Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 17 de 17
Filter
1.
Rev. cuba. med ; 61(4)dic. 2022.
Article in Spanish | LILACS-Express | LILACS | ID: biblio-1441703

ABSTRACT

Introducción: La aplicación del lisado plaquetario alogénico en el tratamiento de la fisura anal crónica es uno de los temas más novedosos y excitantes dentro de las ciencias biomédicas hoy día. Objetivo: Exponer en forma resumida los avances y perspectivas de empleo del lisado plaquetario alogénico en la fisura anal. Métodos: La estrategia de búsqueda abarcó información en diferentes bases de datos como internet y en el buscador google académico, se utilizaron 42 bibliografías seleccionadas para realizar la revisión, 35 publicadas en los últimos cinco años como artículos originales de revisión, monografías y otros documentos científicos especializados en el tema. A partir de la búsqueda se elaboró el presente artículo. Desarrollo: Se hace alusión a la conceptualización de la enfermedad y los pilares terapéuticos, se sustenta la utilización del lisado plaquetario alogénico; los logros alcanzados con su aplicación en el Hospital General Docente "Comandante Pinaresˮ del municipio San Cristóbal en la provincia Artemisa en la especialidad; así como a las potencialidades de tan promisorio campo en el presente siglo. Conclusiones: El Lisado plaquetario alogénico en el tratamiento de la fisura anal crónica constituyó una nueva modalidad de tratamiento de la enfermedad.


Introduction: The application of allogeneic platelet lysate in the treatment of chronic anal fissure is one of the most novel and exciting topics within biomedical sciences today. Objective: To summarize the advances and perspectives of the use of allogeneic platelet lysate in anal fissure. Methods: The search strategy included information in different databases such as the internet and the academic google search engine, 42 bibliographies selected for the review were used, 35 published in the last five years as original review articles, monographs and other scientific documents specialized in the subject. The present article was prepared on the basis of the search. Development: Allusion is made to the conceptualization of the disease and the therapeutic pillars, the use of allogeneic platelet lysate is sustained; the achievements reached with its application in the General Teaching Hospital "Comandante Pinaresˮ of San Cristóbal municipality in Artemisa province in the specialty; as well as to the potential of such promising field in the present century. Conclusions: Allogeneic platelet lysate in the treatment of chronic anal fissure constituted a new modality of treatment of the disease.

2.
Article in Spanish | LILACS, CUMED | ID: biblio-1441591

ABSTRACT

Introducción: En los últimos años se ha producido un extraordinario impulso de la medicina regenerativa. El uso de las plaquetas con este fin, se ha empleado en diferentes especialidades médicas. El lisado plaquetario es una de las alternativas al tratamiento utilizadas en la necrolisis tóxica epidérmica, urgencia dermatológica que alcanza una mortalidad de hasta el 70 por ciento en ocasiones. Objetivo: Describir el uso del lisado de plaquetas como terapia regenerativa en el tratamiento de la necrolisis tóxica epidérmica. Presentación de caso: Paciente de 53 años con antecedentes patológicos de hipertensión arterial, diabetes mellitus, mieloma múltiple e insuficiencia renal crónica, que ingresó con diagnóstico de neumonía adquirida en la comunidad e insuficiencia renal crónica agudizada, para lo que llevó múltiples tratamientos. Comenzó con lesiones en piel eritematosas, no pruriginosas y después ampollares que se desbridan con facilidad, y que están diseminadas por todo el cuerpo con grandes áreas de piel denudada con una mortalidad de más del 90 por ciento. Se diagnosticó una necrolisis tóxica epidérmica, se iniciaron las medidas habituales de tratamiento y se utilizó de forma tópica el lisado plaquetario alogénico. Conclusiones: La aplicación del lisado plaquetario tuvo una respuesta favorable, se observó reepitelización cutánea y mejoría de las lesiones en la necrolisis tóxica epidérmica(AU)


Introduction: In recent years there has been an extraordinary impulse of regenerative medicine, the use of platelets for this purpose has been used in different medical specialties. The most feared of the dermatological complications is toxic epidermal necrolysis, of which up to 4 cases per million inhabitants occur annually, with a mortality that sometimes reaches up to 70 percent Objective: To describe the use of platelet lysate as regenerative therapy in the treatment of epidermal toxic necrolysis. Case presentation: We present a case of a 53-year-old patient with a pathological history of arterial hypertension, diabetes mellitus, multiple myeloma and chronic renal insufficiency, who was admitted with a diagnosis of community acquired pneumonia and acute chronic renal insufficiency, for which multiple treatments. She began with erythematous, non-pruritic, and then bullous skin lesions that are easily debrided into large areas of denuded skin, scattered throughout the body. A toxic epidermal necrolysis was diagnosed, the usual treatment measures were started and the allogeneic platelet lysate was used topically. Conclusions: A favorable response was observed, with cutaneous re-epithelialization of the skin, although the patient's underlying disease and its comorbidities died(AU)


Subject(s)
Humans , Middle Aged
3.
Rev. cuba. anestesiol. reanim ; 20(3): e751, 2021. tab
Article in Spanish | LILACS, CUMED | ID: biblio-1351978

