Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 47
Filtrar
1.
J Cosmet Dermatol ; 23(3): 970-977, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-37947204

RESUMO

BACKGROUND: Surgical excision combined with radiotherapy is considered an effective treatment for keloids, while the efficacy and safety of this regimen for huge keloids in patients who need reconstruction after excision is still unclear. Therefore, this study aimed to evaluate the efficacy and safety of surgical excision and reconstruction combined with radiotherapy for huge keloids in a single center with 13 years of experience. METHODS: All consecutive patients with huge keloids who underwent surgical excision and reconstruction combined with radiotherapy were identified. Demographic information, prior interventions for keloids, parameters and complications, and recurrence rates were documented. RESULTS: Twenty-one patients (10 males; mean age, 43.19 ± 18.15 years) were included, 14 patients reconstructed with z-plasties, 5 with skin grafts, and 2 with skin flaps. During a mean follow-up of 75 months, one patient developed local necrosis without the need for revision surgery and two patients developed temporary hyperpigmentation. Two patients with the z-plasties suffered partial keloids recurrence, which was healed with corticosteroid injection. No wound infection, hematoma, telangiectasia, or new keloids at donor sites were observed. The overall appearance of reconstructed defects was aesthetically acceptable. CONCLUSION: Surgical excision and reconstruction combined with radiotherapy may be safe and effective for huge keloids.


Assuntos
Queloide , Masculino , Humanos , Adulto , Pessoa de Meia-Idade , Queloide/etiologia , Queloide/radioterapia , Queloide/cirurgia , Transplante de Pele/efeitos adversos , Resultado do Tratamento , Retalhos Cirúrgicos/efeitos adversos , Recidiva
2.
Plant Biotechnol J ; 22(1): 131-147, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37703500

RESUMO

Glycine-rich RNA-binding proteins (GRPs) have been implicated in the responses of plants to environmental stresses, but the function of GRP genes involved in salt stress and the underlying mechanism remain unclear. In this study, we identified BpGRP1 (glycine-rich RNA-binding protein), a Betula platyphylla gene that is induced under salt stress. The physiological and molecular responses to salt tolerance were investigated in both BpGRP1-overexpressing and suppressed conditions. BpGRF3 (growth-regulating factor 3) was identified as a regulatory factor upstream of BpGRP1. We demonstrated that overexpression of BpGRF3 significantly increased the salt tolerance of birch, whereas the grf3-1 mutant exhibited the opposite effect. Further analysis revealed that BpGRF3 and its interaction partner, BpSHMT, function upstream of BpGRP1. We demonstrated that BpmiR396c, as an upstream regulator of BpGRF3, could negatively regulate salt tolerance in birch. Furthermore, we uncovered evidence showing that the BpmiR396c/BpGRF3 regulatory module functions in mediating the salt response by regulating the associated physiological pathways. Our results indicate that BpmiR396c regulates the expression of BpGRF3, which plays a role in salt tolerance by targeting BpGRP1.


Assuntos
Betula , Tolerância ao Sal , Tolerância ao Sal/genética , Betula/genética , Betula/metabolismo , Estresse Fisiológico/genética , Glicina , Regulação da Expressão Gênica de Plantas/genética , Plantas Geneticamente Modificadas/genética , Plantas Geneticamente Modificadas/metabolismo , Proteínas de Plantas/metabolismo
3.
Aesthetic Plast Surg ; 48(6): 1111-1117, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-37438661

RESUMO

BACKGROUND: There has been no previous study on the availability of different glucocorticoid varieties used in the multimodal cocktail for harvesting autologous costal cartilage. This randomized controlled trial (RCT) was to compare the significance and complications of betamethasone and triamcinolone acetonide as a component of the cocktail for harvesting costal cartilage in patients. MATERIALS AND METHODS: The patients were randomized to two groups. The group A used multimodal cocktail: ropivacaine, parecoxib sodium, epinephrine, and triamcinolone acetonide; group B used multimodal cocktail: ropivacaine, parecoxib sodium, epinephrine, and betamethasone. The primary outcomes were chest pain after surgery evaluated with a visual analog scale (VAS). The secondary outcomes evaluated the quality of recovery. The tertiary outcomes included rescue analgesic consumption, the first feeding time and the time to the first ambulation, and duration of hospital stay. RESULTS: The VAS scores between the two groups was not considered clinically significant, but the groups achieved a VAS score of 3 or less. However, the time until the first rescue analgesia and the number were significantly longer and smaller for group A. Additionally, there were no significant differences between the two groups in the duration of hospital stay, first feeding time, the quality of recovery, and the first ambulation time. CONCLUSION: Adding corticosteroids into the multimodal cocktails could improve pain relief after costal cartilage harvest. And the efficacy of Triamcinolone acetonide was better than betamethasone. LEVEL OF EVIDENCE II: 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
Cartilagem Costal , Triancinolona Acetonida , Humanos , Betametasona , Ropivacaina , Epinefrina , Dor no Peito , Dor Pós-Operatória , Método Duplo-Cego
4.
Tree Physiol ; 44(1)2024 02 06.
Artigo em Inglês | MEDLINE | ID: mdl-38145489

