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Respiratory and Thoracic Medicine

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Immune System and DNA Repair Defects in Ovarian Cancer: Implications for Locoregional Approaches.

In the last few years, substantial progress has been made in the treatment of ovarian cancer, with increased knowledge about the biology of the disease. Ovarian cancer is a neoplasm strongly linked to defects in DNA repair mechanisms, where deficiency in the homologous recombination (HR) system results in a better response of ovarian cancers to therapy, whether platinum-based chemotherapy, anthracyclines, or poly (ADP-ribose) polymerase (PARP) inhibitors. More recently, it has been demonstrated that different ovarian cancer histotypes may have different immunogenicity. Interestingly, defects i

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… Effect of Locoregional Therapeutic Approaches on the Immune System The aim of locoregional treatments is to deliver higher concentrations of chemotherapy (e.g., cisplatin or paclitaxel) to the peritoneal cavity than that measured in plasma after intravenous administration [ 72 , 73 ], permitting continuous …

ETIOLOGY OF YELLOW FEVER : X. COMPARATIVE IMMUNOLOGICAL STUDIES ON LEPTOSPIRA ICTEROIDES AND LEPTOSPIRA ICTEROHAEMOORRHAGIAE.

It has been previously reported that a filterable microorganism belonging to the genus Leptospira has been recovered from the blood or organ … fever in Guayaquil had the power to agglutinate and dissolve the organism when introduced into the peritoneal cavity of a normal guinea pig (Pfeiffer phenomenon). Moreover, the guinea pigs which had once been inoculated with the blood of yellow fever patients without succumbing to the infection, notwithstanding the fact that they had shown a definite febrile react …

Review of oncological emergencies in small animal patients.

Oncological emergencies can occur at any time during the course of a malignancy and need to be recognized promptly to maximize successful outcomes. Emergencies are characterized as chemotherapy-induced, paraneoplastic syndromes, or directly related to the neoplasm. Prompt identification with treatment of these emergencies can prolong survival and improve quality of life, even in the setting of terminal illness. This review aims to educate the reader on the pathophysiology, clinical presentation and treatment of some of these emergencies, and to review the current veterinary literature to help

Laparoscopic Partial Bladder Cystectomy for Bladder Endometriosis: A Combined Cystoscopic and Laparoscopic approach.

OBJECTIVE: Urinary tract endometriosis involves the bladder and/or the ureters and is present in approximately 1% of women with endometriosis [1]. Bladder endometriosis is the most frequent type of urinary tract endometriosis, occurring in about 70% to 85% of cases [2,3]. Bladder endometriosis is defined as the presence of endometrial glands and stroma in the detrusor muscle. Surgically, there are 2 ways of excising this disease. The first is by transurethral bladder resection of the tumor, and the second is laparoscopic/robotic/open partial cystectomy of the bladder endometriosis. Because the

Xenograft of Human Umbilical Mesenchymal Stem Cells from Wharton's Jelly Differentiating into Osteocytes and Reducing Osteoclast Activity Reverses Osteoporosis in Ovariectomized Rats.

We examined the effects of human umbilical cord-derived mesenchymal stem cells (HUMSCs) in Wharton's jelly on ovariectomy (OVX)-induced osteoporosis by using in vitro and in vivo experiments. Two months after OVX, the rats gained weight and had a decreased serum estradiol level . Both micro-computed tomography (micro-CT) and histochemical analyses revealed a marked decrease in the bone volume (BV) and collagen content within the head, neck, and distal condyle of the femur, indicating that the osteoporosis animal model was successfully established 2 mo after bilateral OVX. Subsequently, 2.5 × 1

Chimeric Antigen Receptor Design and Efficacy in Ovarian Cancer Treatment.

