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Okur S, Yanmaz LE, Bolat İ, Golgeli A, Tarık OÖ, Okur DT, Kiliçlioglu M, Baykal B. Application of infrared thermography in assessing presence and severity of intra-abdominal adhesions. J Therm Biol 2024; 123:103920. [PMID: 39003832 DOI: 10.1016/j.jtherbio.2024.103920] [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: 03/13/2024] [Revised: 06/14/2024] [Accepted: 07/05/2024] [Indexed: 07/16/2024]
Abstract
Abdominal surgeries can sometimes lead to the formation of intra-abdominal adhesions, which may result in severe complications. Despite the availability of several diagnostic procedures, thermography has not been used for identifying intra-abdominal adhesions. Therefore, the objective of the current study was to assess abdominal temperature changes in rats with experimentally induced intra-abdominal adhesions. A total of 48 female rats were randomly divided into 4 groups (n = 12 each): Control (Group C), Laparotomy (Group Lap), Peritoneal Button Creation (Group PBC), and Uterus horn (Group UH). Skin temperature of abdominal region was measured before the procedure (T0) and daily thereafter until day 7 (T7). On day 7, all rats were euthanized for macroscopic evaluation, adhesion scoring, histopathological, immunohistochemical and immunofluorescence analyses. Significant differences were observed between Group C and Group PBC and Group UH at T5, while at T6 and T7, there was a difference between Group C and Group Lap, Group PBC, and Group UH in abdominal skin temperature (P < 0.05). The highest level of inflammation, angiogenesis, IL-1β, and VEGF were observed in Group PBC followed by Group UH, Group Lap, and Group C (P < 0.05). There was a significant difference in adhesion formation between Group C and Groups Lap, PBC, and UH (P = 0.02). However, no significant difference was found in adhesion scores between Groups Lap, PBC, and UH (P = 0.25). A significant difference was found in mean abdominal skin temperature between adhesion scores 4 and 0, 1, and 2 (P < 0.05), while no significant difference was observed between adhesion scores 3 and 4 (P > 0.05). In conclusion, the current study suggests that the presence of intra-abdominal adhesions is associated with an increase in abdominal temperature, and this increase is correlates with the severity of adhesion.
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Affiliation(s)
- Sitkican Okur
- Department of Veterinary Surgery, Atatürk University, Erzurum, 25000, Turkey.
| | - Latif Emrah Yanmaz
- Department of Veterinary Surgery, Burdur Mehmet Akif Ersoy University, Burdur, 15030, Turkey
| | - İsmail Bolat
- Department of Veterinary Pathology, Atatürk University, Erzurum, 25000, Turkey
| | - Ayse Golgeli
- Department of Veterinary Surgery, Atatürk University, Erzurum, 25000, Turkey
| | - Orhun Ömer Tarık
- Department of Veterinary Surgery, Atatürk University, Erzurum, 25000, Turkey
| | - Damla Tugce Okur
- Department of Veterinary Obstetrics and Gynecology, Atatürk University, Erzurum, 25000, Turkey
| | - Metin Kiliçlioglu
- Department of Veterinary Pathology, Atatürk University, Erzurum, 25000, Turkey
| | - Büsra Baykal
- Department of Veterinary Surgery, Atatürk University, Erzurum, 25000, Turkey
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Carroll JD. Photobiomodulation Literature Watch June 2023. Photobiomodul Photomed Laser Surg 2024; 42:246-248. [PMID: 38386801 DOI: 10.1089/photob.2024.0010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2024] Open
Affiliation(s)
- James D Carroll
- THOR Photomedicine Ltd., Anglo Office Park, Amersham, Bucks, United Kingdom
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Carroll JD. Photobiomodulation Literature Watch May 2023. Photobiomodul Photomed Laser Surg 2024; 42:96-98. [PMID: 38252492 DOI: 10.1089/photob.2023.0171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2024] Open
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Polat B, Okur DT, Çolak A, Okur S, Özkaraca M, Yilmaz K. Comparison of three different dosages of low-level laser therapy on expression of cell proliferation and inflammatory markers following ovariohysterectomy in rats. Cutan Ocul Toxicol 2023; 42:273-282. [PMID: 37624142 DOI: 10.1080/15569527.2023.2252075] [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: 05/10/2023] [Revised: 08/16/2023] [Accepted: 08/21/2023] [Indexed: 08/26/2023]
Abstract
