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1.
Haemophilia ; 30(3): 752-764, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38439143

RESUMO

INTRODUCTION: Poor response to platelet and recombinant factor VII administration is a major problem in patients with Glanzmann Thrombasthenia (GT). The risk factors associated with poor response to treatment in these patients are unknown. Some genetic variations of cytokines may contribute to therapy resistance. AIMS: We evaluated, for the first time, whether genetic polymorphisms on cytokine genes are related to poor treatment response in GT patients. METHODS: We enrolled 30 patients with GT (15 resistant and 15 non-resistant) and 100 healthy controls. Gene polymorphisms of IL-10 and TNF-α were analysed using TaqMan Realtime PCR, and IL-1, IL-1R1 and IL-1RN were investigated with the RFLP method. In-silico analyses were performed to predict the potential impact of these polymorphisms. RESULTS: In the resistant group, all patients had a variant of the IL-10 gene at the -1082 position (rs1800896), with a GG genotype that was significantly more frequent than the non-resistant group. Analysis between healthy controls and GT patients revealed a probable correlation between rs3783550, rs3783553, rs3917356 and rs2234463 and GT. The In-silico study indicated that TNF-α rs1800629 and IL-10 rs1800896 polymorphisms result in different allelic expressions which may contribute to poor response to therapy. CONCLUSIONS: These findings suggest that polymorphisms in the IL-10 and IL-1 receptor antagonist genes may play a role in poor therapy response in GT patients. In addition, some polymorphisms in IL-1α, IL1-ß, IL-1R1 and IL-R antagonists might be involved in the GT progression.


Assuntos
Proteína Antagonista do Receptor de Interleucina 1 , Trombastenia , Humanos , Masculino , Feminino , Trombastenia/genética , Trombastenia/tratamento farmacológico , Proteína Antagonista do Receptor de Interleucina 1/genética , Proteína Antagonista do Receptor de Interleucina 1/uso terapêutico , Interleucina-10/genética , Criança , Polimorfismo de Nucleotídeo Único , Proteínas Recombinantes/uso terapêutico , Adolescente , Genótipo , Fator de Necrose Tumoral alfa/genética , Fator de Necrose Tumoral alfa/antagonistas & inibidores , Pré-Escolar , Receptores Tipo I de Interleucina-1/genética , Adulto , Estudos de Casos e Controles , Polimorfismo Genético
2.
Tech Coloproctol ; 28(1): 30, 2024 Feb 07.
Artigo em Inglês | MEDLINE | ID: mdl-38321328

RESUMO

BACKGROUND: Low anterior resection in patients with rectal cancer may require a defunctioning loop ileostomy formation that requires closure after a period of time. There are three common techniques for ileostomy closure: anterior repair (AR or fold-over closure), resection and hand-sewn anastomosis (RHA), and resection and stapled anastomosis (RSA). We aimed to compare them on the basis of operative and postoperative features. METHODS: Patients with rectal cancer who underwent low anterior resection without complications were included in this study and randomly assigned to three parallel groups to undergo loop ileostomy closure via either AR, RHA, or RSA. Early and late outcomes were gathered from all included patients. RESULTS: Among 93 patients with a mean age of 56.21 ± 11.78 years, consisting of 58 (62.4%) men, 31 patients underwent AR, 30 patients RHA, and 32 patients RSA. There was no significant difference among the groups regarding the frequency and location of intraoperative injuries (P = 0.157). The AR groups demonstrated significantly less consumption of gauzes following intraoperative bleeding compared to the two others groups. The results showed that the duration of surgery in the RSA was significantly shorter than in the AR or RHA group (both P < 0.001). Regarding postoperative course, only one case of hematoma and two cases of surgical wound infection occurred in the RHA group. Anastomotic leakage and complete or partial obstruction did not occur in any group of patients. Latent postoperative complications did not occur in any group of patients. The median time between surgery and discharge as well as the interval until first gas passage, first defecation, oral tolerated liquid diet, as well as oral tolerated soft and regular diet in the AR group were significantly lower than in the two other groups (both P < 0.001). However, there was no statistical difference in these intervals between the RHA and RSA groups. CONCLUSIONS: Resection and stapled anastomosis had the shortest duration among the three techniques; however, anterior repair had faster recovery, including earlier tolerated oral diet, gas passing and defecation, and discharge, in comparison with the other techniques. TRIAL REGISTRATION: Trial registration number IRCT20120129008861N5.


