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1.
Nanomaterials (Basel) ; 14(4)2024 Feb 16.
Artigo em Inglês | MEDLINE | ID: mdl-38392742

RESUMO

Studying the impact of residual soil nanomaterials is a promising challenge for sustainable agricultural development to improve soil health and crop productivity. The objective of this study is to assess the long-term impacts of 50, 100, and 250 mg kg-1 soil of nanobiochar (nB) and nano-water treatment residues (nWTR) on the fertility, biological activity, and yield of maize (Zea mays L.) growing in heavy metal-contaminated soils. The results showed that when nB and nWTR were added in larger quantities, the concentrations of lead (Pb), nickel (Ni), cadmium (Cd), and cobalt (Co) extracted with DTPA decreased. With the addition of nB or nWTR, it also showed a significant increase in exchangeable cations, cation exchange capacity (CEC), soil fertility, soil organic matter (OM), microbial biomass carbon (MBC), and a decrease in soil salinity and sodicity. Catalase and dehydrogenase activities rose as nB addition increased, while they decreased when nWTR addition increased. In comparison to the control, the addition of nB and nWTR greatly boosted maize yield by 54.5-61.4% and 61.9-71.4%, respectively. These findings suggest that the researched nanomaterials' residual effect provides an eco-friendly farming method to enhance the qualities of damaged soils and boost maize production. Our research suggested that adding recycling waste in the form of nanoparticles could immobilize heavy metals, improve soil characteristics, and increase the soil's capacity for productivity.

2.
Dermatol Surg ; 50(4): 366-371, 2024 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-38416809

RESUMO

BACKGROUND: Melasma is a common pigmentary condition that affects the patients' quality of life and all the prescribed treatment options till now are not satisfactory, especially in dark-skinned patients. OBJECTIVE: To evaluate the efficacy and safety of systemic metformin (1,000 mg and 500 mg) combined with trichloroacetic acid (TCA) peeling versus TCA alone in the treatment of melasma. PATIENTS AND METHODS: The study included 60 melasma patients divided into 3 groups: Group A received systemic metformin (1000 mg/d), Group B received systemic metformin (500 mg/d) and Group C received placebo. The 3 treatment groups were treated by TCA 25% over the whole face bimonthly for a total of 6 sessions. Melasma area and severity index (MASI), and Melasma impact Quality of life Scale (MELASQOL) were used to assess the outcome. RESULTS: There was a statistically significant decrease in the MASI, and the MELASQOL in the 3 studied groups after treatment with significantly better improvement in Group (A) than Group (C) ( p = .045). CONCLUSION: Systemic metformin is a safe and promising therapeutic option for treating melasma.


Assuntos
Abrasão Química , Melanose , Humanos , Abrasão Química/efeitos adversos , Melanose/terapia , Qualidade de Vida , Índice de Gravidade de Doença , Resultado do Tratamento , Ácido Tricloroacético
3.
Lupus ; 32(7): 873-879, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37183233

RESUMO

BACKGROUND: Although skin manifestations are common in systemic lupus erythematosus (SLE), there is still a lack of a diagnostic marker for cutaneous involvement. Pentraxin3 (PTX3) has been studied in SLE patients; however, it has not been investigated in relation to cutaneous manifestations. OBJECTIVE: To assess the serum PTX3 level in SLE patients, and to investigate its relationship with disease activity as well as with variable skin manifestations. PATIENTS AND METHODS: Thirty-four patients with SLE (17 patients with skin manifestations and 17 without) and 30 healthy subjects were included in the study. Patients were evaluated clinically for systemic and skin manifestations of SLE. Systemic Lupus Erythematosus Disease Activity Index (SLEDAI-2k) and Cutaneous Lupus Erythematosus Activity and Severity Index (CLASI) scores were calculated. Serum level of PTX3 was measured in patients and controls using ELISA. RESULTS: Higher serum PTX3 level was found in SLE patients compared to controls (p < 0.001). Patients with skin manifestations showed higher SLEDAI-2k scores and had higher PTX3 level compared to those without skin manifestations (p = 0.015 and p < 0.001, respectively). PTX3 showed higher levels in association with malar rash (p < 0.001), mucosal ulcers (p < 0.001), alopecia (p < 0.001), and purpuric eruption (p = 0.002). Moreover, PTX3 level positively correlated with CLASI scores (p < 0.001). CONCLUSION: Our results reinforce the important role of Pentraxin3 in SLE patients with skin manifestations, and it may be considered an interesting biomarker for the pattern and extent of cutaneous involvement in SLE.


