Comparison between fibroblasts and mesenchymal stem cells derived from dermal and adipose tissue.

OBJECTIVE: Stem cells have the ability to renew themselves and differentiate into various cell types. For this reason, numerous research groups have been studying these cells for their therapeutic potential. Some of the therapies, however, are not producing the expected results because of contamination by other cell types, especially by fibroblasts. In the cosmetic industry, stem cells are used to test the efficacy of anti-ageing and rejuvenation products. The purpose of this work was to gain a better understanding of the differences in phenotype, in gene expression associated with stem cells, in the pattern of cell surface proteins and in the differentiation capacity of adipose-derived stem cells, of skin-derived stem cells and of commercially available fibroblasts. METHODS: In this study, we compared fibroblasts with mesenchymal stem cells derived from bone marrow, skin (dermis) and adipose tissue, to assess the differentiation potential of fibroblasts. Dermal and adipose stem cells were isolated from aesthetic surgery patients, and fibroblasts were obtained from a commercial source. The following parameters were used in this study: immunophenotypic profile (positive: CD29, CD73, CD90 and CD105; negative: CD14, CD45 and HLA-DR); differentiation into osteoblastic, chondrogenic and adipogenic cell types; and PCR array to analyse the gene expression of cells isolated from different culture passages. RESULTS: Fibroblasts express the same cell immunophenotypic markers, as well as the genes that are known to be expressed in stem cells, and were shown to be expressed also in adipose and dermis stem cells. Fibroblasts are also able to differentiate into the three cell lineages mentioned above, that is, adipocytes, osteocytes and chondrocytes. CONCLUSION: Human dermal fibroblasts have a potential to adhere to plastic surfaces and differentiate into other cell types. However, for stem cells intended to be used in cosmetics, experiments conducted with contaminated fibroblasts may produce poor or even falsely negative results for the efficacy of the active ingredient or formulation and thus conceal their promising effects as anti-ageing and skin rejuvenation products.

Multinuclear solid state NMR investigation of two polymorphic forms of ciprofloxacin-saccharinate.

Two polymorphic forms of a novel pharmaceutical compound, ciprofloxacin-saccharinate (CIP-SAC), are analyzed using one dimensional (1D) and two dimensional (2D) (1)H nuclear magnetic resonance (NMR) at fast magic angle spinning (MAS). Additionally (15)N spectroscopy and (1)H-(13)C correlation experiments were performed to complement our conclusions. The 1D (1)H NMR spectra of CIP and complexes reveal valuable information about the ionic bonding between ciprofloxacin and saccharine. Additionally, these spectra allow us to perform a clear characterization of each solid form, giving the number of molecules per unit cell in one of the polymorphs. From 2D (1)H-(1)H spectra obtained through double quantum correlations we can arrive at important conclusions about the hydrogen bonding, conformation, and intra and inter-molecular interactions present in these compounds. Comparing and contrasting the (1)H-(1)H correlation data obtained for both polymorphic forms and taking into account the single crystal structure data existing for the solid form CIP-SAC (II) was possible to extract some conclusions on the polymorph CIP-SAC (I) where no single crystal information is available. (1)H MAS NMR is shown to be an important tool in the field of polymorphism and for the characterization of multicomponent pharmaceutical compounds.

Dermolipectomia Abdominal em âncora após cirurgia bariátrica / Abdominal dermolipectomy in anchor after bariatric surgery

A obesidade mórbida é reconhecida atualmente como um grande problema para a saúde. Os tratamentos clínicos desta patologia são falhos quando avaliados a longo prazo. Isto levou os cirurgiões a desenvolverem técnicas que resultam em efeitos restritivos ou malabsortivos à ingestão de alimentos. Após alguns meses da cirurgia bariátrica, existe uma perda de peso maciça resultando em grande flacidez da pele do abdômen, mamas, coxas e braços. Neste estudo avalia-mos a técnica de Correa-Iturraspe para o tratamento da região abdominal em dezessete pacientes que apresentaram grande perda ponderal após cirurgia bariátrica.

Morbid obesity is increasingly recognized as a major health concern. Drug treatments of the morbid obese have entirely failed in the long run. These circumstances have constituted incentives for surgeons to develop techniques resulting in malabsorptive or restrictive effects on food intake. Some months after the bariatric surgery there is a massive weight loss and a great skin laxity mainly at the abdomen, breast, tights and arms. In this study we evaluate the Correa-Iturraspe technique to treat the abdominal region in seventeen patiens with massive weigth loss after bariatric surgery.

