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1.
Artículo en Ruso | MEDLINE | ID: mdl-36385053

RESUMEN

The article analyzes the main aspects of the development of various approaches and methods in the provision of medical care to patients with closed abdominal trauma with damage to the liver and spleen. The most important stages of improving approaches, the impact of scientific and technological progress on the introduction of modern technologies in this area of surgery are described. The modern views of various authors on the existing problem are considered.


Asunto(s)
Traumatismos Abdominales , Heridas no Penetrantes , Humanos , Bazo/cirugía , Bazo/lesiones , Heridas no Penetrantes/terapia , Traumatismos Abdominales/cirugía
2.
Epidemiol Mikrobiol Imunol ; 70(4): 264-280, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-35073705

RESUMEN

B cells play a vital role in the defence of the body against infectious agents. Apart from their ability to present antigen to T cells, B cells are mainly producers of antibodies. These play a crucial role in the effective elimination of infection and are also involved in the regulation of the immune response. The analysis of peripheral blood B cell subpopulations that makes it possible to monitor the development of B cells to the stage of antibody producing plasmablasts provides a valuable laboratory parameter which is important for both the study of the pathogenesis and diagnosis of some diseases. Laboratory analysis of B cell subpopulations is now a routinely available laboratory option thanks to the development of multicolour flow cytometry. This article summarizes the core knowledge which is currently applied to the analysis of B cell subpopulations in immunological laboratories.


Asunto(s)
Linfocitos B , Laboratorios , Citometría de Flujo
3.
Sud Med Ekspert ; 64(3): 48-51, 2021.
Artículo en Ruso | MEDLINE | ID: mdl-34013696

RESUMEN

The data on the use of mathematical modeling of spleen injury by the method of fine element analysis within the framework of a forensic medical examination of a spleen injury with the circumstances of causing injury to the victim deliberately established by the investigating authority. The result of the conducted mathematical modeling showed the adequacy of the created model and accurate reproduction of the results in spleen injury which makes it promising to introduce this method into daily expert practice.


Asunto(s)
Bazo , Análisis de Elementos Finitos
4.
Rozhl Chir ; 98(12): 509-512, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31958965

RESUMEN

INTRODUCTION: Wandering spleen is a rare cause of recurrent abdominal pain in children that is difficult to diagnose. Splenopexy should be preferred to splenectomy. CASE REPORT: The patient, a 4 years old girl on growth hormone therapy, was referred to the Department of Paediatric Surgery for an assessment of episodes of abdominal colic and frequent vomiting. Sonography did not indicate any pathology, gastrointestinal contrast study showed an altered shape of the gastric outlet, and upper endoscopy diagnosed a prepyloric membrane. Open surgery was indicated based on these examinations, revealing a large wandering spleen and dilated stomach and small bowel loops oppressed by the long splenic suspensory ligaments. Pyloroplasty was performed with the antral membrane excision and shortening of the long gastrosplenic ligament and placement of the spleen into the left hypochondrium. No complications occurred in the postoperative period. Four months later the patient was hospitalised again for abdominal colic pain. Surgical revision of the abdomen revealed the wandering spleen in the mesogastrium. Even though the spleen was the cause of the second surgery, we decided to preserve the spleen. Partial splenectomy was done, fixing the large spleen into an extraperitoneal pocket in the left hypochondrium. The postoperative course was uneventful. Blood flow to the spleen is regularly monitored by Doppler ultrasound. Vaccination was indicated at the office of haematology according to the scheme for splenectomy patients; however, prophylactic antibiotic therapy was not needed given the good function of the preserved part of the spleen. CONCLUSION: Extraperitoneal fixation of the spleen seems to be a good choice for patients with a wandering spleen, particularly for children and adolescents.