Assuntos
Lúpus Eritematoso Cutâneo , Lúpus Eritematoso Sistêmico , Humanos , Lúpus Eritematoso Sistêmico/diagnóstico , Proteína C-Reativa/análise , Lúpus Eritematoso Cutâneo/diagnóstico , Lúpus Eritematoso Cutâneo/complicações , Índice de Gravidade de Doença
4.
Qatar Med J ; 2023(1): 6, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36846274

RESUMO

BACKGROUND: There are few statistics on dialysis-dependent individuals with end-stage kidney disease (ESKD) in Qatar. Having access to this information can aid in better understanding the dialysis development model, aiding higher-level services in future planning. In order to give data for creating preventive efforts, we thus propose a time-series with a definitive endogenous model to predict ESKD patients requiring dialysis. METHODS: In this study, we used four mathematical equations linear, exponential, logarithmic decimal, and polynomial regression, to make predictions using historical data from 2012 to 2021. These equations were evaluated based on time-series analysis, and their prediction performance was assessed using the mean absolute percentage error (MAPE), coefficient of determination (R2), and mean absolute deviation (MAD). Because it remained largely steady for the population at risk of ESKD in this investigation, we did not consider the population growth factor to be changeable. (FIFA World Cup 2022 preparation workforce associated growth was in healthy and young workers that did not influence ESKD prevalence). RESULT: The polynomial has a high R2 of 0.99 and is consequently the best match for the prevalence dialysis data, according to numerical findings. Thus, the MAPE is 2.28, and the MAD is 9.87%, revealing a small prediction error with good accuracy and variability. The polynomial algorithm is the simplest and best-calculated projection model, according to these results. The number of dialysis patients in Qatar is anticipated to increase to 1037 (95% CI, 974-1126) in 2022, 1245 (95% CI, 911-1518) in 2025, and 1611 (95% CI, 1378-1954) in 2030, with a 5.67% average yearly percentage change between 2022 and 2030. CONCLUSION: Our research offers straightforward and precise mathematical models for predicting the number of patients in Qatar who will require dialysis in the future. We discovered that the polynomial technique outperformed other methods. Future planning for the need for dialysis services can benefit from this forecasting.

5.
Appl Biochem Biotechnol ; 195(4): 2371-2394, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-36149583

RESUMO

Bombyx mori is an agriculturally important insect used extensively for silk production. India, especially the eastern regions, is mostly dependent on the multivoltine breeds of silkworm Bombyx mori and their hybrids/crossbreeds. The multivoltine breeds are indigenous and superior in survival and hardiness but are relatively inferior in terms of qualitative traits, typically the silk quality. Therefore, it is highly relevant to understand the mechanism of silk production in the multivoltine breeds to decipher the reasons for the inferior quality of silk produced by the multivoltine breeds and thus gain leads to improve the quality of silk production in multivoltine breeds. With this background, study was carried to identify differential expression of the major genes associated with silk proteins in the silk gland region of the popular multivoltine breeds. Our results indicated that although fib-L, fib-H, Sericins, and P25 are the major genes associated with silk filament, a few other genes associated with silk assembly, transport, and protection in the silk glands are the ones that largely contribute towards efficient silk production. The differential expression of these genes had a major effect on the movement of silk proteins within the silk gland and the efficiency of silk production as well. The Pearson correlation revealed a positive correlation amongst the genes dealt with in this study, indicating that the concurrent increase in expression of both the types of genes in the silk glands, significantly improves the silk production.


Assuntos
Bombyx , Fibroínas , Sericinas , Animais , Seda/genética , Seda/metabolismo , Bombyx/genética , Sericinas/genética , Sericinas/metabolismo , Fenótipo , Índia , Proteínas de Insetos/genética , Fibroínas/genética
6.
Dermatol Ther ; 35(12): e15925, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-36219518