ABSTRACT

Introducción: La epicondilitis constituye uno de los motivos de consulta más frecuentes tanto en la asistencia primaria como especializada y sin duda alguna, es uno de los problemas que tiene mayor repercusión en la persona que la padece. El tratamiento de las epicondilitis constituye un reto para la medicina debido a enormes implicaciones sanitarias, sociolaborales y el dolor e impotencia funcional que provoca. Objetivo: Evaluar la efectividad del lisado plaquetario autólogo como alternativa de tratamiento en pacientes enfermos con epicondilitis. Método: Se realizó un estudio cuasi experimental analítico longitudinal prospectivo en el que se evaluó el uso de lisado plaquetario autólogo como alternativa de tratamiento en pacientes con epicondilitis. El universo estuvo constituido por los pacientes que acudieron a consulta de Ortopedia y traumatología con el diagnóstico de epicondilitis, durante el periodo comprendido entre octubre de 2014 y julio de 2018. La muestra quedo constituida por 80 pacientes que cumplieron con los criterios de inclusión y exclusión. Resultados: El grupo de edad entre 36-56 años y del sexo femenino son los de mayor representación en padecer esta enfermedad. Las infiltraciones de lisado plaquetario autólogo aportan mejores resultados al convencional y se observa la mayor representación de pacientes que tuvieron una remisión total. Las complicaciones fueron mucho más evidentes en el tratamiento convencional. También es relevante el costo-beneficio del tratamiento con lisado plaquetario autólogo. Conclusiones: El tratamiento con lisado plaquetario autólogo puede ser una alternativa para mejorar la calidad de vida de los pacientes con epicondilitis(AU)


Introduction: Epicondylitis is one of the most frequent reasons for attending consultation in both primary and specialized care; while it is undoubtedly one of the problems with the greatest impact on the person who suffers from it. The managment epicondylitis is a challenge for medicine, due to the enormous health-related and social implications, as well as the pain and functional impotence that it causes. Objective: To assess the effectiveness of autologous platelet lysate as a treatment alternative in patients with epicondylitis. Method: A prospective, longitudinal, analytical and quasiexperimental study was carried out, in which the use of autologous platelet lysate as an alternative treatment in patients with epicondylitis was assessed. The universe consisted of patients who attended the orthopedics and traumatology consultation, during the period between October 2014 and July 2018, with a diagnosis of epicondylitis. The sample was made up of eighty patients who met the inclusion criteria; exclusion criteria were also considered. Results: The age group between 36 and 56 years, together with the female sex, are the most represented with respect to suffering from this disease. Infiltrations of autologous platelet lysate provide better outcomes than the conventional one, while greater representation of remitted patients is observed. Complications were much more evident in conventional treatment. The cost-benefit relationship of treatment with autologous platelet lysate is also relevant. Conclusions: Treatment with autologous platelet lysate can be an alternative to improve the quality of life of patients with epicondylitis(AU)


Subject(s)
Humans , Male , Female , Orthopedics , Primary Health Care , Quality of Life , Blood Platelets/physiology , Traumatology , Referral and Consultation , Prospective Studies , Longitudinal Studies , Elbow Tendinopathy/therapy
4.
Rev. cuba. hematol. inmunol. hemoter ; 37(2): e1261, 2021. tab
Article in Spanish | LILACS, CUMED | ID: biblio-1289430

ABSTRACT

Introducción: La búsqueda de alternativas para disminuir el tiempo de cicatrización y de hospitalización constituye uno de los aspectos fundamentales de la investigación actual. Los factores de crecimiento plaquetarios son capaces de potenciar la cicatrización. Objetivo: Determinar los beneficios de la aplicación del lisado de plaquetas homólogo sobre la zona donante del injerto autólogo de piel. Método: Se realizó un estudio longitudinal prospectivo en 20 pacientes tratados en el Hospital Hermanos Ameijeiras entre agosto de 2016 y mayo de 2019, que requirieron de injerto autólogo de piel en las zonas cruentas. Se realizaron dos tomas de injerto en el mismo paciente y región anatómica; una fue tratada con lisado plaquetario (zona de intervención) y otra con tratamiento convencional (zona control). La selección de pacientes fue intencional. Para estudiar las variables cualitativas se utilizaron números absolutos y proporciones y en las cuantitativas medidas de tendencia central y dispersión. Para la comparación de los resultados se aplicó la prueba de Friedman con un nivel de significación p ≤ 0,05. Resultados: La quemadura fue la principal causa de zona cruenta (75 por ciento), el grupo de edad más afectado fue el de mayores de 55 años. El porcentaje de cicatrización fue mayor en el grupo de intervención, con un tiempo de epitelización significativamente menor (p < 0,01), y el dolor en la zona intervenida fue menor. No hubo complicaciones. Conclusiones: Los beneficios encontrados en la zona intervenida con lisado plaquetario fueron significativos con una cicatrización más rápida y menor dolor(AU)


Introduction: The search for treatment alternatives that allow reducing wound healing and hospitalization time are fundamental aspects in research nowadays. Platelet growth factors are capable of enhancing wound healing. Objective: Determine the benefits of applying homologous platelet lysate on the donor area of autologous skin graft. Methods: A prospective longitudinal-section study was conducted in 20 patients with bloody areas that required autologous skin graft at the Hospital Hermanos Ameijeiras between August 2016 and May 2019. Two graft intakes were made in the same patient and anatomical region, one of them treated with platelet lysate (intervention zone) and one with conventional treatment (control zone). Patients selection was intentional. Absolute numbers and proportions were used to study the qualitative variables, and measures of central tendency and dispersion were used in the quantitative variables. To compare de results, the Friedman test was applied, setting a level of significance p < 0,05. Results: The main cause of bloody area was burns (75 percent), the most affected age group was those over 55 years, the healing percentage was greater in the intervention group with a statistically significant shorter epithelization time (p < 0,01) and there was less pain in the intervention zone. There were no complications. Conclusions: The benefits found in the intervened area with platelet lysate were significant with faster healing and less pain(AU)


