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1.
Clin Infect Dis ; 79(4): 1010-1017, 2024 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-39106450

RESUMO

BACKGROUND: Hospital-acquired (HAP) and ventilator-associated pneumonia (VAP) are important complications early (<30 days) after lung transplantation (LT). However, current incidence, associated factors, and outcomes are not well reported. METHODS: LT recipients transplanted at our institution (July 2019-January 2020 and October 2021-November 2022) were prospectively included. We assessed incidence and presentation of pneumonia and evaluated the impact of associated factors using regression models. We also evaluated molecular relatedness of respiratory pathogens collected peri-transplant and at pneumonia occurrence using pulsed-field gel electrophoresis (PFGE). RESULTS: In the first 30 days post-LT, 25/270 (9.3%) recipients were diagnosed with pneumonia (68% [17/25] VAP; 32% [8/25] HAP). Median time to pneumonia was 11 days (IQR, 7-13); 49% (132/270) of donor and 16% (44/270) of recipient respiratory peri-transplant cultures were positive. However, pathogens associated with pneumonia were not genetically related to either donor or recipient cultures at transplant, as determined by PFGE. Diagnosed pulmonary hypertension (HR, 4.42; 95% CI, 1.62-12.08) and immunosuppression use (HR, 2.87; 95% CI, 1.30-6.56) were pre-transplant factors associated with pneumonia. Pneumonia occurrence was associated with longer hospital stay (HR, 5.44; 95% CI, 2.22-13.37) and VAP with longer ICU stay (HR, 4.31; 95% CI, 1.73-10.75) within the first 30 days post-transplantation; 30- and 90-day mortality were similar. CONCLUSIONS: Prospectively assessed early pneumonia incidence occurred in ∼10% of LT. Populations at increased risk for pneumonia occurrence include LT with pre-transplant pulmonary hypertension and pre-transplant immunosuppression. Pneumonia was associated with increased healthcare use, highlighting the need for further improvements by preferentially targeting higher-risk patients.


Assuntos
Transplante de Pulmão , Pneumonia Associada à Ventilação Mecânica , Humanos , Transplante de Pulmão/efeitos adversos , Pneumonia Associada à Ventilação Mecânica/epidemiologia , Pneumonia Associada à Ventilação Mecânica/microbiologia , Masculino , Feminino , Estudos Prospectivos , Pessoa de Meia-Idade , Incidência , Adulto , Fatores de Risco , Pneumonia Associada a Assistência à Saúde/epidemiologia , Pneumonia Associada a Assistência à Saúde/microbiologia , Idoso , Infecção Hospitalar/epidemiologia , Infecção Hospitalar/microbiologia
2.
AIDS Res Ther ; 21(1): 3, 2024 01 07.
Artigo em Inglês | MEDLINE | ID: mdl-38185638

RESUMO

BACKGROUND: Malakoplakia is a rare chronic granulomatous disease characterized by the presence of Michaelis-Gutmann bodies (MGBs) within histiocytic aggregates. It predominantly affects immunocompromised individuals, including those living with Human Immunodeficiency Virus (HIV). CASE PRESENTATION: We present a unique case of bifocal malakoplakia in a 49-year-old man, previously with Coronavirus disease 2019 (COVID-19) and HIV positive, presented with respiratory symptoms, weight loss, and lymphadenopathy. He had various infections including Non-Tuberculous Mycobacteria (NTM), Cytomegalovirus (CMV), and Candida, with evolving lung and gastrointestinal issues. Despite treatment attempts, he deteriorated due to respiratory distress, multi-organ failure, and coagulopathy, leading to his unfortunate demise. CONCLUSION: This report presents a distinctive and complex case of malakoplakia in an HIV-positive patient, a rare inflammatory disorder originally described by Michaelis and Gutmann in 1902. The hallmark Michaelis-Gutmann organisms were observed, confirming the diagnosis. While typically affecting the urinary tract, this case demonstrates the exceptional ability of malakoplakia to manifest in various organ systems, including pulmonary, gastrointestinal, and more. Although Escherichia coli is a prevalent associated pathogen, the exact cause remains elusive. Treatment, often involving surgical excision and antibiotic therapy, underscores the challenging nature of managing this condition in immunocompromised individuals.