RESUMO

Acne scarring usually causes cosmetic and psychological problems. Our aim of the study was to compare the efficacy of microneedling alone, intradermal injection of platelet rich plasma (PRP) alone and combined microneedling with PRP in the treatment of atrophic post-acne scars. Thirty adult patients with facial post-acne scars were randomly recruited and divided into two groups: A and B. Group A: included 15 patients; the left sides of their faces were treated with microneedling by dermapen followed by PRP while on the right side of the faces microneedling alone was performed. Group B: included 15 patients; the left sides of their faces were treated with microneedling by dermapen followed by PRP while the right sides of the faces were treated with intradermal injection of PRP. For both groups, the treatment session was repeated every 3 weeks until clearance of the atrophic acne scars or for four sessions maximally. Patients' evaluation was done pre-treatment and 3 weeks after the last session by photography, Goodman and Baron qualitative grading system and Echelle d'Evaluation Clinique des Cicatrices d'Acné (ECCA) scale. By using all of these evaluation methods, group A showed that there was better improvement on the left side but without statistical significant difference. However, group B showed that there was a significant reduction in the total number of post-acne scars on the left side compared to the right side by using photographic assessment and ECCA grading scale. Skin microneedling, PRP and combined microneedling with PRP are effective therapeutic modalities in atrophic post-acne scars treatment. However, combined microneedling with PRP gives better results and is better tolerated in all types of atrophic acne scars.


Assuntos
Acne Vulgar , Doenças do Tecido Conjuntivo , Plasma Rico em Plaquetas , Adulto , Humanos , Cicatriz/diagnóstico , Cicatriz/etiologia , Cicatriz/terapia , Agulhas/efeitos adversos , Terapia Combinada , Acne Vulgar/complicações , Acne Vulgar/terapia , Atrofia/terapia , Resultado do Tratamento
7.
Qatar Med J ; 2021(3): 46, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34733708

RESUMO

INTRODUCTION: Anemia management in dialysis is challenging. Keeping hemoglobin levels within a tight range is difficult. A new program (anemia nurse manager [ANM]) was started for better anemia management. This study aimed to compare traditional anemia management with the new ANM model regarding the achievement of better hemoglobin targets (range, 10-12 g/dL), avoidance of extreme hemoglobin levels ( < 9 or >13 g/dL), and evaluation of the cost-effectiveness of the new model. METHODS: This retrospective observational study compared traditional anemia management with management involving our new ANM model. Patients on hemodialysis in all ambulatory dialysis clinics in Qatar were included. The study included three phases: phase 1 (observation): June 2015 to August 2015, 460 patients; phase 2 (pilot): September 2015 to May 2016, 211 patients; and phase 3 (expansion in two phases): June 2016 to February 2017 and October 2017 to June 2018, 610 patients. Hemoglobin, iron saturation, and ferritin were evaluated according to the protocol. RESULTS: In this study, 55% of the patients achieved the target hemoglobin in phase 1 compared with 75% in phase 2 (p = 0.0007). The hemoglobin level within the target range was sustained at 72% ± 5% of patients in phase 3. The achievement rate of the target hemoglobin level increased from 56% (May 2015) to 72% (July 2018) (p < 0.001). The proportion of patients with extreme hemoglobin declined from 10.7% in phase 1 to 6.4% in phase 2 and sustained at 8% afterward. Reducing the doses of erythropoietin stimulating agents, owing to the use of the ANM model, saved costs by approximately 11%. CONCLUSIONS: The ANM model was able to achieve and maintain hemoglobin levels within the target range and decrease extreme hemoglobin levels. These outcomes improved patient care by avoiding high hemoglobin (increase thrombosis, cancer recurrence, stroke, and death) and low hemoglobin (weakness, poor quality of life, and need for transfusion) levels. The ANM model was cost effective even after including the salaries of nurses. This model can be considered in other aspects of patient care in dialysis.

8.
Afr Health Sci ; 21(2): 835-841, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-34795742

RESUMO

OBJECTIVE: To provide a grading system that accurately reflects the grades of female sexual dysfunction (FSD) severity. PATIENTS AND METHODS: A cross-sectional study was conducted in Assiut University Hospital. It included 500 women who answered the Arabic version of the Female Sexual Function Index (FSFI) after getting their consent. A gradient of FSD severity was created, classifying FSD into five grades: severe, moderate, mild to moderate, mild, and no FSD. RESULTS: According to our grading system, FSD was detected in 339 women (67.8 %); Mild FSD in 20.4%, mild to moderate in 41.6%, moderate in 15.3%, and severe in 22.7%. Mean scores of desire show a linear trend of reduction from 3.8 in mild to 3.36 in mild to moderate to 2.25 in moderate and markedly reduced to 2.1 in severe grade. This difference was highly statistically significant (p= 0.002). The same was reported in arousal, orgasm, and satisfaction domains, while in lubrication and pain domains, the difference was not statistically significant. CONCLUSION: In this study, our grading system was complementary to the FSFI. Moreover, it seems to be more practical and useful in grading the severity of FSD.