Subject(s)
Humans , Tissue Donors , Wound Healing , Blood Platelets
5.
J Biosci ; 2020 Sep; : 1-8
Article | IMSEAR | ID: sea-214248

ABSTRACT

Low back pain due to degeneration of intervertebral disc (IVD) is a major health problem resulting insignificant disability as well as adding to the economic burden. Discectomy is a very common procedure doneworldwide to relieve this pain. At present all the surgically removed disc tissue is mostly discarded. However,there are reports that state that progenitor cells in the IVD can be grown ex vivo and have the potential to beused for IVD repair and regeneration. We report here that viable cells can be harvested from surgicallyremoved, herniated disc tissue and can be potentially used in cell based therapy. Further, we have successfullyreplaced xenogenic supplements such as foetal bovine serum with either autologous serum or human plateletlysate for culturing IVD cells from patient’s surgically removed disc tissue, without loss of any cell characteristics, including cell surface markers, growth factor secretion in the conditioned medium and osteogenic andchondrogenic differentiation potential in vitro. The present work will not only contribute to overcoming someof the major barriers in carrying out human clinical trials, but also provide a cheap, alternate source of proteinsand growth factors for growing IVD cells ex vivo for therapy

6.
Blood Research ; : 35-43, 2020.
Article in English | WPRIM | ID: wpr-820805

ABSTRACT

BACKGROUND: Fetal bovine serum (FBS) has been used to support the growth and proliferation of mammalian cells for decades. Owing to several risk factors associated with FBS, several trials have been conducted to evaluate substitutes to FBS with the same efficiency and the lower risk issues.METHODS: In this study, human platelet lysate (HPL) derived from activated human platelets was evaluated as an alternative to FBS due to the associated risk factors. To evaluate the efficiency of the preparation process, platelet count was performed before and after activation. The concentrations of several growth factors and proteins were measured to investigate HPL efficiency. HPL stability was studied at regular intervals, and optimal heparin concentration required to prevent gel formation in various media was determined. The biological activity of HPL and FBS was compared by evaluating the growth performance of Vero and Hep-2 cell lines.RESULTS: Result of platelet count assay revealed the efficiency of HPL preparation process. Growth factor concentrations in HPL were significantly higher than those in FBS, while the protein content of HPL was lower than that of FBS. Stability study data showed that the prepared HPL was stable for up to 15 months at −20℃. Ideal heparin concentration to be used in different media was dependent on calcium concentration. Results of cell viability assay showed that HPL was superior to FBS in supporting the growth and proliferation of Vero and Hep-2 cells.CONCLUSION: The HPL prepared by the mechanical activation of platelets may serve as an efficient alternative to FBS in cell culture process.


Subject(s)
Humans , Blood Platelets , Calcium , Cell Culture Techniques , Cell Line , Cell Survival , Heparin , Intercellular Signaling Peptides and Proteins , Platelet Count , Risk Factors
7.
Rev. cuba. ortop. traumatol ; 32(2): 0-0, jul.-dic. 2018. graf, tab
Article in Spanish | LILACS, CUMED | ID: biblio-1093701

ABSTRACT

Introducción: El retardo de consolidación es una complicación que resulta de un proceso de consolidación ósea anormal. Objetivo: Caracterizar a los pacientes con retardo de consolidación, infiltrados con lisado plaquetario autólogo. Métodos: Se realizó un estudio de casos, observacional, descriptivo, transversal y retrospectivo, en el Hospital General Docente Comandante Pinares, de enero 2008 a diciembre de 2017. Se revisaron 186 historias clínicas y se seleccionaron 80, que cumplían los criterios para el estudio. Se infiltró entre 6 mL de lisado plaquetario autólogo en los focos de fracturas, se evaluó el tiempo de consolidación ósea mediante radiografías seriadas y se registraron las complicaciones. Las variables del estudio fueron: edad, sexo, color de la piel, localizaciones óseas afectadas, sitios anatómicos del hueso, tiempo de consolidación ósea, complicaciones. Se empleó la distribución de frecuencias absoluta y relativa en el análisis de las variables cualitativas y la media aritmética para la variable cuantitativa edad. Para la relación entre variables cualitativas independientes se utilizó la prueba de chi-cuadrado. Resultados: Hubo más frecuencia de retardo de la consolidación en hombres de piel blanca, con edades comprendidas entre 26 y 45 años. Predominó en el tercio inferior de la tibia. El hueso que más tiempo requirió para su consolidación fue la tibia, con más de 16 semanas. No se describen complicaciones asociadas al implante. Conclusiones: El retardo de consolidación continúa siendo una complicación de difícil manejo. Es frecuente en hombres jóvenes y blancos. El lisado plaquetario autólogo es un buen coadyuvante en el tratamiento de esta complicación(AU)


