cysts/hypoxia

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Pineal cysts - a benign consequence of mild hypoxia in a near-term brain?

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BACKGROUND Pineal cysts are benign glial uniloculated or multiloculated fluid-filled sacs located in the pineal gland region. Small pineal cysts are often found incidentally in healthy adults in 1.5-10.8%. Large cysts may cause neurological problems due to pressure exertion on adjacent

Targeted inactivation of fh1 causes proliferative renal cyst development and activation of the hypoxia pathway.

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Germline mutations in the fumarate hydratase (FH) tumor suppressor gene predispose to leiomyomatosis, renal cysts, and renal cell cancer (HLRCC). HLRCC tumors overexpress HIF1alpha and hypoxia pathway genes. We conditionally inactivated mouse Fh1 in the kidney. Fh1 mutants developed multiple clonal

Proangiogenetic molecules, hypoxia-inducible factor-1alpha and nitric oxide synthase isoforms in ovarian endometriotic cysts.

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Endometriosis is a common disease characterised by ectopic growth of endometrial tissue outside the uterine cavity. Angiogenesis has been implicated in the pathogenesis of the disease; some molecules, like hypoxia-inducible factor-1alpha (HIF-1alpha) and neuronal, endothelial and inducible nitric

Over expression of hypoxia-inducible protein 2, hypoxia-inducible factor-1alpha and nuclear factor kappaB is putatively involved in acquired renal cyst formation and subsequent tumor transformation in patients with end stage renal failure.

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OBJECTIVE We examined hypoxia-inducible protein 2, hypoxia-inducible factor-1alpha and nuclear factor-kappaB in acquired cystic disease of the kidney associated with renal cell carcinoma to elucidate the roles of these factors in cyst formation and subsequent tumor

Hypoxia-inducible factor-1α causes renal cyst expansion through calcium-activated chloride secretion.

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Polycystic kidney diseases are characterized by numerous bilateral renal cysts that continuously enlarge and, through compression of intact nephrons, lead to a decline in kidney function over time. We previously showed that cyst enlargement is accompanied by regional hypoxia, which results in the

[Heart anoxia and arrhythmia due to celomic cyst of the pericardium].

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Accelerated growth of hemangioblastoma in pregnancy: the role of proangiogenic factors and upregulation of hypoxia-inducible factor (HIF) in a non-oxygen-dependent pathway.

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Hemangioblastomas (HBs) are benign, highly vascular tumors, often characterized by loss of function of the von Hippel-Lindau (vHL) gene. They are the most common central nervous system tumor observed in vHL syndrome. Loss of function of the vHL gene creates a "pseudo-hypoxic" state, causing

Ruptured hydatid cyst masquerading as tension pneumothorax.

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We report a 35-year-old man who presented to us with features suggestive of a tension pneumothorax. However insertion of a chest tube did not result in any signs of improvement. Further investigation demonstrated that he had a ruptured hydatid cyst. He underwent an emergency thoractomy and excision

[Distribution and germination of Alexandrium sp. cysts in coastal areas of Southeast China Sea].

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Studies on the distribution and germination of Alexandrium sp. (A. tamarense + A. catenella) cysts in coastal areas of Southeast China showed that the cysts were only found at X1 and X2 of Xiamen Harbor, whose density was quite low (0.4 ind.g-1). In Guangxi, the cysts were found at G2 station, with

[A case of reexpansion pulmonary edema during fenestration of a giant hepatic cyst].

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We experienced a case of reexpansion pulmonary edema during the fenestration of giant hepatic cyst. The patient was a 56 year-old female who had been suffering from dyspnea due to a large abdominal mass for 3 months. The preoperative chest X-ray revealed remarkable elevation of diaphragm (right

Aquaporin-3 deficiency slows cyst enlargement in experimental mouse models of autosomal dominant polycystic kidney disease.

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Human autosomal dominant polycystic kidney disease (ADPKD) is characterized by bilateral renal cysts that lead to a decline in kidney function. Previous studies reported aquaporin (AQP)-3 expression in cysts derived from collecting ducts in ADPKD. To study the role of AQP3 in cyst development, we

Three-dimensional culture of newborn rat utricle using an extracellular matrix promotes formation of a cyst.

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The vestibule is the end organ devoted to sensing of head movements in space. To function properly, its mechano-receptors require the presence of a unique apical extracellular medium, the endolymph. Numerous studies have elucidated the mechanisms involved in the production and homeostasis of this

Hypoxia and Endothelial Dysfunction in Autosomal-Dominant Polycystic Kidney Disease.

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Autosomal-dominant polycystic kidney disease (ADPKD) is the most prevalent inherited kidney disease, characterized by growth of bilateral renal cysts, hypertension, and multiple extrarenal complications that eventually can lead to renal failure. It is caused by mutations in PKD1 or PKD2 genes

Macrophage migration inhibitory factor is regulated by HIF-1α and cAMP and promotes renal cyst cell proliferation in a macrophage-independent manner

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Progressive cyst growth leads to decline of renal function in polycystic kidney disease. Macrophage migration inhibitory factor (MIF) was found to be upregulated in cyst-lining cells in a mouse model of polycystic kidney disease and to promote cyst growth. In addition, MIF can be secreted by tubular

Breath-holding-like spells in an infant: an unusual presentation of lingual thyroglossal duct cyst.

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The authors report the case of an infant with a lingual thyroglossal duct cyst who presented with breath-holding-like spells, which actually represented life-threatening ball-valve obstruction of the larynx, leading to hypoxemia and transient cerebral dysfunction. When evaluating apparent

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