RESUMO

The microRNAs, which are small RNAs of 18-25 nt in length, act as key regulatory factors in posttranscriptional gene expression during plant growth and development. However, little is known about their regulatory roles in response to stressful environments in birch (Betula platyphylla). Here, we characterized and further explored miRNAs from osmotic- and salt-stressed birch. Our analysis revealed a total of 190 microRNA (miRNA) sequences, which were classified into 180 conserved miRNAs and 10 predicted novel miRNAs based on sequence homology. Furthermore, we identified Bp-miR408a under osmotic and salt stress and elucidated its role in osmotic and salt stress responses in birch. Notably, under osmotic and salt stress, Bp-miR408a contributed to osmotic and salt tolerance sensitivity by mediating various physiological changes, such as increases in reactive oxygen species accumulation, osmoregulatory substance contents and Na+ accumulation. Additionally, molecular analysis provided evidence of the in vivo targeting of BpBCP1 (blue copper protein) transcripts by Bp-miR408a. The overexpression of BpBCP1 in birch enhanced osmotic and salt tolerance by increasing the antioxidant enzyme activity, maintaining cellular ion homeostasis and decreasing lipid peroxidation and cell death. Thus, we reveal a Bp-miR408a-BpBCP1 regulatory module that mediates osmotic and salt stress responses in birch.


Assuntos
MicroRNAs , Estresse Salino , Betula/fisiologia , Tolerância ao Sal/genética , MicroRNAs/genética , MicroRNAs/metabolismo , Estresse Fisiológico/genética , Regulação da Expressão Gênica de Plantas , Pressão Osmótica/fisiologia
5.
BMC Pediatr ; 23(1): 535, 2023 10 27.
Artigo em Inglês | MEDLINE | ID: mdl-37891511

RESUMO

BACKGROUND: Multifaceted non-pharmaceutical interventions during the COVID-19 pandemic have not only reduced the transmission of SARS-CoV2, but have had an effect on the prevalence of other pathogens. This retrospective study aimed to compare and analyze the changes of respiratory pathogens in hospitalized children with community-acquired pneumonia. METHODS: From January 2019 to December 2020, children with community-acquired pneumonia were selected from the Department of Respiratory Medicine, Shanghai Children's Medical Center. On the first day of hospitalization, sputum, throat swabs, venous blood samples from them were collected for detection of pathogens. RESULTS: A total of 2596 children with community-acquired pneumonia were enrolled, including 1871 patients in 2019 and 725 in 2020. The detection rate in 2020 was lower than in 2019, whether single or multiple pathogens. Compared with 2019, the detection rate of virus, especially parainfluenza virus, influenza virus and respiratory syncytial virus, all decreased in 2020. On the contrary, the prevalence of human rhinovirus was much higher than that in 2019. In addition, the positivity rate for bacteria did not change much over the two years, which seemed to be less affected by COVID-19. And Mycoplasma pneumoniae which broke out in 2019 has been in low prevalence since March 2020 even following the reopening of school. CONCLUSIONS: Strict public health interventions for COVID-19 in China have effectively suppressed the spread of not only SARS-CoV2 but parainfluenza virus, influenza virus and Mycoplasma pneumonia as well. However, it had a much more limited effect on bacteria and rhinovirus. Therefore, more epidemiological surveillance of respiratory pathogens will help improve early preventive measures.