Introduction: The delay of consolidation is a complication that results from an abnormal bone consolidation process. Objective: To characterize patients with delayed consolidation infiltrated with autologous platelet lysate. Methods: An observational, descriptive, cross-sectional and retrospective case study was conducted at Comandante Pinares General Teaching Hospital, from January 2008 to December 2017. One hundred eighty six (186) medical records were reviewed and eighty (80) were selected, since they met the study criteria. 6 mL of autologous platelet lysate was infiltrated in the foci of fractures. Serial radiographs were used to assess the bone healing time and complications were recorded. The variables of the study were age, sex, color of the skin, affected bone locations, anatomical sites of the bone, time of bone consolidation, complications. The distribution of absolute and relative frequencies was used in the analysis of qualitative variables and arithmetic mean for the quantitative age variable. Chi-square test was used for the relationship between independent qualitative variables. Results: The delayed consolidation was more frequency in white men, aged between 26 and 45 years. It predominated in the lower third of the tibia. Tibia was the bone that required more time for consolidation, more than 16 weeks. No complications associated with the implant are described. Conclusions: The delayed consolidation continues being a complication of difficult treatment. It is frequent in young and white men. The autologous platelet lysate is a good adjuvant in the treatment of this complication(AU)


Introduction: Le retard de consolidation est une complication résultant d'un processus de consolidation osseuse anormal.Objectif: Caractériser les patients atteints de retard de consolidation qui sont traités par infiltration de lysat plaquettaire autologue. Méthodes: Une étude observationnelle, descriptive, transversale et rétrospective a été réalisée à l'hôpital général universitaire Comandante Pinares, depuis janvier 2008 jusqu'à décembre 2017. Sur 186 dossiers médicaux révisés, on a sélectionné 80 respectant les critères d'inclusion de l'étude. Six millilitres de lysat plaquettaire autologue ont été injectés dans les foyers des fractures ; le temps de consolidation osseuse a été estimé par des radiographies en série, et les complications ont été enregistrées. On a utilisé des variables telles que l'âge, le sexe, la couleur de la peau, les localisations osseuses affectées, le site anatomique de l'os, le temps de consolidation osseuse, et les complications. On a employé la distribution de fréquences absolue et relative pour l'analyse des variables qualitatives et la moyenne d'âge, tandis que pour la relation entre les variables qualitatives indépendantes on a utilisé le test du chi-carré. Résultats: Le retard de consolidation a été beaucoup plus fréquent chez les hommes blancs entre 26 et 45 ans. Le tiers inférieur du tibia a été touché en prédominance. L'os qui a exigé beaucoup plus de temps de consolidation a été le tibia (plus de seize semaines). Des complications associées à l'implant n'ont pas été décrites. Conclusions: Le retard de consolidation demeure une complication difficile à traiter. Il est fréquemment observé chez les hommes jeunes et blancs. Le lysat plaquettaire autologue est un bon adjuvant dans le traitement de cette complication(AU)


Subject(s)
Humans , Male , Female , Fractures, Malunited/therapy , Platelet-Rich Plasma , Epidemiology, Descriptive , Cross-Sectional Studies , Retrospective Studies , Observational Study
8.
Rev. cuba. hematol. inmunol. hemoter ; 34(1): 89-95, ene.-mar. 2018. ilus
Article in Spanish | LILACS, CUMED | ID: biblio-978414

ABSTRACT

La enfermedad pilonidal o fístula pilonidal es una afección que se presenta a lo largo del pliegue entre los glúteos, desde el hueso sacro hasta el ano. Esta afección involucra los folículos pilosos de la región presacra, los cuales penetran en el tejido celular subcutáneo y forman un quiste alrededor. Se presenta como una o varias fositas o depresiones de diámetro pequeño, puntiforme por la que emergen pelos. Como parte del tratamiento médico se describen medidas locales, la antibióticoterapia de amplio espectro y tratamiento quirúrgico, en el cual se describen técnicas de resección abiertas y cerradas. Se presenta el caso de una adolescente femenina de 16 años de edad, diagnosticada hace año y medio con una fístula pilonidal que requirió tratamiento con vitaminoterapia, medidas locales e intervención quirúrgica en tres ocasiones. En la última de ellas se produjo dehiscencia del sitio quirúrgico, escaso tejido de granulación y pobre cicatrización. Por tal motivo se decidió la aplicación de lisado de plaquetas en toda el área de la fístula a razón de 1 mL en días alternos, durante dos semanas, se continuó una aplicación semanal durante las 4 semanas siguientes hasta que se obtuvo el cierre total. La utilización del lisado de plaquetas favorece el tejido de granulación y la cicatrización en la fistula pilonidal(AU)


Intergluteal pilonidal disease or pilonidal fistula is a condition presenting along the cleft between the buttocks, which runs from the bone at the bottom of the spine (sacrum) to the anus. This condition involves the hair follicles of the presacral region, which penetrates into the subcutaneous tissue and forms a cyst around. It is presented as one or more pits or depressions of small diameter emerging punctuate by hairs. As part of medical treatment local measures, broad-spectrum antibiotic therapy and surgical treatment, which may be open and closed resection techniques, are described. We present a case of a 16- year- old female teenager, diagnosed a year and half ago, with a pilonidal fistula that required surgical treatment in 3 occasions, with local measures and vitamin therapy; dehiscence of the surgical site, poor tissue granulation and poor healing. It was applied platelet lysate throughout the area of the fistula at 1 mL alternate days, for two weeks, infiltration was continued for 4 weeks obtaining the total closure of the same. Therefore the use of platelet lysate promotes granulation tissue and scarring in pilonidal fistula(AU)