Our increased understanding of tumour biology gained over the last few years has led to the development of targeted molecular therapies, e.g., vascular endothelial growth factor A (VEGF-A) antagonists, poly[ADP-ribose] polymerase 1 (PARP1) inhibitors in hereditary breast and ovarian cancer syndrome (BRCA1 and BRCA2 mutants), increasing survival and improving the quality of life. However, the majority of ovarian cancer (OC) patients still do not have access to targeted molecular therapies that would be capable of controlling their disease, especially resistant or relapsed. Chimeric antigen rece

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… Tumour cells extrude from the primary tumour, survive anchorage-independent apoptosis as free-floating cells or form spheroids, then spread across the peritoneal cavity where they proliferate and interact with mesothelial cells and adipocytes of the omentum. … The same team demonstrated that L1-CAM-specific CAR T cells allow considerable control of solid tumour growth in an in vivo ovarian cancer xenograft model that exhibited clinically significant manifestations of widespread tumour metastasis in the peritoneal cavity and massive ascites. …

Hypercalcemia-Leukocytosis syndrome and adenosquamous lung carcinoma: An overlooked conjugation.

Hypercalcaemia and leukocytosis are two paraneoplastic conditions associated with poor prognosis. Adenosquamous carcinoma is a rare and aggressive histological subtype of lung cancer consisting of adenocarcinoma and squamous cell components. We report the case of a 57-year-old male smoker who was admitted to the Emergency Room with skull and neck tumefactions, confusion and deteriorated general condition. The complementary study in the ER revealed severe hypercalcaemia (19.8 mg/dL), leukocytosis (18.7 × 109/L) and extensive osteolytic lesions of the skull on cranioencephalic computer tomograph

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… Figure 3 Thoracicabdominopelvic CT scan revealed extensive consolidation to the lower lobe of the left lung with foci of necrosis (A) and presumably metastatic lesions to lymph nodes, peritoneal cavity and bones (B). …

Novel diagnostic options for endometriosis - Based on the glycome and microbiome.

BackgroundEndometriosis is a chronic gynaecological disease whose aetiology is still unknown. Despite its prevalence among women of reproductive age, the pathology of the disease has not yet been elucidated and only symptomatic treatment is available. Endometriosis has high latency and diagnostic methods are both limited and invasive.Aim of reviewThe aim of this review is to summarise minimally invasive or non-invasive diagnostic methods for endometriosis and their diagnostic efficiencies. Furthermore, we discuss the identification and diagnostic potential of novel disease biomarkers of microb

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… The most widely accepted theory of the pathogenesis of EMS is that of retrograde menstruation, wherein endometrial tissue is expelled into the peritoneal cavity during menstruation [28] . …

Extraluminal amyloidoma of the pelvic cavity causing large bowel obstruction.

AMYLOIDOSIS IS A GROUP OF DIVERSE DISORDERS THAT FALL INTO SEVERAL MAJOR CATEGORIES: primary, secondary, dialysis-associated, and hereditary forms. Clinically, amyloidosis may be categorized as localized or systemic. The gastrointestinal tract is among the most common places for deposition of amyloid, but large, localized amyloid deposits are an uncommon occurrence and rarely cause extraluminal bowel compression resulting in obstruction as was seen in the case presented in this clinical scenario.

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… Management of this patient's disease was complicated due to extensive spread throughout the peritoneal cavity and its proximity to vital structures. Surgical debulking has been described in treatment of limited disease by relieving the space-occupying effects of the amyloidoma [ 7 ]. …

Targeted Alpha Therapy: Progress in Radionuclide Production, Radiochemistry, and Applications.

This review outlines the accomplishments and potential developments of targeted alpha (α) particle therapy (TAT). It discusses the therapeutic advantages of the short and highly ionizing path of α-particle emissions; the ability of TAT to complement and provide superior efficacy over existing forms of radiotherapy; the physical decay properties and radiochemistry of common α-emitters, including 225Ac, 213Bi, 224Ra, 212Pb, 227Th, 223Ra, 211At, and 149Tb; the production techniques and proper handling of α-emitters in a radiopharmacy; recent preclinical developments; ongoing and completed clinica

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… cavity. … After intraperitoneal injection, minimal myelosuppression and radiopharmaceutical redistribution outside the peritoneal cavity were observed; however, no patient exhibited a partial response [ 116 ]. …

Микробиота человека в области здравоохранения и отдельные раковые заболевания.

