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Longwolf KJ, Johnson CE, Horns JJ, Hotaling JM, Brooke BS. Exogenous Testosterone Replacement Therapy Is Associated with Increased Risk for Vascular Graft Infections Among Hypogonadal Men. Ann Vasc Surg 2023; 97:113-120. [PMID: 37453467 DOI: 10.1016/j.avsg.2023.06.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 06/29/2023] [Accepted: 06/30/2023] [Indexed: 07/18/2023]
Abstract
BACKGROUND Vascular graft infections (VGIs) are a major source of morbidity following vascular bypass surgery. Hypogonadal men may be at increased risk for impaired wound healing and infections, but it is unclear if testosterone replacement therapy (TRT) mitigates this risk. We designed this study to evaluate the relationship between hypogonadism and the use of testosterone replacement therapy (TRT) with subsequent risk for developing a VGI. METHODS We performed a retrospective analysis of claims in the MarketScan database identifying men greater than 18 years of age who underwent placement of a prosthetic graft in the peripheral arterial circulation from January 2009 to December 2020. Patients were stratified based on diagnosis of hypogonadism and use of TRT within 180 days before surgery. The primary outcome was VGI and the need for surgical excision. The association between hypogonadism and TRT use on risk of VGI was analyzed using Kaplan-Meier plots and multivariate Cox proportional hazards models. RESULTS We identified 18,312 men who underwent a prosthetic bypass graft procedure in the upper and lower extremity during the study period, of which 802 (5%) had diagnosis of hypogonadism. Among men with hypogonadism, 251 (31%) were receiving TRT. Patients on TRT were younger, more likely to be diabetic, and more likely develop a VGI during follow-up (14% vs. 8%; P < 0.001) that was in the lower extremity. At 5 years, freedom from VGI was significantly lower for hypogonadal men on TRT than patients not on TRT or without hypogonadism (Log rank P < 0.001). In Cox regression models adjusted for age, diabetes, obesity, smoking, corticosteroid use, and procedure type, hypogonadal men on TRT were at a significantly increased risk of graft infection (hazard ratio (HR):1.94, 95% confidence interval (CI):1.4-2.7; P < 0.001) compared to controls. CONCLUSIONS This study demonstrates TRT among hypogonadal men is associated with an increased risk of prosthetic VGIs. Temporary cessation of TRT should be considered for men undergoing prosthetic graft implants, particularly those in the lower extremity.
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Affiliation(s)
- Kaohinani J Longwolf
- Division of Vascular Surgery, Department of Surgery, University of Utah Health, Salt Lake City, UT
| | - Cali E Johnson
- Division of Vascular Surgery, Department of Surgery, University of Utah Health, Salt Lake City, UT
| | - Joshua J Horns
- Surgical Population Analysis Research Core (SPARC), Department of Surgery, University of Utah Health, Salt Lake City, UT
| | - James M Hotaling
- Surgical Population Analysis Research Core (SPARC), Department of Surgery, University of Utah Health, Salt Lake City, UT; Division of Urology, Department of Surgery, University of Utah Health, Salt Lake City, UT
| | - Benjamin S Brooke
- Division of Vascular Surgery, Department of Surgery, University of Utah Health, Salt Lake City, UT; Surgical Population Analysis Research Core (SPARC), Department of Surgery, University of Utah Health, Salt Lake City, UT.