Assuntos
COVID-19 , Infecções por HIV , Soropositividade para HIV , Malacoplasia , Masculino , Humanos , Pessoa de Meia-Idade , HIV , Infecções por HIV/complicações , COVID-19/complicações
3.
Molecules ; 27(16)2022 Aug 22.
Artigo em Inglês | MEDLINE | ID: mdl-36014572

RESUMO

Tuberculosis (TB) caused by the bacterial pathogen Mycobacterium tuberculosis (Mtb) remains a threat to mankind, with over a billion of deaths in the last two centuries. Recent advancements in science have contributed to an understanding of Mtb pathogenesis and developed effective control tools, including effective drugs to control the global pandemic. However, the emergence of drug resistant Mtb strains has seriously affected the TB eradication program around the world. There is, therefore, an urgent need to develop new drugs for TB treatment, which has grown researchers' interest in small molecule-based drug designing and development. The small molecules-based treatments hold significant potential to overcome drug resistance and even provide opportunities for multimodal therapy. In this context, various natural and synthetic flavonoids were reported for the effective treatment of TB. In this review, we have summarized the recent advancement in the understanding of Mtb pathogenesis and the importance of both natural and synthetic flavonoids against Mtb infection studied using in vitro and in silico methods. We have also included flavonoids that are able to inhibit the growth of non-tubercular mycobacterial organisms. Hence, understanding the therapeutic properties of flavonoids can be useful for the future treatment of TB.


Assuntos
Mycobacterium tuberculosis , Tuberculose , Antituberculosos/farmacologia , Antituberculosos/uso terapêutico , Sistemas de Liberação de Medicamentos , Flavonoides/farmacologia , Flavonoides/uso terapêutico , Humanos , Tuberculose/tratamento farmacológico , Tuberculose/microbiologia
4.
Infect Dis Clin Pract (Baltim Md) ; 29(6): e401-e403, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-34803347

RESUMO

Solid-organ transplant patients have a high risk of severe infection related to acute respiratory syndrome coronavirus-2 (SARS-Cov-2). This case represents a 54-year-old woman known as a diabetic, hypothyroidism, and a recent heart transplant recipient who presented with a 1-week history of cough and fatigue. She was hypoxic on presentation to the hospital and progressively declined and required invasive mechanical ventilation. She had respiratory distress and hypoxia and chest x-ray showed progressive bilateral chest infiltrates. She had leukopenia of 3.5 cells *109/L and lymphopenia of 0.2 cells *109/L. The inflammatory markers were increased: C-reactive protein, 25 mg/L; ferritin, 1106 ng/mL; lactate dehydrogenase, 632 U/L; and interleukin-6, 87 pg/mL. She was treated for severe coronavirus disease 2019 (COVID-19) pneumonia. Her treatment involved supportive care with mechanical ventilation, convalescent plasma transfusion, antiviral therapy with favipiravir, intravenous dexamethasone, and reduction of immune suppression medication. This case had a successful recovery through multidisciplinary team management. Solid-organ transplant recipients are a high-risk population who need an individualized care plan for the optimization of immunosuppressive medication and treatment of the COVID-19 infection.

5.
Toxicol Appl Pharmacol ; 274(1): 1-6, 2014 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-24215938

RESUMO

Exposure to high altitudes is associated with hypoxia and increased vulnerability to oxidative stress. Polycythemia (increased number of circulating erythrocytes) develops to compensate the high altitude associated hypoxia. Iron supplementation is, thus, recommended to meet the demand for the physiological polycythemia. Iron is a major player in redox reactions and may exacerbate the high altitudes-associated oxidative stress. The aim of this study was to explore the potential iron-induced oxidative lung tissue injury in rats at high altitudes (6000ft above the sea level). Iron supplementation (2mg elemental iron/kg, once daily for 15days) induced histopathological changes to lung tissues that include severe congestion, dilatation of the blood vessels, emphysema in the air alveoli, and peribronchial inflammatory cell infiltration. The levels of pro-inflammatory cytokines (IL-1ß, IL-6, and TNF-α), lipid peroxidation product and protein carbonyl content in lung tissues were significantly elevated. Moreover, the levels of reduced glutathione and total antioxidant capacity were significantly reduced. Co-administration of trolox, a water soluble vitamin E analog (25mg/kg, once daily for the last 7days of iron supplementation), alleviated the lung histological impairments, significantly decreased the pro-inflammatory cytokines, and restored the oxidative stress markers. Together, our findings indicate that iron supplementation at high altitudes induces lung tissue injury in rats. This injury could be mediated through excessive production of reactive oxygen species and induction of inflammatory responses. The study highlights the tissue injury induced by iron supplementation at high altitudes and suggests the co-administration of antioxidants such as trolox as protective measures.


