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1.
Dermatol Online J ; 27(7)2021 Jul 15.
Artigo em Inglês | MEDLINE | ID: mdl-34391335

RESUMO

Reactive arthritis is an extremely rare spondyloarthritis that affects the peripheral joints and spine, resulting in common symptoms such as arthritis, urethritis, conjunctivitis, and mucocutaneous lesions. On rare occasions, oral lesions such as circinate erosions on the hard and soft palate, gums, tongue, and cheeks may occur. Reactive arthritis may develop during or after genitourinary or gastrointestinal bacterial infections such as Shigella, Salmonella, Yersinia, and Chlamydia. A 36-year-old man presented with circinate balanitis, urethral discharge, oligoarthralgia, conjunctivitis, lymphadenopathy, pharyngitis, and erythematous lesions on the palate. Culture examination showed presence of Neisseria gonorrhoeae and antibiotic treatment resulted in improvement of conjunctivitis and the lesions on the penis. However, severe oligoarthralgia, palatal erosions that increased in severity and size, and depilated areas on the tongue were observed. The definitive diagnosis was reactive arthritis. The prevalence of sexually transmitted infections is increasing, highlighting the need to increase awareness of associated risks such as reactive arthritis. Moreover, consideration of non-specific oral manifestations in a systemic context may aid in effective diagnosis and treatment, suggesting the need for multidisciplinary teams.


Assuntos
Artrite Reativa/patologia , Adulto , Artrite , Artrite Reativa/tratamento farmacológico , Artrite Reativa/microbiologia , Balanite (Inflamação)/microbiologia , Balanite (Inflamação)/patologia , Conjuntivite Bacteriana/microbiologia , Conjuntivite Bacteriana/patologia , Gonorreia/microbiologia , Humanos , Masculino , Doenças da Boca/microbiologia , Doenças da Boca/patologia , Neisseria gonorrhoeae/isolamento & purificação , Faringite/microbiologia , Faringite/patologia , Articulação Sacroilíaca/patologia , Doenças Bacterianas Sexualmente Transmissíveis/tratamento farmacológico , Doenças Bacterianas Sexualmente Transmissíveis/microbiologia , Doenças Bacterianas Sexualmente Transmissíveis/patologia , Dor de Ombro , Sexo sem Proteção , Doenças Uretrais/microbiologia
2.
Curr Genet ; 65(4): 965-980, 2019 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-30848345

RESUMO

Botcinic acid is a phytotoxic polyketide involved in the virulence of the gray mold fungus Botrytis cinerea. Here, we aimed to investigate the specific regulation of the cluster of Bcboa genes that is responsible for its biosynthesis. Our analysis showed that this cluster is located in a subtelomeric genomic region containing alternating G + C/A + T-balanced regions, and A + T-rich regions made from transposable elements that underwent RIP (Repeat-Induced Point mutation). Genetic analyses demonstrated that BcBoa13, a putative Zn2Cys6 transcription factor, is a nuclear protein with a major positive regulatory role on the expression of other Bcboa1-to-Bcboa12 genes, and botcinic acid production. In conclusion, the structure and the regulation of the botcinic acid gene cluster show similar features with the cluster responsible for the biosynthesis of the other known phytotoxin produced by B. cinerea, i.e., the sesquiterpene botrydial. Both clusters contain a gene encoding a pathway-specific Zn2Cys6 positive regulator, and both are surrounded by relics of transposons which raise some questions about the role of these repeated elements in the evolution and regulation of the secondary metabolism gene clusters in Botrytis.


Assuntos
Botrytis/genética , Doenças das Plantas/genética , Policetídeos/metabolismo , Fatores de Transcrição/genética , Elementos de DNA Transponíveis/genética , Regulação Fúngica da Expressão Gênica , Família Multigênica/genética , Doenças das Plantas/microbiologia , Mutação Puntual , Zinco/química
3.
Lasers Med Sci ; 34(7): 1325-1332, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-30707327

RESUMO

Sclerotherapy continues to be the treatment of choice for varicose veins in the legs. However, isolated treatment using microfoam or lasers requires a high number of sessions to eliminate them. In 2013, we published results about the efficacy and safety 3 years after the combined treatment with microfoam injections and subsequent application of Nd:YAG laser. The aim of this paper is to clinically evaluate the treatment of varices in a control visit after 5 years, when polidocanol microfoam is used and is immediately irradiated in the tissue with 1064-nm Nd:YAG laser beam. The outcome persistence after 5 years was studied in the legs that had received combined treatment and had been studied 3 years after treatment. Patients were contacted by phone, interviewed, and examined with echo-Doppler. Out of the 259 patients who were contacted, 221 agreed to make the appointment, although in the end, only 202 came, which meant analysing 404 legs. At 5 years, the clearance rates were very high: patients were included in class CEAP C1 showing vessels of from 0.5 to 3 mm diameter. The patients showed a high level of satisfaction. Regarding adverse effects, only 4 cases of hypopigmentation described in the previous publication persisted. Although the action mechanisms between the microfoam and the Nd:YAG laser must still be elucidated, it is notable that combining microfoam with laser exposure obtained a complete, effective treatment of legs in only 2 sessions, with high clearance rates and high level of satisfaction among patients.