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Ahmed S, Qureshi AS, Usman M, Rehan S, Deeba F, Ateeq MK, Younus M, Naeem MA, Umar Z, Taseer MSA. Seasonal changes in the scrotal skin histology in relation to thermoregulation and testosterone level in camel and buffalo bull. Anat Histol Embryol 2023; 52:752-761. [PMID: 37254452 DOI: 10.1111/ahe.12933] [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: 02/25/2023] [Revised: 05/08/2023] [Accepted: 05/10/2023] [Indexed: 06/01/2023]
Abstract
This study was conducted to compare the scrotal skin dynamics of camel and buffalo bulls regarding thermoregulation, season and testosterone. Scrotal skin and blood samples (n = 8 each) were collected during breeding (October to March) and non-breeding seasons (April to August). Tissue slides were prepared by the paraffin embedding technique followed by hematoxylin and eosin (H&E) staining and were analysed by ImageJ®. Relative humidity and temperature were recorded in different seasons to calculate the thermal humidity index (THI). Serum testosterone level was estimated through radioimmunoassay (RIA). The data were analysed by applying ANOVA, the THS test was used as a post-ANOVA interface and the correlation coefficient was also calculated among season, testosterone and skin parameters. The results showed that skin thickness, season and THI were negatively correlated with testosterone levels. In the neck, body and apex, the papillary layer was thicker in buffalo bull compared to camel bull during the breeding season; however, the reticular layer followed a reverse trend in the apex when THI was low. In the scrotal neck during the non-breeding season, hair follicle (HF) length and density were recorded high in camel bull compared to buffalo bull when THI was elevated. The density of HF followed the otherwise trend in the apex during the breeding season. The density of SG was found highest in all regions of camel bull as compared to buffalo bull and showed direct relation with THI. To conclude, this study delineates how the histo-dynamics of scrotal skin varies and accommodate itself with testosterone and THI over the different season in camel and buffalo.
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Affiliation(s)
- Shakil Ahmed
- Department of Anatomy, Faculty of Veterinary Science, University of Agriculture, Faisalabad, Pakistan
| | - Anas Sarwar Qureshi
- Department of Anatomy, Faculty of Veterinary Science, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Usman
- Department of Basic Sciences (Histology), University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Sarmad Rehan
- Department of Anatomy, Faculty of Veterinary Science, University of Agriculture, Faisalabad, Pakistan
| | - Farrah Deeba
- Department of Clinical Medicine and Surgery, Faculty of Veterinary Science, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Khalil Ateeq
- Department of Basic Sciences (Histology), University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Muhammad Younus
- Department of Pathobiology (Pathology), University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Muhammad Ahsan Naeem
- Department of Basic Sciences (Pharmacology), University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Zaima Umar
- Department of Anatomy, The University of Faisalabad-Health Sciences Wing, Faisalabad, Pakistan
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Manestar D, Malvic G, Velepic M, Vukelic J, Vrebac I, Tudor F, Vukelic I, Braut T. Perioperative substitution testosterone therapy in patients with advanced head and neck squamous cell carcinoma. Crit Rev Oncol Hematol 2023:104062. [PMID: 37385306 DOI: 10.1016/j.critrevonc.2023.104062] [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: 01/13/2023] [Revised: 06/04/2023] [Accepted: 06/25/2023] [Indexed: 07/01/2023] Open
Abstract
Testosterone replacement therapy is becoming more and more popular in men as "anti-aging medicine". Testosterone has beneficial effects on body mass and muscle gain, and much research has examined testosterone in palliative cancer therapy for oncology patients. In addition to direct effects on weight gain, testosterone improves mood and self-confidence, strength, libido, muscle mass, bone density, and cognitive functions and reduces the risk of cardiovascular disease. Lower testosterone levels are found in 65% of male patients with progressive tumors compared to only 6% of men in the general population. We hypothesize that perioperative substitution testosterone therapy (PSTT) together with a balanced diet, may be more effective than balanced diet alone in the overall treatment outcome of patients with head and neck squamous cell carcinomas. Therefore, PSTT in combination with a balanced diet should be considered as an additional tool for head and neck carcinoma treatment.