The objective of the current study was to evaluate Low-level laser therapy (LLLT) on the healing of incisional wounds following ovariohysterectomy in rats, by means of subjective histopathological and immunohistochemical analysis. A total of 72 female Wistar rats were categorised into four treatment groups (Group I; sacrification 4 hours following only one LLLT application, Group II; sacrification 7 days following only one LLLT application, Group III; sacrification 4 hours after two LLLT applications, and Group IV; sacrification 7 days after two LLLT applications). Each group was further divided into four different doses subgroups (Group Control [C, off mode LLLT application], L1 [1 J/cm2], L3 [3 J/cm2], and L6 [6 J/cm2]), with equal representation in each subgroup. Ovariohysterectomy was employed using two 2-cm-length midline abdominal incisions in the left and right sides of line alba. The Group C was assigned to the left side incision to each rat in the study. After irradiation, the tissue was subjected to histopathological analysis to determine the extent of mononuclear cell infiltration, edoema, and epithelialization. Additionally, immunohistochemical analysis was performed to evaluate the expression of proliferating cell nuclear antigen (pCNA) and inducible nitric oxide synthase (iNOS). Group L1 and L3 significantly decreased mononuclear cell infiltration compared with Group C in all treatment groups (p < 0.05). Group L3 significantly decreased edoema compared with Group C in all groups except for treatment Group I (p < 0.05). Group L2 and L3 significantly increased epithelization in treatment Group IV (p < 0.05). Moreover, Group L2 and L3 significantly increased pCNA in all groups, while L2 and L3 significantly decreased iNOS expression in treatment Group II, III, and IV (p < 0.05). However, no statistical difference was found between subgroups of treatment Group I in iNOS expiration (p > 0.05). The results of the current examination demonstrated that LLLT can modulate mononuclear cell infiltration and edoema, and improve epithelization, as well as increase pCNA expression, whereas decrease iNOS expression during the wound healing process, therefore enhancing wound healing following ovariohysterectomy in rats.
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Affiliation(s)
- Bülent Polat
- Department of Obstetrics and Gynecology, Atatürk University, Erzurum, Turkey
- Bil-Tek, Ata Teknokent, Erzurum, TR, Turkey
| | - Damla Tuğçe Okur
- Department of Obstetrics and Gynecology, Atatürk University, Erzurum, Turkey
| | - Armağan Çolak
- Department of Obstetrics and Gynecology, Atatürk University, Erzurum, Turkey
| | - Sıtkıcan Okur
- Department of Surgery, Atatürk University, Erzurum, Turkey
| | - Mustafa Özkaraca
- Department of Pathology, Sivas Cumhuriyet University, Sivas, Turkey
| | - Kader Yilmaz
- Celal Oruç Animal Production School, Ağrı İbrahim Çeçen University, Ağrı, Turkey
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Polat B, Okur DT, Çolak A, Yilmaz K, Özkaraca M, Çomakli S. The effects of low-level laser therapy on polycystic ovarian syndrome in rats: three different dosages. Lasers Med Sci 2023; 38:177. [PMID: 37544939 DOI: 10.1007/s10103-023-03847-6] [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: 04/10/2023] [Accepted: 08/01/2023] [Indexed: 08/08/2023]
Abstract
The main objective of this in vivo study was to investigate the effect of different low-level laser therapy (LLLT) doses on polycystic ovary syndrome (PCOS). In the present experimental study, a single dosage of estradiol valerate (EV) was administered to induce PCOS in female rats. After administration of the EV for induction of PCOS, rats were divided into 5 groups (n = 8/group): C group (animals that were not exposed to any form of procedure), PC group (no treatment following EV induction), L1 group (1 J/cm2 LLLT treatment following EV induction), L2 group (2 J/cm2 LLLT treatment following EV induction), L3 group (6 J/cm2 LLLT treatment following EV induction). The results indicated that no significant difference was found in the serum levels of luteinizing hormone (LH), follicle-stimulating hormone (FSH), and progesterone (P4) between the C and L2 groups (p < 0.05). Although the serum levels of testosterone (T) were significantly higher in the C group compared with other groups (p < 0.05), the L2 group was determined to be the closest to the C group. Additionally, the LH, FSH, and T receptor level of the L2 group was closest to the C group. In conclusion, a 2 J/cm2 dosage of LLLT (L2 group) can be considered the most potentially effective treatment of PCOS in the rat. However, more studies are needed to determine the optimal dose of LLLT for the treatment of PCOS.