Assuntos
Lasers de Estado Sólido , Perna (Membro)/patologia , Polidocanol/administração & dosagem , Polidocanol/uso terapêutico , Varizes/tratamento farmacológico , Varizes/cirurgia , Terapia Combinada , Feminino , Humanos , Lasers de Estado Sólido/efeitos adversos , Pessoa de Meia-Idade , Satisfação do Paciente , Polidocanol/efeitos adversos , Soluções Esclerosantes/uso terapêutico , Escleroterapia/efeitos adversos , Resultado do Tratamento
4.
Planta ; 247(4): 1001-1009, 2018 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-29340795

RESUMO

MAIN CONCLUSION: The phytotoxin botrydial triggers PA production in tomato cell suspensions via PLD and PLC/DGK activation. PLC/DGK-derived PA is partially required for botrydial-induced ROS generation. Phosphatidic acid (PA) is a phospholipid second messenger involved in the induction of plant defense responses. It is generated via two distinct enzymatic pathways, either via phospholipase D (PLD) or by the sequential action of phospholipase C and diacylglycerol kinase (PLC/DGK). Botrydial is a phytotoxic sesquiterpene generated by the necrotrophic fungus Botrytis cinerea that induces diverse plant defense responses, such as the production of reactive oxygen species (ROS). Here, we analyzed PA and ROS production and their interplay upon botrydial treatments, employing tomato (Solanum lycopersicum) cell suspensions as a model system. Botrydial induces PA production within minutes via PLD and PLC/DGK. Either inhibition of PLC or DGK diminishes ROS generation triggered by botrydial. This indicates that PLC/DGK is upstream of ROS production. In tomato, PLC is encoded by a multigene family constituted by SlPLC1-SlPLC6 and the pseudogene SlPLC7. We have shown that SlPLC2-silenced plants have reduced susceptibility to B. cinerea. In this work, we studied the role of SlPLC2 on botrydial-induced PA production by silencing the expression of SlPLC2 via a specific artificial microRNA. Upon botrydial treatments, SlPLC2-silenced-cell suspensions produce PA levels similar to wild-type cells. It can be concluded that PA is a novel component of the plant responses triggered by botrydial.


Assuntos
Aldeídos/farmacologia , Compostos Bicíclicos com Pontes/farmacologia , Ácidos Fosfatídicos/biossíntese , Solanum lycopersicum/efeitos dos fármacos , Botrytis/metabolismo , Células Cultivadas , Diacilglicerol Quinase/metabolismo , Solanum lycopersicum/metabolismo , Espécies Reativas de Oxigênio/metabolismo , Fosfolipases Tipo C/metabolismo
5.
Org Biomol Chem ; 16(16): 2955-2965, 2018 04 25.
Artigo em Inglês | MEDLINE | ID: mdl-29623313

RESUMO

The fungus Trichoderma arundinaceum (Ta37) has a significant biocontrol application which has been related to the production of the trichothecene, harzianum A (2). Previous studies with a strain of T. arundinaceum which was blocked for the production of 2, revealed the existence of a chemical cross-regulation between the biocontrol fungus and its target organism. A study of the secondary metabolome of a single culture of a mutant of T. arundinaceum TaΔTri4 which produces trichothecene biosynthetic intermediates, has now been carried out. The production of secondary metabolites in a co-culture with the phytopathogen, Botrytis cinerea, was then analyzed. The mutant produced a larger quantity of the aspinolides B (6) and C (7) and other derivatives when compared to the wild type Ta37. Ten new metabolites were isolated: three aspinolides 12-14, the γ-lactones 15 and 16, two hemi-ketals 17 and 18 and three aspinolide degradation products, 19, 21 and 22. In the confrontation cultures involving the TaΔTri4 and the B. cinerea B05.10 strains, there was a higher production of the aspinolides B and C by the TaΔTri4 mutant while the production of the botryanes and botcinins by B. cinerea was reduced in the area of interaction between the cultures. These results shed light on the chemical cross-talk and ecological interactions between these fungi.