Assuntos
Ileostomia , Neoplasias Retais , Masculino , Humanos , Adulto , Pessoa de Meia-Idade , Idoso , Feminino , Ileostomia/efeitos adversos , Técnicas de Sutura/efeitos adversos , Anastomose Cirúrgica/efeitos adversos , Fístula Anastomótica/etiologia , Neoplasias Retais/cirurgia , Complicações Pós-Operatórias/etiologia
3.
Health Sci Rep ; 6(10): e1658, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37916143

RESUMO

Introduction: Colorectal cancer (CRC) surgery complications are a major issue affecting morbidity and mortality rates. Anastomotic stricture, which occurs in almost 30% of patients after surgery for rectal cancer, is one of the most serious but underreported side effects. In this study, we tried to assess the effect of stapler size on anastomotic stricture rate. Materials and Methods: At our facility, all patients underwent low anterior resections (LAR) performed using an open laparotomy technique. A contour-curved stapler and an end-to-end anastomosis (EEA) circular stapler were used in the double stapling technique (DST). All patients also underwent a protective loop ileostomy. Patients who developed stricture following leakage were excluded. Results: This study comprised a total of 173 rectal cancer patients. A 29-mm circle stapler was used to anastomose 77 patients (44.5%), while a 31-mm circular stapler was used to anastomose 96 patients (55.5%). Six individuals experienced strictures; two had a 29 mm stamper and four (4.4%) had a 31 mm one. There was no significant difference between the two groups (p:0.575). On aggregate, 8 patients experienced leakage; 3 (3.8%) of these patients received treatment with a 29 mm stapler, whereas 5 (5.2%) received treatment with a 31 mm stapler. Conclusion: this study found no statistically significant difference in the stricture rates and stapler size. The findings of this study provide credibility to the notion that in rectal cancer patients having LAR, strictures can be safely avoided by performing the anastomoses with both staplers.

4.
J Appl Biomater Funct Mater ; 21: 22808000231198803, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37811589

RESUMO

PURPOSE: Bleeding is a leading cause of mortality and morbidity in the trauma and surgery field, using effective hemostatic agents can help us reduce bleeding especially in parenchymal hemorrhage. Nowadays polyvinyl alcohol (PVA) is known as a safe candidate for wound dressing and maybe a hemostatic agent. PVA-based hydrogel is a popular biocompatible material in the biomedical field especially when it has high water absorption. In this study, we investigated the PVA hydrogel's mechanical and biological properties as well as its hemostatic potential in parenchymal bleeding. METHODS: PVA hydrogel had made by the freeze-thawing approach, we used PVA hydrogel in comparison to standard treatment to investigate hemostatic potency. Also, we performed MTT (3-(4,5-Dimethylthiazol-2-yl)-2,5-Diphenyltetrazolium Bromide) tests to survey PVA cellular toxicity. After an acute liver injury, two groups of 12 rats were treated with PVA hydrogel or standard treatment with sterile gauze. The results including the time and volume of bleeding, and the time and survival rate of the rats were measured and compared. RESULTS: We saw that PVA hydrogel was safe with no cellular toxicity in the MTT assay. Regarding efficacy, PVA hydrogel increased rats' survival after bleeding from 75% to 91.7%, and decreased bleeding time (p: 0.015), and bleeding volume (p: 0.03) compared to the control group. CONCLUSION: Polyvinyl alcohol is safe. It has good biological properties with no cellular toxicity and has a significant hemostatic effect and can be regarded in control of parenchymal hemorrhage.