Asunto(s)
Laparoscopía , Esplenectomía , Ectopía del Bazo , Dolor Abdominal , Preescolar , Femenino , Humanos , Esplenectomía/métodos , Anomalía Torsional , Ectopía del Bazo/cirugía
6.
Bull Exp Biol Med ; 165(3): 364-367, 2018 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-30006873

RESUMEN

We studied the effect of radioprotector indralin (B-190) alone or in combination with monizol on BP and HR in rabbits, reduction of blood supply and spleen weight in rats and (CBA×C57Bl/6)F1 hybrids mice, and on blood loss from a wound on tip of the tail in mice. Being an α1-adrenomimetic, indralin caused hypertensive reaction with the development of bradycardia, reduced blood supply and spleen weight, and sharply reduced blood loss from the wound. Monizol as nitrate reduced BP without affecting HR and reduced blood loss from the wound. Monizol administered prior to indralin eliminated radioprotector-induced hypertensive reaction, reduced bradycardia by more than 2 times, and attenuated the effect of indralin on spleen weight and blood loss from the wound by 1.6-1.8 times. Monizol administered after indralin had no effect on shifts in peripheral blood supply caused by the radioprotector.


Asunto(s)
Antihipertensivos/farmacología , Hemorragia/prevención & control , Nitratos/farmacología , Fenoles/farmacología , Protectores contra Radiación/farmacología , Bazo/efectos de los fármacos , Herida Quirúrgica/tratamiento farmacológico , Animales , Presión Sanguínea/efectos de los fármacos , Cruzamientos Genéticos , Esquema de Medicación , Combinación de Medicamentos , Sinergismo Farmacológico , Femenino , Frecuencia Cardíaca/efectos de los fármacos , Masculino , Ratones , Ratones Endogámicos C57BL , Ratones Endogámicos CBA , Tamaño de los Órganos/efectos de los fármacos , Conejos , Ratas , Bazo/irrigación sanguínea
7.
Soud Lek ; 62(1): 6-7, 2017.
Artículo en Checo | MEDLINE | ID: mdl-28248123

RESUMEN

Our case describes an innocuous snowball fight arising into a life-threatening condition. Patient with progressive left-sided abdominal pain was brought by ambulance to the hospital. According to history he was not aware of any trauma, just a snowball fight with his wife 5 days ago. Clinical examination finding was: hint of peritoneal irritation, Kehr´s sign and left-subchondrium palpation pain. The spleen trauma suspicion was high. After clinical examination an ultrasound examination was performed, revealing inhomogeneous structure of the spleen surrounded by hypoechoic collection and free fluid in the pelvic area. The patient added information about the possible trauma - it was not an ordinary snowball, but a piece of ice about 40cm. Computed tomography was subsequently performed, with the findings: spleen laceration, intraparenchymal hematoma, subcapsular hematoma and haemoperitoneum. The patient was urgently transferred to the operating room and splenectomy was performed. The intraoperatively findings corresponded to the imaging methods and the amount of blood and clots in the abdominal cavity was approximately 1000ml. The post-operative condition and rehabilitation was uncomplicated and one week after splenectomy the patient was released from hospital, with no subjective difficulties. This case shows spleen susceptibility to injury, even in trauma which can be considered not so severe at the first sight. It is important to correlate clinical and imaging methods findings and check the patient´s condition over a longer period, if necessary.


Asunto(s)
Rotura del Bazo , Heridas no Penetrantes , Hemoperitoneo , Humanos , Masculino , Esplenectomía , Rotura del Bazo/etiología , Rotura del Bazo/cirugía
8.
Sud Med Ekspert ; 60(3): 39-41, 2017.
Artículo en Ruso | MEDLINE | ID: mdl-28656953

RESUMEN

The clinical observation reported in the present article is of special interest for the forensic medical experts taking into consideration the rare occurrence of infarction of the spleen in the medical legal practice. More comprehensive detailed information about such cases is needed for their thorough in-depth investigation and systematization of the differential diagnostic signs and clinical manifestations of the injury (rupture of the spleen) and pathology of the organ (infarction) for the purpose of the more reliable differentiation between these conditions, creation of the relevant diagnostic database, formulation of more conclusive recommendations, and their better substantiation.