Assuntos
COVID-19 , Infecções por Paramyxoviridae , Infecções Respiratórias , Humanos , Criança , Lactente , COVID-19/epidemiologia , Infecções Respiratórias/epidemiologia , Pandemias , Estudos Retrospectivos , RNA Viral , China/epidemiologia , SARS-CoV-2 , Bactérias/genética , Mycoplasma pneumoniae , Infecções por Paramyxoviridae/epidemiologia
6.
Sci Total Environ ; 884: 163889, 2023 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-37142042

RESUMO

Salinity and heavy metal pollution seriously affect plant growth. Tamarix hispida (T. hispida) has the potential to remediate soil saline-alkali and heavy metal pollution. In this study, the response mechanisms of T. hispida under NaCl, CdCl2 (Cd) and combined CdCl2 and NaCl (Cd-NaCl) stresses were explored. Overall, the antioxidant system showed changes under the three stresses. The addition of NaCl inhibited the absorption of Cd2+. However, there were obvious differences in the transcripts and metabolites identified among the three stress responses. Interestingly, the number of DEGs was greatest under NaCl stress (929), but the number of differentially expressed metabolites (DEMs) was lowest (48), with 143 and 187 DEMs identified under Cd and Cd-NaCl stress, respectively. It is worth noting that both DEGs and DEMs were enriched in the linoleic acid metabolism pathway under Cd stress. In particular, the content of lipids changed significantly under Cd and Cd-NaCl stress, suggesting that maintaining normal lipid synthesis and metabolism may be an important way to improve the Cd tolerance of T. hispida. Flavonoids may also play an important role in the response to NaCl and Cd stress. These results provide a theoretical basis for cultivating plants with improved salt and cadmium repair abilities.


Assuntos
Tamaricaceae , Transcriptoma , Cádmio/toxicidade , Cádmio/metabolismo , Cloreto de Sódio/metabolismo , Perfilação da Expressão Gênica
7.
Food Environ Virol ; 15(2): 107-115, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-37067719

RESUMO

This study aimed to investigate the effect of different environmental disinfection methods on reducing contaminated surfaces (CSs) by the Omicron BA.2.2 variant of SARS-CoV-2 in the fever clinic between March 20 and May 30, 2022, and to analyze the influences and related factors of CSs. This study includes survey data from 389 positive patients (SPPs) and 204 CSs in the fever clinic, including the CS type, disinfection method, length of time spent in the clinic, cycle threshold (CT) value, name, age, weight, mask type, mask-wearing compliance, hand-mouth touch frequency and sex. Associations between study variables and specified outcomes were explored using univariate regression analyses. Mask-wearing compliance had a significant negative correlation with CSs (r = - 0.446, P = 0.037). Among the 389 SPPs, 22 SPPs (CRP, 5.66%) caused CSs in the separate isolation room. A total of 219 SPPs (56.30%) were male. The mean age of SPPs was 4.34 ± 3.92 years old, and the mean CT value was 12.44 ± 5.11. In total, 9952 samples with exposure history were taken, including 204 (2.05%) CSs. Among the CSs, the positive rate of flat surfaces was the highest in public areas (2.52%) and separate isolation rooms (4.75%). Disinfection methods of ultraviolet radiation + chemical irradiation significantly reduced the CSs in both the public area (0% vs. 4.56%) and the separate isolation room (0.76% vs. 2.64%) compared with the chemical method alone (P < 0.05). Compared with ordinary SPPs, CRPs were older (6.04 year vs. 4.23 year), and the male proportion was higher (72.73% vs. 55.31%). In particular, it was found that SPPs contaminated their surroundings and therefore imposed risks on other people. Environmental disinfection with ultraviolet radiation + chemical treatment should be emphasized. The findings may be useful to guide infection control practices for the Omicron BA.2.2 variant of SARS-CoV-2.


Assuntos
COVID-19 , SARS-CoV-2 , Humanos , Masculino , Lactente , Pré-Escolar , Criança , Feminino , Desinfecção , Fômites , Raios Ultravioleta , China
8.
Plant Physiol Biochem ; 198: 107676, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-37060866