Tratamento cirúrgico da gigantomastia / Surgical Treatment of Gigantomastia

Mastoplastia redutora é um procedimento cirúrgico bastante requisitado por pacientes que apresentam mamas grandes associadas a dores lombres. As grandes hipertrofias impõem técnicas que permitam ressecções associadas ao tratamento da ptose que, na maior parte dos casos, é acentuada. Neste estudo analisamos as técnicas empregadas em 231 casos de mastoplastia redutora, realizados no Serviço de Cirurgia Plástica do Hospital de Clínicas da UFPR no período de 1998 a 2002, das quais 13,8 foram considerados casos de gigantomastia.

Women with big breasts and back pain claim for a reduction mammaplasty. Large volume breast reductions need special atention for the nipple areolar complex migration. In this study we analise the techniques used in 231 reduction mammaplasties performed at “Hospital de Clínicas da Universidade Federal do Parana” from 1998 to 2002. 13,8 of the cases where considered with very large hipertrophies.

Microssomia craniofacial: experiência de 105 casos em 7 anos / Hemifacial microsomy: experience with 105 cases during 7 years

A Microssomia Craniofacial é deformidade com grande variedade de apresentações clínicas. Tratamos 105 casos em 7 anos, entre 1996 a 2002. Os casos foram revisados enfocando as suas alterações anatômicas. A idade de início do tratamento foi entre 0 e 5 anos em 39, 6 a 10 anos em 27,6 e após 10 anos em 33,4. Em 44,8 o lado comprometido foi o direito, o esquerdo em 38 e bilateral em 17,2. O pavilhão auricular era normal em 10; microtia correspondeu a 81 das deformidades auriculares, anotia a 12,6, orelha constricta a 6,3, question ear a 4,2, duplicidade a 4,2 e ausência do lóbulo a 1. Em 65,7 dos pacientes o meato acústico estava ausente e em 2,8 havia atresia. De acordo com a classificação de Pruzanski, foram de 35,2 as alterações mandibulares de Grau I, 21,9 de Grau IIA, 16,1 de Grau IIB e 3,8 de Grau III. Em 22,8 a mandíbula apresentava-se normal. Paralisia facial foi encontrada em 11,4 e macrostomia em 22,8. Em 10 dos pacientes apresentavam alterações oftalmológicas, dentre elas, 3 casos dermóide epibulbar. Em 21,9 foram identificadas outras deformidades faciais, com 5 casos de hipoplasia de partes moles, 9 de fissuras lábiopalatais e 2 de atrofia do masséter.

Hemifacial Microsomia is a deformity with a great variety of clinical feature. We have been treating 105 cases in last 7 years. The revision is focusing over the anatomic disorders. The patients looked for treatment between 0 – 5 y.old in 39, 5 – 10 in 27,6 and after 10 years old in 33,4. In 44,8 of the patients the deformities were at right side and 38 in the left, and in 17,2 was bilateral. Normal ear was seen in 10. In patients with auricular deformities microtia was seen in 81, anotia 12,6, lop and cup ear in 6,3, question ear in 4,2, duplicity in 4,2 and absence of lobulus in 1. In 65,7 of the patients the meatus was absence and 2,8 with atresic meatus. According to classification of Pruzanski, 35,2 of mandibular deformities were grade I, 21,9 grade IIA, 16,1 grade IIB and 3,8 grade III. Mandible was normal in 22,8. Facial palsy was found in 11,4, and macrostomy in 22,8. Around 10 of our patients had ocular deformities, and 3 of them had epibulbar dermoids. Others facial malformation occurred in 21,9, included: soft tissue hipoplasia in 5 cases, cleft lip and/or palate in 9 cases, and masseter atrophy in 2 cases .

Inclusão de prótese mamária por via perimamilar: relato de caso / Mammary prostheses inclusion via perimammilar: case report

Mamaplastia de aumento é cirurgia amplamente realizada em todo o mundo, com tendência atual de redução de cicatrizes. Em casos onde a aréola é grande e não há ptose mamária, pode-se utilizar a via transareolomamilar, com redução da aréola e cicatiz na base do mamilo. Apresentamos o relato de um caso de inclusão de prótese mamária com redução do complexo aréolo-mamilar e cicatriz perimamilarn.

Augmentation mammaplasty is a very common surgery performed around the world. This paper presents a case report where we used a surgical access positioning the scar around the nipple.

