Gerçek N, Eroğlu ZA, Özgit B, Tatar Y. Biomechanical and Viscoelastic Properties of the Achilles Tendon and Plantar Fascia in Pregnant Women with Pelvic Girdle Pain: A Case–Control Study. Women Health 2022; 62:476-487. [DOI: 10.1080/03630242.2022.2085843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Nilüfer Kablan
- Faculty of Health Sciences, Department of Physiotherapy and Rehabilitation, İstanbul Medeniyet University, Istanbul, Turkey
| | - Merve Can
- Plato Vocational School, Department of Therapy and Rehabilitation, Istanbul Topkapı University, Istanbul, Turkey
| | - Habibe Ayvacı
- Ministry of Health, Zeynep Kamil Women and Children Diseases Training and Research Hospital, Istanbul, Turkey
| | - Nejla Gerçek
- Faculty of Sports Sciences, Marmara University, Istanbul, Turkey
| | - Zeynep Ayyıldız Eroğlu
- Ministry of Health, Istanbul Physical Medicine and Rehabilitation Training and Research Hospital, Istanbul, Turkey
| | - Berk Özgit
- Ministry of Health, Zeynep Kamil Women and Children Diseases Training and Research Hospital, Istanbul, Turkey
| | - Yaşar Tatar
- Faculty of Sports Sciences, Marmara University, Istanbul, Turkey
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17
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Waugh CM, Scott A. Case Studies in Physiology: Adaptation of Loading-Bearing Tendons during Pregnancy. J Appl Physiol (1985) 2022; 132:1280-1289. [PMID: 35271408 DOI: 10.1152/japplphysiol.00555.2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Pregnancy is characterized by hormone changes that could alter musculoskeletal (MSK) properties and temporarily increase soft tissue injury risk. Whilst the prevalence of MSK injuries in pregnancy has not yet proven itself to be a widespread problem, indirect evidence indicates an uptake in the prevalence of strength training and vigorous-intensity activity during pregnancy, which may result in increased MSK injury incidence. Combining this evidence with the association between sex hormones and MSK injury risk, we recognize the potential importance of this research area and believe the (prospective) examination of connective tissue properties in relation to hormonal changes in pregnancy are appropriate. Given the dearth of information on MSK adaptations to pregnancy, we present a variety of morphological, mechanical and functional tendon data from two consecutive pregnancies in one woman as a means of highlighting this under-researched topic. This data may be representative of the general pregnant population, or it may be highly individualized - more research is required for a better understanding of MSK adaptation and injury risk during and after pregnancy.
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Affiliation(s)
- Charlie M Waugh
- Department of Physical Therapy, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Alexander Scott
- Department of Physical Therapy, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
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18
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Fede C, Pirri C, De Caro R, Stecco C. Myofascial pain in females and personalized care: The key role played by sex hormones. Eur J Pain 2022; 26:939-940. [PMID: 35129246 DOI: 10.1002/ejp.1920] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Caterina Fede
- Department of Neurosciences, Institute of Human Anatomy, University of Padova, Padova, Italy
| | - Carmelo Pirri
- Department of Neurosciences, Institute of Human Anatomy, University of Padova, Padova, Italy
| | - Raffaele De Caro
- Department of Neurosciences, Institute of Human Anatomy, University of Padova, Padova, Italy
| | - Carla Stecco
- Department of Neurosciences, Institute of Human Anatomy, University of Padova, Padova, Italy
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Botter C, Botter M, Pizza C, Charpy C, Pineau V, La Padula S, Meningaud JP, Hersant B. The Suspensory Ligament of the Clitoris: A New Anatomical and Histological Description. J Sex Med 2022; 19:12-20. [PMID: 34802957 DOI: 10.1016/j.jsxm.2021.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 10/03/2021] [Accepted: 10/09/2021] [Indexed: 10/19/2022]
Abstract