RESUMO

The basic leucine zipper (bZIP) gene, which plays a significant role in the regulation of tolerance to biotic/abiotic stresses, has been characterized in many plant species. Betula platyphylla is a significant afforestation species. To elucidate the stress resistance mechanism of birch, previous studies identified some stress resistance genes. However, the genome-wide identification and characterization of bZIP gene family in the birch have not been reported. Here, the 56 BpbZIP genes were identified and classified into 13 groups in birch. Cis-element analysis showed that the promoters of 56 family genes contained 108 elements, of which 16 were shared by 13 groups. There were 8 pairs of fragment repeats and 1 pair of tandem repeats, indicating that duplication may be the major reason for the amplification of the BpbZIP gene family. Tissue-specific of BpbZIP genes showed 18 genes with the highest expression in roots, 15 in flowers, 11 in xylem and 9 in leaves. In addition, five differentially expressed bZIP genes were identified from the RNA-seq data of birch under low-temperature stress, and the co-expressed differentially expressed genes were further screened. The analysis of gene ontology (GO) enrichment of each co-expression regulatory network showed that they were related to membrane lipids and cell walls. Furthermore, the transient overexpression of BpChr04G00610 decreased the ROS scavenging ability of birch under low-temperature stress, suggesting that it may be more sensitive to low-temperature. In conclusion, this study provides a basis for the study of the function of BpbZIP genes.


Assuntos
Betula , Perfilação da Expressão Gênica , Temperatura , Betula/genética , Estresse Fisiológico/genética , Regulação da Expressão Gênica de Plantas , Filogenia , Proteínas de Plantas/genética , Proteínas de Plantas/metabolismo
9.
Heliyon ; 9(2): e13656, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36865463

RESUMO

Background: Autologous costal cartilage is widely used as nasal augmentation or nasal reconstruction material. However, no study has focused on the mechanical difference between no calcified costal cartilage and extensive calcified costal cartilage at present. Our study aims to study the loading behavior of calcified costal cartilage under tensile and compressive stress. Method: Human costal cartilage specimen was obtained from five extensive calcified costal cartilage patients and classified into four groups (group A: no calcified costal cartilage; group B: calcified costal cartilage; group C: no calcified costal cartilage after transplantation in BALB/c nude mice for half a year; group D: calcified costal cartilage after transplantation in BALB/c nude mice for half a year). Young's modulus, stress relaxation slope, and relaxation amount were analyzed through tensile and compressive tests using a material testing machine. Results: We included five female patients with extensive calcified costal cartilage. Group B exhibited significantly higher Young's modulus in both the tensile and compressive tests (p < 0.05 in tensile test, p < 0.01 in compressive test), higher relaxation slope (P < 0.01) and higher relaxation amount (p < 0.05 in compression test). After transplantation, the Young's modulus of calcified and non-calcified costal cartilage decreased, except that the calcified costal cartilage increased slightly in the tensile test. The final relaxation slope and relaxation amount had increased at different degrees, but the changes did not change significantly before and after transplantation (P > 0.05). Conclusion: Our results showed that the stiffness of calcified cartilage would increase 30.06% under tension and 126.31% under compression. This study may provide new insights to researchers focusing on extensive calcified costal cartilage can be used for autologous graft material.

10.
Int Wound J ; 20(6): 2224-2232, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-36751857

RESUMO

Ulcer in radiation-damaged tissue is a dilemma with limited treatment strategies. The study aimed to evaluate the safety and efficacy of regional flaps for patients with post-radiation ulcers through a 10-year experience. A retrospective study of consecutive patients with post-radiation ulcers at a single institute from 2012 to 2022 was conducted. Reconstruction included complete excision of irradiated tissue and coverage with well-vascularised tissue, including local flaps, regional flaps and free flaps. Study outcomes included complications, reoperation rates, overall flap success and recurrence rates. Thirteen patients (six males and seven females; mean age, 56.85 ± 13.87 years) with a mean 10-month history of post-radiation ulcers were enrolled. Ulcers are predominantly located in the chest (n = 3, 23.1%), head (n = 2, 15.4%) and neck (n = 2, 15.4%), with a mean size of 33.1 cm2 (range from 1 cm2 to 120 cm2 ). Eleven patients underwent reconstruction with 15 regional flaps and three local flaps, one patient received a free anterolateral thigh fasciocutaneous flap and one patient underwent amputation. Among these 15 regional flaps, one (6.7%) had wound dehiscence and four (26.7%) had localised necrosis requiring reoperation. In addition, one patient with a non-healing sinus tract underwent reoperation. The overall success rate of the regional flap was 100% and no recurrence was observed with a mean follow-up of 23.3 months. Regional flaps seem a safe and effective reconstructive method for post-radiation ulcers.