Assuntos
Índice de Gravidade de Doença , Disfunções Sexuais Fisiológicas/epidemiologia , Adolescente , Adulto , Estudos Transversais , Egito/epidemiologia , Feminino , Humanos , Pessoa de Meia-Idade , Comportamento Sexual/estatística & dados numéricos , Inquéritos e Questionários , Adulto Jovem
9.
J Pharm Bioallied Sci ; 13(1): 61-68, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34084049

RESUMO

BACKGROUND: Anticoagulation management is a complex process that is managed through careful monitoring, and patient satisfaction has a significant impact. Given the lack of a valid and reliable tool in Arabic to examine patient satisfaction, the present study aimed to translate and examine some of the psychometric properties of the Anti-Clot Treatment Scale (ACTS) among Saudi patients. MATERIALS AND METHODS: This was a cross-sectional, methodological study conducted among patients receiving warfarin. The questionnaire was subjected to translation by using a multistep method. The final Arabic translated version of the ACTS underwent face and content validity assessments by independent experts to ensure its conceptual equivalence to the original English version. Subsequently, pilot testing of convergent, discriminant, and criterion validities were examined. RESULTS: Overall, 136 patients participated in the study. All patients were asked to complete the generic Treatment Satisfaction Questionnaire for Medication (TSQM) alongside the ACTS tool. Convergent validity analyses revealed statistically significant positive correlations (p < 0.01) between the ACTS subscales and the four TSQM subdomains, as reflected by the Spearman correlation coefficient (r). Interestingly, the strongest correlations were observed between ACTS Burdens and the TSQM convenience domain (r = 0.61) and between ACTS Benefits and the TSQM effectiveness satisfaction score (r = 0.58). Similarly, discriminant validity was evidenced by moderate to high significant loading of all 12 items on each of their corresponding ACTS subscales. CONCLUSION: These findings of adequate validity support the use of the ACTS in Saudi patients receiving anticoagulant medications to measure their specific satisfaction levels with this type of therapy. However, future research addressing the clinical impact of ACTS scores in the Saudi population is needed.

10.
Hum Immunol ; 82(9): 634-639, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34020830

RESUMO

The monocyte/macrophage lineage cells were found involved in the pathogenesis of systemic sclerosis (SSc) disease. The naïve macrophages are activated either to M1 cells with proinflammatory roles or to M2 cells that function to resolve inflammation with tissue repair. Recently, cells with dual phenotypes were detected in SSc disease. So, we aimed in this study to demonstrate different monocyte/macrophage phenotypes in peripheral cells from a group of Egyptian SSc patients, correlating percentages of these cells with the clinical findings in patients. The study participants comprised 41 patients with diffuse cutaneous SSc disease and 25 healthy individuals as controls. Clinical, radiological, and laboratory tests were conducted for SSc patients. Different phenotypes of the monocyte/macrophage subsets were identified in peripheral blood of patients and controls by flow cytometry for characteristic M1 (CD80, CD86, and TLR4) and M2 (CD204, CD163 and CD206) markers. SSc patients showed higher percentages of peripheral cells of the M1, M2, and mixed M1/M2 phenotypes within the monocyte/macrophage lineage compared to controls. Different cell phenotypes were associated significantly with the disease duration, modified Rodnan's score, the Medsger skin score, and the Medsger lung in SSc patients. Some cells with the M1/M2 phenotypes were higher in SSc patients with pitting scars, arthritis, and myalgia.


Assuntos
Antígenos de Superfície/metabolismo , Biomarcadores , Macrófagos/imunologia , Macrófagos/metabolismo , Monócitos/imunologia , Monócitos/metabolismo , Escleroderma Sistêmico/diagnóstico , Escleroderma Sistêmico/etiologia , Adulto , Plasticidade Celular/imunologia , Feminino , Humanos , Imunofenotipagem , Masculino , Pessoa de Meia-Idade , Índice de Gravidade de Doença
11.
Qatar Med J ; 2021(1): 02, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33628714

