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1.
Virchows Arch ; 2024 Mar 12.
Artigo em Inglês | MEDLINE | ID: mdl-38472412

RESUMO

Thyroid carcinomas exhibit various genetic alterations, including the RET and NTRK fusion genes that are targets for molecular therapies. Thus, detecting fusion genes is crucial for devising effective treatment plans. This study characterized the pathological findings associated with these genes to identify the specimens suitable for genetic analysis. Thyroid carcinoma cases positive for the fusion genes were analyzed using the Oncomine Dx Target Test. Clinicopathological data were collected and assessed. Among the 74 patients tested, 8 had RET and 1 had NTRK3 fusion gene. Specifically, of the RET fusion gene cases, 6 exhibited "BRAF-like" atypia and 2 showed "RAS-like" atypia, while the single case with an NTRK3 fusion gene presented "RAS-like" atypia. Apart from one poorly differentiated thyroid carcinoma, most cases involved papillary thyroid carcinomas (PTCs). Primary tumors showed varied structural patterns and exhibited a high proportion of non-papillary structures. Dysmorphic clear cells were frequently observed. BRAF V600E immunoreactivity was negative in all cases. Interestingly, some cases exhibited similarities to diffuse sclerosing variant of PTC characteristics. While calcification in lymph node metastases was mild, primary tumors typically required hydrochloric acid-based decalcification for tissue preparation. This study highlights the benefits of combining morphological and immunohistochemical analyses for gene detection and posits that lymph node metastases are more suitable for genetic analysis owing to their mild calcification. Our results emphasize the importance of accurate sample processing in diagnosing and treating thyroid carcinomas.

2.
Kyobu Geka ; 77(2): 87-91, 2024 Feb.
Artigo em Japonês | MEDLINE | ID: mdl-38459856

RESUMO

A 66-year-old man. He had myocardial infarction due to occlusion of the left anterior descending branch, which was subsequently complicated by ventricular septal perforation. Ventricular septal perforation was repaired through right ventricle incision, applying double patches for closure, and injecting glue between the patches. The early postoperative course was good, but the infarcted left ventricular anterior wall remained because of the right ventriculotomy approach. A left ventricular aneurysm was demonstrated on postoperative follow-up echocardiography, which gradually enlarged to become giant. Since symptoms of heart failure such as respiratory distress appeared, left ventriculoplasty was performed 29 months after the perforation of the initial surgery. Since thinned left ventricular wall remains following right ventriculotomy approach, risk of postoperative left ventricular aneurysm should be taken into account.


Assuntos
Procedimentos Cirúrgicos Cardíacos , Aneurisma Cardíaco , Infarto do Miocárdio , Ruptura do Septo Ventricular , Masculino , Humanos , Idoso , Ruptura do Septo Ventricular/diagnóstico por imagem , Ruptura do Septo Ventricular/etiologia , Ruptura do Septo Ventricular/cirurgia , Infarto do Miocárdio/complicações , Procedimentos Cirúrgicos Cardíacos/efeitos adversos , Ventrículos do Coração/diagnóstico por imagem , Ventrículos do Coração/cirurgia , Aneurisma Cardíaco/diagnóstico por imagem , Aneurisma Cardíaco/etiologia , Aneurisma Cardíaco/cirurgia
3.
J Med Case Rep ; 18(1): 91, 2024 Mar 07.
Artigo em Inglês | MEDLINE | ID: mdl-38448995

RESUMO

BACKGROUND: In patients with conjoined nerve roots, hemilaminectomy with sufficient exposure of the intervertebral foramen or lateral recess is required to prevent destabilization and ensure correct mobility of the lumbosacral spine. To the best of our knowledge, no case reports have detailed the long-term course of conjoined nerve roots after surgery. CASE PRESENTATION: We report the case of a 51-year-old Japanese man with a conjoined nerve root. The main symptoms were acute low back pain, radiating pain, and right leg muscle weakness. Partial laminectomy was performed with adequate exposure to the conjoined nerve root. The symptoms completely resolved immediately after surgery. However, the same symptoms recurred 7 years postoperatively. The nerve root was compressed because of foraminal stenosis resulting from L5-S disc degeneration. L5-S transforaminal lumbar interbody fusion was performed on the contralateral side because of an immobile conjoined nerve root. At 44 months after the second surgery, the patient had no low back pain or radiating pain, and the muscle weakness in the right leg had improved. CONCLUSIONS: This is the first report of the long-term course of conjoined nerve root after partial laminectomy. When foraminal stenosis occurs after partial laminectomy, transforaminal lumbar interbody fusion from the contralateral side may be required because of an immobile conjoined nerve root.


