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1.
Artigo em Inglês | MEDLINE | ID: mdl-39042513

RESUMO

BACKGROUND: Current literature concerning upper extremity amputations (UEAs) is very sparse. In this study, we conducted the first multicenter retrospective analysis aiming to identify risk factors associated with unfavorable outcomes in patients undergoing nontraumatic UEAs. METHODS: A retrospective cohort study was conducted using the National Surgical Quality Improvement Program database. Adult patients who underwent nontraumatic UEAs between 2005 and 2021 were divided into two cohorts based on whether they experienced 30-day major morbidity (MM). Thereafter, multivariable binary logistic regression analysis was used to identify risk factors of MM. RESULTS: From a total of 2984 cases, MM was observed in 8.7% of patients. Factors associated with MM included American Society of Anesthesiologists classes 3 (odds ratio [OR], 2.974 [1.862 to 4.748]) and 4 (OR, 4.736 [2.857 to 7.848]), being underweight (OR, 2.370 [1.251 to 4.491]), and suffering from insulin-dependent diabetes (OR, 1.390 [1.018 to 1.898]). In addition, an infectious surgical indication was associated with an increased risk of MM compared with having a benign (OR, 0.648 [0.488 to 0.682]) or malignant (OR, 0.205 [0.091 to 0.462]) indication. Moreover, patients undergoing shoulder amputations were at an increased risk of MM compared with those undergoing amputations of the forearm/wrist (OR, 0.243 [0.072 to 0.819]) and hands/fingers (OR, 0.286 [0.095 to 0.861]). CONCLUSION: The risk factors identified for MM after nontraumatic UEAs should guide surgeons toward appropriately identifying high-risk patients and adequately counseling them preoperatively.


Assuntos
Amputação Cirúrgica , Extremidade Superior , Humanos , Estudos Retrospectivos , Masculino , Feminino , Extremidade Superior/cirurgia , Pessoa de Meia-Idade , Idoso , Fatores de Risco , Estudos Longitudinais , Complicações Pós-Operatórias/epidemiologia , Resultado do Tratamento , Adulto
2.
BMC Surg ; 24(1): 192, 2024 Jun 20.
Artigo em Inglês | MEDLINE | ID: mdl-38902655

RESUMO

BACKGROUND: Temporary abdominal closure (TAC) techniques are essential in managing open abdomen cases, particularly in damage control surgery. Skin-only closure (SC) and Bogota bag closure (BBC) are commonly used methods for TAC, but their comparative effectiveness in achieving primary fascial closure (PFC) remains unclear. The objective of this study was to evaluate the rates of PFC between patients undergoing SC and BBC techniques for TAC in peritonitis or abdominal trauma cases at a tertiary care hospital. METHODS: A retrospective cross-sectional study was conducted at the Surgical A Unit of Hayatabad Medical Complex, Peshawar, from January 2022 to July 2023. Approval was obtained from the institutional review board, and patient consent was secured for data use. Patients undergoing temporary abdominal closure using either skin-only or Bogota bag techniques were included. Exclusions comprised patients younger than 15 or older than 75 years, those with multiple abdominal wall incisions, and those with prior abdominal surgeries. Data analysis utilized SPSS version 25. The study aimed to assess outcomes following damage control surgery, focusing on primary fascial closure rates and associated factors. Closure techniques (skin-only and Bogota bag) were chosen based on institutional protocols and clinical context. Indications for damage control surgery (DCS) included traumatic and non-traumatic emergencies. Intra-abdominal pressure (IAP) was measured using standardized methods. Patients were divided into SC and BBC groups for comparison. Criteria for reoperation and primary fascial closure were established, with timing and technique determined based on clinical assessment and multidisciplinary team collaboration. The decision to leave patients open during the index operation followed damage control surgery principles. RESULTS: A total of 193 patients were included in this study, with 59.0% undergoing skin-only closure (SC) and 41.0% receiving Bogota bag closure (BBC). Patients exhibited similar demographic characteristics across cohorts, with a majority being male (73.1%) and experiencing acute abdomen of non-traumatic origin (58.0%). Among the reasons for leaving the abdomen open, severe intra-abdominal sepsis affected 51.3% of patients, while 42.0% experienced hemodynamic instability. Patients who received SC had significantly higher rates of primary fascial closure (PFC) compared to BBC (85.1% vs. 65.8%, p = 0.04), with lower rates of fascial dehiscence (1.7% vs. 7.6%, p = 0.052) and wound infections (p = 0.010). Multivariate regression analysis showed SC was associated with a higher likelihood of achieving PFC compared to BBC (adjusted OR = 1.7, 95% CI: 1.3-3.8, p < 0.05). CONCLUSION: In patients with peritonitis or abdominal trauma, SC demonstrated higher rates of PFC compared to BBC for TAC in our study population. However, further studies are warranted to validate these results and explore the long-term outcomes associated with different TAC techniques.