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Affiliation(s)
- Dubravko Manestar
- Clinic for Otorhinolaryngology and Head and Neck Surgery, Clinical Hospital Centre Rijeka, Kresimirova 42, Rijeka, Croatia; Faculty of Medicine, University of Rijeka, Brace Branchetta 20, Rijeka, Croatia
| | - Goran Malvic
- Clinic for Otorhinolaryngology and Head and Neck Surgery, Clinical Hospital Centre Rijeka, Kresimirova 42, Rijeka, Croatia; Faculty of Medicine, University of Rijeka, Brace Branchetta 20, Rijeka, Croatia
| | - Marko Velepic
- Clinic for Otorhinolaryngology and Head and Neck Surgery, Clinical Hospital Centre Rijeka, Kresimirova 42, Rijeka, Croatia; Faculty of Medicine, University of Rijeka, Brace Branchetta 20, Rijeka, Croatia
| | - Jelena Vukelic
- Faculty of Medicine, University of Rijeka, Brace Branchetta 20, Rijeka, Croatia; Department for Audiology and Speech Language Pathology, Clinical Hospital Centre Rijeka, Kresimirova 42, Rijeka, Croatia
| | - Ilinko Vrebac
- Clinic for Otorhinolaryngology and Head and Neck Surgery, Clinical Hospital Centre Rijeka, Kresimirova 42, Rijeka, Croatia; Faculty of Medicine, University of Rijeka, Brace Branchetta 20, Rijeka, Croatia.
| | - Filip Tudor
- Clinic for Otorhinolaryngology and Head and Neck Surgery, Clinical Hospital Centre Rijeka, Kresimirova 42, Rijeka, Croatia; Faculty of Medicine, University of Rijeka, Brace Branchetta 20, Rijeka, Croatia
| | - Ivan Vukelic
- Faculty of Medicine, University of Rijeka, Brace Branchetta 20, Rijeka, Croatia; Clinic for Urology, Clinical Hospital Centre Rijeka, Tome Strizica 3, Rijeka
| | - Tamara Braut
- Clinic for Otorhinolaryngology and Head and Neck Surgery, Clinical Hospital Centre Rijeka, Kresimirova 42, Rijeka, Croatia; Faculty of Medicine, University of Rijeka, Brace Branchetta 20, Rijeka, Croatia
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Pelegrin ÁF, de Paiva Gonçalves V, Carvalho JDS, Spolidorio DMP, Spolidorio LC. Testosterone replacement relieves ligature-induced periodontitis by mitigating inflammation, increasing pro-resolving markers and promoting angiogenesis in rats: A preclinical study. Arch Oral Biol 2023; 146:105605. [PMID: 36521281 DOI: 10.1016/j.archoralbio.2022.105605] [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: 09/29/2022] [Revised: 11/13/2022] [Accepted: 12/07/2022] [Indexed: 12/14/2022]
Abstract
OBJECTIVES This study aimed to evaluate the inflammatory profile as well as the resolution of inflammation in a ligature-induced periodontal inflammation in rats with depletion and/or supraphysiological testosterone replacement. DESIGN Sixty male rats (Holtzman) were used in the present study. Study groups were created as following: (1) Sham (no testicle removal); (2) Orchiectomy (OCX), 3) OCX + Testosterone (OCX + T); (4) Sham + Ligature (SH + L); (5) OCX+L; and 6) OCX + T + L. The surgeries were performed on day 1, and testosterone was administered weekly since day 1. On day 15, a cotton ligature was placed around the lower first molars and maintained for 15 days. Morphological changes in periodontal tissues were determined by histopathological analysis. Immunohistochemistry (factor VIII) and immunoenzymatic assay were performed to evaluate angiogenesis process and (pro- and anti-) inflammatory markers, respectively. RESULTS Ligature promoted a marked inflammatory gingival infiltrate and bone loss (P < 0.05). Supraphysiological testosterone treatment increased the percentage of blood vessels, extracellular matrix and fibroblasts in the presence and absence of periodontal inflammation (P < 0.05). A high dose of testosterone increased factor VIII+ blood vessels and IL-10 expression in inflamed gingival tissue, while PGE2, LXA4 and MPO were reduced as a result of supraphysiological testosterone administration (P < 0.05). CONCLUSIONS These results, in our experimental model, suggest that supraphysiological testosterone treatment stimulated gingival tissue repair during ligature-induced periodontitis, and it seems to be related to an anti-inflammatory and pro-resolutive mechanism resulting by the modulatory effect on PGE2 and IL-10 related to an enhanced angiogenesis.