Assuntos
Laminectomia , Dor Lombar , Masculino , Humanos , Pessoa de Meia-Idade , Constrição Patológica , Dor Lombar/etiologia , Dor Lombar/cirurgia , Perna (Membro) , Debilidade Muscular/etiologia , Paresia
5.
Endocr J ; 71(1): 31-37, 2024 Jan 29.
Artigo em Inglês | MEDLINE | ID: mdl-38044137

RESUMO

We analyzed the outcomes of genetic testing to study the frequency of mutations in advanced thyroid cancer in Japan. Patients (n = 96) with unresectable or metastatic thyroid carcinoma were included for retrospective chart review. Results of gene panel testing, which was performed between May 2020 and April 2023, were analyzed. The median age of the patients was 73.5 years (range, 17-88); 59 were women, and 39 were men. Overall, 17 patients had anaplastic thyroid carcinoma (ATC), 68 had papillary thyroid carcinoma (PTC), 7 had follicular thyroid carcinoma, and 6 had poorly differentiated thyroid carcinoma (PDTC). Of the 81 patients with differentiated thyroid carcinoma (DTC) and PDTC, 88.9% were radioactive iodine-refractory, and 32.7% of all cases had previously been treated with multiple kinase inhibitors. Of ATC cases, 52.9% had BRAF mutations, and 5.9% had RET fusion. Of PTC cases, 83.1% had BRAF mutations, 9.2% had RET fusion, and 1.5% had NTRK fusion. One case each of ATC and PTC had a tumor mutation burden of ≥10. ATC cases had a significantly higher prevalence of TP53 alterations than the other cases (82.3% vs. 11.8%), whereas the frequencies of TERT promoter mutations were 88.2% in ATC cases and 64.7% in the other cases, albeit without a significant difference. In conclusion, 58.8% of ATC, 93.8% of PTC, and 42.9% of PDTC had genetic alterations linked to therapeutic agents. Active gene panel testing is required to increase treatment options.


Assuntos
Adenocarcinoma , Prolina/análogos & derivados , Tiocarbamatos , Carcinoma Anaplásico da Tireoide , Neoplasias da Glândula Tireoide , Masculino , Humanos , Feminino , Adolescente , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Neoplasias da Glândula Tireoide/genética , Neoplasias da Glândula Tireoide/patologia , Proteínas Proto-Oncogênicas B-raf/genética , Estudos Retrospectivos , Radioisótopos do Iodo , Japão/epidemiologia , Câncer Papilífero da Tireoide/genética , Mutação
6.
Asian J Neurosurg ; 18(3): 621-625, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38152516

RESUMO

Introduction Posttraumatic kyphosis of the thoracolumbar spine is a possible cause of deterioration of activities of daily living. Thus, postoperative kyphosis is an important issue in treating traumatic thoracolumbar fractures. The intradiscal vacuum phenomenon (IVP) after a traumatic thoracolumbar fracture is considered an important predictor of severe kyphosis after implant removal. However, the associated factors are not yet clear. Methods The study included data from 94 intervertebral discs on the cephalocaudal side of 47 fractured vertebrae of 45 patients for traumatic thoracolumbar fracture due to high-energy trauma. We assessed the demographics of patients (age, sex, cause of injury, location of injured vertebra, fracture type, cephalocaudal side), imaging finding (kyphosis angle of fractured vertebra at the injury, endplate fracture on computed tomography [CT], intervertebral injury on magnetic resonance image [MRI]), and IVP on CT conducted more than 6 months after surgery. We divided the intervertebral discs into an IVP group and a non-IVP group. To identify factors associated with an IVP, univariate analysis and multivariate logistic regression analysis were conducted. Results IVP was observed in 27 (29%) of 94 intervertebral discs on CTs conducted at an average of 14.0 months postoperatively. In univariate analysis, the IVP group ( n = 27) had a significantly more cephalic side of the injured vertebra, endplate fracture on CT, and disc injury on MRI compared with the non-IVP group ( n = 67). A multivariate logistic regression analysis was conducted to identify factors associated with IVP. The cephalic side (odds ratio [OR] = 4.183, 95% confidence interval [CI] = 1.269-13.785) and endplate fracture on CT (OR = 9.564, 95% CI = 1.940-47.143) were identified as independent factors associated with IVP. Conclusions IVP was observed in 27 (29%) of 94 intervertebral discs. The cephalic side and endplate fracture on CT were identified as independent factors associated with IVP.