RESUMO

BACKGROUND: End-stage kidney disease (ESKD) patients on maintenance renal replacement therapy (RRT) have far lower life spans than those of the general population. No previous studies have been performed to assess the mortality of dialysis patients in the State of Qatar. We designed this study to assess the mortality of dialysis patients in Qatar and the impact of dialysis modality. METHODS: All chronic ambulatory dialysis patients (both on hemodialysis (HD) and peritoneal dialysis (PD) between 2014 and 2016) were included in the study, whereas patients undergoing dialysis for less than 3 months were excluded. We reviewed patients' demographics, comorbidities, and general laboratory investigations through our electronic record system and collected and analyzed them. We identified patients who died during that period and compared them to those who survived. We performed a subanalysis for HD versus PD patients who died. RESULTS: The total number of deceased dialysis patients was 164, with an overall crude mortality rate of 6.4%. They were significantly older than those who survived (p = 0.0001). The mortality rate was significantly higher in female than in male patients (51.2% and 38.9%, respectively) (p = 0.004) but significantly lower in PD than HD patients (1.36%, PD; 5.0%, HD; p = 0.007). It was also significantly higher in natives than in the expats (60.3% and 39.6%, respectively) (p = 0.0008); however, no significant differences were noted between deceased natives and expats in most demographic and laboratory characteristics. The most common cause of patient death was CVD (62 patients, 37.8%), followed by sepsis (44 patients, 26.8%). Diabetes, cerebrovascular accident, and dyslipidemia were more common in HD deceased patients than in PD patients (80.6%, 47%, and 59%, respectively, in HD patients vs 68.5%, 42%, and 31%, respectively, in PD patients). Albumin and potassium levels in deceased PD patients were significantly lower than in HD patients (p = 0.001). CONCLUSION: Our study found that the high-risk population had a significant mortality, which was higher in HD than PD patients. This is the first study to look at these outcomes in Qatar. We identified multiple mortality associated factors, such as comorbid conditions and old age. We believe that improving treatment and close monitoring for comorbid conditions in the dialysis population might improve survival.

12.
Arch Dermatol Res ; 313(7): 549-556, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32892246

RESUMO

Most therapeutic approaches for keloids remain clinically unsatisfactory. In the last years, intralesional botulinum toxin-A (IL BTX-A) was proposed for treatment of keloids. Our aim of the study was to compare the clinical efficacy of IL BTX-A and IL 5-Fluorouracil (IL 5-FU) in treatment of keloids. A total of 50 patients with keloids were included in the study, 22 patients (with 26 keloids) were treated with IL BTX-A monthly for up to 6 months and other 22 patients (with 27 keloids) were treated with IL 5-FU weekly for up to 6 weeks, while the remaining 6 patients, each having multiple keloids, were treated with both IL BTX-A for some lesions (8 keloids) and IL 5-FU for their remaining lesions (8 keloids). The clinical improvement was assessed according to flattening of the lesions. Side effects were recorded. A significantly better therapeutic response of keloids was detected after IL BTX-A than IL 5-FU (P = 0.041). IL BTX-A achieved excellent and good flattening of the lesions (58.8% and 20.6%) compared to (31.4% and 17.1%) after IL 5-FU, respectively. In BTX-A treated group, there was no statistically significant difference between the clinical response in small lesions compared to medium and large ones (P = 0.476). While in 5-FU treated group, small and medium lesions showed significantly better response than larger ones (P = 0.009). IL BTX-A caused fewer side effects than IL 5-FU, less pain, itching, no hyperpigmentation and less recurrence. Both IL BTX-A and IL 5-FU showed positive results in treatment of keloids. However, IL BTX-A showed higher clinical efficacy even in large size keloids with less side effects.


Assuntos
Toxinas Botulínicas Tipo A/administração & dosagem , Fluoruracila/administração & dosagem , Hiperpigmentação/epidemiologia , Reação no Local da Injeção/epidemiologia , Queloide/tratamento farmacológico , Adolescente , Adulto , Toxinas Botulínicas Tipo A/efeitos adversos , Feminino , Fluoruracila/efeitos adversos , Seguimentos , Humanos , Hiperpigmentação/induzido quimicamente , Reação no Local da Injeção/etiologia , Injeções Intralesionais/efeitos adversos , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento , Adulto Jovem
13.
Entropy (Basel) ; 22(12)2020 Nov 30.
Artigo em Inglês | MEDLINE | ID: mdl-33266337

RESUMO

The security of information is necessary for the success of any system. So, there is a need to have a robust mechanism to ensure the verification of any person before allowing him to access the stored data. So, for purposes of increasing the security level and privacy of users against attacks, cancelable biometrics can be utilized. The principal objective of cancelable biometrics is to generate new distorted biometric templates to be stored in biometric databases instead of the original ones. This paper presents effective methods based on different discrete transforms, such as Discrete Fourier Transform (DFT), Fractional Fourier Transform (FrFT), Discrete Cosine Transform (DCT), and Discrete Wavelet Transform (DWT), in addition to matrix rotation to generate cancelable biometric templates, in order to meet revocability and prevent the restoration of the original templates from the generated cancelable ones. Rotated versions of the images are generated in either spatial or transform domains and added together to eliminate the ability to recover the original biometric templates. The cancelability performance is evaluated and tested through extensive simulation results for all proposed methods on a different face and fingerprint datasets. Low Equal Error Rate (EER) values with high AROC values reflect the efficiency of the proposed methods, especially those dependent on DCT and DFrFT. Moreover, a comparative study is performed to evaluate the proposed method with all transformations to select the best one from the security perspective. Furthermore, a comparative analysis is carried out to test the performance of the proposed schemes with the existing schemes. The obtained outcomes reveal the efficiency of the proposed cancelable biometric schemes by introducing an average AROC of 0.998, EER of 0.0023, FAR of 0.008, and FRR of 0.003.