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Affiliation(s)
- Álvaro Formoso Pelegrin
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University - UNESP, 1680 Humaitá St., - Center, 14801-903, Araraquara, SP, Brazil.
| | - Vinícius de Paiva Gonçalves
- Department of Dentistry, Pontifical Catholic University of Minas Gerais, 500 Dom José Gaspar Avenue, - Coração Eucarístico, 30535-901 Belo Horizonte, MG, Brazil.
| | - Jhonatan de Souza Carvalho
- Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University - UNESP, 1680 Humaitá St., - Center, 14801-903, Araraquara, SP, Brazil.
| | - Denise Madalena Palomari Spolidorio
- Department of Physiology and Pathology, School of Dentistry, São Paulo State University - UNESP, 1680 Humaitá St., - Center, 14801-903, Araraquara, SP, Brazil.
| | - Luís Carlos Spolidorio
- Department of Physiology and Pathology, School of Dentistry, São Paulo State University - UNESP, 1680 Humaitá St., - Center, 14801-903, Araraquara, SP, Brazil.
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Davezac M, Buscato M, Zahreddine R, Lacolley P, Henrion D, Lenfant F, Arnal JF, Fontaine C. Estrogen Receptor and Vascular Aging. FRONTIERS IN AGING 2022; 2:727380. [PMID: 35821994 PMCID: PMC9261451 DOI: 10.3389/fragi.2021.727380] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 09/10/2021] [Indexed: 12/13/2022]
Abstract
Cardiovascular diseases remain an age-related pathology in both men and women. These pathologies are 3-fold more frequent in men than in women before menopause, although this difference progressively decreases after menopause. The vasculoprotective role of estrogens are well established before menopause, but the consequences of their abrupt decline on the cardiovascular risk at menopause remain debated. In this review, we will attempt to summarize the main clinical and experimental studies reporting the protective effects of estrogens against cardiovascular diseases, with a particular focus on atherosclerosis, and the impact of aging and estrogen deprivation on their endothelial actions. The arterial actions of estrogens, but also part of that of androgens through their aromatization into estrogens, are mediated by the estrogen receptor (ER)α and ERβ. ERs belong to the nuclear receptor family and act by transcriptional regulation in the nucleus, but also exert non-genomic/extranuclear actions. Beside the decline of estrogens at menopause, abnormalities in the expression and/or function of ERs in the tissues, and particularly in arteries, could contribute to the failure of classic estrogens to protect arteries during aging. Finally, we will discuss how recent insights in the mechanisms of action of ERα could contribute to optimize the hormonal treatment of the menopause.
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Affiliation(s)
- Morgane Davezac
- INSERM-UPS UMR U1297, Institut des Maladies Métaboliques et Cardiovasculaires, Université de Toulouse, Toulouse, France
| | - Melissa Buscato
- INSERM-UPS UMR U1297, Institut des Maladies Métaboliques et Cardiovasculaires, Université de Toulouse, Toulouse, France
| | - Rana Zahreddine
- INSERM-UPS UMR U1297, Institut des Maladies Métaboliques et Cardiovasculaires, Université de Toulouse, Toulouse, France
| | - Patrick Lacolley
- INSERM, UMR_S 1116, DCAC Institute, Université de Lorraine, Vandœuvre-lès-Nancy, France
| | - Daniel Henrion
- INSERM U1083 CNRS UMR 6015, CHU, MITOVASC Institute and CARFI Facility, Université d'Angers, Angers, France
| | - Francoise Lenfant
- INSERM-UPS UMR U1297, Institut des Maladies Métaboliques et Cardiovasculaires, Université de Toulouse, Toulouse, France
| | - Jean-Francois Arnal
- INSERM-UPS UMR U1297, Institut des Maladies Métaboliques et Cardiovasculaires, Université de Toulouse, Toulouse, France
| | - Coralie Fontaine
- INSERM-UPS UMR U1297, Institut des Maladies Métaboliques et Cardiovasculaires, Université de Toulouse, Toulouse, France