7.
Gland Surg ; 12(10): 1441-1448, 2023 Oct 30.
Artigo em Inglês | MEDLINE | ID: mdl-38021198

RESUMO

Background: Cardiac metastasis from thyroid cancer is rare and has an extremely poor prognosis. Although some patients who undergo heart surgery survive, the therapeutic effectiveness of systemic therapy is limited. Case Description: A 53-year-old woman with a history of papillary thyroid carcinoma (PTC) presented with cough and right chest discomfort. She underwent total thyroidectomy, followed by three rounds of radioactive iodine therapy, to treat pulmonary metastasis. Metastases to the lung, chest wall, liver, heart, and lymph nodes were observed on computed tomography. Core needle biopsy of the tumor in the right chest wall revealed the recurrence of PTC. Cardiac metastasis was discovered by echocardiography and cardiac magnetic resonance imaging, and blood test indicated a thyroglobulin level of 851 ng/mL. Based on the presence of cardiac metastasis and strong clinical symptoms, the condition was assumed to be fatal, and lenvatinib was started right away. Three weeks after starting lenvatinib, every metastatic lesion shrank. Once the ERC1-RET fusion gene was identified, we switched to selpercatinib therapy. Ten weeks after starting selpercatinib, every tumor shrank and blood thyroglobulin dropped to 68.1 ng/mL. Initial symptoms such as cough and right chest pain improved. Lenvatinib- and selpercatinib-related adverse effects can be managed with supportive care. Conclusions: To the best of our knowledge, this is the first case of successful systemic therapy for cardiac metastasis from PTC. Conventionally, cardiac surgery is the main treatment for cardiac metastasis, but now systemic therapy is also an important alternative.

8.
J Med Case Rep ; 17(1): 443, 2023 Oct 08.
Artigo em Inglês | MEDLINE | ID: mdl-37805489

RESUMO

BACKGROUND: Amyloidosis is a collection of disorders characterized by the extracellular deposition of amyloid, a specialized fibrous protein, in diverse tissues, leading to functional impairments. CASE PRESENTATION: A 70-year old Asian-Japanese female was referred to our department for further examination of her left hydronephrosis come from lower ureteral obstruction. Contrast enhanced CT and retrograde pyelo-nephrography revealed left ureteral tumor. Though ureteroscropic biopsy did not show malignant pathological findings, ureteroscopic image suspected malignant disease, thus nephroureterectomy was performed. Pathological findings revealed localized ureteral amyloidosis. Whole body examination including gastro endoscopy and cardio ultrasonography could not reveal amyloidosis except ureter. She was free from recurrence 9 months postoperatively. CONCLUSION: We herein report a rare case of localized ureteral amyloidosis.


Assuntos
Amiloidose , Ureter , Doenças Ureterais , Neoplasias Ureterais , Obstrução Ureteral , Humanos , Feminino , Idoso , Ureter/diagnóstico por imagem , Ureter/cirurgia , Ureter/patologia , Doenças Ureterais/diagnóstico por imagem , Doenças Ureterais/cirurgia , Doenças Ureterais/complicações , Obstrução Ureteral/diagnóstico por imagem , Obstrução Ureteral/etiologia , Obstrução Ureteral/cirurgia , Neoplasias Ureterais/patologia , Amiloidose/diagnóstico por imagem , Amiloidose/cirurgia
9.
Histopathology ; 83(4): 657-663, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37501641