BACKGROUND The importance of the clitoris as an organ has been neglected by doctors and anatomists over the centuries. Its central role in female sexuality is widely recognized and respected. Although multiple studies have been conducted on the fundiform ligament of the penis, the literature concerning the suspensory ligament of the clitoris is extremely poor. The possibility to describe its complex structure may help us understand female orgasm and sexuality. AIM Carrying out an anatomical and histological study about the supporting ligaments of the clitoris and in particular the suspensory ligament of the clitoris. STUDY DESIGN A total of 10 female cadavers were dissected specifically for this study. All the supporting structures of the clitoris were studied, photographed and measured. A histological study of these structures was also carried out. RESULTS The suspensory ligament of the clitoris is a multidimensional structure consisting of three anatomically and histologically distinct components. The superficial layer originates from the anterior abdominal wall, it is the anatomical extension of the fascia superficialis of the abdomen. It mainly consists of loosely organized elastic fibers, fibroblasts and few loosely organized collagen fibers. The intermediate component also originates from the anterior abdominal wall through the extensions of the abdominal aponeurosis that reach the body of the clitoris. It completely encloses the clitoral body and sends lateral extensions to the labia majora. Histologically, this layer mainly consists of well-organized collagen fibers as well as fibroblasts. The deep component is shorter and extends from the pubic symphysis to the knee of the clitoris and also connects the two crus to the pubic symphysis. It almost exclusively consists of very well organized collagen fibers. CONCLUSION The suspensory ligament of the clitoris is a multidimensional structure that extends from the anterior abdominal wall to the clitoris. Unlike previous descriptions of the ligament supporting the clitoris, we observed that this structure consists of three anatomically and histologically distinct layers. These new anatomical considerations must be taken into account for any surgery affecting the subcutaneous tissues of the pubis and the abdomen as well as for reconstructive surgery of the clitoris and metoidioplasty.
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Affiliation(s)
- Charles Botter
- Department of Plastic, Reconstructive, Aesthetic and Maxillofacial Surgery, Henri Mondor Hospital, Créteil, France
| | - Mégane Botter
- Department of Plastic, Reconstructive, Aesthetic and Maxillofacial Surgery, Henri Mondor Hospital, Créteil, France
| | - Chiara Pizza
- Department of Plastic, Reconstructive, Aesthetic and Maxillofacial Surgery, Henri Mondor Hospital, Créteil, France
| | - Cécile Charpy
- Department of Anatomic pathology, Henri Mondor Hospital, Créteil, France
| | - Virginie Pineau
- Department of Plastic, Reconstructive, Aesthetic Surgery, Rene Huguenin Curie Institute, Saint-Cloud, France
| | - Simone La Padula
- Department of Anatomic pathology, Henri Mondor Hospital, Créteil, France
| | - Jean-Paul Meningaud
- Department of Plastic, Reconstructive, Aesthetic and Maxillofacial Surgery, Henri Mondor Hospital, Créteil, France
| | - Barbara Hersant
- Department of Plastic, Reconstructive, Aesthetic and Maxillofacial Surgery, Henri Mondor Hospital, Créteil, France
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20
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Spartacus V, Shojaeizadeh M, Raffault V, Shoults J, Van Wieren K, Sparrey CJ. In vivo soft tissue compressive properties of the human hand. PLoS One 2021; 16:e0261008. [PMID: 34898632 PMCID: PMC8668133 DOI: 10.1371/journal.pone.0261008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 11/22/2021] [Indexed: 12/25/2022] Open
Abstract
Background/Purpose Falls onto outstretched hands are the second most common sports injury and one of the leading causes of upper extremity injury. Injury risk and severity depends on forces being transmitted through the palmar surface to the upper extremity. Although the magnitude and distribution of forces depend on the soft tissue response of the palm, the in vivo properties of palmar tissue have not been characterized. The purpose of this study was to characterize the large deformation palmar soft tissue properties. Methods In vivo dynamic indentations were conducted on 15 young adults (21–29 years) to quantify the soft tissue characteristics of over the trapezium. The effects of loading rate, joint position, tissue thickness and sex on soft tissue responses were assessed. Results Energy absorbed by the soft tissue and peak force were affected by loading rate and joint angle. Energy absorbed was 1.7–2.8 times higher and the peak force was 2–2.75 times higher at high rate loading than quasistatic rates. Males had greater energy absorbed than females but not at all wrist positions. Damping characteristics were the highest in the group with the thickest soft tissue while damping characteristics were the lowest in group with the thinnest soft tissues. Conclusion Palmar tissue response changes with joint position, loading rate, sex, and tissue thickness. Accurately capturing these tissue responses is important for developing effective simulations of fall and injury biomechanics and assessing the effectiveness of injury prevention strategies.
