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Advances in understanding the role and mechanism of the cGAS-STING signaling pathway in ocular diseases.

The cGAS-STING signaling pathway plays a critical role in the immune defense against DNA viruses and in autoimmunity, coordinating a cascade of events that enhance cytokine production, particularly type I interferons. This review summarizes recent advancements in understanding the pathway's impact on various ocular diseases, including age-related macular degeneration (AMD), diabetic retinopathy, and uveitis. Activation of this pathway by cytoplasmic DNA from either damaged retinal cells or external pathogens induces inflammatory responses that may accelerate disease progression. Moreover, the …

Muscle involvement in Behçet's syndrome: a case report.

Behçet's syndrome, a systemic vasculitis of unknown aetiology, is classically characterized by recurrent aphthous ulcers, genital ulcers, uveitis, and cutaneous lesions. Myositis in Behçet's syndrome is rare. A unique case of Behçet's syndrome with gastrocnemius and tongue myositis as the presenting manifestations is presented here. The patient was admitted with fever, recurrent aphthous ulcers, and swelling and pain of the tongue and legs. Phlebitis of the deep-tissue vessels was seen in the tongue biopsy. A gastrocnemius muscle biopsy showed obvious muscle fibre degeneration, accompanied by …

Синдром Нейро-Бехчета: доклад по делу.

Синдром Бехчета является системным васкулитом, характеризующимся повторяющимися оральными и генитальными язвами, увеитизмом и часто связанным с множественными системами органов. Неврологическое участие является редким осложнением синдрома Бехчета и связано со значительной заболеваемостью и смертностью. Синдром Neuro-Behchet (NBS) представляет собой сочетание неврологических проявлений у пациента с синдромом Бехчета, включая расстройства движения, миэлопатический синдром, внутричерепную гипертонию и многократную склероз-подобную презентацию. Диагноз NBS может быть проблематичным из-за широкого

Совпадение в аннотации оригинала
Behçet's syndrome is a systemic vasculitis characterized by recurrent oral and genital ulcers, uveitis, and often involvement of multiple organ systems. Neurological involvement is a rare complication of Behçet's syndrome and is associated with significant morbidity and mortality. Neuro-Behçet's syndrome (NBS) is a combination of neurologic manifestations in…

Rare manifestations of sarcoidosis in a young boy.

Sarcoidosis is a chronic multisystem granulomatous disease of unknown etiology. It is rare in young children. A 9-year-old boy presented with failure to thrive, skin rashes, persistent fever, and respiratory symptoms since 5 years of age. Blood investigations done showed elevated serum calcium and angiotensin converting enzyme levels and biopsy of the rashes on the left shin revealed non-caseating granulomatous lesion. Computed tomography of chest revealed interstitial lung disease and examination of eyes showed bilateral uveitis. He also had sensorineural hearing impairment, nephrocalcinosis,…

Extraintestinal Manifestations in Inflammatory Bowel Disease: From Pathophysiology to Treatment.

The inflammatory bowel diseases (IBDs) are systemic conditions that affect not only the gastrointestinal tract but also other parts of the body. The presence of extraintestinal manifestations can significantly impact the quality of life in IBD patients. Peripheral arthritis, episcleritis, and erythema nodosum are frequently associated with active intestinal inflammation and often improve with standard treatment targeting intestinal inflammation. In contrast, anterior uveitis, ankylosing spondylitis, and primary sclerosing cholangitis typically occur independently of disease flares. The inciden…

Case Report on the Effect of AlpaWash® on the Healing of a Post-surgical Wound in a Female Canine Initially Diagnosed with Pyometra.

Pyometra is a common disease in intact female canines characterized by an infection of the uterus. If it is not treated immediately, it could result in various complications such as fistulous tract development, sepsis, hemorrhage, uveitis, conjunctivitis, pyelonephritis, urinary tract infection, and myocarditis. In this case report, we highlight the benefits of the application of a topical ointment on wound healing after ovariohysterectomy in canine Pyometra. Following surgical intervention, the dog developed necrosis in her nipples and lost a portion of her mammary tissues. A large cyst forme…

Multimodal Imaging of a Unique Transitory Finding in Ocular Syphilis.