14.
Mol Biol Rep ; 47(7): 5333-5342, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-32617957

RESUMO

RNA interference (RNAi) has become an efficient tool for inducing resistance to viruses in many organisms. In this study, Escherichia coli cells were engineered to produce stable double-stranded RNA (dsRNA) against the nucleopolyhedrosis virus to elicit RNAi in silkworms. The immediate-early-1 (ie-1) and late expression factor-1 (lef-1) genes of the Bombyx mori nucleopolyhedrovirus (BmNPV) involved in viral DNA multiplication were cloned in the plasmid L4440 under the influence of the double T7 promoter and transformed to E. coli HT115 DE3 host cells. On induction with isopropyl ß-D-thiogalactopyranoside, these cells efficiently produced dsRNA of the cloned genes. The B. mori larvae were fed with 50 µL of E. coli cells expressing ie-1 and lef-1 dsRNAs (each approximately 25 µg) to elicit RNAi. The semi-quantitative and quantitative PCR analysis of RNA from the midgut of the dsRNA-fed larvae revealed a significant reduction in the expression of the target genes involved in BmNPV multiplication, which restricted virus copy numbers to 100 compared with 1.9 × 105 in the infected controls. Furthermore, the dsRNA-fed infected larvae showed > 50% increased survivability compared with the infected controls. The study revealed the successful use of bacteria as vectors for efficiently delivering dsRNA to elicit RNAi against BmNPV in silkworms.


Assuntos
Bombyx/virologia , Resistência à Doença , Marcação de Genes/métodos , Nucleopoliedrovírus/genética , Interferência de RNA , Proteínas Virais/genética , Replicação Viral , Animais , Escherichia coli/genética , Escherichia coli/metabolismo , Técnicas de Transferência de Genes , Nucleopoliedrovírus/patogenicidade , Nucleopoliedrovírus/fisiologia , Proteínas Virais/metabolismo
15.
J Cosmet Dermatol ; 19(6): 1517-1521, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-31638311

RESUMO

BACKGROUND: Therapies for postacne scarring act through modulation of elastin and collagen, and collagen III might therefore represent a biomarker of treatment effectiveness. PATIENTS AND METHODS: Patients (n = 70) with postacne scars and individuals without scars (n = 56) were included in this case-control study. Patients were treated with Dermaroller microneedling, trichloroacetic acid chemical reconstruction, punch excision, or scar subcision. Scar severity was graded immediately before and after treatment with a photographic quartile scale and the ECCA scale. Serum levels of collagen III were measured in control individuals and in patients, before treatment, 1 month after the first treatment session, and 4 months after the final session. RESULTS: Circulating levels of collagen III were significantly higher in patients with postacne scarring (24.1 ± 12.5) before treatment than in control individuals (2.6 ± 0.8). Circulating levels of collagen in patients were significantly lower 4 months posttreatment (14.3 ± 8.1) than at baseline. The mean percentage change in serum collagen III was positively correlated with both the mean percentage improvement by photographic evaluation (r = .530, P < .000) and the mean percentage change in the ECCA scale (r = .632, P < .000). CONCLUSION: Circulating collagen III is a biomarker for improvement of postacne scarring following different therapies.


Assuntos
Acne Vulgar/terapia , Cicatriz/terapia , Colágeno Tipo III/sangue , Pele/patologia , Acne Vulgar/complicações , Adolescente , Adulto , Biomarcadores/sangue , Estudos de Casos e Controles , Cáusticos/administração & dosagem , Cicatriz/sangue , Cicatriz/diagnóstico , Cicatriz/etiologia , Colágeno Tipo III/metabolismo , Agulhamento Seco , Feminino , Humanos , Hipertrofia/diagnóstico , Hipertrofia/etiologia , Hipertrofia/terapia , Masculino , Fotografação , Índice de Gravidade de Doença , Pele/diagnóstico por imagem , Pele/efeitos dos fármacos , Pele/metabolismo , Resultado do Tratamento , Ácido Tricloroacético/administração & dosagem , Adulto Jovem
16.
Egypt J Immunol ; 25(1): 81-91, 2018 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30243000