Assuntos
Retalhos de Tecido Biológico , Procedimentos de Cirurgia Plástica , Radiodermite , Úlcera Cutânea , Masculino , Feminino , Humanos , Adulto , Pessoa de Meia-Idade , Idoso , Úlcera , Estudos Retrospectivos , Resultado do Tratamento
11.
Aesthet Surg J ; 43(3): NP143-NP154, 2023 02 21.
Artigo em Inglês | MEDLINE | ID: mdl-36228086

RESUMO

BACKGROUND: Historically, research of diced cartilage for rhinoplasty has mainly explored the efficacy of wrapped materials, with few studies dedicated to various sizes of diced cartilage. OBJECTIVES: The authors of this study sought to evaluate the viability and stability of various-sized free diced cartilage. METHODS: The remaining costal cartilage was harvested during rhinoplasties and implanted into subcutaneous pockets on the backs of nude mice: shaved cartilage (group A, n = 8), diced cartilage with a diameter <0.5 mm (group B, n = 8), 0.5 to 1.0 mm (group C, n = 8), and 1.0 to 1.5 mm (group D, n = 8). After 12 weeks, weight and volume retention rates, histopathological examinations, and biomechanical properties were evaluated. RESULTS: Cartilage grafts in groups A and B showed an obvious loss of contour and severe dispersion. The weight and volume of cartilage graft in group A were significantly decreased (all P < 0.05). Although there was no significant difference, group D (122.8 ± 15.4%) achieved the highest weight retention rate compared with groups B and C (114.6 ± 7.1% and 114.3 ± 10.1%, respectively). Group A showed the most apparent chondrocyte nucleus loss with the least peripheral proliferation, and group D showed the best regeneration potential (all P < 0.05). Group C achieved less chondrocyte nucleus loss than group B (P < 0.05). The compressive elastic modulus increased with the diameter of diced cartilage (all P < 0.05). CONCLUSIONS: Diced cartilage with a diameter of 1.0 to 1.5 mm may have the highest viability and stability, followed by those of 0.5 to 1.0 mm and <0.5 mm.


Assuntos
Cartilagem , Rinoplastia , Animais , Camundongos , Camundongos Nus , Cartilagem/transplante , Módulo de Elasticidade , Sobrevivência de Enxerto
12.
Plant Sci ; 326: 111502, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36252856

RESUMO

Growth-regulating factor (GRF) is a transcription factor unique to plants that plays a crucial role in the growth, development and stress adaptation of plants. However, information on the GRFs related to salt stress in Populus davidiana × P. bolleana is lacking. In this study, we characterized the activity of PdbGRF1 in transgenic Populus davidiana × P. bolleana under salt stress. qRTPCR analyses showed that PdbGRF1 was highly expressed in young leaves and that the pattern of PdbGRF1 expression was significantly changed at most time points under salt stress, which suggests that PdbGRF1 expression may be related to the salt stress response. Moreover, PdbGRF1 overexpression enhanced tolerance to salt stress. A physiological parameter analysis showed that the overexpression of PdbGRF1 significantly decreased the contents of hydrogen peroxide (H2O2) and malondialdehyde (MDA) and increased the activities of antioxidant enzymes (SOD and POD) and the proline content. A molecular analysis showed that PdbGRF1 regulated the expression of PdbPOD17 and PdbAKT1 by binding to the DRE ('A/GCCGAC') in their respective promoters. Together, our results demonstrate that the binding of PdbGRF1 to DRE regulates genes related to stress tolerance and activates the associated physiological pathways, and these effects increase the ROS scavenging ability, reduce the degree of damage to the plasma membrane and ultimately enhance the salt stress response in Populus davidiana × P. bolleana.


Assuntos
Populus , Populus/metabolismo , Regulação da Expressão Gênica de Plantas , Peróxido de Hidrogênio/metabolismo , Plantas Geneticamente Modificadas/genética , Estresse Salino , Estresse Fisiológico/genética , Proteínas de Plantas/genética , Proteínas de Plantas/metabolismo
13.
Br J Neurosurg ; 37(5): 1046-1051, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-33245247