Assuntos
Trichoderma/genética , Trichoderma/metabolismo , Tricotecenos/metabolismo , Botrytis/metabolismo , Técnicas de Cocultura , Genes Fúngicos , Metaboloma , Metabolismo Secundário , Deleção de Sequência
6.
Curr Microbiol ; 75(4): 431-440, 2018 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-29147762

RESUMO

Botrytis cinerea is considered a model organism for the study of plant-pathogen interaction showing great genetic diversity and a high degree of morphological variability depending on environmental conditions. The use of new compounds and plant-based elicitors may trigger the expression of different B. cinerea genes, providing new sources of virulence factors. This work is focused on elucidating the phenotypic effect in B. cinerea of different carbon sources such as glucose, cellulose and tomato cell walls (TCW). Production of botrydial and dihydrobotrydial toxins was evaluated using thin-layer chromatography (TLC), proton nuclear magnetic resonance spectroscopy (1H-NMR) and mass spectrometry (UPLC-HRESIMS). Expression of the toxin biosynthesis gene BcBOT2 was followed using RT-qPCR. Results show an inhibition of the toxin biosynthesis pathway when TCW are present as a sole carbon source, suggesting that the toxin is only produced when rich molecules, like glucose, are available for fungal metabolism. That suggests a connection between gene expression of virulence factors and environmental conditions, where the silent genes can be induced by different culture conditions.


Assuntos
Aldeídos/metabolismo , Botrytis/metabolismo , Compostos Bicíclicos com Pontes/metabolismo , Micotoxinas/metabolismo , Doenças das Plantas/microbiologia , Solanum lycopersicum/microbiologia , Botrytis/genética , Proteínas Fúngicas/genética , Proteínas Fúngicas/metabolismo , Regulação Fúngica da Expressão Gênica , Interações Hospedeiro-Patógeno
7.
Org Biomol Chem ; 15(25): 5357-5363, 2017 Jun 27.
Artigo em Inglês | MEDLINE | ID: mdl-28617493

RESUMO

Botrytis cinerea is a polyphagous fungal parasite which causes serious damage to more than 200 plant species and consequent economic losses for commercial crops. This pathogen produces two families of phytotoxins, the botryanes and botcinins, which are involved in the infection mechanism. The B. cinerea genome has provided a complete picture of the genes involved in the biosynthesis of its secondary metabolites. The botrydial biosynthetic gene cluster has been identified. This cluster consists of seven genes, where the genes BcBOT1, BcBOT3 and BcBOT4 encode three mono-oxygenases. A study of the Bcbot4Δ null mutant revealed that this mono-oxygenase was involved in the hydroxylation at C-4 of the probotryane skeleton (C-11 of the presilphiperfolane skeleton). A detailed study of the Bcbot4Δ null mutant has been undertaken in order to study the metabolic fate of the presilphiperfolan-8-ol intermediate biosynthesized by this organism and in particular by this strain. As a result three new presilphiperfolanes and three new cameroonanes have been identified. The results suggest that the absence of the oxygen function at C-11 of the presilphiperfolane skeleton permits rearrangement to a cameroonane whilst hydroxylation at C-11 precludes this rearrangement. It is possible that the interactions of the C-11 hydroxylated derivatives perturb the stereo-electronic requirements for the migration of the C-11:C-7 sigma bond to C-8.


Assuntos
Botrytis/metabolismo , Sesquiterpenos/metabolismo , Botrytis/genética , Cristalografia por Raios X , Modelos Moleculares , Conformação Molecular , Mutação , Sesquiterpenos/química
8.
Lasers Surg Med ; 49(4): 355-360, 2017 04.
Artigo em Inglês | MEDLINE | ID: mdl-27990665

RESUMO

BACKGROUND AND OBJECTIVE: Recently, the first diode laser with a wavelength of 755 nm for in-motion hair removal came on the market. The objective of this study was to check its efficacy, safety, and practicality under different options for its use. METHODS: A prospective study in a heterogeneous group of 56 patients who had hair removed from various areas of their bodies using three different treatment methods. Four sessions were scheduled in all cases, with a gap of 3 months between each session. Efficacy was assessed by counting of hairs per cm2 and the adverse effects in each session were recorded in detail in the patients' clinical histories. RESULTS: The three tested options achieved a significant reduction in the number of hairs (P < 0.0001). The average clearances achieved using the conventional method (HR), the in-motion method (SHR) and the stacking method were 75.5%, 70.1%, and 41.9%, respectively. The degree of satisfaction of the participants on a scale of 0-10 was 7.7, 8.1 and 6.8, respectively. Erythema and perifollicular edema, which are characteristic responses in laser hair removal, were observed. The incidence of burns was 1.33%. CONCLUSION: The 755-nm diode laser performed efficiently and safely in all the tested areas, using high total accumulated energy per surface unit. Based on our prior experience with other equipment, the results are promising. Lasers Surg. Med. 49:355-360, 2017. © 2016 Wiley Periodicals, Inc.