Lipoaspiração ultrassônica em ginecomastia / Ultra-sound assisted liposuction in gynecomastias

A lipoaspiração ultrassônica vem se tornando bastante indicada no tratamento das ginecomastias, devi- do à boa qualidade dos resultados obtidos. O presente estudo relata 11 casos de ginecomastia glandular e glândulo-gordurosa, no período de 1999 a 2002, submetidos à lipoaspiração ultrassônica e lipoaspiração convencional complementar, com cânulas de médio e pequeno calibres. Foi utilizado o equipamento Lisonix 2000, numa amplitude de 5, ou seja, 50 da potência do aparelho, com cânulas de 32 cm de comprimento e 3 mm de diâmetro. O volume médio aspirado, pela lipoaspiração ultrassônica, foi de 222 ml na mama direita e de 225 ml na mama esquerda, enquanto que o volume aspirado por lipoaspiração convencional foi de 200 ml e de 205 ml, respectivamente, totalizando em média, 852 ml por paciente. O tempo médio de lipoaspiração ultrassônica foi de 7 minutos e 12 segundos. Podemos concluir que, a lipoaspiração ultrassônica tem sua indicação, tanto em ginecomastia gordurosa quanto glandular, com uma evolução pós- operatória mais rápida, sem a necessidade de uma incisão na aréola e ressecção cirúrgica da glândula ma- mária.

The ultrasound assisted liposuction is becoming more popular in treating gynecomastias. This paper reports 11 cases of fatty-glandular breasts treated from 1999 to 2002 at private clinic, which were undertaken to ultrasound-assisted lipoplasty and complementary conventional liposuction, with small and medium canulas. Lisonix 2000 was used with 32 cm length canulas and diameter of 3 mm.The medium volume aspirated by ultrasound- assisted lipoplasty in the right breast was 222 ml and 225 ml were aspirated from the left breast, while the volume aspirated by conventional liposuction was 200 ml and 205 ml, respectively, with a total of 852 ml per patient. The medium time of liposuction for each side was 7 minutes and 12 seconds. The ultrasound-assisted lipoplasty is indicated either in fatty or glandular gynecomastia, with better results when compared with conventional liposuction. It has a faster recovery period without the need for glandular tissue resection.

Histopathologic and morphometric evaluation of the skin abnormalities induced by erbium:YAG and carbon dioxide lasers in 10 patients.

In the 1960s, carbon dioxide (CO2) laser therapy started to be applied to eliminate wrinkles, actinic scars, and acne because of its capacity of induce intracellular water vaporization. However, recent studies have shown the efficacy of the erbium laser in removing delicate and moderate scars. Furthermore, the postoperative lesions induced by the erbium laser seem to resolve faster and with less erythematous pattern compared with lesions induced by the CO2 laser. The purpose of this study was to determine the immediate pathologic alterations caused by single applications of CO2 and erbium lasers and their association in human skin shreds. Ten white female patients aged 30 to 63 years underwent rhytidectomy, and their respective shreds, which were prepared for excision, were tattooed with the CO2 laser, the erbium laser, or a combination of both in random order and number of applications, before final removal. This project was approved by the local ethical committee. After surgical removal, these tattooed shreds were fixed in 10% buffered formalin and submitted to histopathologic analysis. Morphometric studies demonstrated the normal skin thickness and thickness of the laser-treated area, and their subtraction resulted in the ablation damage values. Residual thermal damage corresponded to the thickness of the affected skin from the most superficial layer of tissue in the laser-treated area down to the deepest dermal area with basophilic degeneration of collagen fibers. Our results showed that two CO2 applications resulted in greater ablation and residual thermal damage when compared with only one CO2 application. The same was true in comparisons of one and two applications of the erbium laser. Both results were statistically significant (p < 0.05). When one isolated erbium and one isolated CO2 application were compared, ablation damage was greater in the former group, although with no statistical significance. One CO2 plus one erbium application compared with one isolated CO2 application showed similar ablation damage but greater residual thermal damage in the latter group (p < 0.05). These observations might contribute to our understanding of the lesions caused in the human skin by erbium and CO2 lasers and eventually help determine the ideal laser combination for the appropriate surgical treatment.

Breast shape: a technique for better upper pole fullness.

The authors offer a new technique that provides a better long-term upper pole fullness to the shape of the breasts following reduction mammoplasty, thus creating an overall more satisfactory aesthetic appearance for both breasts.

Utilizacao do retalho de lingua nas lesoes labio-palatinas. / Use of tongue flaps in cleft palate

Os autores apresentam quatro casos em que foi realizado retalho de lingua, sendo tres para fechamento de fistulas palatinas e um caso para correcao de atrofia de labio superior pos-irradiacao. Discutem a indicacao desta tecnica e a sua vantagem em relacao a outros metodos de tratamento destas patologias. O retalho e confeccionado na regiao dorsal mediana da lingua, com base anterior. O segundo tempo e realizado apos 15 dias, para liberacao do pediculo e modelagem do retalho, com os retoques necessarios para o completo fechamento da area a ser preenchida pelo retalho. Os autores acreditam que a imobilizacao da lingua com sua fixacao tanto a arcada dentaria como ao labio inferior sao necessarios somente quando nao houver compreensao por parte do paciente ou se este apresentar baixa idade. Finalmente apresentam e discutem os resultados obtidos com o metodo empregado