RESUMO

OBJECTIVE: To evaluate the safety and efficacy of modified facet joint fusion (MFF) for the treatment of multilevel (three-level or more) lumbar spinal stenosis (LSS). PATIENTS AND METHODS: In this retrospective study, 135 consecutive patients who underwent initial MFF for multilevel LSS were included. Clinical outcomes included fusion rate, change of visual analogue scale pain scores for low back pain (VAS-LBP) and leg pain (VAS-LP), Japanese Orthopedic Association scores (JOA), Oswestry Disability Index (ODI) and MacNab classification before and after MFF. The complications were also analyzed. RESULTS: The fusion rates were 46.7% (63/135) at 6-month and 89.6% (121/135) at 1-year. The mean VAS-LBP, VAS-LP, and ODI significantly decreased from 5.2 ± 0.6, 5.7 ± 0.8 and 65 ± 7.9 to 1.58 ± 0.4, 0.58 ± 0.3 and 20.8 ± 5.8, respectively (all p < 0.001). The mean JOA markedly improved from 10.0 ± 1.3 to 26.1 ± 1.5 (p < 0.001). Excellent/good results of MacNab classification were achieved in 88.9% (120/135) of the patients. The overall rate of complications after MFF was 5.9%, including poor wound healing (2.2%), calf muscular venous thrombosis (0.74%), deep venous thrombosis (0.74%), superficial wound infection (1.48%), transient foot drop (0.74%). All the complications were transient and improved without prolonged hospital stay and sequelae. CONCLUSION: MFF may be safe and efficient for multilevel LSS with high fusion rate and significant symptom relief, which is worthy of further study.


Assuntos
Dor Lombar , Fusão Vertebral , Estenose Espinal , Articulação Zigapofisária , Humanos , Estenose Espinal/cirurgia , Estenose Espinal/etiologia , Estudos Retrospectivos , Descompressão Cirúrgica/efeitos adversos , Articulação Zigapofisária/cirurgia , Vértebras Lombares/cirurgia , Dor Lombar/etiologia , Dor Lombar/cirurgia , Fusão Vertebral/efeitos adversos , Resultado do Tratamento
14.
J Craniofac Surg ; 34(2): 503-510, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-35996212

RESUMO

BACKGROUND: Diced cartilage wrapped in blood products has been increasingly advocated in rhinoplasty. The complication is a major concern of the procedure. This meta-analysis aims to assess the complication rates and revision rate of this procedure. METHODS: All original articles published up to March 2022 were searched through PubMed, Embase, and Web of Science databases. Additional articles were added through reference searching. Articles were included for meta-analysis according to inclusion criteria. Data were extracted by 2 individuals independently and the analysis was conducted through Stata 12.0 software (StataCorp., College Station, Texas). RESULTS: A total of 559 articles were initially found and an additional 1 article was added through reference searching. A total of 11 articles including 469 patients were included for meta-analysis. The results indicated that the total complication rates were 1.2% for irregularity, 0.2% for visibility, 0.7% for deviation, 1% for erythema, and 0% for graft resorption, depression, and infection. The revision rate was 1.2%. CONCLUSIONS: The overall complication and revision rates of diced cartilage wrapped in blood products in rhinoplasty were relatively low. Considering the limited number of related studies, a larger sample size, long-term follow-up, clear diagnostic criteria, and detailed methods of measurement are expected in further research.


Assuntos
Rinoplastia , Humanos , Rinoplastia/métodos , Fáscia/transplante , Cartilagem/transplante , Transplante Autólogo , Texas
17.
Ann Palliat Med ; 11(8): 2668-2675, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-35815453

RESUMO

BACKGROUND: There was few research on the causes or factors of costal cartilage calcification. Thus, this study aimed to develop a nomogram to predict the possibility of severe costal cartilage calcification. METHODS: The cohort study included 882 patients who underwent computed tomographic (CT) scan of the chest with three-dimensional reconstructions and have completed the questionnaire between June 2020 to October 2021. The potential variables were included age, sex, body mass index (BMI), nation, residence, smoking, drinking, bedtime, exercise, self-pressure, the frequencies of milk, yogurt, carbonated drink, meat, fish, sea food, fruits intake, hypertension, diabetes, thyroid or parathyroid disease and osteoarthritis. We used the least absolute shrinkage and selection operator (LASSO) regression model to identify the optimal predictive features. Multivariable logistic regression analysis was used to build the predicting model. The receiver operating characteristic (ROC) curve and concordance index (C-index) were used to evaluate the accuracy of the nomogram. Moreover, decision curve analysis (DCA) was to estimate the clinical usefulness of the nomogram. Finally, we adopted internal validation of enhanced bootstrap adjustment for optimism to predict the C-index of the model. RESULTS: The predictive nomogram contained 11 clinical features using LASSO regression, and "Sex" and "Age" were the most important factor due to the most significant proportion. The model showed good discrimination with a C-index of 0.805, and the internal validation was 0.735. DCA (the threshold probability of a patient is 1-77%) and the ROC curve [the area under ROC (AUC) was 0.805, and the sensitivity and specificity were 0.647 and 0.894] demonstrated that the nomogram was possibly clinically helpful. CONCLUSIONS: This is the first study to develop a nomogram to predict severe costal cartilage. Use of this nomogram might help patients prevent calcification by changing living habits.