RESUMO

AIMS: Lenvatinib is a multikinase inhibitor used for treating unresectable or metastatic cancers, including thyroid cancer. As total thyroidectomy followed by radioactive iodine therapy is a commonly recommended initial treatment for thyroid cancer, histological findings of the thyroid after lenvatinib therapy remain unclear. Therefore, the aim of this study was to analyse in-vivo changes in patients who underwent thyroidectomy after lenvatinib therapy. METHODS AND RESULTS: We screened 167 patients with thyroid cancer [papillary thyroid cancer (PTC), n = 102; follicular thyroid cancer (FTC), n = 26; anaplastic thyroid cancer (ATC), n = 39] who underwent lenvatinib therapy. Among these patients, six underwent thyroidectomy (lenvatinib-treated group: PTC, n = 3; FTC, n = 1; ATC, n = 2), and the specimens were examined. Five patients with PTC who did not receive lenvatinib therapy were included for comparison (untreated group). Microvessel density (MVD) was evaluated in both groups. The PTC and FTC specimens showed relatively more ischaemic changes than ATC specimens. Coagulative necrosis and ischaemic changes in cancer cells were frequently observed. ATC specimens showed fibrosis and mild cell damage. As hypothyroidism is a common side effect of lenvatinib therapy, non-cancerous thyroid tissues were also examined. Histological findings included mild lymphocytic infiltration, lymphoid follicular formation, histiocytic reaction and follicular epithelial destruction. The MVD in lenvatinib-treated tissues was significantly lower than that in untreated tissues. CONCLUSIONS: Lenvatinib therapy probably induces relatively specific ischaemic changes in thyroid cancer cells. Moreover, inflammatory cell infiltration and decreased MVD occur to varying degrees in non-cancerous thyroid tissue and may be related to hypothyroidism, a side effect of lenvatinib.


Assuntos
Adenocarcinoma Folicular , Carcinoma Anaplásico da Tireoide , Neoplasias da Glândula Tireoide , Humanos , Neoplasias da Glândula Tireoide/tratamento farmacológico , Neoplasias da Glândula Tireoide/patologia , Radioisótopos do Iodo/uso terapêutico , Adenocarcinoma Folicular/tratamento farmacológico , Adenocarcinoma Folicular/patologia , Compostos de Fenilureia/efeitos adversos , Câncer Papilífero da Tireoide/tratamento farmacológico
10.
J Med Case Rep ; 17(1): 239, 2023 Jun 11.
Artigo em Inglês | MEDLINE | ID: mdl-37301817

RESUMO

BACKGROUND: Intrathecal baclofen therapy can substantially improve symptoms in most patients with severe spasticity due to traumatic spinal cord injury, multiple sclerosis, or cerebral paresis. To the best of our knowledge, decompression surgeries at the intrathecal catheter insertion site in patients with a preexisting intrathecal pump for drug delivery have not been reported. CASE PRESENTATION: We report the case of a 61-year-old Japanese man with lumbar spinal stenosis who underwent intrathecal baclofen therapy. We performed decompression for lumbar spinal stenosis at the intrathecal catheter insertion site during intrathecal baclofen therapy. The yellow ligament was removed by partial resection of the lamina under a microscope to avoid damage to the intrathecal catheter. The dura mater was distended. No obvious cerebrospinal fluid leakage was observed. Postoperatively, lumbar spinal stenosis symptoms improved, and spasticity remained well controlled with intrathecal baclofen therapy. CONCLUSIONS: This is the first reported case of lumbar spinal stenosis decompression at an intrathecal catheter insertion site during intrathecal baclofen therapy. Preoperative preparation is necessary, as the intrathecal catheter may be replaced during surgery. We performed surgery without removing or replacing the intrathecal catheter, taking care not to damage the spinal cord by migrating the intrathecal catheter.


Assuntos
Relaxantes Musculares Centrais , Estenose Espinal , Masculino , Humanos , Pessoa de Meia-Idade , Baclofeno/efeitos adversos , Estenose Espinal/complicações , Estenose Espinal/cirurgia , Injeções Espinhais , Espasticidade Muscular/etiologia , Espasticidade Muscular/induzido quimicamente , Descompressão/efeitos adversos , Catéteres/efeitos adversos
11.
Surg Case Rep ; 9(1): 38, 2023 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-36920674