Subject(s)
Female , Adolescent , Platelet Activating Factor/therapeutic use , Rectal Fistula/therapy , Intercellular Signaling Peptides and Proteins/therapeutic use , Case Reports , Regenerative Medicine
9.
Rev. cuba. cir ; 57(1): 49-57, ene.-mar. 2018. tab
Article in Spanish | LILACS | ID: biblio-960346

ABSTRACT

Introducción: las fisuras anales son un problema de salud importante en la población cubana, incluso con la supresión de los factores desencadenantes, muchas de ellas tienden a la cronicidad; su evolución es tórpida, y es elevado el riesgo de complicación de las mismas. Objetivo: evaluar la cicatrización de las fisuras anales mediante lisado plaquetario en el Hospital General Docente Comandante Pinares de San Cristóbal. Método: se realizó un estudio cuasi experimental en el servicio de cirugía general del Hospital General Docente Comandante Pinares desde enero 2015 hasta junio 2017. Se incluyeron en el estudio todos los pacientes adultos, de ambos sexos, atendidos por el diagnóstico de fisura anal con inadecuada respuesta al tratamiento convencional y sin otras enfermedades de base que impidieran el uso de la terapia regenerativa. A todos los pacientes se les solicitó el consentimiento informado previa explicación de las características del estudio. Resultados: la hemorroidectomía fue el proceder más frecuente asociado a las fisuras anales. El dolor fue el síntoma predominante antes del tratamiento. La reducción del área de la fisura fue evidente en los tratados con lisado. El efecto final en los pacientes tratados con el método fue positivo. Conclusiones: se comprobó que el lisado plaquetario usado para la cicatrización de la fisura anal crónica fue efectivo con un resultado de satisfacción por parte de los pacientes, con un mínimo de reacciones adversas. Puede representar un futuro promisorio en el tratamiento de esta enfermedad(AU)


Introduction: Anal fissures are an important health problem in the Cuban population, even with the suppression of the triggering factors, many of them tend to chronicity; its evolution is torpid, and their risk for complication is high. Objective: To evaluate the healing of anal fissures by platelet lysate in Comandante Pinares General Teaching Hospital in San Cristóbal. Method: A quasi-experimental study was performed in the general surgery service of Comandante Pinares General Teaching Hospital, from January 2015 to June 2017. All adult patients, of both sexes, were attended upon diagnosis of anal fissure and were included in the study. with inadequate response to conventional treatment and without other underlying diseases that could prevent the use of regenerative therapy. All patients were asked for their informed consent prior explanation of the study characteristics. Results: Hemorrhoidectomy was the most frequent procedure associated with anal fissures. Pain was the predominant symptom before treatment. The reduction in the area of ​​the fissure was evident in those patients treated with the lysate. The final effect in patients treated with the method was positive. Conclusions: The usage of the platelet lysate for the healing of chronic anal fissure proved effective, with a result of patient satisfaction, with a minimum of adverse reactions. It may represent a promising future in the treatment of this disease(AU)


Subject(s)
Humans , Male , Female , Autoantigens/therapeutic use , Precipitating Factors , Regenerative Medicine/methods , Fissure in Ano/diagnosis , Data Collection/statistics & numerical data
10.
Clinical Medicine of China ; (12): 281-284, 2018.
Article in Chinese | WPRIM | ID: wpr-706669

ABSTRACT

The regulator does not encourage the use of fetal bovine serum (FBS) as a cell culture supplement to reduce the risk of zoonosis and heterogeneous immune responses.In addition,FBS production is subject to strict examination because of animal welfare principles.Mesenchymal stem cells (MSC) in the platelet lysate (PL) showed a faster growth rate,while maintaining good osteogenic differentiation,PL also have the key factors of MSC attachment,biological safety and immune regulation ability after MSC amplification.PL was proposed as an altemative to MSC in vitro expansion of FBS.This paper briefly introduces the latest research on the field of PL amplification in vitro.

11.
Journal of Shanghai Jiaotong University(Medical Science) ; (12): 1033-1038, 2018.
Article in Chinese | WPRIM | ID: wpr-843609

ABSTRACT

Objective • To explore optimal placental derived mesenchymal stem cells (PMSCs) culture medium using different combination of human platelet lysate (HPL), basic fibroblast growth factor (bFGF) and traditional fetal bovine serum (FBS) for further basic and clinical study. Methods • Single cell derived PMSCs was harvested and incubated with 4 kinds of culture, i.e, FBS, FBS+bFGF, HPL and HPL+bFGF. The morphology, growth state, cell phenotype and multi-energy differentiation were observed. Cells of P1, P2, P3 and P4 generation were counted respectively. The number of units of colony formation was analyzed by inoculating P4 cells. Results • It was identified that PMSCs had the biological properties of MSCs. Quantificationally, cell density reached (1.12×107) cells/cm2 in FBS+bFGF group and (1.24×107) cells /cm2 in HPL group (P>0.05) in P4, while those in FBS group and HPL+bFGF group were (5.58×106) cells /cm2 and (8.56×106) cells /cm2, respectively. For cell morphology, the P4 PMSCs of FBS+bFGF and HPL groups kept adherent growth, but the HPL cells could not be adherent in P5 generation. The number of colony was 51/well in FBS+bFGF group, and it was 52/well in HPL group (P>0.05) in P4. The FBS+bFGF group and the HPL group were able to maintain the characteristics of MSCs and the ability of pluripotent differentiation in the P4 generation. Conclusion • PMSCs in P4 cultured in HPL medium can keep the biological characteristics and meet the clinical transplantation requirements in quality and quantity, which are preferable for their low immunogenicity to clinical applications. In long term, PMSCs cultured in FBS+bFGF medium are preferable for the longer lasting characters of MSCs and larger quantity in basic studies. HPL+bFGF medium has no advantage on quality and quantity.