Assuntos
Traumatismos Abdominais , Técnicas de Fechamento de Ferimentos Abdominais , Fasciotomia , Humanos , Estudos Retrospectivos , Masculino , Feminino , Estudos Transversais , Adulto , Pessoa de Meia-Idade , Traumatismos Abdominais/cirurgia , Fasciotomia/métodos , Peritonite/cirurgia , Peritonite/etiologia
3.
RSC Adv ; 13(32): 22268-22280, 2023 Jul 19.
Artigo em Inglês | MEDLINE | ID: mdl-37492507

RESUMO

Curcumin is an extensively studied natural compound due to its extensive biological applications. However, there are some drawbacks linked to this compound such as poor absorption, low water-solubility, quick systemic elimination, fast metabolism, poor pharmacokinetics, low bioavailability, low penetration targeting efficacy and low stability. To overcome these drawbacks, curcumin is encapsulated in nano-carriers. In the current studies, we synthesized nanoparticles of curcumin without using nanocarriers by different methods such as nano-suspension (Cur-NSM), sonication (Cur-SM) and anti-solvent precipitation (Cur-ASP) to enhance the solubility of curcumin in water. The prepared nanoparticles were characterized by FTIR, SEM and XRD analysis. These curcumin nanoparticles were screened for their solubilities in water, DPPH scavenging, amylase, α-glucosidase and ß-glucosidase enzymatic activities. The particle size of nano-curcumin was found to be in the 47.4-98.7 nm range. The reduction in particle size of curcumin dramatically increases its solubility in water to 79.2 µg mL-1, whereas the solubility of curcumin is just 0.98 µg mL-1. Cur-ASP showed the highest free radical scavenging potential (48.84 ± 0.98%) which was comparable with standard BHT (50.48 ± 1.11%) at 75.0 µg mL-1. As well, Cur-ASP showed the highest inhibition of α-amylase (68.67 ± 1.02%), α-glucosidase (58.30 ± 0.52%), and ß-glucosidase (64.80 ± 0.43%) at 100 µg mL-1 which is comparable with standard drug acarbose. The greater surface area of nanoparticles exposes the various groups of curcumin for blocking the binding sites of enzymes. This strategy may be helpful in designing curcumin as a potent therapeutic agent against diabetes mellitus. Further, the molecular interactions of curcumin with α-amylase, α-glucosidase, ß-glucosidase, and polyphenol oxidase were assessed by analyzing the plausible binding modes of curcumin in the binding pocket of each receptor. The best binding mode of curcumin was used to make complexes with the target proteins and their stability was confirmed by 50 ns MD simulation.

4.
S D Med ; 75(6): 274-277, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-36206569

RESUMO

Pulmonary tumor thrombotic microangiopathy (PTTM) is a pulmonary hypertensive arteriopathy thought to be caused by activation of the coagulation cascade at the surface of circulating tumor microemboli along with intimal proliferation in small pulmonary arteries in patients with metastatic carcinomas. The subsequent stenosis of the pulmonary vasculature leads to pulmonary hypertension (PH) and, cor pulmonale with eventual respiratory compromise leading to respiratory failure. PTTM is always a nearly fatal disease with most cases diagnosed postmortem. Most cases reported on this condition are from Japan where the incidence of gastric malignancy is relatively higher than other parts of the world. We report a case of a Caucasian man with a classic presentation of PTTM to help make physicians aware of this rare, rapidly progressive and usually fatal phenomenon.