RESUMO

Pentraxin3 (PTX3) plays an important role in inflammation, immunity, and atherosclerosis. Serum PTX3 has drawn attention as a marker that respond to local inflammation. Interleukin 36 (IL-36) is a novel inflammatory member of the IL-1 cytokine family comprising three different isoforms IL36α, IL-36ß and IL-36γ. The objective of this work was to evaluate the levels of PTX3 and IL36α and to determine their relationships to disease activity in patients with systemic lupus erythematosus (SLE). Forty patients with SLE diagnosed according to SLECCA/ACR2012 criteria were allocated to the study, along with 20, age and sex matched normal control subjects. SLE patients included 20 patients with active disease, each having SLEADI score over 6 points and the other 20 patients, each of them had SLEADI score less than 6 points. Levels of serum PTX3 and IL36α was measured by quantitative sandwich enzyme immunoassay technique. There was a significant increase in the serum pentraxin3 and IL36α in SLE patients (P < 0.01) compared to normal control subjects. The significance increased in serum levels of PTX3 and IL-36α, was noted in active (P=0.000 for both) and inactive SLE patients (P=0.003 and P=0.001, respectively), compared to normal control subjects. Moreover, the active SLE patients had significant increase in the serum levels of PTX3 and IL36α (P < 0.01 for both) compared to the inactive group of patients. A significant positive correlation between each of PTX3 and IL36α, and SLEADI score (P=0.008 and P=0.024, respectively) in SLE patients was observed. In conclusion, PTX3and IL36α serum levels are increased in SLE patients when compared to normal control subjects, correlated positively with SLEDAI score and thus could be used as markers of disease activity.


Assuntos
Proteína C-Reativa/análise , Interleucina-1/sangue , Lúpus Eritematoso Sistêmico/sangue , Componente Amiloide P Sérico/análise , Biomarcadores/sangue , Estudos de Casos e Controles , Humanos , Inflamação
17.
Reprod Health ; 14(1): 108, 2017 Aug 30.
Artigo em Inglês | MEDLINE | ID: mdl-28854947

RESUMO

BACKGROUND: The existing literature is contradictory regarding effects of female genital mutilation/cutting (FGM/C) on sexual functions. The aim of this study was to explore the impact of type I and II FGM/C on sexual function of Egyptian women. METHODS: We recruited 197 cut women and 197 control women from those visiting Assiut University hospitals for different reasons. We asked each woman to fill the Arabic female sexual function index (FSFI) (a self reported 19-item questionnaire assessing the main domains of female sexual function). Genital Examination was done to confirm the type of FGM. RESULTS: Female sexual dysfunction (FSD) was found in 83.8% of FGM/C cases in contrast to 64.5% of the control. The total FSFI score in the FGM/C group (19.82 ± 7.1) was significantly lower than in the control group (23.34 ± 8.1). Concerning the types of FGM/C, type 73.6% of cases had type I and 26.4% had type II. Type I FGM/C was performed mainly by physicians (62.1%) while type II was performed mainly by midwives (44.4%). FSD was found in 83.4% of FGM/C I cases and in 84.6% of FGM/C II cases. There was no statistically significant difference between the two types of FGM/C as regards total and individual domain scores except for the pain domain. There were significantly lower total and individual domain scores in both FGM/C types except for the desire domain compared to control. CONCLUSION: In this study, FGM/C was associated with reduced scores of FSFI on all domains scores, and among both types I and II, both were associated with sexual dysfunction.


Assuntos
Circuncisão Feminina/efeitos adversos , Disfunções Sexuais Fisiológicas/epidemiologia , Estudos de Casos e Controles , Circuncisão Feminina/estatística & dados numéricos , Egito , Feminino , Humanos
18.
Cryobiology ; 75: 151-153, 2017 04.
Artigo em Inglês | MEDLINE | ID: mdl-28288795

RESUMO

The biological mechanism underlying cryosurgical treatment of keloids remains unclear. Transforming growth factor-beta1 (TGF-ß1) has been implicated in the pathogenesis of keloids and was reported to be the target of several therapeutic modalities. However, the effect of cryosurgery on its expression in keloid tissue has not been yet investigated. In this study, 26 consecutive keloid patients were treated with cryosurgery for 2-6 sessions. Keloids were biopsied before starting cryosurgery and after two treatment sessions for the immunohistochemical evaluation of TGF-ß1 expression. The average volume reduction, after two treatment sessions (in 22 patients completing the study) was 68.77 ± 15.82%. Dermal overexpression of TGF-ß1 was demonstrated in all keloid specimens before treatment. Following therapy, significant reduction of that expression was detected in all keloid specimens (P = 0.016). In addition to attesting the clinical efficacy of cryosurgery, our findings indicate that cryosurgery effectively suppressed TGF-ß1 expression, possibly contributing to keloid regression.