12.
Rev. cuba. hematol. inmunol. hemoter ; 33(4): 97-103, oct.-dic. 2017. ilus
Article in Spanish | LILACS | ID: biblio-960442

ABSTRACT

La extrofia vesical es una anomalía congénita grave del tracto urinario inferior que afecta la vejiga, los huesos pelvianos, la pared abdominal, los genitales externos, el perineo y, en algunos casos, el intestino. Los tratamientos convencionales están basados en técnicas quirúrgicas, para lograr reconstruir la vejiga, los genitales y cerrar el defecto de la pared. Se presenta el caso de una niña de 3 años de edad, en la que el tratamiento quirúrgico se había aplicado en 6 ocasiones sin resultados. Se decidió combinar el tratamiento quirúrgico con la aplicación de medicina regenerativa. Se le aplicó lisado de plaquetas en la pared de la vejiga y los bordes de la pared abdominal a razón de 1 mL semanal, durante 4 semanas. Se logró la regeneración de los tejidos que permitió afrontar los bordes de dichas estructuras y realizar la técnica quirúrgica convencional. Como resultado se logró cierre total de vejiga, uretra y pared abdominal, sin fístulas entre estas estructuras ni al exterior. La utilización del lisado de plaquetas favorece el crecimiento y regeneración de los tejidos que componen el tracto urinario. La cirugía puede ser una solución definitiva, después de haber aplicado los factores de crecimiento plaquetarios, que preparan el tejido en cuanto a calidad y cantidad, favoreciendo el afrontamiento de los bordes, la cicatrización y disminuyendo las complicaciones posquirúrgicas(AU)


Bladder exstrophy is a severe congenital anomaly of lower urinary tract that affects the bladder, pelvic bones, abdominal wall, external genitalia, perineum and in some cases intestine. Conventional treatments are based on surgical techniques, in order to reconstruct bladder, genitals and close wall defect. We present a case of a 3 year old girl, in which surgical treatment was applied 6 times without results. It was decided to combine the surgical treatment with application of regenerative medicine. It was applied platelet lysate in the bladder wall and the edges of the abdominal wall at the rate of 1 mL weekly for 4 weeks, achieving tissue regeneration. It enabled to face the edges of those structures and perform conventional surgical technique. As a result, we achieved a total closure of bladder, urethra and abdominal wall, without fistulas either between these structures or outside. Therefore the use of platelet lysate promotes growth and tissue regeneration comprising the urinary tract, decreasing number of interventions, time exposition structures of the abdominal cavity, and post surgical complications such as fistulas(AU)


Subject(s)
Humans , Female , Child, Preschool , Bladder Exstrophy/surgery , Bladder Exstrophy/therapy , Regenerative Medicine/methods , Platelet Activation/immunology
13.
Rev. habanera cienc. méd ; 16(2): 189-198, mar.-abr. 2017.
Article in Spanish | LILACS, CUMED | ID: biblio-845274

ABSTRACT

Introducción: El tratamiento de la periodontitis crónica se prolonga por persistencia de la inflamación en tejidos afectados. La medicina regenerativa muestra resultados alentadores. Es la primera vez en Cuba, según bibliografía revisada, que se usa la combinación de lisado plaquetario y células mononucleares autólogas en este tratamiento. Objetivo: Mostrar el efecto de la combinación del lisado plaquetario y células mononucleares autólogas en el tratamiento de la periodontitis. Presentación de un caso: Paciente femenina de 44 años de edad, con diagnóstico de periodontitis, quien desde hace 1 año lleva tratamiento, sin efectuarse procedimientos quirúrgicos por la inflamación persistente. Es remitida a la consulta de periodoncia del Hospital Enrique Cabrera para recibir tratamiento con medicina regenerativa. Se consideró tratar con lisado de plaquetas autólogas, una vez concluido el raspado y alisador radicular, se prefundieron las encías afectadas con el lisado plaquetario. A los 7 días de aplicado el lisado se constatan las encías sin signos clínicos de inflamación, y disminución ostensible del número de dientes afectados y la profundidad o eliminación de las bolsas periodontales y movilidad dentaria. Al mes se trataron quirúrgicamente los defectos óseos con implante de células mononucleares. Al evaluar a los 6 meses, se hallaron de forma variable, signos radiográficos de organización del trabeculado, definición de la cortical y formación ósea en zona de defectos óseos. Conclusiones: El tratamiento combinado del lisado plaquetario autólogo y células mononucleares muestra una evaluación satisfactoria en el tratamiento de la periodontitis crónica y reduce el tiempo de tratamiento(AU)