Assuntos
Altitude , Suplementos Nutricionais/toxicidade , Ferro/toxicidade , Estresse Oxidativo/efeitos dos fármacos , Pneumonia/induzido quimicamente , Animais , Antioxidantes/uso terapêutico , Cromanos/uso terapêutico , Peroxidação de Lipídeos/efeitos dos fármacos , Peroxidação de Lipídeos/fisiologia , Masculino , Estresse Oxidativo/fisiologia , Pneumonia/metabolismo , Pneumonia/patologia , Pneumonia/prevenção & controle , Ratos , Ratos Wistar , Espécies Reativas de Oxigênio/metabolismo
6.
Arch Clin Cases ; 11(1): 13-15, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38655270

RESUMO

Fibroelastoma is a rare cardiac tumor that can cause embolization, stroke, myocardial infarction, heart failure, and cardiac arrest. Here, we report the case of a 45-year-old male who presented with right-sided weakness and fever. He was diagnosed with acute right frontal infarction and was found to have Streptococcus sanguinis bacteremia. Upon confirmation of a positive blood culture after 24 hours, treatment for endocarditis was initiated. Transesophageal echocardiography revealed findings highly suggestive of a papillary fibroelastoma (PFE). PFE ought to be regarded as a potential differential diagnosis in individuals who exhibit symptoms of fever, thromboembolism, and persistent bacteremia. Non-invasive imaging such as echocardiography is of great value in the diagnosis of PFE, while surgical resection remains the best treatment modality to overcome current and future associated complications.

7.
Infect Dis Clin North Am ; 38(1): 103-120, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38280759

RESUMO

Infections in heart and lung transplant recipients are complex and heterogeneous. This article reviews the epidemiology, risk factors, specific clinical syndromes, and most frequent opportunistic infections in heart and/or lung transplant recipients that will be encountered in the intensive care unit and will provide a practical approach of empirical management.


Assuntos
Transplante de Pulmão , Transplantados , Humanos , Pulmão , Fatores de Risco , Transplante de Pulmão/efeitos adversos
8.
J Multidiscip Healthc ; 17: 4043-4052, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39165256

RESUMO

Purpose: This study aimed to explore the combined effects of caffeine intake and listening to music on walking parameters, and its relationship with psychological variables (fatigue and exercise enjoyment) in middle-aged women. Patients and Methods: Sixteen healthy middle-aged women, aged between 50 and 60 years old, participated in this study. Their walking parameters (distance, number of steps, steps number/minute, cadence and walking speed) were assessed using the 6-minute walking test (6MWT) in four task conditions: in no-music/no-caffeine, no-music/with caffeine, with music/no-caffeine, and with music/with caffeine conditions. Besides, exercise enjoyment and fatigue were evaluated using the Physical Activity Enjoyment Scale (PACES-8) and rating of perceived exertion (RPE) questionnaires, respectively. Results: As a result, we found that 100 mg of caffeine intake significantly (p < 0.05) improved walking parameters such as distance, cadence and number of steps during both simple (p < 0.05) and dual-task, while listening to preferred music, where optimal results were found (p < 0.01) with a large effect size (η2p >0.14). Listening to music was sufficient to significantly improve the distance (p < 0.001), cadence (p < 0.001), and walking speed (p < 0.05) values. Besides, both caffeine intake and/or listening to music significantly (p < 0.05 with large effect size (η2p >0.14)) decreased the feeling of fatigue and increased exercise enjoyment while walking in healthy middle-aged women. Conclusion: In conclusion, caffeine intake seems to positively influence gait capacities, and its combined effects with listening to music, mainly preferred ones, would boost these beneficial effects in middle-aged women.

