6 results on '"V, Capuozzo"'
Search Results
2. [Tissue engineering of parathyroid gland]
- Author
-
F, Iovino, G, Armano, P P, Auriemma, R, Sergio, G, De Sena, V, Capuozzo, F, Rosso, G, Marino, F, Papale, A, Grimaldi, and A, Barbarisi
- Subjects
Parathyroid Glands ,Tissue Engineering ,Parathyroid Hormone ,Cell Adhesion ,Humans ,Collagen ,Cells, Cultured ,Extracellular Matrix - Abstract
The postoperative hypoparathyroidism is a not rare complication after total thyroidectomy and/or total parathyroidectomy. Attempts to transplant parathyroid tissue began in 1975 with the work of Wells, but still today results are disappointing. However, with the development of tissue engineering techniques, some experimental approaches to build artificial parathyroid are been made. Bioengineered device, actively secreting PTH, for transplant in patients with iatrogenic hypoparathyroidism is unavailable.Parathyroid cells were obtained from three chronic uremic patients in hemodialysis, operated for secondary hyperparathyroidism. Cell cultures in RPMI medium were subsequently seeded on collagen scaffold (three-dimensional matrix with slow biodegradation). Collagen is the major component of the extracellular matrix and thus is a good substrate for cell adhesion and growth. Culture media, with a low calcium concentration, were optimised to physiologically stimulate parathyroid hormone secretion. Cell cultures were morphologically observed in optical and electron (ESEM) microscopy and metabolically assayed by MTT method until the tenth week. Besides, concentration of parathyroid hormone in the culture medium has been measured for several weeks.After 24 hours of culture in RPMI, cells extracted from human parathyroid glands were nearly all adherent and organised in clusters to resemble the glandular organization. The cellular population consisted predominantly of parathyroid cells (90-95%). On collagen scaffolds, cells maintains an epithelial-like morphology also after 10 weeks, colonizing the scaffold surface and keeping a good proliferative rate with a discrete production of parathyroid hormone.The use of parathyroid cells extracted from patients with secondary hyperparathyroidism was certainly an appropriate choice that enabled us to achieve these results, that albeit partial bode well for the experimental in vivo animal model. The bioengineered scaffolds when implanted in the subcutaneous can avoid the dispersion of parathyroid cells, assuring also the possibility to easily remove the implant in case of complications. Our research was aimed primarily to the optimisation of PTH secreting human parathyroid cells cultures and then to the in vitro engineering of human parathyroid glands in three-dimensional collagen scaffolds.
- Published
- 2010
3. Our Experience With 200 Cases of Inguinal Hernia Repair Using the Dynamic Self-Adjusting Prosthesis: A Case Series and Literature Review.
- Author
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Fernicola A, Alvigi A, Angelone G, Scotti L, Salvucci A, Finelli R, Capuozzo V, Aprea G, Santangelo M, and Scognamiglio G
- Abstract
Introduction Inguinal hernioplasty (IH) is one of the most frequently performed surgical procedures globally. Today, a variety of surgical techniques and prosthesis types are available for this procedure. Methods At our center, we performed 200 inguinal hernioplasties using the dynamic self-adjusting prosthesis (protesi autoregolantesi dinamica , PAD) from May 1, 2022, to May 31, 2023. Our objective was to retrospectively analyze the outcomes and compare them with the current scientific literature on this surgical technique. Results Our results align with those reported by other authors using the same surgical technique. With the PAD technique, we assessed the type and frequency of adverse events up to 12 months following IH. All patients were male, with an average BMI of 26.6. Among the 200 hernias, 99 were right-sided, 101 were left-sided, 63 were direct, and 137 were indirect. The average length of hospitalization was one day. The most common postoperative complication was hematoma near the surgical site, but no prosthesis displacement was observed. In 71% of patients, analgesics were discontinued within 24 hours. The outcomes of our study are comparable to those reported by the inventor of this surgical technique. Conclusion The procedure has demonstrated safety and effectiveness and could serve as a viable alternative to traditional IH techniques., Competing Interests: Human subjects: Consent was obtained or waived by all participants in this study. Animal subjects: All authors have confirmed that this study did not involve animal subjects or tissue. Conflicts of interest: In compliance with the ICMJE uniform disclosure form, all authors declare the following: Payment/services info: All authors have declared that no financial support was received from any organization for the submitted work. Financial relationships: All authors have declared that they have no financial relationships at present or within the previous three years with any organizations that might have an interest in the submitted work. Other relationships: All authors have declared that there are no other relationships or activities that could appear to have influenced the submitted work., (Copyright © 2024, Fernicola et al.)
- Published
- 2024
- Full Text
- View/download PDF
4. Micronutrient Deficiencies in Patients Candidate for Bariatric Surgery: A Prospective, Preoperative Trial of Screening, Diagnosis, and Treatment.
- Author
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Schiavo L, Scalera G, Pilone V, De Sena G, Capuozzo V, and Barbarisi A
- Abstract
Bariatric surgery candidates often show preoperative micronutrient deficiency. Although it is documented that a comprehensive micronutrient assessment should be conducted preoperatively to correct the deficiencies before surgery, no previous studies have been effective in correcting deficiencies in sufficient time prior to surgery. Our aim was to identify micronutrient deficiencies preoperatively and correct them before surgery.
- Published
- 2015
- Full Text
- View/download PDF
5. Therapy with autologous adipose-derived regenerative cells for the care of chronic ulcer of lower limbs in patients with peripheral arterial disease.