Purpose: To describe a unique finding in ocular syphilis using multimodal imaging. Methods: A single case was analyzed. Results: A 52-year-old man presented with chronic syphilitic posterior uveitis and was treated with intravenous and intramuscular penicillin for systemic manifestations, topical steroids, and unilateral bevacizumab for secondary macular neovascularization. Bilateral transitory outer retinal microcysts were subsequently seen on optical coherence tomography, with an appearance distinct from outer retinal lesions found in other degenerative retinal diseases. Conclusions: Longsta…

Peripapillary fluid: Obvious and not so obvious!

Intraretinal or subretinal fluid in the peripapillary area can be clinically visualized in conditions such as peripapillary choroidal neovascularization, optic disc pit maculopathy, and optic nerve head tumors and granulomas. Optical coherence tomography (OCT) helps to visualize peripapillary fluid in many other chorioretinal conditions such as peripapillary pachychoroid syndrome, posterior uveitis, central retinal vein occlusion, malignant hypertension, hypotonic maculopathy as well as neuro-ophthalmological conditions such as glaucoma, microcystic macular edema and disc edema due papilledema…

CHOROIDAL NEOVASCULAR MEMBRANE ASSOCIATED WITH CHOROIDAL LYMPHOMA.

PURPOSE: A patient with choroidal lymphoma associated with a choroidal neovascular membrane (CNVM) is described. METHODS: Observational case report. RESULTS: A 70-year-old man was referred for evaluation of bilateral uveitis with concern for intraocular lymphoma. Fundoscopic examination was notable for vitreous opacities and diffuse yellow-white, creamy choroidal infiltrates in both eyes. In the left eye, areas of hemorrhage and intraretinal fluid in the macula consistent with a CNVM were noted. Multimodal imaging confirmed the diagnosis of bilateral choroidal lymphoma with a CNVM in the lef…

[Hydroxychloroquine for non-severe extra-pulmonary sarcoidosis].

Sarcoidosis can develop into a chronic disease in about 30% of cases. When general treatment is indicated, corticosteroids are the first-lin … rticularly to treat skin, bone and joint sarcoidosis, as well as hypercalcemia and certain types of uveitis. This review summarises the state of knowledge on steroid-sparing therapy in sarcoidosis, particularly in its extra-pulmonary form. These data support the need for good quality therapeutic trials to validate the use of hydroxychloroquine in this spe …

Neuro-Behcet's syndrome: Case report and literature review.

Behcet's disease (BD) is a multisystem, autoimmune vasculitis disorder affecting small, medium, and large blood vessels, with poorly understood pathogenesis. It commonly presents with recurrent aphthous ulcers, genital ulcers, skin lesions, and bilateral uveitis. Neurological symptoms are present in less than 10% of cases and develop, on average, 5-6 years after the first non-neurological symptoms. This presentation, known as Neuro-Behcet's disease (NBD), is associated with a worse prognosis of BD. Treatment for NBD is dependent on the severity of symptoms and the presence of other systemic ma…

18F-Fluorodeoxyglucose Positron Emission Tomography/Magnetic Resonance Imaging Appearance of Gastrointestinal Behcet's Disease.

Behcet's syndrome (BS) is a variable vessel vasculitis with multi-organ involvement. Recurrent episodes of oral and genital ulcers, papulopustular and erythema nodosum-like skin lesions, and arthritis are relatively more frequent, whereas uveitis, venous and arterial lesions, nervous system, and gastrointestinal involvement are less common, but are severe manifestations. The frequency of gastrointestinal involvement shows important variation between countries as more common in the Far East and the United States, and much less common in Turkey and the Middle East. The main clinical signs of gas…

An excursion into ocular tuberculosis.

Till today, ocular tuberculosis (OTB) presents clinicians with significant challenges in diagnosis and management. There is no one-size-fits … sentations, investigations, and updated management principles for patients with presumed tubercular uveitis.

Targeting Microglia to Treat Degenerative Eye Diseases.