Asunto(s)
Bazo/patología , Esplenectomía/métodos , Infarto del Bazo , Rotura del Bazo , Adulto , Diagnóstico Diferencial , Patologia Forense/métodos , Humanos , Masculino , Infarto del Bazo/diagnóstico , Infarto del Bazo/patología , Rotura del Bazo/diagnóstico , Rotura del Bazo/patología , Resultado del Tratamiento
9.
Surg Endosc ; 30(1): 366-71, 2016 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-26139478

RESUMEN

BACKGROUND: Three-dimensional printing technology is rapidly changing the way we produce all sort of objects, having also included medical applications. We embarked in a pilot study to assess the value of patient-specific 3-D physical manufacturing of spleno-pancreatic anatomy in helping during patient's counseling and for preoperative planning. METHODS: Twelve patients scheduled for a laparoscopic splenectomy underwent contrast CT and subsequent post-processing to create virtual 3-D models of the target anatomy, and 3-D printing of the relative solid objects. The printing process, its cost and encountered problems were monitored and recorded. Patients were asked to rate the value of 3-D objects on a 1-5 scale in facilitating their understanding of the proposed procedure. Also 10 surgical residents were required to evaluate the perceived extra value of 3-D printing in the preoperative planning process. RESULTS: The post-processing analysis required an average of 2; 20 h was needed to physically print each model and 4 additional hours to finalize each object. The cost for the material employed for each object was around 300 euros. Ten patients gave a score of 5, two a score of 4. Six residents gave a score of 5, four a score of 4. CONCLUSIONS: Three-dimensional printing is helpful in understanding complex anatomy for educational purposes at all levels. Cost and working time to produce good quality objects are still considerable.


Asunto(s)
Imagenología Tridimensional , Laparoscopía , Cuidados Preoperatorios , Impresión Tridimensional , Bazo/diagnóstico por imagen , Esplenectomía , Adulto , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Tomografía Computarizada Multidetector , Proyectos Piloto
10.
J Radiat Res ; 65(3): 337-349, 2024 May 23.
Artículo en Inglés | MEDLINE | ID: mdl-38718391

RESUMEN

Lymphocytes, which are highly sensitive to radiation, play a crucial role in the body's defense against tumors. Radiation-induced lymphopenia has been associated with poorer outcomes in different cancer types. Despite being the largest secondary lymphoid organ, the spleen has not been officially designated as an organ at risk. This study hypothesizes a connection between spleen irradiation and lymphopenia and seeks to establish evidence-based dosage limits for the spleen. We retrospectively analyzed data from 96 patients with locally advanced gastric cancer who received postoperative chemoradiotherapy (CRT) between May 2010 and May 2017. Complete blood counts were collected before, during and after CRT. We established a model for predicting the minimum absolute lymphocyte count (Min ALC) and to investigate potential associations between spleen dosimetric variables and Min ALC. The median follow-up was 60 months. The 5-year overall survival (OS) and disease-free survival (DFS) were 65.2% and 56.8%, respectively. The median values of pre-treatment ALC, Min ALC and post-treatment ALC were 1.40 × 109, 0.23 × 109 and 0.28 × 109/L, respectively. Regression analysis confirmed that the primary tumor location, number of fractions and spleen V5 were significant predictors of Min ALC during radiation therapy. Changes in ALC (ΔALC) were identified as an independent predictor of both OS and DFS. Spleen V5 is an independent predictor for Min ALC, and the maximum dose of the spleen is associated with an increased risk of severe lymphopenia. Therefore, these doses should be restricted in clinical practice. Additionally, ΔALC can serve as a prognostic indicator for adjuvant radiotherapy in gastric cancer.