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Affiliation(s)
- Victoria Spartacus
- Mechatronic Systems Engineering, Simon Fraser University, Surrey, British Columbia, Canada
- * E-mail:
| | - Maedeh Shojaeizadeh
- Mechatronic Systems Engineering, Simon Fraser University, Surrey, British Columbia, Canada
| | - Vincent Raffault
- Mechatronic Systems Engineering, Simon Fraser University, Surrey, British Columbia, Canada
| | - James Shoults
- Science Technical Center, Simon Fraser University, Burnaby, BC, Canada
| | - Ken Van Wieren
- Science Technical Center, Simon Fraser University, Burnaby, BC, Canada
| | - Carolyn J. Sparrey
- Mechatronic Systems Engineering, Simon Fraser University, Surrey, British Columbia, Canada
- International Collaboration on Repair Discoveries (ICORD), Vancouver, British Columbia, Canada
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21
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Fantoni I, Biz C, Fan C, Pirri C, Fede C, Petrelli L, Ruggieri P, De Caro R, Stecco C. Fascia Lata Alterations in Hip Osteoarthritis: An Observational Cross-Sectional Study. Life (Basel) 2021; 11:life11111136. [PMID: 34833012 PMCID: PMC8625990 DOI: 10.3390/life11111136] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 10/12/2021] [Accepted: 10/22/2021] [Indexed: 12/25/2022] Open
Abstract
The present study compares the structure and composition of fascia lata in healthy subjects and in patients with hip osteoarthritis (OA), to evaluate any differences in the amount of Collagen type I, Collagen type III, and Hyaluronan. Fascia lata samples from voluntary healthy subjects and patients with OA were harvested during surgery. Collagen type I (COL I), III (COL III) antibody, and biotinylated hyaluronan binding protein (HABP) immunohistochemistry stainings were used to evaluate fascial morphology and COL I, COL III, and Hyaluronan (HA) content in both groups. Ten samples from healthy subjects and 11 samples from OA patients were collected. COL I was significantly more abundant in the OA group (p = 0.0015), with a median percentage positivity of 75.2 (IQR 13.11)%, while representing only 67 (IQR: 8.71)% in control cases. COL III, with median values of 9.5 (IQR 3.63)% (OA group) and 17.10 (IQR 11)% (control cases), respectively, showed significant reduction in OA patients (p = 0.002). HA showed a median value of 10.01 (IQR 8.11)% in OA patients, denoting significant decrease (p < 0.0001) with respect to the control group median 39.31 (IQR 5.62)%. The observed differences suggest a relationship between fascial pathology and hip OA. The observed increase in COL I in OA patients, along with the reduction of COL III and HA, could lead to fascial stiffening, which could alter fascial mechanics and be linked to the development and symptoms of OA.
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Affiliation(s)
- Ilaria Fantoni
- Orthopedics and Orthopedic Oncology, Department of Surgery, Oncology and Gastroenterology (DiSCOG), University of Padua, 35128 Padua, Italy; (I.F.); (C.B.); (P.R.)
| | - Carlo Biz
- Orthopedics and Orthopedic Oncology, Department of Surgery, Oncology and Gastroenterology (DiSCOG), University of Padua, 35128 Padua, Italy; (I.F.); (C.B.); (P.R.)
| | - Chenglei Fan
- Department of Neurosciences, Institute of Human Anatomy, University of Padua, 35121 Padua, Italy; (C.F.); (C.F.); (L.P.); (R.D.C.); (C.S.)
| | - Carmelo Pirri
- Department of Neurosciences, Institute of Human Anatomy, University of Padua, 35121 Padua, Italy; (C.F.); (C.F.); (L.P.); (R.D.C.); (C.S.)