RESUMO

BACKGROUND: Anaplastic thyroid carcinoma (ATC) is the most aggressive form of thyroid carcinoma. Lenvatinib, a multikinase inhibitor, is rarely used in preoperative settings due to adverse effects including delayed wound healing and fistula formation. Herein, we report the use of lenvatinib treatment prior to conversion surgery for the treatment of ATC. CASE PRESENTATION: A 71-year-old woman was referred to our hospital with suspected thyroid cancer with recurrent laryngeal nerve invasion and cervical lymph node metastasis based on the results of ultrasonography. Computed tomography demonstrated the presence of a thyroid tumor invading the trachea and esophagus with no evidence of distant metastasis. Fine needle aspiration of the left cervical lymph node indicated the lymph node metastasis of ATC. As the tumor had widely invaded the trachea and esophagus, unresectable ATC was diagnosed and treatment with lenvatinib was initiated at a dose of 24 mg/day. On day 13 of lenvatinib treatment, the primary tumor and lymph node metastases demonstrated a partial response to therapy. As the tumor was now considered resectable, the decision was made to perform conversion surgery. Total thyroidectomy and left lateral neck node dissection were performed 7 days after the withdrawal of lenvatinib. The patient was discharged on postoperative day 5 with no complications. Histopathological examination demonstrated that the tumor contained the component of papillary thyroid carcinoma, squamoid ATC cells, and granulation tissue. In areas of granulation tissue, atypical cells with spindle-shaped or polygonal morphology, pyknotic nuclei, and scant cytoplasm were observed. Immunohistochemically, these cells were positive for cytokeratin AE1/AE3, TTF-1, and p53 and negative for thyroglobulin and PAX8. Therefore, the areas of granulation tissue observed within tumor samples were also considered ATC that were affected by lenvatinib treatment. In total, approximately 50% of resected tumor comprised ATC, and 70% of them had been changed to granulation tissue. CONCLUSIONS: The findings in the present case indicate that lenvatinib may have significant antitumor effects in preoperative settings. Lenvatinib may represent a promising candidate therapy for unresectable ATC by increasing tumor resectability.

12.
JGH Open ; 7(2): 110-117, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36852140

RESUMO

Background and Aim: The rate of ulcerative colitis (UC)-related colorectal cancer (colitis-associated carcinoma) is increasing. Estrogen receptor (ER) beta expression has been studied separately in patients with sporadic colorectal cancer and those with colitis-associated carcinoma. However, no study has compared the expression in both of these cancer types. The present study aimed to evaluate the relationship between colitis-associated carcinoma and ERs and assess whether the expression of ER beta influences cell proliferation. Methods: This study included 45 surgically operated colitis-associated carcinomas, 43 high-grade dysplasias, 34 low-grade dysplasias, 36 sporadic colorectal cancers, 44 high-grade adenomas, and 34 low-grade adenomas. ER beta expression was evaluated with immunohistochemistry. Results: Colitis-associated carcinoma showed significantly lower ER beta immunoexpression than sporadic colorectal lesions and high- and low-grade dysplasia. In seven colitis-associated carcinoma harboring both intensity score 3 (strong immunoexpression) and score 1 (weak immunoexpression) areas, the correlation among ER beta intensity, Ki-67, and p21 labeling index was assessed; an area with an ER beta intensity score of 3 showed a higher Ki-67 labeling index than that with score 1. In four out of the seven lesions, p21 labeling index was higher in the area of ER beta score 1 than in that of ER beta score 3. Conclusions: The data suggest that ER beta expression is an accelerating factor in colorectal tumors. This association may be lower in colitis-associated carcinoma than in sporadic colorectal cancer.

13.
J Surg Case Rep ; 2023(1): rjad012, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36711437

RESUMO

A 70-year-old female without any past medical history underwent total thyroidectomy and central neck dissection for papillary thyroid cancer (PTC) (pT3bN1aM0 pStage II). Her post-operative thyroglobulin (Tg) level remained high (around 100 ng/mL), which increased to 366 ng/mL 5 years after surgery. Computed tomography revealed metastasis to the left III and right Vb and VI lymph nodes and an incidental ovarian tumor. Transvaginal ultrasonography and magnetic resonance imaging suspected malignancy, resulting in total hysterectomy and bilateral adnexal resection. A pathological diagnosis of ovarian goiter with no malignancy was then established. For lymph node metastasis of PTC, right neck dissection and left III lymph node resection were performed. Post-operative blood examination showed a significant decrease in the Tg level (5.9 ng/mL). In conclusion, systemic imaging or I-131 remnant ablation should be performed after total thyroidectomy, as evident in the present case in which Tg levels did not decrease after total thyroidectomy.