Asunto(s)
Linfopenia , Bazo , Neoplasias Gástricas , Humanos , Linfopenia/etiología , Masculino , Femenino , Persona de Mediana Edad , Bazo/efectos de la radiación , Bazo/patología , Anciano , Neoplasias Gástricas/radioterapia , Neoplasias Gástricas/patología , Adulto , Relación Dosis-Respuesta en la Radiación , Recuento de Linfocitos , Supervivencia sin Enfermedad , Estudios Retrospectivos , Quimioradioterapia , Dosificación Radioterapéutica , Anciano de 80 o más Años
11.
Case Rep Oncol ; 17(1): 447-453, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38455716

RESUMEN

Introduction: Primary splenic lymphoma is a rare lymphoproliferative disorder that involves the spleen, exhibits diverse clinical presentations, and lacks a clear consensus in terms of management strategies. Case Presentation: We present the case of a 52-year-old patient with a complex medical history marked by multiple chronic medical conditions. The patient was diagnosed with primary splenic lymphoma, specifically the diffuse large B-cell subtype. Treatment for our patient involved a shortened course of chemotherapy (4 cycles of rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone [R-CHOP] followed by two doses of rituximab) due to issues related to compliance and treatment-related complications. This was followed by consolidative radiotherapy without resorting to splenectomy. Conclusion: Remarkably, despite using a shortened course of R-CHOP, the patient achieved complete resolution, and a positron emission tomography scan conducted at the end of the 6-month posttreatment period confirmed sustained complete remission.

12.
Wideochir Inne Tech Maloinwazyjne ; 19(2): 211-222, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38973786

RESUMEN

Introduction: The aim of the article was too investigate and compare the feasibility, safety, and early postoperative recovery associated with laparoscopic partial splenectomy (LPS) and open partial splenectomy (OPS) in patients with benign splenic tumours and traumatic splenic rupture. Material and methods: A retrospective analysis was conducted on clinical data from 110 patients undergoing splenic resection at our hospital between March 2019 and May 2022. Among them, 35 patients underwent OPS, 25 underwent LPS for traumatic splenic rupture, while 50 patients with benign splenic tumours underwent either OPS (n = 20) or LPS (n = 30). Preoperative, intraoperative, and postoperative data were collected and compared. Statistical analysis was conducted using SPSS software. Results: There was no significant difference in the general data between the 2 groups of patients with benign splenic tumours and those with splenic trauma. Among patients with traumatic splenic rupture, the OPS group had a shorter operation time (p < 0.05). Regardless of whether they had traumatic splenic rupture or benign splenic tumours, the LPS group required less postoperative analgesia and had a shorter defecation recovery time (p < 0.05). Additionally, the LPS group displayed lower white blood cell count, white blood cell/lymphocyte ratio (WLR), neutrophil/lymphocyte ratio (NLR), monocyte/lymphocyte ratio (MLR), C-reactive protein (CRP), calcitonin (PCT), and interleukin-6 (IL-6) than the OPS group on the first and third days post-surgery (p < 0.05). Conclusions: In comparison to OPS, LPS presents significant advantages, including minimal surgical trauma, a reduced early postoperative inflammatory response, milder wound pain, and a faster recovery of gastrointestinal function.