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de Paiva Gonçalves V, Steffens JP, Junior CR, Spolidorio LC. Supraphysiological testosterone supplementation improves granulation tissue maturation through angiogenesis in the early phase of a cutaneous wound healing model in rats. Inflamm Res 2022; 71:473-483. [PMID: 35355085 DOI: 10.1007/s00011-022-01553-7] [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: 05/20/2021] [Revised: 02/10/2022] [Accepted: 02/21/2022] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVE The aim of this study was to evaluate the effects of both testosterone depletion and supraphysiological testosterone supplementation in the early phase of an animal cutaneous wound healing model in comparison with the physiological hormonal condition. MATERIAL AND METHODS Forty rats were distributed into the following four groups: Control, Orchiectomy (OCX), Durateston (Dura) and OCX+Dura. On day 1, the testicles were removed (OCX group) and the rats (Dura group) received a supraphysiological dose (250 mg/kg) of exogenous testosterone weekly. After 15 days a full-thickness excisional skin wound was created in all animals, which was healed by the second intention for 7 days. On day 22, the rats were euthanatized and the wounds were harvested for histopathological evaluation, immunohistochemistry analyses and multiplex immunoassay. One-way ANOVA and post-hoc Tukey tests were performed. RESULTS It was found that the supraphysiological testosterone level increased extracellular matrix deposition, promoted higher blood vessel formation and reduced wound contraction (p < 0.05). Additionally, it also stimulated PCNA-positive fibroblasts and KGF-positive cells (p < 0.05), while orchiectomy reduced the expression of IL-6 and TNF-α and increased VEGF and PDGF (p < 0.05) . CONCLUSION In conclusion, the results provide evidence that supraphysiological testosterone supplementation plays a positive role in the early phase of cutaneous wound healing, thus improving granulation tissue maturation through the enhancement of angiogenesis.
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Affiliation(s)
- Vinícius de Paiva Gonçalves
- Department of Physiology and Pathology, Araraquara School of Dentistry, University of São Paulo State, UNESP, Humaitá St., 1680 - Center, Araraquara, SP, 14801-903, Brazil.
| | - João Paulo Steffens
- Department of Stomatology, Federal University of Paraná, UFPR, Pref. Lothário Meissner Av., 632 - Center, Curitiba, PR, 80210-170, Brazil
| | - Carlos Rossa Junior
- Department of Diagnosis and Surgery, Araraquara School of Dentistry, University of São Paulo State, UNESP, Humaitá St., 1680 - Center, Araraquara, SP, 14801-903, Brazil
| | - Luís Carlos Spolidorio
- Department of Physiology and Pathology, Araraquara School of Dentistry, University of São Paulo State, UNESP, Humaitá St., 1680 - Center, Araraquara, SP, 14801-903, Brazil
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Bas S, Ucak R, Sizmaz M, Hascicek S, Karsidag SH. Perivascular Injections of Botulinum Toxin Type A Versus Low Concentration of Ethanol. J Surg Res 2022; 269:218-228. [PMID: 34607144 DOI: 10.1016/j.jss.2021.08.023] [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: 04/27/2021] [Revised: 08/16/2021] [Accepted: 08/30/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND This study aimed to investigate the effect of low concentration ethanol in increasing flap viability by perioperative perivascular application and compared it with that of botulinum toxin type A (BTX-A). MATERIALS AND METHODS Twenty-seven Wistar albino rats weighing 300-350 g were used in this study. The subjects were randomly divided into three equal groups: group E (ethanol, n = 9), group B (BTX-A, n = 9), and group S (saline, n = 9). In rats, the dorsal multi-territory perforator flap was elevated, and the agents were injected. In postoperative 1 wk, flap viability and vascular endothelial growth factor levels were evaluated. Also, blood flow, microvascular density, and inflammation degree of both choke zones were assessed. RESULTS The mean flap survival area and vascular endothelial growth factor level were significantly higher in group E than in group B and S (P < 0.001). Similarly, blood flow (first choke zone, P < 0.012, and second choke zone, P < 0.001) and microvascular density (first choke zone and second choke zone, P < 0.001) were found to be higher in Group E compared to Group B and S in the evaluation performed from both choke zones. Also, significant inflammation was detected in the ethanol group. CONCLUSIONS The positive effects of BTX-A on flap viability were achieved with a low concentration of ethanol. The fact that a low concentration of ethanol increases blood flow, angiogenesis, and flap viability more than BTX-A in the first postoperative week indicates that it can be an alternative agent for perioperative use.