Assuntos
Hipertensão Pulmonar , Neoplasias Pulmonares , Microangiopatias Trombóticas , Autopsia , Humanos , Hipertensão Pulmonar/etiologia , Neoplasias Pulmonares/complicações , Neoplasias Pulmonares/diagnóstico , Neoplasias Pulmonares/patologia , Masculino , Microangiopatias Trombóticas/diagnóstico , Microangiopatias Trombóticas/etiologia , Microangiopatias Trombóticas/patologia
5.
J Mol Histol ; 53(6): 883-890, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36100803

RESUMO

COVID-19 is a contagious disease that attacks many organs but the lungs are the main organs affected. The inflammasome activation results in the exacerbation of inflammatory response in infectious disease. The aim of this study is to investigate the formation and activity of the NLRP3 inflammasome complex and the histopathological changes caused by the coronavirus in the lung of deceased persons with COVID-19. In total, 10 corpses; 5 corpses with no history of any infectious diseases and COVID-19 and 5 corpses with the cause of death of COVID-19 were included in this study. Lung tissue samples were harvested during autopsy under safe conditions. Fresh tissues in each group were used to measure the genes expression and proteins level of NLRP3, ASC, Caspase-1, IL-1ß, IL-6 and TNF-α and a routine hematoxylin and eosin staining was performed for histological assessment. Data are represented as the means ± SD. Statistical significance difference was accepted at a p-value less than 5%. The NLRP3, ASC, Caspase-1, IL-1ß, IL-6 and TNF-α genes expression and proteins level were elevated in the lung of the COVID-19 group in comparison with the control group. Histological findings presented the increasing number of polymorphonuclear leukocytes, macrophages and also pulmonary fibrosis in the lungs of corpses with the cause of death of COVID-19. High expression of NLRP3 inflammasome components and its relation with the pathophysiology of the coronavirus-infected lung suggested that targeting the NLRP3 inflammasome could be helpful in achieving a more effective treatment in patients with COVID-19.


Assuntos
COVID-19 , Inflamassomos , Pulmão , Humanos , Cadáver , Caspase 1/metabolismo , COVID-19/patologia , Inflamassomos/metabolismo , Interleucina-6 , Pulmão/patologia , Proteína 3 que Contém Domínio de Pirina da Família NLR/metabolismo , Fator de Necrose Tumoral alfa
6.
J Pharm Sci ; 111(5): 1509-1521, 2022 05.
Artigo em Inglês | MEDLINE | ID: mdl-34999090

RESUMO

TNFα and NF-kB contribute in activation of pro-inflammatory signaling pathways and complications of coronary artery diseases (CAD). Current study highlights novel properties of Au (15 ± 2 nm), ZnO (77 ± 45 nm) and MgO (11 ± 4 nm) nanoparticles (NPs) as possible anti-inflammatory agents with greater efficacy and lower toxicity. Decrease in TNFα and NF-kB levels in Single Vessel Disease (SVD), Double Vessel Disease (DVD) and Triple-Vessel coronary artery disease (TVD) macrophage and lymphocyte cultures at varying concentrations of NPs has been studied to find an effective therapeutic concentration (ETC). Au and MgO NPs exhibits 5 µg/ml ETC compared to 1 µg/ml ZnO in all three CAD categories with negligible toxicity. ZnO remains most statistically significant (p < 0.001) in SVD and TVD cultures whereas MgO shows efficacy in DVD and TVD cultures with more than 50% reduction in TNFα and NF-kB levels at their respective ETCs. Au NPs exhibit prominent effect in DVD cultures. The mRNA expression results support the down-regulation of TNFα and NF-kB after NPs exposure in respective cultures. Findings of this prospective observational cohort study suggest use of NPs as an alternate anti-inflammatory agent in coronary artery and other diseases.


Assuntos
Doença da Artéria Coronariana , Nanopartículas , Óxido de Zinco , Anti-Inflamatórios/metabolismo , Anti-Inflamatórios/farmacologia , Doença da Artéria Coronariana/tratamento farmacológico , Doença da Artéria Coronariana/metabolismo , Citocinas/metabolismo , Humanos , Linfócitos/metabolismo , Macrófagos/metabolismo , Óxido de Magnésio/metabolismo , NF-kappa B/metabolismo , Nanopartículas/toxicidade , Estudos Prospectivos , Fator de Necrose Tumoral alfa/metabolismo
7.
S D Med ; 75(8): 357-360, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-36745983