14.
Radiol Case Rep ; 17(12): 4769-4773, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36212763

RESUMO

Calcium crystal deposition diseases are transient benign diseases that can cause intense pain. They can sometimes cause masses and soft tissue edema around the calcification, which should be differentiated from tumors and abscesses. We report a case of calcium crystal deposition disease with an enhanced mass on the ventral side of the vertebral bodies resembling tumors and abscesses. A female patient in her 50s visited our hospital complaining of chest pain. Computed tomography revealed a soft tissue mass with polygonal high-density lesions on the ventral side of the thoracic spine. Initially, we suspected it to be a perivertebral tumor and considered a biopsy. However, the pain rapidly improved with the administration of oral acetaminophen (Caronal, Chuo-ku/Tokyo/Japan). Hence, the patient was followed up for the time being. The mass disappeared after 3 months. In addition, polygonal high-density lesions inside the mass disappeared over time. Therefore, it was diagnosed as an inflammatory mass due to calcium crystal deposition disease. Calcium crystal deposition diseases can cause soft tissue edema and inflammatory mass around the calcium crystal deposit that can be confused with a perivertebral tumor. This report elucidates the importance of identifying calcifications within and near the masses to diagnose an inflammatory mass resulting from calcium crystal deposition.

15.
Respirol Case Rep ; 10(9): e01004, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-35950141

RESUMO

Malignant pericardial mesothelioma (MPM) is a rare tumour that arises from the mesothelial cells of the pericardium. No standard treatment has been established owing to a poor treatment response; therefore, MPM has a poor prognosis. We herein report a rare case of MPM in a 70-year-old man that was diagnosed immunohistopathologically using cell block sections of pericardial fluid and in which long-term survival for more than 3 years was achieved with only periodic pericardial drainage. Immunohistopathological staining investigations, especially BRCA1-associated protein 1 (BAP1) immunostaining using cell block sections of pericardial effusion, are effective in making a diagnosis of MPM. Well-differentiated papillary mesothelioma (WDPM) with BAP1 loss progresses to MPM in the long term, showing that BAP1 loss may induce phenotypical evolution of WDPM. BAP1 loss may also progress to malignant mesothelioma in situ and then to invasive mesothelioma. BAP1 immunohistochemistry should be considered for the early diagnosis of MPM.

16.
Nature ; 609(7928): 754-760, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-35940203

RESUMO

Identifying the host genetic factors underlying severe COVID-19 is an emerging challenge1-5. Here we conducted a genome-wide association study (GWAS) involving 2,393 cases of COVID-19 in a cohort of Japanese individuals collected during the initial waves of the pandemic, with 3,289 unaffected controls. We identified a variant on chromosome 5 at 5q35 (rs60200309-A), close to the dedicator of cytokinesis 2 gene (DOCK2), which was associated with severe COVID-19 in patients less than 65 years of age. This risk allele was prevalent in East Asian individuals but rare in Europeans, highlighting the value of genome-wide association studies in non-European populations. RNA-sequencing analysis of 473 bulk peripheral blood samples identified decreased expression of DOCK2 associated with the risk allele in these younger patients. DOCK2 expression was suppressed in patients with severe cases of COVID-19. Single-cell RNA-sequencing analysis (n = 61 individuals) identified cell-type-specific downregulation of DOCK2 and a COVID-19-specific decreasing effect of the risk allele on DOCK2 expression in non-classical monocytes. Immunohistochemistry of lung specimens from patients with severe COVID-19 pneumonia showed suppressed DOCK2 expression. Moreover, inhibition of DOCK2 function with CPYPP increased the severity of pneumonia in a Syrian hamster model of SARS-CoV-2 infection, characterized by weight loss, lung oedema, enhanced viral loads, impaired macrophage recruitment and dysregulated type I interferon responses. We conclude that DOCK2 has an important role in the host immune response to SARS-CoV-2 infection and the development of severe COVID-19, and could be further explored as a potential biomarker and/or therapeutic target.


Assuntos
COVID-19 , Proteínas Ativadoras de GTPase , Estudo de Associação Genômica Ampla , Fatores de Troca do Nucleotídeo Guanina , Interações entre Hospedeiro e Microrganismos , SARS-CoV-2 , Alelos , Animais , COVID-19/complicações , COVID-19/genética , COVID-19/imunologia , COVID-19/fisiopatologia , Modelos Animais de Doenças , Proteínas Ativadoras de GTPase/antagonistas & inibidores , Proteínas Ativadoras de GTPase/genética , Proteínas Ativadoras de GTPase/metabolismo , Predisposição Genética para Doença , Fatores de Troca do Nucleotídeo Guanina/antagonistas & inibidores , Fatores de Troca do Nucleotídeo Guanina/genética , Fatores de Troca do Nucleotídeo Guanina/metabolismo , Interações entre Hospedeiro e Microrganismos/genética , Interações entre Hospedeiro e Microrganismos/imunologia , Humanos , Interferon Tipo I/genética , Interferon Tipo I/imunologia , Japão , Pulmão/patologia , Macrófagos , Mesocricetus , Pessoa de Meia-Idade , Pneumonia/complicações , Pirazóis/farmacologia , RNA-Seq , SARS-CoV-2/patogenicidade , Carga Viral , Redução de Peso
17.
BMC Womens Health ; 22(1): 346, 2022 08 16.
Artigo em Inglês | MEDLINE | ID: mdl-35974345