- Correspondence:
| | - Caterina Fede
- Department of Neurosciences, Institute of Human Anatomy, University of Padua, 35121 Padua, Italy; (C.F.); (C.F.); (L.P.); (R.D.C.); (C.S.)
| | - Lucia Petrelli
- Department of Neurosciences, Institute of Human Anatomy, University of Padua, 35121 Padua, Italy; (C.F.); (C.F.); (L.P.); (R.D.C.); (C.S.)
| | - Pietro Ruggieri
- Orthopedics and Orthopedic Oncology, Department of Surgery, Oncology and Gastroenterology (DiSCOG), University of Padua, 35128 Padua, Italy; (I.F.); (C.B.); (P.R.)
| | - Raffaele De Caro
- Department of Neurosciences, Institute of Human Anatomy, University of Padua, 35121 Padua, Italy; (C.F.); (C.F.); (L.P.); (R.D.C.); (C.S.)
| | - Carla Stecco
- Department of Neurosciences, Institute of Human Anatomy, University of Padua, 35121 Padua, Italy; (C.F.); (C.F.); (L.P.); (R.D.C.); (C.S.)
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22
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Ranganath LR, Milan AM, Bay-Jensen AC, Thudium CS. A case report of pregnancy in untreated alkaptonuria - Focus on urinary tissue remodelling markers. Mol Genet Metab Rep 2021; 27:100766. [PMID: 33996493 PMCID: PMC8102796 DOI: 10.1016/j.ymgmr.2021.100766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 04/23/2021] [Accepted: 04/24/2021] [Indexed: 11/13/2022] Open
Abstract
A 34-year old woman with alkaptonuria had an elective pregnancy, during which she collected urine samples over the duration of her pregnancy until parturition. She had been attending the National Alkaptonuria Centre from the age of 31 years and continued to attend after delivery for a further three annual visits. Data from her NAC visits as well as urine samples collected during pregnancy were analysed. Urine CTX-1/urine creatinine, urine αCTX-I/ urine creatinine, urine CTX-II/ urine creatinine, and urine C3M/urine creatinine all showed a rapid increase early in pregnancy, returning to baseline before increasing in late pregnancy, indicating significant remodelling of bone, subchondral bone, cartilage and other organs and connective tissue rich in collagens I, II and III. The pattern of tissue remodelling in AKU pregnancy has been described for the very first time. Further research is needed to understand pregnancy in AKU.
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Affiliation(s)
- L R Ranganath
- Departments of Clinical Biochemistry and Metabolic Medicine, Herlev, Denmark
| | - A M Milan
- Departments of Clinical Biochemistry and Metabolic Medicine, Herlev, Denmark
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23
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A Closer Look at the Cellular and Molecular Components of the Deep/Muscular Fasciae. Int J Mol Sci 2021; 22:ijms22031411. [PMID: 33573365 PMCID: PMC7866861 DOI: 10.3390/ijms22031411] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/26/2021] [Accepted: 01/27/2021] [Indexed: 12/16/2022] Open
Abstract
The fascia can be defined as a dynamic highly complex connective tissue network composed of different types of cells embedded in the extracellular matrix and nervous fibers: each component plays a specific role in the fascial system changing and responding to stimuli in different ways. This review intends to discuss the various components of the fascia and their specific roles; this will be carried out in the effort to shed light on the mechanisms by which they affect the entire network and all body systems. A clear understanding of fascial anatomy from a microscopic viewpoint can further elucidate its physiological and pathological characteristics and facilitate the identification of appropriate treatment strategies.