RESUMO

Proteus mirabilis, a gram-negative bacterium commonly known for causing urinary tract infections (UTI) can rarely present with central nervous system (CNS) infections. Proteus mirabilis CNS infections are usually encountered in the neonatal and infantile period and occasionally cause brain abscesses. It is an uncommon cause of adult CNS infection. We report the first case of a community-acquired Proteus mirabilis meningitis (PMM) in a patient with Proteus mirabilis UTI, urolithiasis, and bacteremia. Risk factors for gram-negative bacillary meningitis (GNBM) include extremes of age, cancer history, diabetes mellitus, UTI, and nosocomial exposure, with the latter being a more prominent cause of PMM. Compromise of the anatomical defense against CNS infections whether accidental or neurosurgical is another important cause, and approximately two-thirds of reported cases of PMM have occurred after neurosurgical procedures. PMM patients develop fever, altered consciousness, and have an acute clinical course. Antimicrobials that can be used for treatment include third-generation cephalosporins, ciprofloxacin, imipenem/ cilastatin, aztreonam, and intraventricular aminoglycosides. Despite appropriate antibiotic therapy outcomes are poor with severe neurological deficit and death commonly resulting. Nosocomial infections can be drug-resistant and multiple antibiotics should be started while awaiting culture results. Literature review reveals that treatment with intraventricular aminoglycosides when attempted has shown bacteriological cure indicating this can be an important treatment approach. Due to the acute clinical course and high morbidity and mortality, we recommend starting multiple antibiotics with different mechanisms of action as soon as the disease is suspected. Our patient was initially started on ceftriaxone, vancomycin, acyclovir, and ampicillin for UTI and meningoencephalitis. The antibiotics were later consolidated to cefepime based on blood, urine and, cerebrospinal fluid cultures growing pan-sensitive Proteus mirabilis. Her clinical condition continued to worsen and ciprofloxacin was added. However, due to the progressive decline in her condition, the family elected for inpatient hospice care and intraventricular aminoglycosides were not attempted.


Assuntos
Meningites Bacterianas , Infecções por Proteus , Infecções Urinárias , Humanos , Adulto , Feminino , Recém-Nascido , Proteus mirabilis , Meningites Bacterianas/diagnóstico , Meningites Bacterianas/tratamento farmacológico , Meningites Bacterianas/microbiologia , Antibacterianos/uso terapêutico , Infecções por Proteus/diagnóstico , Infecções por Proteus/tratamento farmacológico , Infecções Urinárias/tratamento farmacológico , Infecções Urinárias/microbiologia , Progressão da Doença , Ciprofloxacina/uso terapêutico , Aminoglicosídeos/uso terapêutico
10.
Pract Radiat Oncol ; 11(4): e402-e414, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33823321

RESUMO

PURPOSE: Radiation therapy (RT) in patients with cardiac implantable electronic devices (CIED) carries a risk of device malfunction from radiation exposure. We sought to evaluate the incidence of CIED malfunction in a cohort of patients treated with modern RT techniques. METHODS AND MATERIALS: A retrospective analysis of 193 CIED patients treated with RT between 2000 and 2018 was conducted. All patients underwent pre-, intra-, and post-RT CIED interrogations. Patient demographics, CIED details, RT details, including total dose, modality, treatment site, CIED distance from RT field, treatment planning system maximum dose and in vivo dose estimates, and CIED malfunction data were analyzed. RESULTS: CIEDs in use were mainly pacemakers (single-chamber 10%, dual-chamber 49%) and defibrillators (35%). Patients received a median RT dose of 50 Gy (range, 7-80 Gy), treated with 3-dimensional CRT (47%), intensity modulated RT/volumetric modulated arc therapy (38%), and stereotactic body radiation therapy (10%). Neutron producing energies were used in 13% of the treatments. A strong correlation was noted between treatment planning system estimated maximum dose and in vivo estimated CIED dose when the CIED distance from the treatment field was >3 cm. However, in vivo measurements provide a lower estimated absorbed dose for CIED devices <3 cm from the RT field. During a median follow-up of 24 months (range, 7-64 months), 2 adverse CIED-related events were recorded: a spontaneous defibrillator discharge and a pacemaker malfunction subsequently causing ventricular tachycardia. Both patients received stereotactic body radiation therapy to the thorax, with CIED dose of 5 and 19.2 cGy, respectively. Both events occurred 2 years posttreatment without any intra- or post-RT CIED interrogations changes noted. CONCLUSIONS: In this series of patients treated with modern RT techniques, we observed a CIED malfunction rate of 1.04%. These low event rates establish the safety of delivering modern RT in CIED patients with the possibility of reducing the burden of intra- and posttreatment CIED monitoring.