13.
Int J Surg Pathol ; 32(1): 150-154, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-37157817

RESUMEN

EBV-positive inflammatory follicular dendritic cell sarcoma (EBV+ inflammatory FDCS) is a rare neoplasm almost exclusively located in the spleen or liver. It is characterized by a proliferation of EBV-positive spindle-shaped cells bearing follicular dendritic cell markers, associated with an abundant lymphoplasmacytic infiltrate. EBV+ inflammatory FDCS is often asymptomatic or responsible for mild symptoms. It usually displays an indolent course and its prognosis is excellent after tumor removal, although relapsing and metastatic forms exist. Herein, we describe an aggressive form of splenic EBV+ inflammatory FDCS in a 79-year-old woman presenting with abdominal pain, deterioration of general health status, major inflammatory syndrome, and symptomatic hypercalcemia. A splenectomy was performed leading to a rapid improvement in her clinical condition and normalization of laboratory abnormalities. Unfortunately, her symptoms and laboratory abnormalities reappeared 4 months later. Computed tomography showed a mass in the splenectomy site and multiple liver and peritoneal nodules. Further analyses were performed on tumor tissue and showed positive phospho-ERK staining of tumoral cells indicating activation of MAPK pathway. Inactivating mutations were found on CDKN2A and NF1 genes. Subsequently, the patient's condition deteriorated rapidly. Since interleukin-6 levels were dramatically increased, tocilizumab was used but only had a transient effect on the patient's symptoms and inflammatory syndrome. Antitumor agent gemcitabine was initiated but her clinical condition continued to deteriorate and the patient died 2 weeks later. The management of aggressive forms of EBV+ inflammatory FDCS remains challenging. However, since these tumors seem to display genetic alterations, better characterization could lead to molecular targeted therapies.


Asunto(s)
Sarcoma de Células Dendríticas Foliculares , Neoplasias de los Tejidos Blandos , Femenino , Humanos , Anciano , Sarcoma de Células Dendríticas Foliculares/diagnóstico , Sarcoma de Células Dendríticas Foliculares/genética , Sarcoma de Células Dendríticas Foliculares/metabolismo , Bazo/patología , Herpesvirus Humano 4/genética , Recurrencia Local de Neoplasia/patología , Células Dendríticas Foliculares/metabolismo , Células Dendríticas Foliculares/patología , Neoplasias de los Tejidos Blandos/patología
14.
Front Vet Sci ; 11: 1276984, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38812561

RESUMEN

Introduction: Contrast-enhanced computed tomography (CT) of the spleen in dogs and cats often displays a heterogeneous enhancement pattern. This study aimed to describe the CT appearances and duration of heterogeneous splenic enhancement in clinically healthy cats and to compare those enhancements with diffuse infiltrative splenic lesions (DISL). Methods: Spleens of 14 healthy cats were imaged using contrast-enhanced CT protocols which were obtained at 10, 25, and 45 s, and then every 40 s thereafter until 245 s had past from the initiation of contrast medium injection. The presence of transient splenic heterogeneity was evaluated. In addition, the relationships of certain variables including age, weight, systolic blood pressure, and splenic volume to the duration and the degree of splenic enhancement were determined. Also, medical records and CT images of five cats with DISL were retrospectively evaluated. Result: Transient heterogeneous enhancement of the spleen was observed in all 14 healthy cats, and the maximum heterogeneity was observed 25 s after the injection. Splenic heterogeneity lasted more than 5 min in nine of 14 cats (64.3%). No statistically significant relationships were seen between the duration and degree of splenic heterogeneity in the images taken 25 s after the injection and variables including weight, age, systolic blood pressure, and splenic volume. Discussion: Compared to the healthy group, early homogeneous splenic enhancement along with generalized splenomegaly was observed in all cats with DISL. Transient splenic heterogeneity is highly common in cats undergoing contrast-enhanced CT even in the generally scanned delayed phases, which can help with the interpretation of CT images of feline spleens. In addition, our results suggest that homogeneous splenic enhancement in post-contrast CT scans along with splenomegaly on CT images could be useful as a diagnostic indicator of DISL in cats.