Assuntos
Hemostáticos , Ratos , Animais , Hemostáticos/farmacologia , Hemostáticos/uso terapêutico , Álcool de Polivinil/farmacologia , Hidrogéis/farmacologia , Cicatrização , Hemorragia/tratamento farmacológico
5.
Health Sci Rep ; 6(6): e1363, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37359414

RESUMO

Background and Aims: The Hemorrhoidal Disease Symptom Score (HDSS) is a tool that is scored based on five main symptoms: pain, bleeding, itching, soiling, and prolapse. Furthermore, the Short Health Scale (SHS) is a measurement tool of subjective health and health-related quality of life. This study was performed to validate the Farsi-translated Hemorrhoidal Disease Symptom Score (HDSS), and Scale Short Health Scale adapted for hemorrhoidal disease (SHS-HD) as a measure of symptom severity in patients with hemorrhoid disease. Methods: In this study, HDSS and SHS-HD were translated into Farsi. Participants with confirmed hemorrhoid disease completed the questionnaire. Subsequently, the questionnaire's discriminative validity, convergent validity, reliability, sensitivity, and specificity were evaluated. Results: Data from 31 patients were analyzed (mean age 39.68; 71% male). The results of the analysis showed good internal consistency as Cronbach's α for HDSS and SHS were 0.994 and 0.995 respectively. Spearman's correlation coefficient for the test-retest comparison was 0.986 (p < 0.01). The responses demonstrated good convergent validity. Moreover, the comprehension and suitability of each question were rated as excellent (Pearson's correlation coefficient = 0.3). Conclusions: Our findings revealed that the Farsi translation of the HDSS and SHS-HD can be a valuable tool for evaluating the symptom severity in patients with hemorrhoid disease.

6.
PLoS One ; 18(4): e0277170, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37027362

RESUMO

INTRODUCTION: The effective treatment of anal fistulas almost always requires surgical intervention, which could be accompanied by post-operative complications, and affect the quality of life of patients. This study aimed to cross-culturally adapt the Persian version of the Quality of Life in patients with Anal Fistula questionnaire and evaluate its validity and reliability. MATERIALS AND METHODS: Sixty patients with a mean age of 44 years ranging from 21 to 72 years entered the study. Forty-seven participants were men, and thirteen were women. After performing a scientific translation of the questionnaire based on Beaton's guidelines for cross-cultural adaptation and after extensive reviews by experts and specialists, the final version of the questionnaire was obtained. Then, 60 questionnaires (100%) were filled out by the participants (n = 60) and retrieved during a 7 to 21-day period. Data were collected and analyzed. Finally, according to the obtained data, the validity and reliability of the questionnaire were calculated. RESULTS: Cross-cultural adaptation of the translated questionnaire was verified by the expert committee. The results showed perfect internal consistency (Cronbach alpha = 0.842), and external consistency (intraclass correlation coefficient = 0.800; P<0.001). Spearman correlation coefficient between test and retest was reported to be 0.980 (P-value <0.01), confirming the temporal stability of the translated questionnaire. The interrater reliability based on Cohen's kappa coefficient also demonstrated a perfect degree of agreement between two peer variables (Kappa = 0.889; P<0.001). CONCLUSION: The Persian translation of the Quality of Life in patients with the Anal Fistula questionnaire was proven to be valid and reliable for the evaluation of the QoL of patients with anal fistula.


Assuntos
Qualidade de Vida , Fístula Retal , Masculino , Humanos , Feminino , Adulto , Comparação Transcultural , Psicometria/métodos , Reprodutibilidade dos Testes , Inquéritos e Questionários , Fístula Retal/cirurgia
7.
Updates Surg ; 75(4): 847-854, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37086350

RESUMO

Anastomotic leakage is one of the major complications of colorectal surgery, which might lead to reoperation, increased hospital stays, further intervention and mortality. Vacuum-assisted closure by devices such as Endo-SPONGE® produced by (B-Braun Medical B.V.) is currently being used to treat leakage and fistula. In this study, we aimed to assess the handmade vacuum-assisted sponge drain for anastomotic leakage following low anterior resection. This prospective study included 22 patients who had undergone sponge drain placement to treat anastomotic leakage. All patients had anastomotic leaks or defects after left anterior rectal resection (LAR) without ileostomy. They were treated with neo-adjuvant chemotherapy before the surgery and then subjected to rigid recto-sigmoidoscopy for 30 days following the operation. Any sign of leakage, such as perianal and pelvic pain, was immediately identified and followed up with a CT scan and another recto-sigmoidoscopy. Twenty-two patients were enrolled in this study, 12 men (54.5%) and 10 women (47.4%). All patients had received neo-adjuvant chemotherapy with an average follow-up of 22.30 ± 3.81. 75% of patients (15 cases) were successfully treated, and 17 patients (85%) underwent successful ostomy closure. Treatment failed in 5 patients (25%), including three men and two women. This study shows that handmade vacuum-assisted sponge drain is a cost-effective method of anastomotic leakage management with efficacy similar to that of Endo-SPONGE®.