Assuntos
Desfibriladores Implantáveis , Marca-Passo Artificial , Radioterapia de Intensidade Modulada , Eletrônica , Humanos , Estudos Retrospectivos , Estados Unidos
11.
J Racial Ethn Health Disparities ; 8(4): 1035-1046, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-32888170

RESUMO

Triple negative breast cancers (TNBC) behave more aggressively than hormone-receptor positive breast cancers. They are also known preferentially to affect young black women, often leading to poorer outcomes compared with those for white women. We sought to evaluate the comprehensive patterns of failure associated with treatment for TNBC at an urban institution with a predominantly black population and to assess the impact of social determinants of health on treatment failure. A retrospective review of TNBC patients treated from 2005 to 2015 was conducted. Detailed patient, tumor, and treatment characteristics and information on patterns of failure were included. With a median follow-up of 46 months, 32 (16%) documented failures occurred. Locoregional failures comprised 84% of failure patterns whether isolated or in combination with distant failure. Treatment failure was associated with insurance type and smoking status, as well as several tumor characteristics. On multivariate analysis, pathologic nodal staging was the most significant predictor of treatment failure. In contrast to previous studies, we found that black women had higher overall survival than white women, but race was not associated with differences in recurrence patterns or with likelihood of treatment failure. Regardless of race, of the patients who recurred, 53% failed in distant and locoregional sites simultaneously, with an additional 34% failing locally only. These results highlight the need for aggressive local therapies in high-risk patients and suggest a need for improved follow-up focusing on detecting locoregional failures. Multidisciplinary care is essential in the management of these patients at time of failure.


Assuntos
Negro ou Afro-Americano/estatística & dados numéricos , Falha de Tratamento , Neoplasias de Mama Triplo Negativas/etnologia , Neoplasias de Mama Triplo Negativas/terapia , População Urbana/estatística & dados numéricos , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Disparidades nos Níveis de Saúde , Humanos , Pessoa de Meia-Idade , Estudos Retrospectivos , Adulto Jovem
12.
J Biomol Struct Dyn ; 39(11): 4089-4099, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-32567487

RESUMO

An rare pandemic of viral pneumonia occurs in December 2019 in Wuhan, China, which is now recognized internationally as Corona Virus Disease 2019 (COVID-19), the etiological agent classified as Severe Acute Respiratory Syndrome Corona Virus 2 (SARS-CoV-2). According to the World Health Organization (WHO), it has so far expanded to more than 213 countries/territories worldwide. Our study aims to find the viral peptides of SARS-COV-2 by peptide mass fingerprinting (PMF) in order to predict its novel structure and find an inhibitor for each viral peptide. For this reason, we calculated the mass of amino acid sequences translated from the SARS-CoV2 whole genome and identify the peptides that may be a target for inhibition. Molecular peptide docking with Moringa oleifera, phytochemicals (aqueous and ethanolic) leaf extracts of flavonoids (3.56 ± 0.03), (3.83 ± 0.02), anthraquinone (11.68 ± 0.04), (10.86 ± 0.06) and hydroxychloroquine present therapy of COVID-19 in Pakistan for comparative study. Results indicate that 15 peptides of SARS-CoV2 have been identified from PMF, which is then used as a selective inhibitor. The maximum energy obtained from AutoDock Vina for hydroxychloroquine is -5.1 kcal/mol, kaempferol (flavonoid) is -6.2 kcal/mol, and for anthraquinone -6 kcal/mol. Visualization of docking complex, important effects are observed regarding the binding of peptides to drug compounds. In conclusion, it is proposed that these compounds are effective antiviral agents against COVID-19 and can be used in clinical trials.Communicated by Ramaswamy H. Sarma.