15.
Diagnostics (Basel) ; 14(2)2024 Jan 11.
Artículo en Inglés | MEDLINE | ID: mdl-38248038

RESUMEN

Some authors consider the risk of bleeding an absolute contraindication to percutaneous image-guided splenic puncture. While splenic punctures are mainly performed at specialized centers, no technique for the closure of the puncture tract has been broadly established. The aim of this study was to investigate the effectiveness and safety of a percutaneous image-guided biopsy of the spleen using fibrin glue to plug the tract. A total of 27 requests for splenic image-guided interventions were identified between 2010 and 2021 and considered for inclusion in our retrospective single-center study. Seven patients needed to be excluded, which left twenty patients who underwent a percutaneous computed tomography (CT) fluoroscopy-guided biopsy of a splenic lesion during this period. In all patients, a 17G coaxial needle with an 18G core biopsy needle was used. Diagnostic adequacy and accuracy were evaluated, and complications were classified using the CIRSE classification system for adverse events. Diagnostic adequacy was 100% (20/20), and a median of four samples were collected. Diagnostic accuracy was 80% (16/20). The four off-target samples included one inconclusive finding and three samples of regular spleen tissue. The overall complication rate was 5% (1/20). No mild (grade 1-2) or moderate (grade 3-4) complications occurred. One severe (grade 5-6) complication occurred. Although controversial and potentially high-risk, diagnostic percutaneous biopsies of the spleen appear to be relatively safe with the use of fibrin glue to seal the tract.

16.
Zhen Ci Yan Jiu ; 49(5): 472-479, 2024 May 25.
Artículo en Inglés, Zh | MEDLINE | ID: mdl-38764118

RESUMEN

OBJECTIVES: To investigate the effect of Peitu Yimu(strengthening spleen and soothing liver) acupuncture on intestinal mucosal barrier function and corticotropin-releasing factor (CRF)/CRF receptor 1 (CRFR1) pathway in rats with diarrhea-predominant irritable bowel syndrome (IBS-D), so as to explore its underlying mechanism in alleviating IBS-D. METHODS: Forty female SD rats were randomly divided into blank, model, electroacupuncture (EA), and agonist groups, with 10 rats in each group. Except for the blank group, rats in the other groups were given folium sennae infusion by gavage combined with chronic unpredictable mild stress to establish IBS-D model. Rats in the EA group received acupuncture at "Tianshu"(ST25) and EA at "Zusanli"(ST36) and "Taichong"(LR3) (2 Hz/15 Hz) on one side for 20 min, with the side chosen alternately every other day, for 14 days after modeling. Rats in the agonist group received acupuncture 30 min after intravenous injection of CRFR1 agonist urocortin, with the same manipulation method and time as the EA group. Before and after intervention, visceral pain threshold and stool Bristol scores were measured. Elevated plus maze test and open field test were used to detect anxiety and depression like behavior of rats. ELISA was used to detect the contents of CRF and CRFR1 in rats serum. Immunohistochemistry was used to detect the positive expressions of CRF, CRFR1, zonula occludens protein 1(ZO-1), occlusal protein(Occludin), and closure protein 1 (Claudin-1) in colon tissue. RESULTS: Compared with the blank group, the visceral pain threshold, open arm time percentage (OT%), total distance of movement in the open field test, and positive expression of ZO-1, Occludin, and Claudin-1 in colon were decreased (P<0.01, P<0.05), while Bristol stool scores, serum CRF and CRFR1 contents, and positive expressions of CRF and CRFR1 in colon were increased (P<0.01) in the model group. After intervention and compared with the model group, the visceral pain threshold, OT%, total distance of movement in the open field test, and positive expressions of ZO-1, Occludin, and Claudin-1 in colon were increased (P<0.05, P<0.01), while Bristol stool scores, serum CRF and CRFR1 contents, and positive expressions of CRF and CRFR1 in colon were decreased (P<0.01) in the EA group;the Bristol stool scores, serum CRF content, and CRF positive expression in colon were significantly decreased in the agonist group (P<0.01). CONCLUSIONS: Peitu Yimu acupuncture can significantly improve visceral hypersensitivity and anxiety-depression state in IBS-D rats. Its mechanism may be related to the inhibition of CRF/CRFR1 pathway and restoration of intestinal tight junction protein expressions.