Assuntos
Fístula Anastomótica , Neoplasias Retais , Masculino , Humanos , Feminino , Fístula Anastomótica/terapia , Fístula Anastomótica/cirurgia , Anastomose Cirúrgica/efeitos adversos , Estudos Prospectivos , Drenagem/métodos , Reto/cirurgia , Neoplasias Retais/cirurgia , Estudos Retrospectivos
8.
Naunyn Schmiedebergs Arch Pharmacol ; 396(9): 1911-1921, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-36859536

RESUMO

Anastomosis is a standard technique following different conditions such as obstruction, tumor, and trauma. Obstruction, adhesion, or anastomosis leakage can be some of its complications. To improve healing and prevent postoperative complications, we design a hybrid scaffold containing acellular human amniotic membranes and polycaprolactone-molybdenum disulfide nanosheets for colon anastomosis. The animal model of colocolonic anastomosis was performed on two groups of rats: control and scaffold. The hybrid scaffold was warped around the anastomosis site in the scaffold group. Samples from the anastomosis site were resected on the third and seventh postoperative days for histopathological and molecular assessments. Histopathologic score and burst pressure had shown significant improvement in the scaffold group. No mortality and anastomosis leakage was reported in the scaffold group. In addition, inflammatory markers were significantly decreased, while anti-inflammatory cytokines were increased in the scaffold group. The result indicates that our hybrid scaffold is a proper choice for colorectal anastomosis repair by declining postoperative complications and accelerating healing.


Assuntos
Colo , Molibdênio , Humanos , Gravidez , Ratos , Feminino , Animais , Colo/cirurgia , Colo/patologia , Âmnio/cirurgia , Cicatrização , Placenta , Complicações Pós-Operatórias/prevenção & controle , Anastomose Cirúrgica , Modelos Animais
9.
Int Urol Nephrol ; 55(8): 2083-2089, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-36828921

RESUMO

INTRODUCTION: The laparoscopic omentopexy has been described for the prevention of peritoneal dialysis catheter obstruction due to omental wrapping of the catheter. As there are some controversies and limited data regarding the outcomes of prophylactic omentopexy, we designed a study to evaluate the efficacy of prophylactic omentopexy in preventing catheter dysfunction in patients undergoing laparoscopic catheter placement. MATERIALS AND METHODS: In this randomized clinical trial, patients with end-stage renal disease during 3 months were divided into two groups of peritoneal dialysis catheter implants with and without omentopexy and subsequently evaluated regarding postoperative features. RESULTS: A total of 43 patients were evaluated, including 22 undergoing prophylactic omentopexies. There was no significant difference among the baseline features of the patients. There was also no significant difference regarding postoperative features, including peritonitis, leakage, reoperation, need for catheter removal, and mortality. CONCLUSION: Prophylactic omentopexy did not cause any significant differences in complications. In addition, there was no benefit for decreasing postoperative outflow obstruction due to omental wrapping following peritoneal dialysis catheter insertion.


Assuntos
Falência Renal Crônica , Laparoscopia , Diálise Peritoneal , Humanos , Cateteres de Demora , Cateterismo , Falência Renal Crônica/terapia , Estudos de Casos e Controles
10.
J Gastroenterol Hepatol ; 38(4): 539-547, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-36640153

RESUMO

BACKGROUND AND AIM: A perianal fistula is an abnormal tract that connects anal canal to skin. Current medical and surgical interventions have a high failure rate particularly in complex and refractory cases. MSC-derived exosomes have demonstrated immunomodulatory effects without the conventional complications; hence, in this study, we evaluated the safety of their application for complex perianal fistula. METHODS: Placenta-derived MSCs were cultured, and exosomes were isolated using ultracentrifugation. Exosome injections were administered in the operating room to 11 patients with complex perianal fistula (presence of fistulas for at least 1 year alongside medical and surgical treatment). The patients were followed for 6 months, and the patients were evaluated using physical examination, face-to-face interviews, and magnetic resonance imaging (MRI). RESULTS: Among 11 patients only one did not show any improvement upon physical examination. Five patients showed complete tract resolve. While the discharge was stopped in eight patients, two patients showed only reduction. None of the patients showed any acute or latent allergic reaction or injection related complications. CONCLUSION: Administration of exosomes isolated from MSCs demonstrates safety and a satisfactory therapeutic effect in treatment complex perianal fistulae; therefore, it can be a candidate for future studies and might play a significant role in treatment.