9.
Cureus ; 16(8): e66594, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-39252736

RESUMO

Congenital pseudarthrosis of the clavicle (CPC) is a rare disorder diagnosed at birth or early childhood presenting with a painless, non-tender mass on the clavicle. Its etiology is unknown, caused by failure of fusion of the medial and lateral ossification centers of the clavicle. Left-sided CPC is rare and linked to other pathological abnormalities. Bilateral involvement is extremely rare and it is seen in association with other congenital malformations. A full-term newborn baby girl was examined after a complicated emergency cesarean section delivery. Upon initial pediatric examination, there was suspicion of bilateral clavicle fracture with no limitation of movement and equal moro reflex bilateral. Plain radiographs of the clavicle revealed a suspected bilateral fracture of the clavicle. At the two-month follow-up, X-rays were taken to assess the clavicle fractures showing persistent bilateral clavicle deformities and there was no interval callus formation which confirmed the diagnosis of bilateral CPC and excluded the presence of the fracture. Bilateral pseudarthrosis of the clavicle is a rare entity, and surgical correction is not required unless the patient develops symptoms of limitations of movement or for aesthetic causes.

10.
J Surg Case Rep ; 2024(5): rjae287, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38706485

RESUMO

Carpal boss is a bony protrusion on the dorsal aspect of wrist quadrangular joint. The exact cause and prevalence are not well understood. Most of the patients are asymptomatic, although some experience pain, bony prominence, restricted mobility, and joint instability in sever neglected cases. We are presenting a case of a 24-year-old male had chronic dorsal wrist pain with bony prominence appearance underwent surgical excision of a carpal boss lesion in concomitant with soft tissue ganglion cyst over the carpal boss after failed conservative management, resulting in significant symptom improvement and restored range of motion. Carpal boss lesion is a common condition that can be undiagnosed due to asymptomatic presentation or the presence of overlying soft tissue pathology as ganglion cyst. Although conservative treatment is helpful in some patients, most symptomatic carpal boss lesion patients eventually need surgical excision.

11.
Arch Osteoporos ; 19(1): 60, 2024 Jul 18.
Artigo em Inglês | MEDLINE | ID: mdl-39023661

RESUMO

We investigated the risk factors for hip fracture in 48,533 European older adults for 8 years from 2013 onward. We identified female gender, age above 80, low handgrip strength, and depression as significant risk factors for hip fracture. Our findings may help identify high-risk populations for hip fractures in pre-clinical settings. OBJECTIVES: Hip fracture is a major cause of functional disability, mortality, and health costs. However, the identification and characterization of its causative factors remain poor. METHODS: We investigated demography, handgrip strength (HGS), depression, and multiple age-associated comorbidities for predicting future hip fracture in individuals aged 50 or above from 15 European countries (n = 48,533). All participants were evaluated from 2013 to 2020 using four successive waves of the Survey of Health, Aging, and Retirement in Europe (SHARE). RESULTS: Altogether, 1130 participants developed hip fractures during the study period. We identified female gender, an advancing age from quinquagenarians onward, and a poor socioeconomic status as critical risk factors for future hip fracture. Having mobility difficulty, a low HGS (< 27 kg in men, < 16 kg in women) and higher scores on Euro-D depression scales were also significant risk factors for hip fracture. Summated scales of hypertension, diabetes mellitus, cancer, Alzheimer's disease, and stroke did not appear as risk factors. CONCLUSION: Collectively, we report advancing age, female gender, low HGS, and depression as independent risk factors for hip fracture. Our findings are useful in identifying high-risk populations for hip fractures in pre-clinical settings before rigorous evaluation and treatment in clinics.


Assuntos
Fraturas do Quadril , Humanos , Fraturas do Quadril/epidemiologia , Feminino , Masculino , Idoso , Europa (Continente)/epidemiologia , Fatores de Risco , Pessoa de Meia-Idade , Estudos Longitudinais , Idoso de 80 Anos ou mais , Força da Mão , Depressão/epidemiologia , Fatores Sexuais , Comorbidade
12.
IDCases ; 34: e01891, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37701050

RESUMO

Pseudomonas luteola, formerly known as Chryseomonas luteola, is an infrequently encountered aerobic gram-negative bacterium. While it has been identified as a potential human bacterial pathogen, its connection to specific clinical conditions remains limited. Here, we present an exceptional case of a 27-year-old immunocompetent man with acute tonsillitis, who developed P. luteola bacteremia. This unique correlation, not extensively documented in previous studies, sheds light on the potential pathogenicity of P. luteola in patients with acute tonsillitis.