Asunto(s)
Terapia por Acupuntura , Diarrea , Mucosa Intestinal , Síndrome del Colon Irritable , Receptores de Hormona Liberadora de Corticotropina , Animales , Femenino , Humanos , Ratas , Puntos de Acupuntura , Claudina-1/metabolismo , Claudina-1/genética , Hormona Liberadora de Corticotropina/metabolismo , Hormona Liberadora de Corticotropina/genética , Diarrea/terapia , Diarrea/metabolismo , Diarrea/genética , Modelos Animales de Enfermedad , Mucosa Intestinal/metabolismo , Síndrome del Colon Irritable/terapia , Síndrome del Colon Irritable/metabolismo , Síndrome del Colon Irritable/genética , Ratas Sprague-Dawley , Receptores de Hormona Liberadora de Corticotropina/metabolismo , Receptores de Hormona Liberadora de Corticotropina/genética , Proteína de la Zonula Occludens-1/metabolismo , Proteína de la Zonula Occludens-1/genética
17.
Fish Shellfish Immunol ; 35(3): 979-87, 2013 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-23872473

RESUMEN

We report the differential expression of various genes related to the regulation of the innate immune responses, including pro-inflammatory (IL-1ß1, IL-8, TNF-α1, TNF-α2) and immune-suppressing (IL-10) cytokines, interferon-induced Mx-1 protein, enzymes regulating nitric oxide (inducible nitric oxide synthase, arginase-2) and eicosanoid (COX-2) production, and Toll-like pathogen pattern-recognition receptors TLR-3, TLR-5 and TLR-9, in two lympho-haematopoietic stromal cell lines derived from the spleen (trout splenic stroma, TSS) and the pronephros (trout pronephric stroma-2, TPS-2) of rainbow trout (Oncorhynchus mykiss), as well as in primary cultures of rainbow trout head kidney macrophages, after their exposure to the well-known immunostimulants LPS, levamisole and poly I:C. Although there were differences in the responses between the two stromal cell lines, using reverse transcription followed by real time polymerase chain reaction (RT-qPCR) we demonstrated that exposure to the immunostimulants, particularly poly I:C and LPS, resulted in significant changes in the expression of the immunoregulatory genes in the two stromal cell lines in many cases their responses resembling in fold change magnitudes and in response profiles to those observed in the primary macrophage cultures. Exposure to poly I:C and, with lower fold change values, to LPS produced upregulation of the pro- (IL-1ß, IL-8, TNF-α) and anti-inflammatory (IL-10) cytokine genes, as well as of the Mx-1 gene. Furthermore, the immunostimulation elicited the upregulation of COX-2, iNOS and arginase-2 genes in the cell lines. Likewise, the TSS and TPS-2 cell lines significantly upregulated the expression of TLR-3, TLR-5 and TLR-9 genes after exposure to the immunostimulants, thus explaining the ability of the stromal cells to recognise and respond to the immunostimulants. Such results give support to an important role of lympho-haematopoietic stromal cells in the development and control of pro-inflammatory responses in fish. The upregulation of genes of pro-inflammatory cytokines and of mediators of the innate immune responses correlates well with the previously demonstrated functional capacities, including phagocytosis, microbicidal activity and NO production, exhibited by the TSS and TPS-2 stromal cell lines when exposed to the same immunostimulants. On the other hand, the expression of immunosuppressing genes (IL-10, COX-2 and arginase-2) demonstrate that the lympho-haematopoietic stromal cells are also able to contribute to the control of inflammatory responses. This study reinforce the possibility of using histotypic cell cultures, as those formed by the TSS and TPS-2 cell lines, formed by heterogeneous cell populations that partially replicates the cell-cell and cell-extracellular matrix interactions, to develop cost-effective and repetitive in vitro systems for the screening of immunostimulant candidates for aquaculture, as they are able to replicate in vitro immune regulatory networks occurring in vivo.