Assuntos
Doença de Crohn , Exossomos , Transplante de Células-Tronco Mesenquimais , Células-Tronco Mesenquimais , Fístula Retal , Humanos , Doença de Crohn/diagnóstico , Transplante de Células-Tronco Mesenquimais/efeitos adversos , Transplante de Células-Tronco Mesenquimais/métodos , Fístula Retal/etiologia , Fístula Retal/terapia , Fístula Retal/diagnóstico , Resultado do Tratamento
11.
J Pediatr Hematol Oncol ; 45(5): e603-e608, 2023 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-36706314

RESUMO

BACKGROUND: The chimeric enzyme SETMAR (or Metnase) has been associated with several DNA processes, including DNA damage repair through the non-homologous joining pathway and suppression of chromosomal translocation in mouse fibroblasts. SETMAR overexpression has been reported in certain cancers suggesting that it might contribute to the establishment or progression of these cancers. In leukemia, the SETMAR gene transcript variants have not been widely studied. Therefore, this study aimed to quantify 3 predominant SETMAR variants in 2 types of childhood acute leukemia, acute myeloid leukemia (AML) and acute lymphoblastic leukemia (ALL). METHODS: In this study, using reverse transcription-quantitative polymerase chain reaction (RT-qPCR), the relative expression of 3 SETMAR transcript variants (Var 1, Var 2, and Var A) were evaluated in the bone marrow samples collected from 30 newly diagnosed patients with AML, 65 newly diagnosed patients with ALL, and 15 healthy individuals. RESULTS: The expression of SETMAR variants 1 and A were significantly higher in AML patients compared with controls ( P =0.02, and P =0.009, respectively). Variant A expression was significantly higher in ALL compared with controls ( P =0.003). When comparing the expression in translocation-positive and negative subgroups, the expression of variant 1 was significantly higher in translocation-positive ALL patients ( P =0.03). The variants' distribution patterns differed concerning translocation status ( P =0.041), as variants 1 and A were dominant in the translocation-positive ALL group, and variant 2 was more prevalent in translocation-negative ones. CONCLUSIONS: According to the results, SETMAR showed increased expression in pediatric acute leukemia's bone marrow samples, indicating a role for this molecule in leukemia pathogenesis. As this is the first report of SETMAR expression in pediatric leukemias, further studies are needed to investigate the causality of this association.


Assuntos
Leucemia Mieloide Aguda , Animais , Camundongos , Humanos , Leucemia Mieloide Aguda/patologia , Doença Aguda , Translocação Genética , Histona-Lisina N-Metiltransferase/genética
12.
J Surg Oncol ; 127(5): 798-805, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-36576493

RESUMO

INTRODUCTION: Several techniques have been proposed for the closure of loop ileostomy. This is the first study comparing bowel function and outcomes of two different hand-sewn surgical techniques used for the closure of diverting protective loop ileostomy. METHOD: In this prospective, randomized, double-blind clinical trial, 40 patients with a history of rectal cancer, low anterior resection, and diverting loop ileostomy who were candidates for ileostomy reversal were included and randomly assigned into two groups, hand-sewn direct repair of the ileal defect (group A) and resection and hand-sewn anastomosis of the ileum (group B). RESULTS: The mean age of patients was 56.42 and 52.10 years in groups A and B, respectively. Regarding early postoperative period, group A developed earlier first gas passage (1.68 vs. 2.25 days, p = 0.041) and stool passage (2.10 vs. 2.80 days, p = 0.032). Group A also revealed shorter operating time (83.68 vs. 89.50 min, p = 0.040) and hospital stay (4.73 vs. 6.80 days, p = 0.001). None of the participants in both groups developed signs of bowel obstruction during the early and late postoperative follow-up period. CONCLUSIONS: Direct hand-sewn repair for the closure of diverting loop ileostomy is a safe technique with better postoperative bowel function, oral diet tolerance, and less hospital stay compared to resection and hand-sewn anastomosis of the ileum.