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Affiliation(s)
- Soysal Bas
- Department of Plastic, Reconstructive and Aesthetic Surgery, University of Health Sciences, Sisli Hamidiye Etfal Training and Research Hospital, Istanbul, Turkey.
| | - Ramazan Ucak
- Department of Pathology, University of Health Sciences, Sisli Hamidiye Etfal Training and Research Hospital, Istanbul, Turkey
| | - Mert Sizmaz
- Department of Plastic, Reconstructive and Aesthetic Surgery, University of Health Sciences, Sisli Hamidiye Etfal Training and Research Hospital, Istanbul, Turkey
| | - Seyhan Hascicek
- Department of Pathology, University of Health Sciences, Sisli Hamidiye Etfal Training and Research Hospital, Istanbul, Turkey
| | - Semra H Karsidag
- Department of Plastic, Reconstructive and Aesthetic Surgery, University of Health Sciences, Sisli Hamidiye Etfal Training and Research Hospital, Istanbul, Turkey
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El Mohtadi M, Whitehead K, Dempsey-Hibbert N, Belboul A, Ashworth J. Estrogen deficiency - a central paradigm in age-related impaired healing? EXCLI JOURNAL 2021; 20:99-116. [PMID: 33510594 PMCID: PMC7838826 DOI: 10.17179/excli2020-3210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 01/04/2021] [Indexed: 11/10/2022]
Abstract
Wound healing is a dynamic biological process achieved through four sequential, overlapping phases; hemostasis, inflammation, tissue proliferation and remodeling. For effective wound healing, all four phases must occur in the appropriate order and time frame. It is well accepted that the wound healing process becomes disrupted in the elderly, increasing the propensity of non-healing wound states that can lead to substantial patient morbidity and an enormous financial burden on healthcare systems. Estrogen deprivation in the elderly has been identified as the key driver of age-related delayed wound healing in both genders, with topical and systemic estrogen replacement reversing the detrimental effects of aging on wound repair. Evidence suggests estrogen deprivation may contribute to the development of chronic wound healing states in the elderly but research in this area is somewhat limited, warranting further investigations. Moreover, although the beneficial effects of estrogen on cutaneous healing have been widely explored, the development of estrogen-based treatments to enhance wound repair in the elderly have yet to be widely exploited. This review explores the critical role of estrogen in reversing age-related impaired healing and evaluates the prospect of developing more focused novel therapeutic strategies that enhance wound repair in the elderly via activation of specific estrogen signaling pathways in regenerating tissues, whilst leaving non-target tissues largely unaffected.
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Affiliation(s)
- Mohamed El Mohtadi
- Department of Biology, Edge Hill University, Ormskirk, Lancashire, L39 4QP, UK
| | - Kathryn Whitehead
- Centre for Bioscience, Manchester Metropolitan University, Chester Street, Manchester, M1 5GD, UK
| | - Nina Dempsey-Hibbert
- Centre for Bioscience, Manchester Metropolitan University, Chester Street, Manchester, M1 5GD, UK
| | - Amina Belboul
- Centre for Bioscience, Manchester Metropolitan University, Chester Street, Manchester, M1 5GD, UK
| | - Jason Ashworth
- Centre for Bioscience, Manchester Metropolitan University, Chester Street, Manchester, M1 5GD, UK
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Lu HS, Schmidt AM, Hegele RA, Mackman N, Rader DJ, Weber C, Daugherty A. Reporting Sex and Sex Differences in Preclinical Studies. Arterioscler Thromb Vasc Biol 2019; 38:e171-e184. [PMID: 30354222 DOI: 10.1161/atvbaha.118.311717] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Hong S Lu
- From the Department of Physiology, Saha Cardiovascular Research Center, University of Kentucky, Lexington (H.S.L., A.D.)