Assuntos
Tratamento Farmacológico da COVID-19 , Moringa oleifera , Antraquinonas , Flavonoides/farmacologia , Humanos , Hidroxicloroquina , Peptídeos , RNA Viral , SARS-CoV-2
13.
S D Med ; 73(6): 270-274, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32580260

RESUMO

A 43-year-old woman, with an unremarkable past medical history, presented with a three-week history of generalized itching, jaundice, and abdominal pain. Initial workup showed amorphous, regionally invasive, and obstructing soft tissue mass in the region of the hepatic hilum. The middle third of the main bile duct was subsequently found to harbor a polypoid mass on endoscopic retrograde cholangiopancreatograph. Biopsy revealed nests of neoplastic cells that was subsequently identified as well-differentiated neuroendocrine tumor. A search for a possible primary neuroendocrine tumor was performed and included imaging of the chest, abdomen, and pelvis, a colonoscopy, capsule endoscopy, and an octreotide scan; however, no primary tumor outside of the liver was identified. Surgical debulking was performed, during which intraoperative exploration and ultrasound failed to reveal any extra-hepatic tumor sanctuaries. A few months later, patient underwent endoscopic ultrasound (EUS) for evaluation of recurrent abdominal pain which revealed a small lesion in the pancreas. It was unclear, however, whether it was primary or a metastatic lesion. This case represents a diagnostic challenge and emphasizes the potential utility of EUS in the preoperative work up for any presumable primary hepatobiliary neuroendocrine tumor.


Assuntos
Neoplasias Hepáticas , Tumores Neuroendócrinos , Adulto , Biópsia , Endossonografia , Feminino , Humanos , Neoplasias Hepáticas/diagnóstico por imagem , Tumores Neuroendócrinos/diagnóstico por imagem , Pâncreas
15.
J Pak Med Assoc ; 70(3): 534-536, 2020 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-32207442

RESUMO

Dermoid cyst of the ovary is a common benign condition. It is usually asymptomatic but can present with pain, mass, hormone related symptoms or paraneoplastic syndrome. Hair is a common morphological component of the dermoid cyst; however, it rarely manifests as a presenting complain. We report a case, who presented with the complaints of hair coming out through her anal orifice for a year. Ultrasound and computed tomography scan revealed a dermoid cyst of the right ovary adherent to the rectum. Surgical removal showed hair coming out of the cyst. Primary repair of the defect in rectal wall was performed which resulted in resolution of the symptoms.


Assuntos
Neoplasias Ovarianas , Ovariectomia/métodos , Ovário , Fístula Retal , Reto , Teratoma , Adulto , Canal Anal , Feminino , Cabelo , Humanos , Neoplasias Ovarianas/complicações , Neoplasias Ovarianas/diagnóstico , Neoplasias Ovarianas/fisiopatologia , Neoplasias Ovarianas/cirurgia , Ovário/diagnóstico por imagem , Ovário/cirurgia , Procedimentos de Cirurgia Plástica/métodos , Fístula Retal/etiologia , Fístula Retal/fisiopatologia , Fístula Retal/cirurgia , Reto/diagnóstico por imagem , Reto/cirurgia , Teratoma/complicações , Teratoma/diagnóstico , Teratoma/fisiopatologia , Teratoma/cirurgia , Tomografia Computadorizada por Raios X/métodos , Resultado do Tratamento , Ultrassonografia/métodos
16.
PLoS One ; 14(12): e0225876, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31794580

RESUMO

Begomoviruses interfere with host plant machinery to evade host defense mechanism by interacting with plant proteins. In the old world, this group of viruses are usually associated with betasatellite that induces severe disease symptoms by encoding a protein, ßC1, which is a pathogenicity determinant. Here, we show that ßC1 encoded by Cotton leaf curl Multan betasatellite (CLCuMB) requires Gossypium hirsutum calmodulin-like protein 11 (Gh-CML11) to infect cotton. First, we used the in silico approach to predict the interaction of CLCuMB-ßC1 with Gh-CML11. A number of sequence- and structure-based in-silico interaction prediction techniques suggested a strong putative binding of CLCuMB-ßC1 with Gh-CML11 in a Ca+2-dependent manner. In-silico interaction prediction was then confirmed by three different experimental approaches: The Gh-CML11 interaction was confirmed using CLCuMB-ßC1 in a yeast two hybrid system and pull down assay. These results were further validated using bimolecular fluorescence complementation system showing the interaction in cytoplasmic veins of Nicotiana benthamiana. Bioinformatics and molecular studies suggested that CLCuMB-ßC1 induces the overexpression of Gh-CML11 protein and ultimately provides calcium as a nutrient source for virus movement and transmission. This is the first comprehensive study on the interaction between CLCuMB-ßC1 and Gh-CML11 proteins which provided insights into our understating of the role of ßC1 in cotton leaf curl disease.