Introduction: Treatment of chronic periodontitis is prolonged by persistent inflammation in affected tissues. Regenerative medicine shows encouraging results. It is the first time in Cuba, according to the reviewed literature, that the combination of platelet lysate and autologous mononuclear cells is used in this treatment. Objective: to show the effect of the combination of platelet lysate and autologous mononuclear cells in the treatment of periodontitis. Presentation of the case: A 44-year-old female patient diagnosed with periodontitis who had been treated for 1 year without surgical procedures due to persistent inflammation. She is referred to the periodontics consultation of the Dr. Enrique Cabrera General Hospital to receive treatment with regenerative medicine. Treatment with autologous platelet lysate was considered, once the scaling and root planer had been completed, the affected gingivae were prefixed with the platelet lysate. At 7 days after the lysate is applied, the gingiva shows no clinical signs of inflammation, and a noticeable reduction in the number of affected teeth and the depth or elimination of periodontal pockets and tooth mobility. Bone defects with a mononuclear cell implant were surgically treated one month later. When evaluating at 6 months, radiographic signs of trabecular organization, definition of the cortical bone, and bone formation in the area of bone defects were found variably. Conclusions: The combined treatment of autologous platelet lysate and mononuclear cells shows a satisfactory evaluation in the treatment of chronic periodontitis and reduces treatment time(AU)


Subject(s)
Humans , Female , Adult , Platelet Transfusion/methods , Leukocytes, Mononuclear/transplantation , Chronic Periodontitis/therapy
14.
Rev. cuba. angiol. cir. vasc ; 16(2): 164-174, jul.-dic. 2015. tab
Article in Spanish | LILACS, CUMED | ID: lil-756350

ABSTRACT

Introducción: los factores de crecimiento plaquetario son proteínas bioactivas que se sintetizan y almacenan en las plaquetas. Objetivo: evaluar la efectividad de los factores de crecimiento aportados por el lisado plaquetario alogénico en el tratamiento tópico de úlceras posflebíticas Métodos: se realizó un estudio cuasi-experimental con control simultáneo en la consulta de medicina regenerativa, Hospital General Docente "Comandante Pinares", entre enero de 2008 y diciembre de 2012. Se evaluaron 135 pacientes con el diagnóstico de úlceras posflebíticas con inadecuada respuesta al tratamiento convencional y ausencia de otras enfermedades de base que impidieran una respuesta a la terapia regenerativa. Los pacientes se dividieron en dos grupos: 90 recibieron tratamiento con la aplicación local del lisado plaquetario obtenido de las plaquetas alogénicas ABO compatibles y 45 mantuvieron el tratamiento convencional (grupo control). El tiempo de respuesta fue la característica distintiva para medir la eficacia entre ambos tratamientos. Resultados: predominó el sexo femenino y edad de más de 50 años. Los síntomas cardinales del síndrome posflebítico, estuvieron presentes en un mayor número de pacientes del grupo tratado con el lisado plaquetario, sin embargo, a los 30 días, se constató una mejoría de los mismos así como una disminución significativa del área promedio de las úlceras. En el grupo tratado con lisado, 86 pacientes remitieron sus síntomas en menos de seis semanas, frente a solo ocho en el mismo tiempo en el grupo convencional. Conclusiones: el uso de factores de crecimiento aportados por el lisado plaquetario alogénico fue efectivo en el tratamiento tópico de úlceras posflebíticas(AU)


Introduction: platelet-derived growth factors are bio-active proteins that are synthesized and stored in the platelets. Objective: to evaluate the effectiveness of allogenic platelet lysate-derived growth factors in the topical treatment of postphlebitis ulcers. Methods: a quasi-experimental study with simultaneous control was conducted from January 2008 through December 2012 in the regenerative medicine service of "Comandante Pinares" general teaching hospital located in San Cristobal, Artemisa province, Cuba. One hundred and thirty five patients with diagnosis of postphlebitis ulcers, inadequate response to the conventional treatment and absence of other illnesses that could hinder such response to regenerative therapy were evaluated. The patients were divided into two groups: 90 treated with local use of compatible ABO allogenic platelet-derived platelet lysate and 45 kept under the conventional treatment (control group). The reaction time was the distinctive characteristic to measure the effectiveness of both treatments. Results: females and over 50 years-old age predominated. The main symptoms of the posphlebitic syndrome were present in a high number of patients in the group treated with the platelet lysate. Thirty days later, these symptoms significantly improved and the average ulcer area dramatically decreased. There was observed symptoms remission in eighty six patients in less than six weeks in contrast with only eight in the conventional group during this period. Conclusions: the use of allogenic platelet lysate-derived growth factors was effective in the topical treatment of postphlebitis ulcers(AU)


Subject(s)
Humans , Postphlebitic Syndrome/complications , Intercellular Signaling Peptides and Proteins
15.
Annals of Laboratory Medicine ; : 43-50, 2014.
Article in English | WPRIM | ID: wpr-193129

ABSTRACT

BACKGROUND: Standard protocols are lacking for the preparation of platelet lysates (PL) as an alternative to using fetal bovine serum as a cell culture supplement. This study aimed to establish optimum conditions for preparing PL for use in cell cultures. METHODS: Cell density in three pooled platelet concentrates (PC) were adjusted to 1x10(12)/L and 2x10(12)/L. PL was prepared from PC by 1 to 3 freeze-thaw (FT) cycles. HaCaT cells were cultured in media supplemented with 5% or 10% PL. Cell numbers were estimated using a Cell Counting Kit-8 (CCK-8; Dojindo Laboratories, Japan). Growth factors were quantified by using the Luminex 200 system (Luminex Corporation, USA). RESULTS: Cell proliferation rates in the presence of PLs were similar when prepared from PCs of both cell densities. The rates were higher in media containing 5% PL than 10% PL when prepared by two FT cycles. Concentrations of vascular endothelial growth factor (VEGF), platelet-derived growth factor-AB/BB (PDGF-AB/BB), PDGF-AA, and epidermal growth factor (EGF) were significantly higher in PL prepared from PC with a cell density of 2x10(12)/L than 1x10(12)/L PC. However, only VEGF and PDGF-AA concentrations in PLs were correlated with HaCaT cell counts. CONCLUSIONS: The 5% PL from PC with a cell density of 1x10(12)/L prepared by two FT cycles treatment was the most effective condition that supported steady HaCaT cell proliferation. Our finding may be useful for preparing PL-supplemented cell culture media.