| | - Ann Marie Schmidt
- Diabetes Research Program, Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, New York University Langone Medical Center, New York, NY (A.M.S.)
| | - Robert A Hegele
- Department of Medicine and Robarts Research Institute, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada (R.A.H.)
| | - Nigel Mackman
- Department of Medicine, University of North Carolina at Chapel Hill (N.M.)
| | - Daniel J Rader
- Department of Medicine (D.J.R.), Perelman School of Medicine, University of Pennsylvania, Philadelphia.,Department of Genetics (D.J.R.), Perelman School of Medicine, University of Pennsylvania, Philadelphia
| | - Christian Weber
- Department of Medicine, Institute for Cardiovascular Prevention, Ludwig-Maximilians-Universität, Munich, Germany (C.W.).,German Centre for Cardiovascular Research, Partner Site Munich Heart Alliance, Munich, Germany (C.W.)
| | - Alan Daugherty
- From the Department of Physiology, Saha Cardiovascular Research Center, University of Kentucky, Lexington (H.S.L., A.D.)
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Wu CH, Mohammadmoradi S, Chen JZ, Sawada H, Daugherty A, Lu HS. Renin-Angiotensin System and Cardiovascular Functions. Arterioscler Thromb Vasc Biol 2018; 38:e108-e116. [PMID: 29950386 PMCID: PMC6039412 DOI: 10.1161/atvbaha.118.311282] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Chia-Hua Wu
- From the Saha Cardiovascular Research Center (C.-H.W., S.M., J.Z.C., H.S., A.D., H.S.L.)
- Department of Pharmacology and Nutritional Sciences (C.-H.W., S.M., A.D., H.S.L.)
| | - Shayan Mohammadmoradi
- From the Saha Cardiovascular Research Center (C.-H.W., S.M., J.Z.C., H.S., A.D., H.S.L.)
- Department of Pharmacology and Nutritional Sciences (C.-H.W., S.M., A.D., H.S.L.)
| | - Jeff Z Chen
- From the Saha Cardiovascular Research Center (C.-H.W., S.M., J.Z.C., H.S., A.D., H.S.L.)
- Department of Physiology (J.Z.C., A.D., H.S.L.), University of Kentucky, Lexington
| | - Hisashi Sawada
- From the Saha Cardiovascular Research Center (C.-H.W., S.M., J.Z.C., H.S., A.D., H.S.L.)
| | - Alan Daugherty
- From the Saha Cardiovascular Research Center (C.-H.W., S.M., J.Z.C., H.S., A.D., H.S.L.)
- Department of Pharmacology and Nutritional Sciences (C.-H.W., S.M., A.D., H.S.L.)
- Department of Physiology (J.Z.C., A.D., H.S.L.), University of Kentucky, Lexington
| | - Hong S Lu
- From the Saha Cardiovascular Research Center (C.-H.W., S.M., J.Z.C., H.S., A.D., H.S.L.)
- Department of Pharmacology and Nutritional Sciences (C.-H.W., S.M., A.D., H.S.L.)