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Jędrzejewski G, Kasper-Jędrzejewska M, Dolibog P, Szyguła R, Schleip R, Halski T. The Rolf Method of Structural Integration on Fascial Tissue Stiffness, Elasticity, and Superficial Blood Perfusion in Healthy Individuals: The Prospective, Interventional Study. Front Physiol 2020; 11:1062. [PMID: 33041843 PMCID: PMC7522439 DOI: 10.3389/fphys.2020.01062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Accepted: 07/31/2020] [Indexed: 12/16/2022] Open
Abstract
Introduction: There are multiple theories surrounding the physiological impact of structural integration (SI) with little evidence or research corroborating any of these. The aim of the study was to assess the effectiveness of 10 sessions of SI on fascial tissue (FT) superficial blood perfusion, stiffness, and elasticity in 13 healthy women. Methods: This was a prospective, interventional study. The primary outcome measures were FTs’ superficial blood perfusion, stiffness, and elasticity of bilateral selected FT points on the body. Data were collected before and after 10 sessions of SI intervention. Statistical analysis was performed using the non-parametric Wilcoxon test (intragroup comparison). Results: The superficial blood perfusion increased significantly in the most selected FT points on the body (p < 0.05). SI interventions produced significant decreases in selected points (brachioradialis, biceps brachii, and trapezius; p < 0.05) of FT stiffness and significant increases in elasticity (brachioradialis, biceps brachii, triceps surae, and trapezius; p < 0.05), especially in the FT of the right (dominant) upper limb. Conclusion: A 10-session of SI demonstrated positive effects on increasing superficial blood perfusion contributed to a decrease in FT stiffness and an increase in elasticity properties in the dominant upper limb. Data collection for this study is currently underway, and the trial is registered at ISRCTN.com with the identifier: ISRCTN46707309.
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Affiliation(s)
| | | | - Paweł Dolibog
- Faculty of Health Sciences, University of Opole, Opole, Poland
| | - Renata Szyguła
- Faculty of Health Sciences, University of Opole, Opole, Poland
| | - Robert Schleip
- Department of Sport and Health Sciences, Technical University Munich, Munich, Germany.,Diploma University of Applied Sciences, Bad Sooden-Allendorf, Germany
| | - Tomasz Halski
- Faculty of Health Sciences, University of Opole, Opole, Poland
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25
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Fan C, Guidolin D, Ragazzo S, Fede C, Pirri C, Gaudreault N, Porzionato A, Macchi V, De Caro R, Stecco C. Effects of Cesarean Section and Vaginal Delivery on Abdominal Muscles and Fasciae. ACTA ACUST UNITED AC 2020; 56:medicina56060260. [PMID: 32471194 PMCID: PMC7353893 DOI: 10.3390/medicina56060260] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 05/21/2020] [Accepted: 05/26/2020] [Indexed: 12/15/2022]
Abstract
Background and objectives: Possible disorders after delivery may interfere with the quality of life. The aim of this study was to ascertain whether abdominal muscles and fasciae differ in women depending on whether they experienced transverse cesarean section (CS) or vaginal delivery (VA) in comparison with healthy nulliparous (NU). Materials and methods: The thicknesses of abdominal muscles and fasciae were evaluated by ultrasound in 13 CS, 10 VA, and 13 NU women (we examined rectus abdominis (RA); external oblique (EO); internal oblique (IO); transversus abdominis (TrA); total abdominal muscles (TAM = EO + IO + TrA); inter-rectus distance (IRD); thickness of linea alba (TLA); rectus sheath (RS), which includes anterior fascia of RS and posterior fascia of RS (P-RS); loose connective tissue between sublayers of P-RS (LCT); abdominal perimuscular fasciae (APF), which includes anterior fascia of EO, fasciae between EO, IO, and TrA, and posterior fascia of TrA). Data on pain intensity, duration, and location were collected. Results: Compared with NU women, CS women had wider IRD (p = 0.004), thinner left RA (p = 0.020), thicker right RS (p = 0.035) and APF (left: p = 0.001; right: p = 0.001), and IO dissymmetry (p = 0.009). VA women had thinner RA (left: p = 0.008, right: p = 0.043) and left TAM (p = 0.024), mainly due to left IO (p = 0.027) and RA dissymmetry (p = 0.035). However, CS women had thicker LCT (left: p = 0.036, right: p < 0.001), APF (left: p = 0.014; right: p = 0.007), and right IO (p = 0.028) than VA women. There were significant correlations between pain duration and the affected fasciae/muscles in CS women. Conclusions: CS women showed significant alterations in both abdominal fasciae and muscle thicknesses, whereas VA women showed alterations mainly in muscles. Thinner RA and/or dissymmetric IO, wider IRD, and thicker LCT and APF after CS may cause muscle deficits and alteration of fascial gliding, which may induce scar, abdominal, low back, and/or pelvic pain.