13.
J Clin Tuberc Other Mycobact Dis ; 33: 100384, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38116574

RESUMO

Introduction: Tuberculosis is among the deadliest infectious diseases. Lymphadenitis is an inflammation of the lymph nodes which is the most common extrapulmonary manifestation of tuberculosis. Saudi Arabia is rated as a country with a low incidence of tuberculosis. The study's objective is to describe the clinical characteristics and outcome of TB lymphadenitis (TBL) at a large tertiary care center in Riyadh, Saudi Arabia. Method: All patients 18 years and older diagnosed with TB lymphadenitis between 2010 and 2021 at a single tertiary center in Riyadh, Saudi Arabia, were reviewed retrospectively for their clinical presentation, diagnostic yield, therapy, and outcome. Result: 107 patients were included in the final analysis. The distribution of males and females were nearly equal, at 50.5 % and 49.5 %, respectively. The average age was 45. During the ten-year period of our investigation, the number of confirmed TBL ranged from 19 (the highest in 2010) to as little as one patient in 2021. 72.8 percent of patients presented with TBL affecting the neck. The most commonly used diagnostic method was histopathological examination of the tissue sample, granulomatous inflammations were found in 89.2 % of cases of theses necrotizing granuloma. 10.7 % of our isolates had resistance. The average duration of anti-TB treatment was 6.8 months with a cure rate of 72.9 %. Conclusion: The majority of patients in this study had cervical lymphadenopathy, with histopathology being the mainstay of diagnosis. 90 % of TBL cultures were susceptible to first-line anti-TB therapy.

14.
IDCases ; 31: e01709, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36852406

RESUMO

Basidiobolomycosis is an uncommon fungal infection caused by the environmental saprophyte Basidiobolus ranarum. Basidiobolomycosis typically manifests as a subcutaneous infection, and rarely affects the gastrointestinal tract. It lacks a distinct clinical manifestation, and most initial cases are incorrectly identified. We report a 69-year-old male patient who presented to the emergency department with history of abdominal pain, fever, and weight loss for 1 year that turned to be gastrointestinal basidiobolomycosis.

15.
Cureus ; 15(11): e49729, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-38161856

RESUMO

Background Lumbar disc herniation is considered the most common cause of sciatica, which is a contributing factor to disability. Surgical management of lumbar disc herniation in the form of discectomy is superior to conservative management in terms of better recovery and pain relief. However, recurrence, residual back pain, and disability are common expected complications following surgery. Therefore, this study aims to determine the prevalence of low back pain and its related risk factors and disability following discectomy at King Fahad Hospital in the Al-Ahsa region. Methodology A cross-sectional study was conducted at King Fahad Hofuf Hospital in the Al-Ahsa region among patients who were admitted and underwent lumbar spine discectomy in the last six years either due to traumatic or degenerative causes. The study used an anonymous questionnaire consisting of the patient's sociodemographic data, medical and surgical history, spine disease history, and surgical history. The preoperative Glasgow Coma Scale score, neurological status, and American Spinal Cord Impairment Scale score were noted. In addition, immediate postoperative neurological status and minor complications were recorded. Moreover, more than six months postoperatively, the Numeric Analogue Scale and the Oswestry low back pain disability index questionnaire were administered. Results A total of 201 patients were included in the study. The majority of the patients were male (59.7%), with ages ranging from 41 to 60 years (51.7). Most patients underwent one surgery (83.6%) in the form of discectomy alone (90.5%) at L3-L4 (58.7%), for which the intervertebral disc was the most common degenerative indication for surgery. All patients (100%) had low back pain preoperatively, and most patients (50.7%) had no back pain six months postoperatively. Preoperatively, 58.2% had diminished neurological status, while only 29.9% showed a deficit postoperatively. Postoperative low back pain was significantly associated with office-based jobs (p = 0.021, 60.5%) and a high number of surgeries (p = 0.004, 74.1%). The following factors were observed to be risk factors for having lower back pain: six months postoperatively, being unemployed (p = 0.024, odds ratio = 4.38, 338% increased risk), having an office-based job (p = 0.012, odds ratio = 3.98, 298% increased risk), and the underlying cause of the problem being degenerative (p = 0.003, odds ratio = 3.34, 234% increased risk). Low back pain-related severe disability postoperatively was significantly associated with increased age >40 (28-50%; p = 0.045), female gender (p = 0.012, 44.4%), and being unemployed (p = 0.002, 51.4%). The level of disability six months postoperatively was moderate in 40.4% of the patients. Conclusions Lumbar discectomy is a successful procedure for relieving low back pain among patients with degenerative spine disease, with an improvement that involves neurological status. However, residual back pain may still occur in less than half of the patients despite appropriate management, such as being unemployed or office-based employees and having multiple spine surgeries. However, low back pain-related disability is often moderate, with increasing severity seen with increased age, being female, and being unemployed.