Assuntos
Ileostomia , Neoplasias Retais , Humanos , Ileostomia/métodos , Estudos Prospectivos , Técnicas de Sutura , Anastomose Cirúrgica/métodos , Íleo/cirurgia , Neoplasias Retais/cirurgia , Complicações Pós-Operatórias/cirurgia
13.
Gastroenterol Rep (Oxf) ; 10: goac075, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36518984

RESUMO

Background: Exosome administration is a novel medical approach that promises excellent immunomodulatory properties without the conventional side effects of current antitumor necrosis factor drugs and stem cells. This study aimed to assess the safety and efficacy of using mesenchymal stem cell (MSC) exosomes to treat refractory fistulas in patients with inflammatory bowel disease. Methods: MSCs were derived from the umbilical cords and their exosomes were isolated. Five patients with refractory perianal Crohn's disease fistulas with a median age of 35 years (range 31-47 years) were enrolled in the study. Exosome injections were administered in the operating room to patients with refractory fistula (fistulas that are irresponsive to anti-tumor necrosis factor-α administration within 6 months). Six months later, a physical examination, face-to-face interviews, and magnetic resonance imaging were employed to evaluate the therapy responses of patients. Results: The outcomes within 6 months after initiation of therapy showed that four patients had responded to therapy. Three patients who received exosome injections exhibited complete healing, while one reported no improvement and active discharge from the fistula site. In addition, five patients (100%) reported neither systemic nor local adverse effects. Conclusions: Injection of exosomes extracted from MSCs demonstrates safety and a satisfactory therapeutic effect, as evidenced in this and other studies, and may play a significant role in the future treatment of gastrointestinal fistulas.

14.
Med J Islam Repub Iran ; 36: 139, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36479535

RESUMO

Background: The growing incidence of colorectal cancer around the world highlights the significance of tumor recurrence and patient survival as 2 key elements of patient therapy. We aimed to study the factors linked with disease recurrence and survival in colon cancer. Methods: Patients with colon cancer who underwent tumor excision as their primary treatment were enrolled in this prospective cohort and monitored for 10 years. Various demographic and clinicopathologic factors of these patients were studied in association with the 2 primary outcomes of this study, including tumor recurrence and patient survival. Statistical tests and survival analysis were utilized to explore the study aims. Results: An overall number of 113 patients were included in this survey with a mean age of 54.7 (±SD, 14.1), and most of the patients were men (56.6%). The mean follow-up period was 28.3 (±25.5) months. Tumor recurrence occurred in 32 (28.3%) patients in the study period. The estimated mean survival of patients was 54.9 (95% CI, 45.3-64.4) months. N staging ( p = 0.036), T staging ( p = 0.009), and pathologic staging (P = .004) were the significant pathological factors to higher tumor recurrence and lower survival rates. Conclusion: Advanced tumor staging led to increased disease recurrence and lower survival of colon cancer patients in this survey. Further public health screening and education programs are needed to improve the early detection and prognosis of these patients in Iran.