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Affiliation(s)
- Chenglei Fan
- Department of Neurosciences, Institute of Human Anatomy, University of Padua, 35121 Padua, Italy; (C.F.); (D.G.); (S.R.); (C.F.); (C.P.); (A.P.); (V.M.); (R.D.C.)
| | - Diego Guidolin
- Department of Neurosciences, Institute of Human Anatomy, University of Padua, 35121 Padua, Italy; (C.F.); (D.G.); (S.R.); (C.F.); (C.P.); (A.P.); (V.M.); (R.D.C.)
| | - Serena Ragazzo
- Department of Neurosciences, Institute of Human Anatomy, University of Padua, 35121 Padua, Italy; (C.F.); (D.G.); (S.R.); (C.F.); (C.P.); (A.P.); (V.M.); (R.D.C.)
| | - Caterina Fede
- Department of Neurosciences, Institute of Human Anatomy, University of Padua, 35121 Padua, Italy; (C.F.); (D.G.); (S.R.); (C.F.); (C.P.); (A.P.); (V.M.); (R.D.C.)
| | - Carmelo Pirri
- Department of Neurosciences, Institute of Human Anatomy, University of Padua, 35121 Padua, Italy; (C.F.); (D.G.); (S.R.); (C.F.); (C.P.); (A.P.); (V.M.); (R.D.C.)
| | - Nathaly Gaudreault
- Faculty of Medicine and Health Sciences, School of Rehabilitation, University of Sherbrooke, 3001, 12e Avenue Nord, Sherbrooke, QC J1H 5N4, Canada;
| | - Andrea Porzionato
- Department of Neurosciences, Institute of Human Anatomy, University of Padua, 35121 Padua, Italy; (C.F.); (D.G.); (S.R.); (C.F.); (C.P.); (A.P.); (V.M.); (R.D.C.)
| | - Veronica Macchi
- Department of Neurosciences, Institute of Human Anatomy, University of Padua, 35121 Padua, Italy; (C.F.); (D.G.); (S.R.); (C.F.); (C.P.); (A.P.); (V.M.); (R.D.C.)
| | - Raffaele De Caro
- Department of Neurosciences, Institute of Human Anatomy, University of Padua, 35121 Padua, Italy; (C.F.); (D.G.); (S.R.); (C.F.); (C.P.); (A.P.); (V.M.); (R.D.C.)
| | - Carla Stecco
- Department of Neurosciences, Institute of Human Anatomy, University of Padua, 35121 Padua, Italy; (C.F.); (D.G.); (S.R.); (C.F.); (C.P.); (A.P.); (V.M.); (R.D.C.)
- Correspondence: ; Tel.: +39-049-8272315; Fax: +39-049-8272328
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26
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Sensitivity of the Fasciae to the Endocannabinoid System: Production of Hyaluronan-Rich Vesicles and Potential Peripheral Effects of Cannabinoids in Fascial Tissue. Int J Mol Sci 2020; 21:ijms21082936. [PMID: 32331297 PMCID: PMC7216169 DOI: 10.3390/ijms21082936] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 04/17/2020] [Accepted: 04/20/2020] [Indexed: 12/19/2022] Open
Abstract
The demonstrated expression of endocannabinoid receptors in myofascial tissue suggested the role of fascia as a source and modulator of pain. Fibroblasts can modulate the production of the various components of the extracellular matrix, according to type of stimuli: physical, mechanical, hormonal, and pharmacological. In this work, fascial fibroblasts were isolated from small samples of human fascia lata of the thigh, collected from three volunteer patients (two men, one woman) during orthopedic surgery. This text demonstrates for the first time that the agonist of cannabinoid receptor 2, HU-308, can lead to in vitro production of hyaluronan-rich vesicles only 3–4 h after treatment, being rapidly released into the extracellular environment. We demonstrated that these vesicles are rich in hyaluronan after Alcian blue and Toluidine blue stainings, immunocytochemistry, and transmission electron microscopy. In addition, incubation with the antagonist AM630 blocked vesicles production by cells, confirming that release of hyaluronan is a cannabinoid-mediated effect. These results may show how fascial cells respond to the endocannabinoid system by regulating and remodeling the formation of the extracellular matrix. This is a first step in our understanding of how therapeutic applications of cannabinoids to treat pain may also have a peripheral effect, altering the biosynthesis of the extracellular matrix in fasciae and, consequently, remodeling the tissue and its properties.