Большинство эпителиальных поверхностей нашего тела, пищеварительный тракт, дыхательные и врожденные системы, колонизируются большим количеством бактерий, археи, грибов, протозоанов и вирусов. Эти микробиота, особенно кишки, играют важную и полезную роль в пищеварении, метаболизме и синтезе витаминов. Их метаболиты стимулируют производство цитокина человеком, которое используется против потенциальных патогенов. На состав микробиоты влияет ряд внутренних и внешних факторов, включая питание, возраст, болезни и образ жизни. Такие изменения, называемые дисбиозом, могут быть связаны с развитием разл

Rare Extraoral Plasmablastic Lymphoma in the Context of HIV and Toxoplasmosis: A Detailed Case Analysis With Therapeutic Insights.

Plasmablastic lymphoma (PBL), a rare aggressive B-cell malignancy linked to HIV, is increasingly noted in extraoral sites beyond its traditional oral cavity presentation. This case report details a 48-year-old HIV-positive woman with prior cerebral toxoplasmosis, presenting with facial swelling, pain, proptosis, and dysphagia despite antiretroviral therapy and cotrimoxazole prophylaxis (CD4 120 cells/μL, suboptimal viral suppression). Imaging identified a sinonasal mass with nasopharyngeal involvement and lymphadenopathy, with immunohistochemistry confirming PBL (MUM1+, weakly CD79a+, CD20-, C

Exosome-Enriched Hub Gene Networks Identify Diagnostic Biomarkers and Repurposable Therapeutic Targets in Endometriosis.

Endometriosis is a heterogeneous chronic inflammatory disorder associated with substantial diagnostic delay and limited therapeutic options, highlighting the need of robust non-invasive biomarkers and actionable molecular targets to complement existing low-sensitivity tests. To identify conserved pathogenic mechanisms with translational potential, here, we uniformly reprocessed three independent the Gene Expression Omnibus (GEO) microarray cohorts (GSE7305, GSE25628, and GSE11691) and applied a strict, directionally consistent intersection strategy to identify conserved transcriptional signals

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… Sampson’s retrograde menstruation model, the most broadly accepted, posits that endometrial fragments shed during menses reflux through the fallopian tubes into the peritoneal cavity, where they implant and proliferate to form ectopic lesions [ 1 ]. … Role of the peritoneal cavity in the prevention of postoperative adhesions, pain, and fatigue. Fertil. Steril. 2016;106:998–1010. doi: 10.1016/j.fertnstert.2016.08.012. 71. Gomel V., Koninckx P.R. Microsurgical principles and postoperative adhesions: Lessons from the past. Fertil. …

Pathology Competencies in Medical Education and Educational Cases: Update 2023.

Pathology is a core component of medical school curricula because understanding the pathogenesis of the disease is foundational both for diagnostic efficiency and optimal use of ancillary resources in patient care. The Pathology Competencies for Medical Education (PCME) were developed as a national resource of expectations of pathology knowledge for medical students. The PCME are composed of three competencies: disease mechanisms and processes, organ system pathology, and diagnostic pathology and therapeutic pathology. The learning goals and learning objectives of the PCME that were first publ

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… Objective GT3.11: Peritoneal Cavity . Discuss the etiology, pathogenesis, and clinicopathologic features of neoplasms affecting the peritoneal cavity. … Outline the pathogenesis and clinicopathologic features of infectious and other inflammatory disorders affecting the peritoneal cavity. …

Ferret coronavirus-associated diseases.

A novel coronavirus of ferrets was first described in 1993. This coronavirus caused an enteric disease called epizootic catarrhal enteritis (ECE). Recently, a ferret systemic coronavirus (FRSCV)-associated disease was discovered. This new systemic disease resembles the dry form of feline infectious peritonitis (FIP) and has been reported in the United States and Europe. This article addresses the clinical signs, pathology, pathogenesis, diagnosis, treatment, and prevention of this ferret FIP-like disease.