15.
Med J Islam Repub Iran ; 36: 99, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36419945

RESUMO

Background: The autophagy machinery is reported to be employed by Coronaviruses during their replication. Beclin-1 (BECN1) and protein 1 light chain 3 (LC3) are two key elements in the autophagy process, and their inhibition can prevent the replication of some coronaviruses in vitro. Here, we aimed to investigate the expression levels of Beclin-1 and LC3 in COVID-19 patients and healthy controls, hoping to find new therapeutic targets. Methods: This cross-sectional study was conducted in Imam Reza and Ghaem University Hospitals, Mashhad, Iran. Nasopharyngeal samples of 68 consecutive Covid-19 patients and 61 healthy controls, who have been referred to the laboratories for COVID-19 PCR testing between 21 March to 21 September 2021, were used in order to evaluate the expression of BECN1 and LC3 genes using the Real-time quantitative PCR method. Demographic and other laboratory findings of patients were extracted from the hospital electronic system. SPSS Statistics 16.0 and Graph Pad Prism 8.4.2 soft wares were used for statistical analysis. Non-parametric tests were used. Results: BECN1 expression was significantly higher in COVID-19 patients compared to the controls (14.37±18.84 vs. 4.26±7.39, p=0.001). The expression of LC3 gene was significantly lower in patients compared to the controls (1.01±1.06 vs. 1.49±1.12, p=0.007). There was no significant correlation between the expression levels of BECN1 and LC3. Patients with lower BECN1 expression showed significantly higher RBC counts, higher Urea and lower HCO3 levels. The patients in LC3Low group showed significantly lower MCH, MCHC and PH levels compared to the others. Conclusion: Regarding the significant difference in the expression of BECN1 and LC3 in COVID-19 patients compared to the controls, these molecules may have a role in the pathogenesis of this disease. In case of further confirmation of this role, these molecules may be used as possible therapeutic targets.

16.
Ann Coloproctol ; 2022 Oct 11.
Artigo em Inglês | MEDLINE | ID: mdl-36217809

RESUMO

Purpose: Retrorectal tumors (RTs) are rare tumors that arise in the space between the mesorectum and the pelvic wall and often originate in embryonic tissues. The primary treatment for these tumors is complete excision surgery, and choosing the best surgical approach is very important. Methods: In this study, we retrospectively collected the data of 15 patients with RTs who underwent surgery in the surgical ward of Imam Khomeini Hospital in Tehran for 12 years to share our experiences of patients' treatment and compare different surgical approaches. Results: A total of 5 tumors were malignant, 10 were benign, and most of the tumors were congenital. Malignant tumors were seen in older patients. Three surgical procedures were performed on patients. Three patients underwent abdominal approach surgery, and 8 patients underwent posterior surgery. A combined surgical approach was performed on 4 patients. Two patients underwent laparoscopic surgery. The abdominal approach had the least long-term complication, and the combined approach had the most complications; laparoscopic surgery reduced the length of hospital stay and complications after surgery. Conclusion: A multidisciplinary team collaboration using magnetic resonance imaging details is necessary to determine a surgical treatment approach. It could reduce the need for a preoperative biopsy. However, every approach has its advantages and disadvantages. In the main, they have no superiority over each other, and individualized treatment is the key.

17.
Dose Response ; 20(3): 15593258221124479, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36158737

RESUMO

Objectives: Adult T-cell leukemia/lymphoma (ATLL) is a blood neoplasm with specific geographic distribution. Although radiotherapy is a palliative treatment that provides long-term local control, single use of radiation leads to complications for patients. To introduce a novel multimodal approach against ATLL, we investigated combinatorial effects of 7-geranyloxycoumarin and radiation in vitro. Methods: Viability of MT-2 cells was determined by resazurin assay upon administration of 7-geranyloxycoumarin alone and followed by radiation. Then, apoptosis was detected by annexin V and propidium iodide, and the expression of candidate genes was analyzed by qPCR. Results: Findings revealed significant (P<.0001) improvement in radiation effects upon 7-geranyloxycoumarin pretreatment, most notably when cells were pretreated with 5 µg/ml 7-geranyloxycoumarin for 96 h, exposed to 6 Gy radiation and recovered for 48 h. These results were confirmed by flow cytometry, as the percentage of early and late apoptotic cells was increased after combinatorial treatment. In addition, significant (P< .0001) changes in CD44, c-MYC, cFLIPL, BMI-1, NF-κB (Rel A), and P53 expression was induced by 7-geranyloxycoumarin and radiation. Conclusions: Current research indicated, for the first time, that combinatorial use of 7-geranyloxycoumarin and ionizing radiation could be considered as an effective therapeutic modality for ATLL.