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Carraro U. Thirty years of translational research in Mobility Medicine: Collection of abstracts of the 2020 Padua Muscle Days. Eur J Transl Myol 2020; 30:8826. [PMID: 32499887 PMCID: PMC7254447 DOI: 10.4081/ejtm.2019.8826] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 01/22/2020] [Indexed: 12/11/2022] Open
Abstract
More than half a century of skeletal muscle research is continuing at Padua University (Italy) under the auspices of the Interdepartmental Research Centre of Myology (CIR-Myo), the European Journal of Translational Myology (EJTM) and recently also with the support of the A&CM-C Foundation for Translational Myology, Padova, Italy. The Volume 30(1), 2020 of the EJTM opens with the collection of abstracts for the conference "2020 Padua Muscle Days: Mobility Medicine 30 years of Translational Research". This is an international conference that will be held between March 18-21, 2020 in Euganei Hills and Padova in Italy. The abstracts are excellent examples of translational research and of the multidimensional approaches that are needed to classify and manage (in both the acute and chronic phases) diseases of Mobility that span from neurologic, metabolic and traumatic syndromes to the biological process of aging. One of the typical aim of Physical Medicine and Rehabilitation is indeed to reduce pain and increase mobility enough to enable impaired persons to walk freely, garden, and drive again. The excellent contents of this Collection of Abstracts reflect the high scientific caliber of researchers and clinicians who are eager to present their results at the PaduaMuscleDays. A series of EJTM Communications will also add to this preliminary evidence.
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Affiliation(s)
- Ugo Carraro
- Interdepartmental Research Centre of Myology (CIR-Myo), Department of Biomedical Sciences, University of Padova, Italy
- A&C M-C Foundation for Translational Myology, Padova, Italy
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Opposing Effects of Adenosine and Inosine in Human Subcutaneous Fibroblasts May Be Regulated by Third Party ADA Cell Providers. Cells 2020; 9:cells9030651. [PMID: 32156055 PMCID: PMC7140481 DOI: 10.3390/cells9030651] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 02/27/2020] [Accepted: 03/05/2020] [Indexed: 12/11/2022] Open
Abstract
Human subcutaneous fibroblasts (HSCF) challenged with inflammatory mediators release huge amounts of ATP, which rapidly generates adenosine. Given the nucleoside’s putative relevance in wound healing, dermal fibrosis, and myofascial pain, we investigated the role of its precursor, AMP, and of its metabolite, inosine, in HSCF cells growth and collagen production. AMP (30 µM) was rapidly (t½ 3 ± 1 min) dephosphorylated into adenosine by CD73/ecto-5′-nucleotidase. Adenosine accumulation (t½ 158 ± 17 min) in the extracellular fluid reflected very low cellular adenosine deaminase (ADA) activity. HSCF stained positively against A2A and A3 receptors but were A1 and A2B negative. AMP and the A2A receptor agonist, CGS21680C, increased collagen production without affecting cells growth. The A2A receptor antagonist, SCH442416, prevented the effects of AMP and CGS21680C. Inosine and the A3 receptor agonist, 2Cl-IB-MECA, decreased HSCF growth and collagen production in a MRS1191-sensitive manner, implicating the A3 receptor in the anti-proliferative action of inosine. Incubation with ADA reproduced the inosine effect. In conclusion, adenosine originated from extracellular ATP hydrolysis favors normal collagen production by HSCF via A2A receptors. Inhibition of unpredicted inosine formation by third party ADA cell providers (e.g., inflammatory cells) may be a novel therapeutic target to prevent inappropriate dermal remodeling via A3 receptors activation.
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