Microglia have been implicated in many degenerative eye disorders, including retinitis pigmentosa, age-related macular degeneration, glaucoma, diabetic retinopathy, uveitis, and retinal detachment. While the exact roles of microglia in these conditions are still being discovered, evidence from animal models suggests that they can modulate the course of disease. In this review, we highlight current strategies to target microglia in the eye and their potential as treatments for both rare and common ocular disorders. These approaches include depleting microglia with chemicals or radiation, reprog…

A case of aggressive natural killer cell leukemia.

A 23-year-old man presented with a 1-month history of a red and painful right eye, with visual acuity reduced to hand motions. Examination showed uveitis with keratic precipitates, cells and flare in the anterior chamber, and vitritis that obscured visualization of the right fundus. The following week, he was noted to have the following left-sided findings: reduced visual acuity (6/18), painless upper eyelid edema, an elevated, pink bulbar conjunctival lesion, limitation of ocular abduction, paresthesia in the V1 and reduced sensation in the V2 distributions. Blood tests showed pancytopenia. R…

Systemic Sarcoidosis with Psoriasiform Plaques and Patchy Nonscarring Alopecia.

Cutaneous sarcoidosis occurs in about one-quarter of patients with systemic disease and presents with either specific or nonspecific signs. Psoriasiform sarcoidosis is an uncommon presentation. Herein, study authors report a rare case of systemic sarcoidosis that presented with psoriasiform plaques and patchy alopecia. The main patient complaint was disfigurement from skin lesions over different areas of his body, followed by scalp alopecia and uveitis. These lesions were well-defined plaques, some oozing and others scaly. Dermoscopic examination revealed yellow-orange globular structure. A bi…

[The research progress of cytomegalovirus corneal endotheliitis].

Cytomegalovirus(CMV) corneal endotheliitis is an inflammatory disease of corneal endothelium caused by CMV infection. It mainly occurs in middle-aged and elderly immunocompetent people and has a relatively high incidence in Asia. It is characterized by localized corneal edema, coin-shaped or linear keratic precipitates and mild anterior chamber reaction, possibly with raised intraocular pressure or a history of recurrent anterior uveitis. The pathogenesis of this disease is not yet clear. Previous studies suggested it was related to viral infection and immune response; Therefore, the current t…

Presumed diffuse unilateral subacute neuroretinitis and cat-scratch disease: Dual infection in a single patient.

A healthy 35-year-old Malay woman presented with left eye pain for 1 week, and ocular examination showed evidence of panuveitis. She had granulomatous type of anterior uveitis with secondary high intraocular pressure (IOP). Fundus showed optic disc swelling, mild vitritis, and multiple subretinal lesions, which later formed a migratory track. A diagnosis of presumed diffuse unilateral subacute neuroretinitis was made. At the same time, the serology test for Bartonella henselae was positive. The patient was treated with antiglaucoma medicine and topical steroids. An antihelminthic was initially…

Recurrent intracranial hemorrhage and cerebral venous sinus thrombosis: an atypical case of Neuro-Behçet's Syndrome.

We report the case of a 22-year-old man with an history of headaches, seizures, cognitive impairment associated with recurrent intracranial hemorrhage (ICH), acute ischemic stroke (AIS), worsened over the last eighteen months for a new onset of uveitis and cerebral venous sinus thrombosis (CVST). After excluding common causes of lobar ICH, and some rare ones according to the diagnostic protocol proposed by Beuker et al, in the suspicion of Primary Angiitis of the Central Nervous System (PACNS), the gradual development of a low-grade fever, a cutaneous rash, and a papulopustular manifestation o…

The Functional Roles of IL-33/ST2 Axis in Ocular Diseases.

Interleukin-33 (IL-33), an important member of the IL-1 family, plays a pivotal role in regulating immune responses via combining with its receptor suppression of tumorigenicity 2 (ST2). We have already known IL-33/ST2 axis participates in the pathogenesis of various diseases, including liver diseases, renal diseases, and neurological diseases. Recently, emerging studies are indicating that IL-33/ST2 is also involved in a wide range of ocular diseases, such as allergic eye disease, keratitis and corneal regeneration, dry eye disease, uveitis, vitreoretinal diseases, and neuromyelitis optica sp…