RESUMO

BACKGROUND: The growth of uterine leiomyomas is dependent on the levels of sex steroid hormones, and they usually shrink after menopause. However, there are cases in which leiomyomas continue to grow and/or surgery is required after menopause. In addition to estrogen, progesterone has recently been implicated in leiomyoma enlargement, but its relevance to postmenopausal leiomyoma remains unknown. Therefore, we investigated whether hormone receptor expression is associated with postmenopausal leiomyoma enlargement and characterized pathological findings of postmenopausal leiomyoma, which have not been clarified yet. METHODS: Nine cases that required total hysterectomy for leiomyomas after menopause were examined. Surgeries were conducted because of pelvic pressure, pelvic pain, suspected malignancy, or growing leiomyoma. Six cases of leiomyomas being incidentally found during total hysterectomy for postmenopausal uterine prolapse, and six patients who underwent hysterectomy for leiomyomas before menopause, were examined as controls. We evaluated the expression of estrogen receptor, progesterone receptor B, and progesterone receptor AB by immunohistochemical staining among the cases. We also analyzed the pathological findings of leiomyomas. RESULTS: In postmenopausal leiomyomas, the expression of progesterone receptor was higher than that in the adjacent myometrium. Compared with premenopausal leiomyomas, the expression of progesterone receptor decreased. Postmenopausal leiomyomas that required surgery did not show elevated sex steroid hormone receptor expression, compared with the leiomyomas that did not require surgery. The degeneration frequency of leiomyomas was 92% in the group that underwent surgery for postmenopausal leiomyomas, 65% in the group that underwent surgery for reasons other than the presence of leiomyomas after menopause, and 47% in the group operated for leiomyomas before menopause. CONCLUSIONS: These results suggest that sex steroid hormones are unlikely to be associated with the growth of leiomyomas after menopause. Since leiomyoma degeneration with increased extracellular matrix is likely to occur in postmenopausal women, the degeneration of leiomyomas may be the main mechanism for the growth of postmenopausal leiomyomas.


Assuntos
Leiomioma , Neoplasias Uterinas , Feminino , Humanos , Leiomioma/patologia , Pós-Menopausa , Progesterona , Receptores de Progesterona/metabolismo , Neoplasias Uterinas/patologia
18.
BMC Musculoskelet Disord ; 23(1): 798, 2022 Aug 20.
Artigo em Inglês | MEDLINE | ID: mdl-35987644

RESUMO

BACKGROUND: The 1-year mortality and functional prognoses of patients who received surgery for cervical trauma in the elderly remains unclear. The aim of this study is to investigate the rates of, and factors associated with mortality and the deterioration in walking capacity occurring 1 year after spinal fusion surgery for cervical fractures in patients 65 years of age or older. METHODS: Three hundred thirteen patients aged 65 years or more with a traumatic cervical fracture who received spinal fusion surgery were enrolled. The patients were divided into a survival group and a mortality group, or a maintained walking capacity group and a deteriorated walking capacity group. We compared patients' backgrounds, trauma, and surgical parameters between the two groups. To identify factors associated with mortality or a deteriorated walking capacity 1 year postoperatively, a multivariate logistic regression analysis was conducted. RESULTS: One year postoperatively, the rate of mortality was 8%. A higher Charlson comorbidity index (CCI) score, a more severe the American Spinal Cord Injury Association impairment scale (AIS), and longer surgical time were identified as independent factors associated with an increase in 1-year mortality. The rate of deterioration in walking capacity between pre-trauma and 1 year postoperatively was 33%. A more severe AIS, lower albumin (Alb) and hemoglobin (Hb) values, and a larger number of fused segments were identified as independent factors associated with the increased risk of deteriorated walking capacity 1 year postoperatively. CONCLUSIONS: The 1-year rate of mortality after spinal fusion surgery for cervical fracture in patients 65 years of age or older was 8%, and its associated factors were a higher CCI score, a more severe AIS, and a longer surgical time. The rate of deterioration in walking capacity was 33%, and its associated factors were a more severe AIS, lower Alb, lower Hb values, and a larger number of fused segments.