- Department of Physiology (J.Z.C., A.D., H.S.L.), University of Kentucky, Lexington
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Jullienne A, Salehi A, Affeldt B, Baghchechi M, Haddad E, Avitua A, Walsworth M, Enjalric I, Hamer M, Bhakta S, Tang J, Zhang JH, Pearce WJ, Obenaus A. Male and Female Mice Exhibit Divergent Responses of the Cortical Vasculature to Traumatic Brain Injury. J Neurotrauma 2018; 35:1646-1658. [PMID: 29648973 DOI: 10.1089/neu.2017.5547] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
We previously reported that traumatic brain injuries (TBI) alter the cerebrovasculature near the injury site in rats, followed by revascularization over a 2-week period. Here, we tested our hypothesis that male and female adult mice have differential cerebrovascular responses following a moderate controlled cortical impact (CCI). Using in vivo magnetic resonance imaging (MRI), a new technique called vessel painting, and immunohistochemistry, we found no differences between males and females in lesion volume, neurodegeneration, blood-brain barrier (BBB) alteration, and microglia activation. However, females exhibited more astrocytic hypertrophy and heme-oxygenase-1 (HO-1) induction at 1 day post-injury (dpi), whereas males presented with increased endothelial activation and expression of β-catenin, shown to be involved in angiogenesis. At 7 dpi, we observed an increase in the number of vessels and an enhancement in vessel complexity in the injured cortex of males compared with females. Cerebrovasculature recovers differently after CCI, suggesting biological sex should be considered when designing new therapeutic agents.
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Affiliation(s)
- Amandine Jullienne
- 1 Department of Basic Sciences, University of California Irvine , Irvine, California
| | - Arjang Salehi
- 1 Department of Basic Sciences, University of California Irvine , Irvine, California
| | - Bethann Affeldt
- 1 Department of Basic Sciences, University of California Irvine , Irvine, California
| | - Mohsen Baghchechi
- 1 Department of Basic Sciences, University of California Irvine , Irvine, California
| | - Elizabeth Haddad
- 1 Department of Basic Sciences, University of California Irvine , Irvine, California
| | - Angela Avitua
- 1 Department of Basic Sciences, University of California Irvine , Irvine, California
| | - Mark Walsworth
- 1 Department of Basic Sciences, University of California Irvine , Irvine, California
| | - Isabelle Enjalric
- 1 Department of Basic Sciences, University of California Irvine , Irvine, California
| | - Mary Hamer
- 1 Department of Basic Sciences, University of California Irvine , Irvine, California
| | - Sonali Bhakta
- 1 Department of Basic Sciences, University of California Irvine , Irvine, California
| | - Jiping Tang
- 2 Department of Physiology and Pharmacology, University of California Irvine , Irvine, California
| | - John H Zhang
- 2 Department of Physiology and Pharmacology, University of California Irvine , Irvine, California.,3 Department of Anesthesiology, University of California Irvine , Irvine, California.,4 Department of Neurosurgery, University of California Irvine , Irvine, California
| | - William J Pearce
- 2 Department of Physiology and Pharmacology, University of California Irvine , Irvine, California.,5 Center for Perinatal Biology, Loma Linda University , Loma Linda, California
| | - André Obenaus
- 1 Department of Basic Sciences, University of California Irvine , Irvine, California.,6 Department of Pediatrics, University of California Irvine , Irvine, California
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Estrogen Effects on Wound Healing. Int J Mol Sci 2017; 18:ijms18112325. [PMID: 29099810 PMCID: PMC5713294 DOI: 10.3390/ijms18112325] [Citation(s) in RCA: 106] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 10/30/2017] [Accepted: 11/02/2017] [Indexed: 02/07/2023] Open
Abstract
Wound healing is a physiological process, involving three successive and overlapping phases—hemostasis/inflammation, proliferation, and remodeling—to maintain the integrity of skin after trauma, either by accident or by procedure. Any disruption or unbalanced distribution of these processes might result in abnormal wound healing. Many molecular and clinical data support the effects of estrogen on normal skin homeostasis and wound healing. Estrogen deficiency, for example in postmenopausal women, is detrimental to wound healing processes, notably inflammation and re-granulation, while exogenous estrogen treatment may reverse these effects. Understanding the role of estrogen on skin might provide further opportunities to develop estrogen-related therapy for assistance in wound healing.
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