16.
J Clin Med ; 12(16)2023 Aug 09.
Artigo em Inglês | MEDLINE | ID: mdl-37629222

RESUMO

Coronavirus disease 2019 (COVID-19) is a highly contagious respiratory disease that leads to variable degrees of illness, and which may be fatal. We evaluated the diagnostic performance of each chest computed tomography (CT) reporting category recommended by the Expert Consensus of the Radiological Society of North America (RSNA) in comparison with that of reverse transcription polymerase chain reaction (RT-PCR). We aimed to add an analysis of this form of reporting in the Middle East, as few studies have been performed there. Between July 2021 and February 2022, 184 patients with a mean age of 55.56 ± 16.71 years and probable COVID-19 infections were included in this retrospective study. Approximately 64.67% (119 patients) were male, while 35.33% (65 patients) were female. Within 7 days, all patients underwent CT and RT-PCR examinations. According to a statement by the RSNA, the sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and accuracy of each CT reporting category were calculated, and the RT-PCR results were used as a standard reference. The RT-PCR results confirmed a final diagnosis of COVID-19 infection in 60.33% of the patients. For COVID-19 diagnoses, the typical category (n = 88) had a sensitivity, specificity, PPV, and accuracy of 74.8%, 93.2%, 94.3%, and 92.5%, respectively. For non-COVID-19 diagnoses, the PPVs for the atypical (n = 22) and negative (n = 46) categories were 81.8% and 89.1%, respectively. The PPV for the indeterminate (n = 28) category was 67.9%, with a low sensitivity of 17.1%. However, the RSNA's four chest CT reporting categories provide a strong diagnostic foundation and are highly correlated with the RT-PCR results for the typical, atypical, and negative categories, but they are weaker for the indeterminate category.

17.
Biomedicines ; 11(7)2023 Jun 26.
Artigo em Inglês | MEDLINE | ID: mdl-37509466

RESUMO

The purpose of this review is to give an up-to-date, thorough, and timely overview of monkeypox (Mpox), a severe infectious viral disease. Furthermore, this review provides an up-to-date treatment option for Mpox. The monkeypox virus (MPXV) has remained the most virulent poxvirus for humans since the elimination of smallpox approximately 41 years ago, with distribution mainly in central and west Africa. Mpox in humans is a zoonotically transferred disease that results in symptoms like those of smallpox. It had spread throughout west and central Africa when it was first diagnosed in the Republic of Congo in 1970. Mpox has become a major threat to global health security, necessitating a quick response by virologists, veterinarians, public health professionals, doctors, and researchers to create high-efficiency diagnostic tests, vaccinations, antivirals, and other infection control techniques. The emergence of epidemics outside of Africa emphasizes the disease's global significance. A better understanding of Mpox's dynamic epidemiology may be attained by increased surveillance and identification of cases.