- Author
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Marino G, Moraci M, Armenia E, Orabona C, Sergio R, De Sena G, Capuozzo V, Barbarisi M, Rosso F, Giordano G, Iovino F, and Barbarisi A
- Subjects
- Aged, Ankle Brachial Index, Chronic Disease, Combined Modality Therapy, Female, Flow Cytometry, Graft Survival, Humans, Hyperbaric Oxygenation, Leg Ulcer surgery, Male, Middle Aged, Regeneration, Transplantation, Autologous, Treatment Outcome, Adipose Tissue cytology, Leg Ulcer etiology, Leg Ulcer therapy, Peripheral Arterial Disease complications, Stem Cell Transplantation methods
- Abstract
Background: An ulcer is a trophic lesion with loss of tissue that often has a multifactorial genesis. It typically diverges from the physiologic processes of regeneration because it rarely tends to heal spontaneously. In this study, we used purified adipose-derived stem and regenerative cells (ADRCs) extracted from autologous fat, for the care of chronic ulcers of the lower limbs of arteriopathic patients. The primary objective of this study was complete re-epithelization of chronic ulcers; the secondary objective was a decrease in diameter and depth., Methods: From January 2010 to January 2012, 20 patients with peripheral arterial disease, with an ankle-brachial index between 0.30-0.40, in the age range 60-70 y (14 men and six women), with chronic ulcers of the lower limb, were involved in the study. Only 10 arteriopathic patients (seven men and three women) with chronic ulcers of the lower limb were surgically treated. Using the Celution system, we isolated a solution of ADRCs in about 150 min. The isolated cells were injected through a 10-mL syringe into the edges of the ulcer, taking care to spread it in all directions. Using a small amount of Celution extract, we performed cell characterization by flow cytometry analysis and cell viability assay., Results: We monitored patients treated with ADRC or untreated at 4, 10, 20, 60, and 90 d. In all cases treated with ADRC, we found a reduction in both diameter and depth of the ulcer, which led to a decrease in pain associated with the ulcer process. In six of 10 cases there was complete healing of the ulcer. Characterization of the cells by FACS clearly showed that the ADRC cells contained adipose-derived stem cells. Viability assays demonstrated that partial or total closure of the ulcer was attributable exclusively to ADRC cells present in the Celution extract, and not to growth factors extracted during the process of purification of the Celution and injected together with the cells., Conclusions: For the first time, the Celution method has been applied for the care of chronic ulcers in the lower extremity of patients with peripheral arterial disease. Our results demonstrate that the technique is feasible for autologous cell application and is not associated with adverse events. Moreover, the transplantation of autologous stem cells extracted with Celution may represent a valuable method for the treatment of chronic ulcers in lower limbs of arteriopathic patients., (Copyright © 2013. Published by Elsevier Inc.)
- Published
- 2013
- Full Text
- View/download PDF
6. [Tissue engineering of parathyroid gland].
- Author
-
Iovino F, Armano G, Auriemma PP, Sergio R, De Sena G, Capuozzo V, Rosso F, Marino G, Papale F, Grimaldi A, and Barbarisi A
- Subjects
- Cell Adhesion, Cells, Cultured, Extracellular Matrix, Humans, Parathyroid Glands metabolism, Parathyroid Hormone metabolism, Collagen, Parathyroid Glands cytology, Tissue Engineering methods
- Abstract
Background: The postoperative hypoparathyroidism is a not rare complication after total thyroidectomy and/or total parathyroidectomy. Attempts to transplant parathyroid tissue began in 1975 with the work of Wells, but still today results are disappointing. However, with the development of tissue engineering techniques, some experimental approaches to build artificial parathyroid are been made. Bioengineered device, actively secreting PTH, for transplant in patients with iatrogenic hypoparathyroidism is unavailable., Patients and Methods: Parathyroid cells were obtained from three chronic uremic patients in hemodialysis, operated for secondary hyperparathyroidism. Cell cultures in RPMI medium were subsequently seeded on collagen scaffold (three-dimensional matrix with slow biodegradation). Collagen is the major component of the extracellular matrix and thus is a good substrate for cell adhesion and growth. Culture media, with a low calcium concentration, were optimised to physiologically stimulate parathyroid hormone secretion. Cell cultures were morphologically observed in optical and electron (ESEM) microscopy and metabolically assayed by MTT method until the tenth week. Besides, concentration of parathyroid hormone in the culture medium has been measured for several weeks., Results: After 24 hours of culture in RPMI, cells extracted from human parathyroid glands were nearly all adherent and organised in clusters to resemble the glandular organization. The cellular population consisted predominantly of parathyroid cells (90-95%). On collagen scaffolds, cells maintains an epithelial-like morphology also after 10 weeks, colonizing the scaffold surface and keeping a good proliferative rate with a discrete production of parathyroid hormone., Conclusion: The use of parathyroid cells extracted from patients with secondary hyperparathyroidism was certainly an appropriate choice that enabled us to achieve these results, that albeit partial bode well for the experimental in vivo animal model. The bioengineered scaffolds when implanted in the subcutaneous can avoid the dispersion of parathyroid cells, assuring also the possibility to easily remove the implant in case of complications. Our research was aimed primarily to the optimisation of PTH secreting human parathyroid cells cultures and then to the in vitro engineering of human parathyroid glands in three-dimensional collagen scaffolds.
- Published
- 2010
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