Assuntos
Remoção de Cabelo/instrumentação , Terapia a Laser , Lasers Semicondutores/uso terapêutico , Adolescente , Adulto , Feminino , Remoção de Cabelo/efeitos adversos , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Resultado do Tratamento , Adulto Jovem
9.
Fungal Genet Biol ; 96: 33-46, 2016 11.
Artigo em Inglês | MEDLINE | ID: mdl-27721016

RESUMO

Botrydial (BOT) is a non-host specific phytotoxin produced by the polyphagous phytopathogenic fungus Botrytis cinerea. The genomic region of the BOT biosynthetic gene cluster was investigated and revealed two additional genes named Bcbot6 and Bcbot7. Analysis revealed that the G+C/A+T-equilibrated regions that contain the Bcbot genes alternate with A+T-rich regions made of relics of transposable elements that have undergone repeat-induced point mutations (RIP). Furthermore, BcBot6, a Zn(II)2Cys6 putative transcription factor was identified as a nuclear protein and the major positive regulator of BOT biosynthesis. In addition, the phenotype of the ΔBcbot6 mutant indicated that BcBot6 and therefore BOT are dispensable for the development, pathogenicity and response to abiotic stresses in the B. cinerea strain B05.10. Finally, our data revealed that B. pseudocinerea, that is also polyphagous and lives in sympatry with B. cinerea, lacks the ability to produce BOT. Identification of BcBot6 as the major regulator of BOT synthesis is the first step towards a comprehensive understanding of the complete regulation network of BOT synthesis and of its ecological role in the B. cinerea life cycle.


Assuntos
Aldeídos/metabolismo , Botrytis/genética , Compostos Bicíclicos com Pontes/metabolismo , Proteínas Fúngicas/metabolismo , Regulação Fúngica da Expressão Gênica , Família Multigênica , Fatores de Transcrição/metabolismo , Sequência Rica em At , Botrytis/metabolismo , Botrytis/patogenicidade , Elementos de DNA Transponíveis , DNA Fúngico , Proteínas Fúngicas/genética , Proteínas Nucleares/genética , Proteínas Nucleares/metabolismo , Virulência
10.
Lasers Surg Med ; 47(2): 173-9, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25663083

RESUMO

INTRODUCTION: Hyperhidrosis is a debilitating problem that is not only uncomfortable and inconvenient, but also embarrassing in work and social situations. In spite of the availability of several options for the treatment of axillary hyperhidrosis, recently, there has been an increasing interest in the use of laser therapy. This study aims to evaluate the efficacy of a laser diode device emitting at wavelengths of 924 and 975 nm and classical curettage either alone, simultaneously or in combination. MATERIAL AND METHODS: A randomized prospective controlled trial was carried out on 100 patients divided into four groups, each with a different protocol: Laser alone at 975 nm (group 1), laser alone at 924/975 nm simultaneously (group 2), curettage alone (group 3), and finally laser at 924/975 nm followed by curettage (group 4). HDSS, starch test and GAIS were used to assess treatment efficacy. The follow-up extended to one year. Statistical analysis (SPSS) was used to determine the accuracy of the results. RESULT: Two patients of group 1 experienced burns during treatment, which took over a month to heal. This group of patients achieved the worst results: The starch test scale results after treatment were 2.48 ± 0.51 and 2.76 ± 0.44 (at 1 and 12 months). The GAIS results were 1.04 ± 0.35 and 0.92 ± 0.28 (1 and 12 months). In group 2 the starch test scale results after treatment were 1.36 ± 0.49 and 1.48 ± 0.51 (at 1 and 12 months). The GAIS results were 2.36 ± 0.49 and 2.72 ± 0.46 (at 1 and 12 months). In group 3, the starch test scale results after treatment were 1.56 ± 0.51 and 1.76 ± 0.60 (at 1 and 12 months), which corresponds to small to substantially smaller dark areas. The GAIS results were 2.28 ± 0.46 and 2.64 ± 0.49 (at 1 and 12 months). The best results were obtained in group 4: HDSS scores were reduced from 3.88 ± 0.33 before treatment to 1.24 ± 0.44 and 0.48 ± 0.51 at the 1 and 12 months controls. The starch test scale results after treatment were 0.40 ± 0.50 and 0.44 ± 0.51 (at 1 and 12 months). The GAIS results were 3.72 ± 0.54 and 3.76 ± 0.44 (at 1 and 12 months). CONCLUSION: In this study, the laser at 924/975 nm combined with curettage was determined to be the optimal treatment option of those tested for axillary hyperhidrosis. This treatment was safe, with few side effects and improvement that persisted to one year follow-up.