Assuntos
Cartilagem Costal , Nomogramas , Estudos de Coortes , Humanos , Curva ROC , Glândula Tireoide
18.
Nutrients ; 14(14)2022 Jul 20.
Artigo em Inglês | MEDLINE | ID: mdl-35889925

RESUMO

(1) Background: The relationship between obesity and asthma is still uncertain. This study aimed to investigate the effect of overweight/obesity on the pulmonary function of patients with new-onset pediatric asthma and explore the possible causative factors related to concomitant obesity and asthma. (2) Methods: Patients aged 5 to 17 years old with newly diagnosed mild to moderate asthma were recruited from June 2018 to May 2019, from a respiratory clinic in Shanghai, China. Participants were categorized into three groups: normal weight, overweight, and obese asthma. A family history of atopy and patients' personal allergic diseases were recorded. Pulmonary function, fractional exhaled nitric oxide (FeNO), eosinophils, serum-specific immunoglobulins E (sIgE), serum total IgE (tIgE), and serum inflammatory biomarkers (adiponectin, leptin, Type 1 helper T, and Type 2 helper T cytokines) were tested in all participants. (3) Results: A total of 407 asthma patients (197 normal weight, 92 overweight, and 118 obese) were enrolled. There was a reduction in forced expiratory volume in the first second (FEV1)/forced vital capacity (FVC), FEV1/FVC%, and FEF25-75% in the overweight/obese groups. No difference was found between the study groups in the main allergy characteristics. Leptin levels were higher while adiponectin was lower in asthmatics with obesity. Higher levels of IL-16 were found in overweight/obese asthmatic individuals than in normal-weight individuals. (4) Conclusions: Obesity may have an effect on impaired pulmonary function. While atopic inflammation plays an important role in the onset of asthma, nonatopic inflammation (including leptin and adiponectin) increases the severity of asthma in overweight/obese patients. The significance of different levels of IL-16 between groups needs to be further studied.


Assuntos
Asma , Hipersensibilidade Imediata , Adiponectina , Adiposidade , Adolescente , Biomarcadores , Criança , Pré-Escolar , China , Volume Expiratório Forçado , Humanos , Inflamação/complicações , Interleucina-16 , Leptina , Obesidade/complicações , Sobrepeso/complicações
19.
Aesthetic Plast Surg ; 46(5): 2378-2386, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-35577970

RESUMO

BACKGROUND: Reconstructing a well-defined nasal tip is a big challenge for East Asian patients, especially with nasal tip irregularities or short noses in revision rhinoplasty. This study aims to report our experience with a modified large-cap graft for improving the contour of the nasal tip in revision rhinoplasty. METHODS: A retrospective review was conducted for 91 patients (81 females, 10 males; mean age, 26.8 ± 6.7 years) who underwent revision rhinoplasty with a modified large-cap graft. The rhinoplasty outcome evaluation (ROE) was used for investigating patient satisfaction. The aesthetic outcomes were assessed by preoperative and postoperative photographs by two blinded plastic surgeons using the Independent Rhinoplasty Outcome Score. RESULTS: Most patients reported satisfactory aesthetic outcomes with overall ROE score increasing from preoperative 11.66 ± 3.98 to postoperative 17.30 ± 5.03 (p < 0.001). The doctors' evaluations on the improved contour of the nose rendered an overall score of 3.77 ± 0.42. The complication rate was 3.3% (pleural tear, 1.1%; hypertrophic scar, 2.2%) at the donor site, and 7.7% at the recipient site (warping, 3.3%; extrusion, 1.1%; deviation, 2.2%; infection, 1.1%). No other complications were observed during follow-up. CONCLUSIONS: Large-cap graft may be safe and efficient for reconstructing contour of the nasal tip in revision rhinoplasty for East Asian patients. 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
Rinoplastia , Masculino , Feminino , Humanos , Adulto Jovem , Adulto , Rinoplastia/efeitos adversos , Septo Nasal/cirurgia , Seguimentos , Resultado do Tratamento , Estética , Estudos Retrospectivos
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...