18.
Biomed Res Int ; 2022: 8082608, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36177059

RESUMO

Background: Osteosarcoma, the most frequent osteogenic malignancy, has become a serious public health challenge due to its high morbidity rates and metastatic potential. Recently, the neurokinin-1 receptor (NK-1R) is proved to be a promising target in cancer therapy. This study is aimed at determining the effect of aprepitant, a safe and Food and Drug Administration (FDA) approved NK-1R antagonist, on osteosarcoma cell migration and metastasis, and to explore its underlying mechanism of action. Methods: Colorimetric MTT assay was employed to assess cell viability and cytotoxicity. A wound-healing assay was used to examine migration ability. The desired genes' protein and mRNA expression levels were measured by western blot assay and quantitative real-time PCR (qRT-PCR), respectively. Gelatinase activity was also measured by zymography. Results: We found that aprepitant inhibited MG-63 osteosarcoma cell viability in a dose-dependent manner. We also observed that aprepitant inhibited the migrative phenotype of osteosarcoma cells and reduced the expression levels and activities of matrix metalloproteinases (MMP-2 and MMP-9). Aprepitant also reduced the expression of an angiogenic factor, VEGF protein, and NF-κB as an important transcriptional regulator of metastasis-related genes. Conclusion: Collectively, our observations indicate that aprepitant modulates the metastatic behavior of human osteosarcoma cells, which may be applied to an effective therapeutic approach for patients with metastatic osteosarcoma.


Assuntos
Neoplasias Ósseas , Osteossarcoma , Indutores da Angiogênese/farmacologia , Aprepitanto/farmacologia , Neoplasias Ósseas/patologia , Linhagem Celular Tumoral , Movimento Celular , Humanos , Metaloproteinase 2 da Matriz/metabolismo , Metaloproteinase 9 da Matriz/metabolismo , NF-kappa B , Antagonistas dos Receptores de Neurocinina-1/farmacologia , Antagonistas dos Receptores de Neurocinina-1/uso terapêutico , Osteossarcoma/patologia , RNA Mensageiro/genética , Receptores da Neurocinina-1/genética , Receptores da Neurocinina-1/metabolismo , Fator A de Crescimento do Endotélio Vascular/genética , Fator A de Crescimento do Endotélio Vascular/farmacologia
19.
Int J Surg Case Rep ; 95: 107149, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35636208

RESUMO

INTRODUCTION: Synovial chondromatosis (SC) is a benign metaplastic proliferation of cartilaginous nodules within the synovial membrane that commonly manifests as "loose masses" in the joint space. Synovial chondromatosis affects 1.8 per 1 million individuals. The most common articulations affected are the knees, followed by the hip, elbows, and shoulder. The wrist, on the other hand, is rarely affected. Synovial chondromatosis occurs mostly in the third or fifth decade of life. PRESENTATION OF CASE: A 30-year-old Saudi, non-married female patient presented to the outpatient orthopaedic clinic complaining of right wrist pain for 5 years. The pain started gradually with on and off pain episodes. Her magnetic resonance imagining was ordered which showed large radio ulnar joint effusion associated with synovitis with multiple low- intensity foci corresponding to subtle calcifications which are all consistent with synovial chondromatosis which was successfully treated with surgery. Eventually, the patient reported that her quality of life was hugely improved especially in terms of pain, stiffness, and range of motion. CONCLUSION: Synovial chondromatosis in radio-ulnar joint is a very rare entity. Surgical exploration of the joint, removal of loose bodies alone or combined with synovectomy, is the recommended treatment.

20.
J Taibah Univ Med Sci ; 17(1): 28-37, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-35140562

RESUMO

OBJECTIVE: This study investigates the relationship between low back pain (LBP) and sleep quality among health care workers in KSA. METHODS: In this cross-sectional study, an anonymous questionnaire consisting of three sections was administered to health care providers in KSA. The first part included the biographic data of participants, while the second comprised the Oswestry Disability Index (ODI) and the extended version of the Nordic Musculoskeletal Questionnaire (NMQ-E) for LBP. The third part contained the Pittsburgh Sleep Quality Index (PSQI). RESULTS: A total of 442 healthcare providers completed the questionnaire. Nearly two-thirds of the respondents were male (62.7%). Most were living in either the central region (23.3%) or the northern region (23.3%). There was a statistically significant correlation between the global PSQI and ODI score (r = 0.235; p < 0.001). The correlation between ODI score and PSQI components including subjective sleep quality (r = 0.229; p = 0.007), habitual sleep efficiency (r = 0.229; p < 0.01), and the daytime dysfunction was also statistically significant. CONCLUSION: Health care providers in KSA with high rating for LBP disability demonstrated poorer overall sleep quality and vice versa. However, further research is essential to investigate whether this relationship is causal.

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