Assuntos
Hiperidrose/terapia , Terapia a Laser/métodos , Lasers Semicondutores/uso terapêutico , Axila , Terapia Combinada , Curetagem , Seguimentos , Humanos , Hiperidrose/diagnóstico , Estudos Prospectivos , Índice de Gravidade de Doença , Método Simples-Cego , Fatores de Tempo , Resultado do Tratamento
11.
J Cosmet Laser Ther ; 17(1): 31-6, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25286033

RESUMO

BACKGROUND: Since the first studies by Apfelberg in 1994 and the mathematical model of Mordon introduced in 2004, laser-assisted lipolysis (LAL) has been on the rise. In a previous study, we presented our results in patients treated with LAL for Rohrich type I to III aging neck. The average cervicomental angle decreased from 152.6 ± 5.9 to 123.6 ± 8.8 degrees after LAL. This demonstrated a systematic decrease in fat thickness, and improved skin tightening. OBJECTIVE: This new protocol focuses solely on LAL in the Rohrich type IV aging neck. METHODS: Between June 2012 and February 2013, a prospective study was performed on 10 patients treated with LAL for Rohrich type IV aging neck. The laser used in this study was a 1470 nm diode laser (Alma Lasers, Caesarea, Israel). Laser energy was transmitted through a 600 µm optical fiber and delivered in a continuous mode, at 15 W power. Previous mathematical modeling suggested that 0.1 kJ was required in order to destroy 1 ml of fat. Patients were asked to fill out a satisfaction questionnaire. The cervicomental angle was measured 6 months postoperatively, and compared with the preoperative values. RESULTS: No seromas were observed, but prolonged edema was observed in two patients. Pain during anesthesia and discomfort after the procedure were minimal. The average cervicomental angle decreased from 191.5 ± 5.7 to 164.9 ± 14.2 degrees (p < 0.01). This demonstrated a systematic decrease in fat thickness and improved skin tightening. Even though the cervicomental angle was higher than 140° in each case, the investigators, in agreement with the patients, decided to perform a complementary surgery with platysma muscle advancement and plication six months after LAL, in only two of the ten patients. This complementary surgery led to a mean cervicomental angle of 140.2 ± 11.4, and fair satisfaction of both patients and investigators. CONCLUSION: LAL alone appears insufficient for complete remodeling in Rohrich type IV aging neck. While LAL alone is sufficient for Grade I to III, a complementary surgery must be added for Grade IV.


Assuntos
Lasers Semicondutores/uso terapêutico , Lipectomia/métodos , Gordura Subcutânea/cirurgia , Idoso , Feminino , Humanos , Lasers Semicondutores/efeitos adversos , Lipectomia/efeitos adversos , Lipectomia/instrumentação , Pessoa de Meia-Idade , Pescoço/cirurgia , Dor Pós-Operatória/etiologia , Satisfação do Paciente , Reoperação
12.
Lasers Med Sci ; 30(3): 1053-9, 2015 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-25596934

RESUMO

Upper arm deformities secondary to weight loss or senile elastosis have led to an increased demand for aesthetic contouring procedures. We conducted this study to objectively assess if, in Teimourian low-grade upper arm remodelling, one session of laser-assisted lypolisis (LAL) could result in full patient satisfaction. Between 2011 and 2013, 45 patients were treated for unsightly fat arm Teimourian grade I (15 patients), grade IIa (15 patients) and grade IIb (15 patients) with one session of LAL. The laser used in this study was a 1470-nm diode laser (Alma Lasers, Cesarea, Israel) with the following parameters: continuous mode, 15 W power and transmission through a 600-µm optical fibre. Previous mathematical modelling suggested that 0.1 kJ was required in order to destroy 1 ml of fat. Treatment parameters and adverse effects were recorded.The arm circumference and skin pinch measurements were assessed pre and postoperatively. Patients were asked to file a satisfaction questionnaire. Pain during the anaesthesia and discomfort after the procedure were minimal. Complications included prolonged oedema in 11 patients. The average arm circumference decreased by 4.9 ± 0.4 cm in the right arm (p < 0.01) and 4.7 ± 0.5 cm in the left arm (p < 0.01) in grade I patients, 5.5 ± 0.6 cm in the right arm (p < 0.01) and 5.2 ± 0.5 cm in the left arm (p < 0.01) in grade IIa patients and 5.4 ± 0.5 cm in the right arm (p < 0.01) and 5.3 ± 0.5 cm in the left arm (p < 0.01) in grade IIB patients. The skin tightening effect was confirmed by the reduction of the skin calliper measurements in all three groups. Overall mean opinion of treatment was high for both patients and investigators. Of the 45 patients, all but one would recommend this treatment. A single session of LAL in upper arm remodelling for Teimourian grades I to IIb is a safe and reproducible technique. The procedure allows reduction in the amount of adipose deposits while providing full skin tightening.