Assuntos
Fraturas Ósseas , Lesões do Pescoço , Traumatismos da Medula Espinal , Fraturas da Coluna Vertebral , Fusão Vertebral , Idoso , Fraturas Ósseas/complicações , Humanos , Estudos Retrospectivos , Traumatismos da Medula Espinal/cirurgia , Fraturas da Coluna Vertebral/complicações , Fraturas da Coluna Vertebral/cirurgia , Fusão Vertebral/efeitos adversos , Caminhada
19.
Nihon Shokakibyo Gakkai Zasshi ; 119(7): 658-665, 2022.
Artigo em Japonês | MEDLINE | ID: mdl-35811123

RESUMO

An 80-year-old male was presented with metamorphopsia of the left eye. Two years ago, the patient was diagnosed with an esophagogastric junction (EGJ) adenocarcinoma with Barrett's esophagus. The patient subsequently underwent esophagectomy with esophagogastrostomy followed by two-field lymphadenectomy. The pathological stage of the tumor was pT1bN0M0, pStage I, tub1-2, ly1, and v0. The human epidermal growth factor receptor type 2 score was 1 plus. The patient experienced an uncomplicated recovery after being discharged from the hospital with no recurrences for the next 28 months. However, follow-up computed tomography performed at the time of the complaint of metamorphopsia of the left eye revealed systemic metastasis. An ophthalmologic evaluation showed an elevated lesion on the left fundus. Finally, brain magnetic resonance imaging indicated choroidal metastases from an EGJ adenocarcinoma. When the left eye was treated with radiotherapy combined with S-1 and oxaliplatin, complete response for choroidal metastasis and partial response for systemic metastasis were achieved. Due to early diagnosis and treatment, the patient's eyesight was salvaged. Furthermore, the availability and contribution of ramucirumab, an angiogenesis inhibitor used as a second line of treatment for advanced gastric cancer, to choroidal metastasis following irradiation-controlled hemorrhagic tumor was explored.


Assuntos
Adenocarcinoma , Neoplasias Esofágicas , Neoplasias Gástricas , Adenocarcinoma/tratamento farmacológico , Idoso de 80 Anos ou mais , Anticorpos Monoclonais Humanizados , Neoplasias Esofágicas/cirurgia , Junção Esofagogástrica/patologia , Junção Esofagogástrica/cirurgia , Humanos , Masculino , Neoplasias Gástricas/patologia , Ramucirumab
20.
J Med Case Rep ; 16(1): 278, 2022 Jul 16.
Artigo em Inglês | MEDLINE | ID: mdl-35841109

RESUMO

BACKGROUND: Simultaneous bilateral hip fractures without major trauma in the elderly are rare and usually symmetrical. To the best of our knowledge, only two cases of bilateral simultaneous asymmetric hip fracture in the elderly without major trauma have been reported. CASE PRESENTATION: We present the case of a 90-year-old Japanese man with simultaneous bilateral asymmetric hip fractures with trochanteric fracture on the right side and greater trochanteric fracture on the left side. He complained of dyspnea at midnight and was referred to our emergency department. He was admitted to the internal medicine department for bacterial pneumonia treatment. On the 8th day of hospitalization, he was referred to our orthopedic surgery department for hip pain and was found to have fractures of both hips. Computed tomography findings showed that the left femoral neck fracture was an old fracture, while the left greater trochanteric fracture and the right trochanteric fracture were fresh fractures. He was surgically treated through open reduction and internal fixation with an intramedullary nail on the right and hemiarthroplasty on the left in supine position, performed during the same surgical sessions on the 12th day of hospitalization. CONCLUSIONS: We report a new form of simultaneous bilateral asymmetric hip fracture in the elderly. The fracture types of the case were femoral trochanteric fracture and greater trochanteric fracture of the femur, which were different from the fracture types in the previously reported two cases. Clinicians should be aware of the possibility of simultaneous bilateral hip fractures, especially in the elderly.


Assuntos
Fixação Intramedular de Fraturas , Fraturas do Quadril , Idoso , Idoso de 80 Anos ou mais , Pinos Ortopédicos , Parafusos Ósseos , Fixação Interna de Fraturas , Fixação Intramedular de Fraturas/métodos , Fraturas do Quadril/diagnóstico por imagem , Fraturas do Quadril/cirurgia , Humanos , Masculino
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