Asunto(s)
Adyuvantes Inmunológicos/farmacología , Citocinas/metabolismo , Regulación de la Expresión Génica/inmunología , Inmunidad Innata , Macrófagos/efectos de los fármacos , Animales , Línea Celular , Citocinas/genética , Relación Dosis-Respuesta a Droga , Riñón Cefálico/citología , Levamisol/farmacología , Lipopolisacáridos/farmacología , Macrófagos/fisiología , Oncorhynchus mykiss , Poli I-C/farmacología
18.
Exp Ther Med ; 25(5): 210, 2023 May.
Artículo en Inglés | MEDLINE | ID: mdl-37090076

RESUMEN

The present study aimed to explore the clinical efficacy of laparoscopic partial splenectomy in the treatment of benign lesions of the spleen and partial splenic rupture. The clinical value of laparoscopic partial splenectomies performed between March 2015 and May 2022 was retrospectively analyzed. Cases considered included the following: 14 spleen cysts, five spleen hemangiomas, one spleen hamartoma and two splenic ruptures. Lesion diameters of cases ranged from 5.0-11.3 cm. Results indicated that all 22 patients had an uneventful surgery, including 11 cases with lesions located in the upper pole of the spleen, nine in the lower pole of the spleen, one in the upper middle pole and one in the middle and lower pole. Operation time ranged from 75-180 min (mean: 120±17 min) and intraoperative bleeding ranged from 80-300 ml (mean: 178±70 ml). The average duration of postoperative hospitalization was 6±2 days, with all patients followed up for 10-12 months. Patients reported no symptoms of discomfort and had platelet levels within normal range. In conclusion, laparoscopic partial splenectomy allows for lesion resection while retaining normal splenic function and may be effectively used for treating benign spleen tumors and partial splenic rupture. However, the operation is difficult and surgeons must be able to perform minimally invasive techniques and strictly screen cases.

19.
Cureus ; 15(4): e37137, 2023 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-37153304

RESUMEN

Littoral cell angioma (LCA) is a rare, primary vascular tumor of the spleen that originates from the cells lining the venous sinuses of the spleen. Around 150 cases have been reported worldwide, with most reported cases of LCA being non-malignant but with unspecified malignant potential. As of 2022, three cases of malignant LCA have been reported. A 75-year-old male with a history of monoclonal gammopathy of uncertain significance presented with left upper outer quadrant abdominal pain. Ultrasound (US) scan showed a 10.5 cm round, circumscribed mass lesion, with hyperechoic foci, occupying the posterolateral aspect of the spleen. US-guided core needle biopsy of the mass revealed a diagnosis of "atypical cells present, suggestive of vascular neoplasm of the spleen," which was based on histologic and immunohistochemistry characteristics. Due to the size of the lesion, a malignant neoplasm was suspected, and a splenectomy was performed. Histological and immunohistochemical features of the splenic lesion returned a final diagnosis of benign LCA.

20.
Heliyon ; 9(9): e20073, 2023 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-37809999

RESUMEN

Diffuse large B-cell lymphoma (DLBCL) is a highly aggressive B-lymphocyte-derived malignant proliferative disease that is currently one of the leading causes of death in HIV patients. The incidence of lymphoma in HIV patients is 60-200 times higher than in the general population compared to the non-HIV population, and diffuse large B-cell lymphoma can cause numerous disease manifestations, especially in severely immunocompromised individuals. We treated a case of HIV-associated splenic diffuse large B-cell lymphoma combined with hepatitis C and tuberculous meningitis. In this case, diffuse large B-cell lymphoma of the spleen was difficult to diagnose. Second, simultaneous treatment of multiple diseases requires consideration of drug interactions. Our case highlights the diagnostic value of early tissue biopsy and the importance of avoiding drug interactions during treatment, and the selection of appropriate CART, anti-hepatitis C, and anti-tuberculosis protocols to reduce mortality from diffuse large B-cell lymphoma comorbidification.

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