Assuntos
Braço/cirurgia , Lasers Semicondutores , Lipectomia/métodos , Adulto , Feminino , Humanos , Lipólise/efeitos da radiação , Pessoa de Meia-Idade , Obesidade/cirurgia , Satisfação do Paciente , Período Pós-Operatório , Estudos Prospectivos
13.
J Cosmet Laser Ther ; 16(6): 284-9, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25065416

RESUMO

BACKGROUND: Since the first studies by Apfelberg in 1994 and the mathematical model by Mordon in 2004, laser lipolysis (LAL) has been on the rise. Laser lipolysis has the advantages of reduced operator fatigue, excellent patient tolerance, quick recovery time, as well as the additional benefit of dermal tightening. This article reports our experience with laser-assisted lipolysis (LAL) in submental and neck remodelling. METHODS: Between June 2010 and January 2013, a prospective study was performed on 30 patients treated for Rohrich type I to III aging neck, with LAL. The laser used in this study was a 980 nm diode laser (Quanta system, spa model D-plus, Solbate Olona (VA), Italy). Laser energy was transmitted through a 600 µm optical fiber and delivered in a continuous mode 15 W power. Previous mathematical modelling suggested that 0.1 kJ was required in order to destroy 1 ml of fat. Patients were asked to fill out a satisfaction questionnaire. The cervicomental angle was measured 6 months post-operatively and compared with the preoperative values. RESULTS: Other than three patients who developed mild hyperpigmentation that disappeared after 4 months, there were no complications in the series. Pain during the anaesthesia and discomfort after the procedure were minimal. The time taken to return to normal activities was 3.2 ± 1 days. All patients would strongly recommend this treatment. Overall satisfaction was high with both patients and investigators and was validated by decrease in cervicomental angle demonstrating a systematic decrease in fat thickness and improved skin tightening. CONCLUSION: LAL is a safe and reproducible technique for remodeling in Rohrich type I to III aging neck. The procedure allows for a reduction in the amount of adipose deposits while providing concurrent skin contraction.


Assuntos
Tecido Adiposo/cirurgia , Envelhecimento , Lasers Semicondutores/uso terapêutico , Lipectomia/métodos , Pescoço , Adulto , Idoso , Índice de Massa Corporal , Técnicas Cosméticas/instrumentação , Humanos , Lasers Semicondutores/efeitos adversos , Lipectomia/efeitos adversos , Pessoa de Meia-Idade , Satisfação do Paciente , Estudos Prospectivos
14.
Lasers Med Sci ; 29(1): 131-6, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-23471498

RESUMO

Cankles refer to the area where the calf and ankle meet. Unaesthetic fat cankles, where definition between the calf and ankle is impossible, are a frustrating aesthetic deformity, which are exacerbated by their genetic conditioning and special resistance to diet. This article reports our experience with laser-assisted lipolysis (LAL) in cankle remodelling. A total of 30 patients were treated for unaesthetic fat cankles with LAL. The 924/975-nm diode laser used in this study consisted of two lasers, one emitting at 924 nm, and the other at 975 nm. According to our mathematical models, we assumed that to destroy 1 ml of fat, 0.1 kJ was required in dual emission mode at 924/975 nm. Patients were asked to file a satisfaction questionnaire. Ultrasound was used to measure the fat thickness pre- and postoperatively. Oedema in both lateral sulcus of the Achilles tendon was seen in all patients. It subsided after 4 weeks in nine cases and 6 weeks in 21 cases. Only two patients developed mild hyperpigmentation that disappeared, respectively, after 4 and 10 weeks. Pain during the anaesthesia and discomfort after the procedure were low with this technique. Mean down time was 1.0 day. Of the 30 patients, 29 would recommend this treatment. Overall, high patient and investigator satisfaction was confirmed by the sonography used to measure decrease in fat thickness. LAL in cankle remodelling is a safe and reproducible technique that is particularly appreciated by the patient. The procedure allows homogenous reduction of fatty tissue together with skin tightening.


Assuntos
Tecido Adiposo/cirurgia , Tornozelo/cirurgia , Lasers Semicondutores/uso terapêutico , Perna (Membro)/cirurgia , Lipectomia/métodos , Tecido Adiposo/patologia , Adulto , Tornozelo/patologia , Feminino , Humanos , Lasers Semicondutores/efeitos adversos , Perna (Membro)/patologia , Lipectomia/efeitos adversos , Satisfação do Paciente , Estudos Prospectivos , Resultado do Tratamento , Adulto Jovem
15.
Chembiochem ; 14(1): 132-6, 2013 Jan 02.
Artigo em Inglês | MEDLINE | ID: mdl-23203902

RESUMO

Isotopic labelling experiments and the study of mutants with disrupted genes encoding botcinic acid have revealed a common link in the biosynthesis of the polyketide toxins excreted by Botrytis cinerea: botcinins and botrylactones. Furthermore, the results reported here shed light on the origin of the starter unit, thereby solving a long-standing mystery in the biosynthesis of botcinins.