Assuntos
Criocirurgia , Queloide/metabolismo , Queloide/cirurgia , Fator de Crescimento Transformador beta1/biossíntese , Feminino , Humanos , Imuno-Histoquímica , Masculino , Pessoa de Meia-Idade
19.
Clin Cardiol ; 40(5): 314-321, 2017 May.
Artigo em Inglês | MEDLINE | ID: mdl-28272832

RESUMO

BACKGROUND: Several studies have demonstrated the importance of left ventricular (LV) global longitudinal strain (GLS) as a reliable prognostic indicator in patients with heart failure (HF). These studies have included few African American (AA) patients, despite the growing prevalence and severity of HF in this patient population. HYPOTHESIS: LV GLS predicts long-term HF admission and all-cause mortality in AA patients with chronic HF on optimal guideline-directed medical therapy (GDMT). METHODS: We enrolled 207 AA adults, age 56 ± 14.5 years, with New York Heart Association (NYHA) class I through III HF on optimal GDMT from the University of Illinois HF clinic between November 2001 and February 2014. LV GLS was assessed by velocity vector imaging using 2-, 3-, and 4-chamber views. Patients were followed for HF admissions and death for 3 ± 3.0 years. LV GLS value of -7.95 was used as the optimal cutoff point that maximizes sensitivity and specificity RESULTS: LV GLS < -7.95% was significantly associated with higher all-cause mortality and HF admissions in Kaplan-Meier survival curves (log-rank P < 0.001). After incorporation in multivariate Cox proportional hazard models, GLS < -7.95% was found to be an independent predictor of all-cause mortality (hazard ratio [HR] = 4.04; 95% confidence interval [CI]: 1.07-15.32; P = 0.04] and HF admissions (HR = 3.86; 95% CI: 1.38-10.77; P = 0.010). CONCLUSIONS: In AA patients with chronic stable HF on GDMT, more impaired LV GLS (< -7.95%) is a strong and independent predictor of long-term all-cause mortality and HF admissions.


Assuntos
Negro ou Afro-Americano , Insuficiência Cardíaca/mortalidade , Insuficiência Cardíaca/fisiopatologia , Hospitalização , Contração Miocárdica , Volume Sistólico , Disfunção Ventricular Esquerda/mortalidade , Disfunção Ventricular Esquerda/fisiopatologia , Função Ventricular Esquerda , Adulto , Idoso , Fenômenos Biomecânicos , Causas de Morte , Distribuição de Qui-Quadrado , Chicago , Comorbidade , Feminino , Insuficiência Cardíaca/diagnóstico por imagem , Insuficiência Cardíaca/etnologia , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Prognóstico , Modelos de Riscos Proporcionais , Medição de Risco , Fatores de Risco , Estresse Mecânico , Fatores de Tempo , Disfunção Ventricular Esquerda/diagnóstico por imagem , Disfunção Ventricular Esquerda/etnologia
20.
Clin Cardiol ; 40(6): 399-406, 2017 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-28191905

RESUMO

Acute myocardial infarction (AMI) during pregnancy or the early postpartum period is rare, but can be devastating for both the mother and the fetus. There have been major advances in the diagnosis and treatment of acute coronary syndromes in the general population, but there is little consensus on the approach to diagnosis and treatment of pregnant women. This article reviews the literature relating to the pathophysiology of AMI in pregnant patients and the challenges in diagnosis and treatment of ST-elevation myocardial infarction (STEMI) in this unique population. From a cardiologist, maternal-fetal medicine specialist, and anesthesiologist's perspective, we provide recommendations for the diagnosis and management of STEMI occurring during pregnancy.


Assuntos
Eletrocardiografia , Intervenção Coronária Percutânea/métodos , Complicações Cardiovasculares na Gravidez , Infarto do Miocárdio com Supradesnível do Segmento ST/epidemiologia , Feminino , Humanos , Gravidez , Estudos Retrospectivos , Infarto do Miocárdio com Supradesnível do Segmento ST/diagnóstico
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