Assuntos
Begomovirus/metabolismo , Calmodulina , Gossypium , Doenças das Plantas , Proteínas de Plantas , Calmodulina/genética , Calmodulina/metabolismo , Gossypium/genética , Gossypium/metabolismo , Gossypium/virologia , Doenças das Plantas/genética , Doenças das Plantas/virologia , Proteínas de Plantas/genética , Proteínas de Plantas/metabolismo , Nicotiana/genética , Nicotiana/metabolismo , Nicotiana/virologia
17.
Cureus ; 11(5): e4776, 2019 May 29.
Artigo em Inglês | MEDLINE | ID: mdl-31367494

RESUMO

Introduction Surgical antimicrobial prophylaxis (SAP) means the administration of antibiotics in surgical practice, and it reduces the likelihood of surgical site infections (SSIs). Inappropriate SAP practice regarding the prescription, timing, and duration of antibiotic use prolongs the hospital stay of patients, increases patient morbidity (by exposing them to the adverse effects of antibiotics), promotes bacterial resistance, and puts an economic burden on health care. While developed countries regularly monitor and revise their SAP protocols, there are only a few such researches in developing countries, which is a major setback to proper surgical care. Objectives of the study This study aims to compare the practice of SAP in a tertiary health care hospital of a developing country Pakistan, with internationally recommended protocols and evaluate the impact of knowledge of international guidelines on SAP practice. The results of the study will highlight important shortcomings in prophylactic practice in the hospital and help develop recommendations to improve SAP practice and ensure better surgical care for patients. Materials and methods An observational, cross-sectional study was conducted in the general surgery unit of Holy Family Hospital (HFH), Rawalpindi, Pakistan, from March 2017 to November 2017 during which antimicrobial prophylaxis of 150 general surgery procedures was documented on the basis of six international SAP criteria, which were "indication for use of prophylaxis, timing of preoperative dose, choice of drug, route of administration, duration of postoperative prophylaxis, and the assessment of beta-lactam allergy." The compliance rate (number of procedures following all the six criteria) was calculated for each operating surgical resident. A questionnaire was formulated that assessed the knowledge of 33 surgical residents working at that time regarding the above- mentioned six variables of SAP by six close-ended questions. Their responses were then compared to their compliance rate by chi-square analysis and binary logistic regression in SPSS version 23 (IBM Corp, Armonk, NY, US). A p-value of less than or equal to 0.05 was considered significant. The required ethical approval was obtained from the departmental heads as well as institutional research forum. Results Seventy-four of 150 observed procedures followed all the six international criteria of SAP, giving a compliance rate of 49.33%. Seventeen out of 33 (51%) surgical residents were aware of the guidelines. A chi-square analysis revealed a highly significant association between the awareness of guidelines and the number of compliant procedures performed by a resident (p<0.000). Forty-five out of 74 compliant procedures were performed by residents who were aware of the guidelines (61% of compliant procedures). The odds ratio for awareness and correct prophylaxis was 4.064 (p<0.000). Conclusions The study indicates an overall low compliance rate of 49.33% regarding surgical antimicrobial prophylaxis (SAP) practice in a public health care hospital of a developing country. The most common cause of non-compliance was prolonged postoperative prophylaxis. This study also shows that the knowledge of international guidelines significantly improves the prophylaxis practice by about four times. Hence, proper SAP compliance rate can be increased by actively educating and monitoring surgical residents.