Assuntos
Botrytis/genética , Botrytis/metabolismo , Deleção de Genes , Lactonas/metabolismo , Pironas/metabolismo , Lactonas/química
16.
Lasers Med Sci ; 28(3): 925-33, 2013 May.
Artigo em Inglês | MEDLINE | ID: mdl-22886138

RESUMO

Treatment of micro-veins of less than 1.5 mm with laser and with chemical sclerosis is technically challenging because of their difficulty to remedy. Laser treatment is even more difficult when dark phototypes are involved.Three groups of 30 patients each, skin type IV, and vessels measuring less than 1.5 mm in diameter, were enrolled for two treatment sessions 8 weeks apart: group A, polidocanol (POL) micro-foam injection; group B, Nd:YAG laser alone; and group C, laser after POL injection. Repeated 8-Hz low-fluence pulses, moving the hand piece over a 3-cm vein segment with an average of five laser passes maximum and with a total time irradiation of 1 s were used. Sixteen weeks after the second treatment, statistically, degree of clearance after examining photographs and patients satisfaction index, plotted on a visual analogue scale and comparing results of all three groups, results were significantly better for group C (p<0.0001). No significant differences in complications were noticed between the three groups. Efficacy of combining POL and laser proved safe and satisfactory in 96 % of patients using low-fluence laser pulses with a total cumulative energy in the 3 cm venous segment, lower than that of conventional treatment. Very few and transient complications were observed. POL foam injection followed by laser pulses is safe and efficient for vein treatment in dark-skinned patients.


Assuntos
Lasers de Estado Sólido/uso terapêutico , Polietilenoglicóis/administração & dosagem , Soluções Esclerosantes/administração & dosagem , Telangiectasia/cirurgia , Telangiectasia/terapia , Adulto , Terapia Combinada , Feminino , Humanos , Injeções Intravenosas , Perna (Membro) , Pessoa de Meia-Idade , Polidocanol , Estudos Prospectivos , Pigmentação da Pele , Telangiectasia/patologia , Adulto Jovem
17.
Aesthetic Plast Surg ; 37(2): 246-53, 2013 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-23354763

RESUMO

BACKGROUND: Laser technology provides the desired destruction of adipose tissue, hemostasis, and good skin retraction with a minimum of discomfort and a quick return to normal life for the patient. Here we present our experience with the use of laser-assisted liposuction (LAL) with a 924- and 975-nm laser diode and compare it with traditional liposuction alone. METHODS: A total of 430 patients were reviewed for this study. Three hundred thirty patients were treated with the 924- and 975-nm laser diode for laser lipolysis and 100 patients were treated with traditional liposuction of the anterior and inner thigh, the knee, the calf, and the trochanter. Patients were assessed by means of ultrasound. Pictures were taken and the degree of satisfaction was assessed. All complications were recorded. RESULTS: A total of 521 laser lipolysis procedures were performed at different areas: anterior thigh (86), inner thigh (122), trochanter (204), knee (67), and calf (42). The mean energy was area-dependent and evaluated in kJ: anterior thigh (15), inner thigh (14), trochanter (22), knee (5), and calf (4.5). The mean reduction of subcutaneous tissue with LAL in the anterior part of the thigh, the inner thigh, the calf, the knees, and the trochanter was 1.45, 1.9, 1.15, 1.2, and 3.6 cm, respectively. One hundred traditional liposuction procedures were performed for different areas: anterior thigh (27), inner thigh (38), trochanter (72), knee (21), and calf (12). The mean reduction of subcutaneous tissue in the anterior part of the thigh, the inner thigh, the calf, the knees, and the trochanter was 1.2, 1.6, 0.9, 0.6, and 3.2 cm, respectively. All patients who underwent LAL had superior satisfaction compared to those who had liposuction alone. CONCLUSION: Laser lipolysis with 924- and 975-nm diodes is adequate treatment for removal of adipose deposits and to obtain aesthetically good skin results, with a minimum of recovery time and high patient satisfaction. LEVEL OF EVIDENCE IV: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .


Assuntos
Terapia a Laser/métodos , Lasers Semicondutores , Lipectomia/métodos , Gordura Subcutânea/cirurgia , Adolescente , Adulto , Estética , Feminino , Humanos , Extremidade Inferior/cirurgia , Pessoa de Meia-Idade , Obesidade/cirurgia , Satisfação do Paciente/estatística & dados numéricos , Estudos Prospectivos , Medição de Risco , Resultado do Tratamento , Adulto Jovem
18.
Plants (Basel) ; 12(3)2023 Jan 26.
Artigo em Inglês | MEDLINE | ID: mdl-36771642

RESUMO

The ascomycete Botrytis cinerea Pers. Fr., classified within the family Sclerotiniaceae, is the agent that causes grey mould disease which infects at least 1400 plant species, including crops of economic importance such as grapes and strawberries. The life cycle of B. cinerea consists of two phases: asexual (anamorph, Botrytis cinerea Pers. Fr.) and sexual (teleomorph, Botryotinia fuckeliana (de Bary) Wetzel). During the XVI International Symposium dedicated to the Botrytis fungus, which was held in Bari in June 2013, the scientific community unanimously decided to assign the most widely used name of the asexual form, Botrytis, to this genus of fungi. However, in the literature, we continue to find articles referring to both morphic stages. In this review, we take stock of the genes and metabolites reported for both morphic forms of B. cinerea between January 2015 and October 2022.

19.
J Cosmet Laser Ther ; 14(2): 59-66, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-22372418

RESUMO

BACKGROUND: Unsightly fat knees are a frustrating aesthetic deformity exacerbated by genetic predisposition and resistance to diet. This article reports our experience with laser-assisted lipolysis (LAL) in knee remodelling. METHODS: A total of 30 patients were treated for unsightly fat knees with LAL. The 924/975-nm diode laser used in this study consists of two lasers, one emitting at 924 nm and another at 975 nm. Previous mathematical modelling suggested that 0.1 kJ was required in order to destroy 1 ml of fat, in dual emission mode at 924/975 nm. Patients were asked to fill out a satisfaction questionnaire. Ultrasound was used to measure the fat thickness pre-and post-operatively. RESULTS: Other than one patient who developed mild hyperpigmentation that disappeared after 2 months, there were no complications in the series. Pain during the anaesthesia and discomfort after the procedure were minimal. Return to normal activities never took longer than 2 days and mean downtime was 0.92 days. Of the 30 patients, 29 would recommend this treatment. Overall satisfaction was high with both patients and investigators and was validated by ultrasound measurements demonstrating a systematic decrease in fat thickness. CONCLUSION: LAL in knee remodelling is a safe and reproducible technique, particularly appreciated by patients. The procedure allows for a reduction in the amount of adipose deposits while providing concurrent skin contraction.


Assuntos
Tecido Adiposo/cirurgia , Joelho/cirurgia , Lasers Semicondutores/uso terapêutico , Lipectomia/métodos , Tecido Adiposo/diagnóstico por imagem , Adulto , Anestesia Local , Sedação Consciente , Estética , Feminino , Humanos , Midazolam , Pessoa de Meia-Idade , Satisfação do Paciente , Resultado do Tratamento , Ultrassonografia , Adulto Jovem
20.
Rev Chilena Infectol ; 39(2): 117-125, 2022 04.
Artigo em Espanhol | MEDLINE | ID: mdl-35856983

RESUMO

BACKGROUND: In Chile, cervical cancer is the second leading cause of death from malignancy in women. The main causal agent of cervical cancer is the human papillomavirus (HPV). Compared with the general population, sex workers (SW) are at increased risk of acquiring HPV. AIM: To analyze the prevalence and genotypes of cervical and vaginal HPV in female SW attending a Sexual Control Centre. METHODS: A cross-sectional study was carried out on 97 women (19-70 years old). Two samples were taken per patient, one from exocervix and the other from vaginal walls. HPV DNA. was identified by polymerase chain reaction (PCR) and genotyping using specific probes for 32 types of HPV. RESULTS: The overall frequency of HPV was 45%, 41.2% in cervical carrier and 36.1% in vaginal carrier, 32% were co-infected, 63% of HPV were high-risk genotypes. The most frequent high-risk HPV was HPV 66 (12%), HPV 58 (9.3%), followed by HPV 16, HPV 59 and HPV 82 with the same frequency (8% each one). Thirty two (43%) of females were infected with multiple genotypes. CONCLUSION: HPV is frequent infection among SW. This is the first study in Chile on the prevalence and genotypes of HPV in sex workers.


Assuntos
Alphapapillomavirus , Infecções por Papillomavirus , Profissionais do Sexo , Neoplasias do Colo do Útero , Adulto , Idoso , Alphapapillomavirus/genética , Chile/epidemiologia , Estudos Transversais , DNA Viral/análise , DNA Viral/genética , Feminino , Genótipo , Humanos , Pessoa de Meia-Idade , Papillomaviridae/genética , Infecções por Papillomavirus/epidemiologia , Prevalência , Neoplasias do Colo do Útero/epidemiologia , Neoplasias do Colo do Útero/patologia , Adulto Jovem
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