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Affiliation(s)
- Bülent Polat
- Department of Obstetrics and Gynecology, Faculty Veterinary Medicine, Atatürk University, Erzurum, Turkey
- BIL-TEC, TEKNOKENT, TR-25240, Erzurum, Turkey
| | - Damla Tuğçe Okur
- Department of Obstetrics and Gynecology, Faculty Veterinary Medicine, Atatürk University, Erzurum, Turkey.
| | - Armağan Çolak
- Department of Obstetrics and Gynecology, Faculty Veterinary Medicine, Atatürk University, Erzurum, Turkey
| | - Kader Yilmaz
- Celal Oruç Animal Production School, Ağrı İbrahim Çeçen University, Ağrı, Turkey
| | - Mustafa Özkaraca
- Department of Pathology, Faculty Veterinary Medicine, Sivas Cumhuriyet University, Sivas, Turkey
| | - Selim Çomakli
- Department of Pathology, Faculty Veterinary Medicine, Atatürk University, Erzurum, Turkey
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Li W, Sun J, Feng SL, Wang F, Miao MZ, Wu EY, Wallet S, Loeser R, Li C. Intra-articular delivery of AAV vectors encoding PD-L1 attenuates joint inflammation and tissue damage in a mouse model of rheumatoid arthritis. Front Immunol 2023; 14:1116084. [PMID: 36936967 PMCID: PMC10021025 DOI: 10.3389/fimmu.2023.1116084] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 02/14/2023] [Indexed: 03/06/2023] Open
Abstract
Objective Rheumatoid arthritis (RA) is the most common form of autoimmune inflammatory arthritis. Intra-articular gene delivery to block proinflammatory cytokines has been studied in pre-clinical models and human clinical trials. It has been demonstrated that the level of programmed death-ligand 1 (PD-L1) is associated with rheumatoid arthritis (RA). This study examined the therapeutic role of PD-L1 by intra-articular delivery via adeno-associated virus (AAV) vectors in the mouse collagen-induced arthritis (CIA) model. Methods Mice were intra-articularly injected with AAV5 vectors encoding human PD-L1 on day 0 and immunized with bovine type II collagen to induce CIA simultaneously. On day 49 post AAV administration, joints were collected for histo-pathological and cytokine analysis. Additionally, the systemic impacts of intra-articular injection of AAV5/PD-L1 vectors were also studied. To study the therapeutic effect of PD-L1, AAV5/PD-L1 vectors were administered into the joints of RA mice on day 21. Results After administration of AAV5/PD-L1 vectors, strong PD-L1 expression was detected in AAV transduced joints. Joints treated with PD-L1 at the time of arthritis induction exhibited significantly less swelling and improved histopathological scores when compared to untreated joints. Additionally, the infiltration of T cells and macrophages was decreased in joints of CIA mice that received AAV5/PD-L1 vectors (P<0.05). The levels of pro-inflammatory cytokines, including IL-1, IL-6, IL-17 and TNFα, were lower in AAV5/PD-L1 treated than untreated joints (P<0.05). Furthermore, the administration of AAV5/PD-L1 vectors into the joints of CIA mice did not impact serum cytokine levels and the antibody titers to type II collagen. Biodistribution of AAV vectors after intra-articular injection showed undetectable AAV genomes in other tissues except for a low level in the liver. Similar to the results of AAV5/PD-L1 vector administration on day 0, decreased joint swelling and lower histopathological damage were observed in joints treated with AAV5/PD-L1 vectors on day 21. Conclusion The results from this study demonstrate that local AAV mediated PD-L1 gene delivery into the joints is able to prevent the development and block the progression of arthritis in CIA mice without impacting systemic immune responses. This study provides a novel strategy to effectively treat inflammatory joint diseases using local AAV gene therapy by interference with immune checkpoint pathways.
