Histologia da associação de membranas biológicas de origem bovina implantadas no subcutâneo de ratos

Yamatogi, Ricardo Seiti; Rahal, Sheila Canevese; Granjeiro, José Mauro; Taga, Rumio; Cestari, Tânia Mary; Lima, Alfredo Feio da Maia

doi:10.1590/s0103-84782005000400014

Cited by 4 publications

(8 citation statements)

References 18 publications

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“…When tissues are injured, its synthesis is required for repairs in defects, anatomical structure and functions. It is also one of the most common materials used for tissue repair because of its biological properties and ability to promote wound healing and an important component of the extracellular matrix 18 . Collagenase is an enzyme that breaks the peptide bonds of collagen.…”

Section: Introductionmentioning

confidence: 99%

Bacterial Cellulose/Collagen Hydrogel for Wound Healing

Moraes¹,

et al. 2016

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This study compares a wound dressing based on bacterial cellulose/collagen (BC/COL) hydrogel in rat dorsum with commercial collagenase ointment and untreated wound. The hydrogel was characterized by Scanning Electron Microscopy (SEM), Thermogravimetric Analysis (TGA), Fourier transformed -Infrared spectroscopy (FT-IR) and X-ray diffraction (XRD). According to the In vivo test and macroscopic evaluation, BC/COL hydrogel showed a better repair of wounds and promoted statistically significant differences of tissue repair between treatments on the 7th day after surgery. Better quality, quantity and orientation evaluation of collagen fibers (p=0.0001) were observed in the BC/COL hydrogel and collagenase ointment groups in relation to the control group. The BC/COL hydrogel promoted better wound healing than collagenase and the control group, therefore, it can be considered a potential wound dressing for skin regeneration.

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Section: Introductionmentioning

confidence: 99%

Bacterial Cellulose/Collagen Hydrogel for Wound Healing

Moraes¹,

et al. 2016

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“…Synthetic membranes include polytetrafluoroethylene (PTFE), resistant to degradation, bioinert, chemically stable, porous and flexible, and poly(lactic acid-co-glycolic acid) (PLGA), which has controlled degradation [11][12][13] . Natural membranes are usually of collagen, a biomimetic composition to favor the bone repair process [14][15][16][17] , with excellent biocompatibility, variable biodegradability 7,18 and extraction sources, such as tendon, cortical bone or bovine pericardium 11,19,20 or porcine submucosa 21,22 . Resorption time of polymeric membranes range from 4 weeks to 6 months, occuring gradually so that bone formation is possible 8,23 .…”

Section: Introductionmentioning

confidence: 99%

Efficiency analysis of commercial polymeric membranes for bone regeneration in rat cranial defects

et al. 2023

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To evaluate the in vivo efficiency of commercial polymeric membranes for guided bone regeneration. Methods: Rat calvarial critical size defects was treated with LuminaCoat (LC), Surgitime PTFE (SP), GenDerm (GD), Pratix (PR), Techgraft (TG) or control (C-) and histomorphometric analysis determined the percentage of new bone, connective tissue and biomaterial at 1 or 3 months. Statistical analysis used ANOVA with Tukey's post-test for means at same experimental time and the paired Student's t test between the two periods, considering p < 0.05. Results: New bone at 1 month was higher for SP, TG and C-, at 3 months there were no differences, and between 1 and 3 months PR had greater increase growthing. Connective tissue at 1 month was higher for C-, at 3 months for PR, TG and C-, and between 1 and 3 months C-had sharp decline. Biomaterial at 1 month was higher for LC, in 3 months for SP and TG, and between 1 and 3 months, LC, GD and TG had more decreasing mean. Conclusion: SP had greater osteopromotive capacity and limitation of connective ingrowth, but did not exhibit degradation. PR and TG had favorable osteopromotion, LC less connective tissue and GD more accelerated biodegradation.

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“…More recently, biological materials have been used for the same purpose. Among these, swine small bowel submucosa [ 7 , 8 ], swine urinary bladder submucosa [ 9 ], bovine peritoneum [ 10 ], microbial cellulose membrane [ 11 ], and bovine pericardium [ 4 , 12 ] stand out. Collagen-based animal tissue has been more frequently used, associated to several conservation techniques to preserve its viability and reduce antigenicity [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

Surgical treatment of traumatic eventration with polyester button and polypropylene mesh to strengthen the suture technique in equine

et al. 2016

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BackgroundDefects in the abdominal wall of horses have high relapse rate. This is mainly in lateral eventrations and hernias caused by trauma from kicks of other horses or installation structures. The eventration region normally becomes swollen and there may be complications due to intestinal loop incarceration. The surgical treatment, consisting of reconstruction of the abdominal wall, frequently require biological or synthetic materials for the reinforcement of the suture line and tension support. Therefore, several studies have reported new materials for the repair of the abdominal wall, with the aim of improving the integration among adjacent tissues and reducing risks and complications such as rejection and infection. This report describes for the first time the use of a regular polypropylene mesh reinforced with polyester buttons for the herniorrhaphy.Case presentationA male, three-year-old, Appaloosa with 500 Kg presented to our hospital with a 10 days history of an increased volume on the left ventro-lateral region of the abdomen. During the physical examination, a deventration following traumatic rupture of the abdominal wall was diagnosed via ultrasonography. Then, the equine was anesthetized and moved to surgery for correction of the eventration which was performed according to conventional technique described in literature. Two days later, an eventration relapse was observed and confirmed via ultrasonography. After that, a second surgical intervention was performed using polyester buttons and polypropylene mesh. After the second surgical procedure, no complications related to eventration were observed either intra or postoperatively. After that, a recheck was performed thirty days later where satisfactory wound healing and total recovery were observed.ConclusionThe use of polypropylene mesh reinforced with polyester buttons is an effective technique for the repair of traumatic eventration in horses. This technique provides effective reinforcement against the abdominal tension and was a good option for reconstruction of lacerated muscles in cases of equine post-traumatic eventration, including relapsing cases.

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Histologia da associação de membranas biológicas de origem bovina implantadas no subcutâneo de ratos

Cited by 4 publications

References 18 publications

Bacterial Cellulose/Collagen Hydrogel for Wound Healing

Bacterial Cellulose/Collagen Hydrogel for Wound Healing

Efficiency analysis of commercial polymeric membranes for bone regeneration in rat cranial defects

Surgical treatment of traumatic eventration with polyester button and polypropylene mesh to strengthen the suture technique in equine

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