Subject(s)
Humans , Blood Platelets/chemistry , Cell Line , Cell Proliferation/drug effects , Culture Media/pharmacology , Epidermal Growth Factor/chemistry , Platelet-Derived Growth Factor/chemistry , Vascular Endothelial Growth Factor A/chemistry
16.
Academic Journal of Second Military Medical University ; (12): 1070-1077, 2013.
Article in Chinese | WPRIM | ID: wpr-839477

ABSTRACT

Objective To compare the effects of platelet rich plasma (PRP) and platelet lysate (PL) on proliferation and cell cycle of cultured rat bone marrow stem cells (BMSCs). Methods BMSCs were obtained from twenty 4-week-old SD rats using the whole bone marrow isolation and cultivation method and were identified with flow cytometry. Blood samples were taken from the hearts of thirty 12-week-old SD rats and gradient centrifugation was used to prepare PRP, and PL was obtained after three times of centrifugation and repeated freezing and thawing. The third generation of BMSCs with good growth state were divided into seven groups according to different culture media: ordinary complete medium (A group), 1% PRP-conditioned medium (B group), 1% PL-conditioned medium (C group), 5% PRP-conditioned medium (D group), 5% PL-conditioned medium (E group), 10% PRP-conditioned medium (F group), and 10% PL-conditioned medium (G group). The proliferation of BMSCs was assessed by MTT assay. The PCNA protein expression was assessed by immunofluorescence method. Cell cycle of BMSCs was tested by flow cytometry. Western blotting analysis was used to analyze CyclinD1 and p27 Kip1 protein expression of BMSCs. Results The proliferation of BMSCs was significantly promoted by 1 %, 5%, 10% PRP- and 1 %, 5%, 10% PL-conditioned media after cultured for 24 h, 48 h, and 72h in a time- and dose-dependent manner (P0. 05). Immunofluorescence assay showed that PRP and PL both significantly promoted PCNA protein expression in a dose-dependent manner (P0. 05). Western blotting analysisshowed that 5% PRP and 5% PL significantly up-regulated CyclinD1 and down-regulated the expression of p27 Kip1. Conclusion Different concentrations of PL and PRP can accelerate cell cycle progression of cultured rat BMSCs by up-regulation CyclinD1 and inhibiting p27 Kip1, promoting the proliferation of BMSCs in a time- and dose-dependent manner. PL and PRPat the same concentrationhave the same proliferation-promoting effect, indicating that PL may be used as an alternative of PRP to promote the repair of bone defects.

17.
Rev. cuba. hematol. inmunol. hemoter ; 28(4): 374-384, oct.-dic. 2012.
Article in Spanish | LILACS | ID: lil-663861

ABSTRACT

El tratamiento de las úlceras postrombóticas o posflebíticas constituye un reto para la medicina debido a su cronicidad y a sus frecuentes recidivas que condicionan múltiples trastornos locales y sistémicos, con una mala calidad de vida del paciente. En este trabajo se incluyeron 80 pacientes con úlceras posflebíticas en miembros inferiores que fueron divididos en 2 grupos: 40 tratados con lisados de plaquetas alogénicas conservadas y 40 tratados convencionalmente, que conformaron el grupo control. Se consideró como buen resultado cuando a los 30 días de tratamiento o antes, el paciente presentó una respuesta parcial o total. En el 95 por ciento de los enfermos tratados con el lisado se obtuvo una buena respuesta (suma de las totales y parciales) contra el 75 por ciento en el grupo control (p>0,001). El uso del lisado plaquetario resultó un proceder simple y efectivo en el tratamiento de úlceras posflebíticas en miembros inferiores, que puede ser recomendado, ya que los pacientes pueden mantenerse en sus hogares y así se elimina el costo hospitalario que generalmente tiene el tratamiento de este tipo de lesión


Treatment of post-thrombotic ulcers or postflebitic is a challenge to medicine because of its chronicity and frequent recurrences that determine multiple local and systemic disorders with poor quality of life for patients. This study included 80 patients with lower limb posflebitic ulcers, who were grouped into 2 groups: 40 treated with preserved allogeneic platelet lysates and 40 were treated conventionally. The latter was the control group. It was considered good result when the patient had a partial or complete response after 30 days of treatment or before. Good response was found in 95 percent of patients treated with lysate (sum of total and partial values) versus 75 percent in the control group (p> 0.001). The use of platelet lysate was a simple and effective procedure in the treatment of lower limb posflebitic ulcers. This treatment can be recommended, since patients can stay at home, thus eliminating the hospital costs incurred in this type of treatment


Subject(s)
Humans , Male , Female , Young Adult , Middle Aged , Platelet-Derived Growth Factor/therapeutic use , Blood Platelets/physiology , Postphlebitic Syndrome/epidemiology , Postphlebitic Syndrome/therapy
SELECTION OF CITATIONS
SEARCH DETAIL