18.
Tech Hand Up Extrem Surg ; 26(4): 276-281, 2022 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-35698302

RESUMO

The current surgical strategy for syndactyly is multistage operations in which every other web is released, leaving adjacent webs unoperated for the next stage to avoid a presumed possible digital vascular compromise. In this series, we present our experience with single-stage multiple syndactylies release. A total of 7 patients, including 2 patients with bilateral hand involvement, were included. Dorsal and volar triangular flaps were created for commissure reconstruction, and zigzag manner volar and dorsal incisions were made to release the webbed fingers. Sterile thermoplastic splints were molded directly over the skin grafts without any dressing or tie-over. Following the surgical operation, minimal flexion contracture was seen in three patients that needed future correction procedures. Cosmesis and functional outcome were acceptable. This study shows that the release of all webs in 1 setting can be accomplished by no vascular compromise, and there is no need for a preoperative vascular imaging study.


Assuntos
Procedimentos de Cirurgia Plástica , Sindactilia , Humanos , Seguimentos , Sindactilia/cirurgia , Retalhos Cirúrgicos , Transplante de Pele , Procedimentos de Cirurgia Plástica/métodos
19.
Leuk Res ; 115: 106807, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-35231756

RESUMO

BACKGROUND: Newly discovered evidence showed that long non-coding RNAs (lncRNAs) can play crucial roles in the development of cancer therapies. Nuclear Enriched Abundant Transcripts 1 (NEAT1) is one of the lncRNAs the expression of which changes in different cancers. The role of NEAT1 in apoptosis is discussed in various malignancies. This study aimed to determine the NEAT1 expression and its correlation with P53, PTEN, and BCL-2 genes expression in acute myeloid leukemia (AML) patients. METHOD: In this study, using quantitative real-time polymerase chain reaction (qRT-PCR), we analyzed the expression of NEAT1, P53, PTEN, and BCL-2 genes in 21 AML patients. Moreover, relative quantification analysis was performed by delta-delta CT method (2 -ΔΔCT) method. RESULTS: Our results showed that NEAT1 expression was significantly lower in AML patients compared to healthy controls (P-value < 0.05). While a significant correlation was observed between the expression levels of NEAT1 and PTEN genes in AML patients (P-value < 0.05), there was no correlation between the expression levels of NEAT1 with P53 and BCL-2 (P-value > 0.05). CONCLUSION: According to the results, increased expression of NEAT1 gene may play a role in the apoptosis of AML cells, despite the oncogenic role in most solid tumors.


Assuntos
Leucemia Mieloide Aguda , MicroRNAs , RNA Longo não Codificante , Apoptose/genética , Genes bcl-2 , Humanos , Leucemia Mieloide Aguda/genética , Leucemia Mieloide Aguda/patologia , MicroRNAs/genética , PTEN Fosfo-Hidrolase/genética , PTEN Fosfo-Hidrolase/metabolismo , Proteínas Proto-Oncogênicas c-bcl-2 , RNA Longo não Codificante/genética , Proteína Supressora de Tumor p53/genética
20.
Ann Coloproctol ; 38(3): 230-234, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-34111349

RESUMO

PURPOSE: Anastomotic leakage, a known major postoperative complication, potentially leads to readmission, reoperation, and increased mortality rates in patients, such as rectal cancer patients following a low anterior resection (LAR). Currently, vacuum-assisted closure, as featured by B-Braun (B-Braun Medical B.V.), is already being used for the treatment of gastrointestinal leakages and fistulas. The main aim of this study was to introduce a novel method for creating a vacuum-assisted drain for the treatment of anastomotic leakage after LAR. METHODS: All 10 patients, who underwent LAR surgery from 2018 to 2019, were diagnosed with anastomotic leakage and had received neoadjuvant chemotherapy prior to surgery. Therefore, patients were treated with a handmade vacuum-assisted drain and were revisited every 5 to 7 days for further evaluations and drain replacement until leakage resolution. Physical features of cavity, time of diagnose, and duration of treatment were analyzed correspondingly. The handmade vacuum-assisted sponge drain was prepared for each patient in each session of follow-up. RESULTS: Eight out of 10 patients experienced complete closure of the defect. The mean delay time from the day of operation to the diagnosis of anastomotic leakage was 61.0±80.4 days while the mean time for leakage closure was 117.6±68.3 days. Eventually, 7 cases underwent ileostomy reversal with no complications during a 3-month follow-up. CONCLUSION: In this study, we evaluated the healing process of anastomotic leakage after the usage of a handmade vacuum-assisted sponge drain in a case series method. In our trial, we provided an innovative cost-benefit method easily applicable in the operating room.

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