XTP8 Promotes Ovarian Cancer Progression by Activating AKT/AMPK/mTOR Pathway to Regulate EMT.

Ovarian cancer (OC) ranks as the fifth leading cause of cancer-related death in women. The main contributors to the poor prognosis of ovarian cancer are the high rates of recurrence and metastasis. Studies have indicated a crucial role for hepatitis B virus X Ag-Transactivated Protein 8 (XTP8), a protein containing the DEP domain, in various cellular processes, including cell growth, movement, and differentiation, across several types of cancers. However, the role of XTP8 in ovarian cancer remains unclear. We observed elevated expression of XTP8 in ovarian cancer. Silencing XTP8 inhibited cell

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… After detachment from the primary tumor and entry into the peritoneal cavity, these cells either freely float in ascites or form multicellular aggregates (MCAs), which, upon interaction with the peritoneal cavity surface and the subepithelial extracellular matrix, give rise to secondary tumor lesions …

Targeting myeloid villains in the treatment with immune checkpoint inhibitors in gastrointestinal cancer.

Despite the clinical outcomes being extremely limited, blocking immune inhibitory checkpoint pathways has been in the spotlight as a promising strategy for treating gastrointestinal cancer. However, a distinct strategy for the successful treatment is obviously needed in the clinical settings. Myeloid cells, such as neutrophils, macrophages, dendritic cells, and mast cells, are the majority of cellular components in the human immune system, but have received relatively less attention for the practical implementation than T cells and NK cells in cancer therapy because of concentration of the int

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… Interestingly, PD1 is also expressed in Mø in the peritoneal cavity of mice and human. Ozawa et al. reported that PD1 + TAMs with dysfunctional phagocytosis are expanded in the peritoneal cavity with disseminated tumor cells in mouse CRC ascites models and GC patients ( 189 ). … Peritoneal tumor dissemination is frequently seen in GI cancer, and leads to malignant ascites that suddenly and repeatedly relapses even after being drained from the peritoneal cavity, resulting in poor prognosis ( 190 ). …

IL-6/IL-12 суперсемейство цитокинов и регламентируемых лимфоцитов играет важнейшую роль в этиологии и борьбе с аутоиммунными заболеваниями CNS.

Цитокины влияют на решения наивных лимфоцитов о клеточной порче и определяют исход иммунной реакции путем подачи сигналов, регулирующих инициирование, интенсивность и продолжительность иммунной реакции. Вместе с тем аномальное регулирование физиологических уровней цитокина способствует развитию аутоиммунных и других подстрекательских заболеваний. Сверхсемейство цитокинов Interleukin 6 (IL-6)/IL-12 оказывает глубокое влияние на все аспекты иммунитета хостинга, и в ходе этого обзора мы уделяем особое внимание сигнальным путям, которые способствуют выполнению их функций, с уделением особого внима

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… IL-27-producing Bregs An innate-like IL-27 producing population of natural regulatory B-1a cell (i27-Breg) was recently identified in the peritoneal cavity and human umbilical cord blood ( 8 ). … In contrast, B-1 lymphocytes are the earliest B cells to arise during development from the fetal yoke sac and they reside mainly in the peritoneal cavity and cord blood ( 71 ). …

Multiple myelomas in cats.

Multiple myelomas are uncommon neoplasms of the bone marrow of cats [Weber NA, Tebeau CS (1998) An unusual presentation of multiple myeloma in two cats. Journal of the American Animal Hospital Association34 (6), 477-483]. Nine cats diagnosed with multiple myelomas were retrospectively identified over a 16-year period (1986-2002). Cats with multiple myelomas were older than 7 years (mean age 11.7 years); six males and three females were affected (2.1), but no breed predisposition was evident. Treatment of multiple myelomas consisted of supportive management in the nine cats and anti-neoplastic