18.
Breast Cancer Res Treat ; 175(2): 473-478, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-30796656

RESUMO

PURPOSE: We sought to identify trends over time with respect to the use of hypofractionated whole breast irradiation (HF-WBI) in women with triple negative breast cancer (TNBC) in the national cancer database (NCDB). METHODS: Trends in utilization of HF-WBI in women diagnosed with T1-2N0 TNBC in the NCDB between 2008 and 2013 were analyzed. Case-matched luminal A women were used for comparison. Variables included age, race, year of diagnosis, insurance status, income quartile, receipt of neoadjuvant chemotherapy, and institution (academic vs. community). Chi square, logistic regression, and multivariate analysis was performed. RESULTS: Utilization of HF-WBI among the 53,269 TNBC women identified steadily increased from 4.7% in 2008 to 14.0% in 2013 for women with TNBC compared to luminal A cancer whose utilization increased from 7.3 to 23.3% over the same time frame (p < 0.001). On univariate analysis, HF-WBI was associated with increasing age (p < 0.001), Medicare insurance (p < 0.001), race (p = 0.041), diagnosis after 2011 (p < 0.001), higher income quartile (p < 0.001), and treatment at academic institutions (p < 0.001). On multivariate analysis, age (p < 0.001, OR 1.038 per year), income quartile (p = 0.002, OR 1.061 per increase in quartile), treatment at an academic institution (p < 0.001, OR 1.78) significantly increased use of HF-WBI. CONCLUSIONS: Treatment at an academic center and year of diagnosis were most correlated with increased HF-WBI in T1-2N0 TNBC women in the NCDB from 2008 to 2013, followed by increasing age and income. Only 14% of T1-2N0 TNBC women received HF-WBI in 2013. Focus on increased utilization is needed for non-academic centers, lower income, and younger women.


Assuntos
Mama/efeitos da radiação , Hipofracionamento da Dose de Radiação , Radioterapia Adjuvante/métodos , Neoplasias de Mama Triplo Negativas/radioterapia , Idoso , Idoso de 80 Anos ou mais , Mama/patologia , Carcinoma Intraductal não Infiltrante , Bases de Dados Factuais , Feminino , Humanos , Mastectomia Segmentar , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Neoplasias de Mama Triplo Negativas/patologia , Neoplasias de Mama Triplo Negativas/cirurgia
19.
Cureus ; 11(11): e6151, 2019 Nov 14.
Artigo em Inglês | MEDLINE | ID: mdl-31890360

RESUMO

An arterial thrombus affecting the descending aorta, celiac artery, and superior mesenteric artery at the same time, resulting in mesenteric ischemia and splenic infarction, is a very rare phenomenon. We report a case of a 35-year-old, unmarried female, gravida 0 para 0, who presented with abdominal pain, vomiting, and constipation for two days. Computed tomography (CT) scan showed thrombi in the descending aorta to the celiac axis and superior mesenteric artery with splenic infarction, bowel ischemia, hepatic portal venous air, and uterine fibroid. The diagnosis of arterial thrombotic mesenteric ischemia was made. An exploratory laparotomy was performed. Gangrenous intestine resection was done with ileojejunostomy and feeding ileostomy.

20.
J Pak Med Assoc ; 68(9): 1316-1320, 2018 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-30317257

RESUMO

OBJECTIVE: To determine the frequency of reduction of pain in symptomatic knee osteoarthritis by using combination injections. METHODS: The experimental study was conducted from January 1, 2010, to December 31, 2016,at Al-Noor Surgery Hospital, Chakwal, Pakistan, and comprised patients suffering from symptomatic knee osteoarthritis. All patients were injected intra-articularly and peri-articularily with a combination of streptomycin, kenacort and lidocaine. The effects of this injection were recorded immediately after injection, after a month and after a year. Data was analyzed using SPSS 21. RESULTS: Of the 169 patients, there were 70(41.40%) males and 99(58.60%) females. The overall mean age and pain duration was 59.27±7.79 years and10.5±5.1 years respectively. No patient had pain immediately after the injection and after a month of follow-up. After a year, 145(86%) had a complete loss of pain compared to the baseline. Three (1.77%) patients required repetition of injection after a year. None of the patients suffered from septic arthritis or localised flare-ups and no one opted for knee joint arthoplasty. CONCLUSIONS: Combination of streptomycin, low-dose corticosteroids and lidocaine hadimmediate and prolonged effect in reducing pain in patients with knee osteoarthritis.


Assuntos
Injeções Intra-Articulares/métodos , Lidocaína/administração & dosagem , Osteoartrite do Joelho , Estreptomicina/administração & dosagem , Triancinolona Acetonida/administração & dosagem , Idoso , Anestésicos Locais/administração & dosagem , Antibacterianos/administração & dosagem , Anti-Inflamatórios/administração & dosagem , Feminino , Humanos , Articulação do Joelho/efeitos dos fármacos , Articulação do Joelho/patologia , Masculino , Pessoa de Meia-Idade , Osteoartrite do Joelho/diagnóstico , Osteoartrite do Joelho/tratamento farmacológico , Osteoartrite do Joelho/fisiopatologia , Manejo da Dor/métodos , Paquistão , Tempo , Resultado do Tratamento
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