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Affiliation(s)
- Wenjun Li
- Gene Therapy Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
- Division of Oral and Craniofacial Biomedicine, University of North Carolina Adams School of Dentistry, Chapel Hill, NC, United States
| | - Junjiang Sun
- Division of Chemical Biology and Medicinal Chemistry, School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Susi Liu Feng
- Gene Therapy Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Feng Wang
- Gene Therapy Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Michael Z Miao
- Division of Oral and Craniofacial Biomedicine, University of North Carolina Adams School of Dentistry, Chapel Hill, NC, United States
- Thurston Arthritis Research Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Eveline Y Wu
- Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Shannon Wallet
- Department of oral biology, University of Florida, Gainesville, FL, United States
| | - Richard Loeser
- Thurston Arthritis Research Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
- Division of Rheumatology, Allergy, and Immunology, University of North Carolina, Chapel Hill, NC, United States
| | - Chengwen Li
- Gene Therapy Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
- Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
- Division of Rheumatology, Allergy, and Immunology, University of North Carolina, Chapel Hill, NC, United States
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Turgut F, Yanmaz LE. Investigating effects of locally applied boric acid on fracture healing with and without low-level laser therapy. Lasers Med Sci 2022; 38:11. [PMID: 36539645 DOI: 10.1007/s10103-022-03695-w] [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: 10/14/2022] [Accepted: 11/29/2022] [Indexed: 12/24/2022]
Abstract
This study aimed to investigate the effects on fracture healing of locally applied boric acid (BA) with and without low-level laser therapy (LLLT). A unicortical femoral defect was surgically created on the anterolateral surface of proximal femur of each subject. The subjects, totaling 56 Wistar albino rats, were randomly allocated into four groups (n = 14 each): control, LLLT (λ = 905 μm, 10,000 Hz, 25 mW, and peak power 25 W), BA (40 mg/kg), and BA + LLLT groups. On the 30th day, the highest radiological score was recorded for the BA + LLLT group (3.63 [2-4]), followed by the BA (3.38 [2.75-3.75]), control (3 [2-3.25]), and LLLT (2.5 [1.25-3]) groups. On days 15 and 30 post-surgery, malondialdehyde levels were significantly lower among the BA + LLLT group compared to the control group (p < 0.001). On day 30, superoxide dismutase, catalase, and alkaline phosphatase levels were highest in the BA + LLLT group compared to the control group (p < 0.001). When the histopathological, immunofluorescence, and immunohistochemical findings on the 15th and 30th days were compared with the control group, a statistically significant difference was found for the BA and BA + LLLT groups (p ˂ 0.05). This study suggests that locally applied BA with LLLT may accelerate fracture healing.
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Affiliation(s)
- Ferda Turgut
- Department of Surgery, Faculty of Veterinary Medicine, Ataturk University, Erzurum, Turkey.
| | - Latif Emrah Yanmaz
- Department of Surgery, Faculty of Veterinary Medicine, Burdur Mehmet Akif Ersoy University, Burdur, Turkey
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