Various Disorders (various + disorders)

Distribution by Scientific Domains


Selected Abstracts


Pomegranate flower: a unique traditional antidiabetic medicine with dual PPAR-,/-, activator properties

DIABETES OBESITY & METABOLISM, Issue 1 2008
Yuhao Li
PPARs are transcription factors belonging to the superfamily of nuclear receptors. PPAR-, is involved in the regulation of fatty acid (FA) uptake and oxidation, inflammation and vascular function, while PPAR-, participates in FA uptake and storage, glucose homeostasis and inflammation. The PPARs are thus major regulators of lipid and glucose metabolism. Synthetic PPAR-, or PPAR-, agonists have been widely used in the treatment of dyslipidaemia, hyperglycaemia and their complications. However, they are associated with an incidence of adverse events. Given the favourable metabolic effects of both PPAR-, and PPAR-, activators, as well as their potential to modulate vascular disease, combined PPAR-,/-, activation has recently emerged as a promising concept, leading to the development of mixed PPAR-,/-, activators. However, some major side effects associated with the synthetic dual activators have been reported. It is unclear whether this is a specific effect of the particular synthetic compounds or a class effect. To date, a medication that may combine the beneficial metabolic effects of PPAR-, and PPAR-, activation with fewer undesirable side effects has not been successfully developed. Pomegranate plant parts are used traditionally for the treatment of various disorders. However, only pomegranate flower has been prescribed in Unani and Ayurvedic medicines for the treatment of diabetes. This review provides a new understanding of the dual PPAR-,/-, activator properties of pomegranate flower in the potential treatment of diabetes and its associated complications. [source]


Salivary gland parameters and clinical data related to the underlying disorder in patients with persisting xerostomia

EUROPEAN JOURNAL OF ORAL SCIENCES, Issue 2 2007
Ianthe Van Den Berg
This study assessed salivary gland parameters and clinical data in patients referred to our clinic because of persisting xerostomia of unknown origin, in order to facilitate early diagnosis and recognition of the underlying disorder. Most patients were referred for diagnostic analysis of a possible Sjögren's syndrome (SS). A complete diagnostic work-up was available in all patients (n = 176), including data on salivary gland function, saliva composition, sialography, salivary gland swelling, pattern of complaints, general health, and medication. Patients were diagnosed with SS (n = 62), sialosis (n = 45), sodium retention syndrome (n = 30), or medication-induced xerostomia (n = 9). In 30 patients no disease related to salivary gland pathology was found. Unstimulated whole salivary flow was decreased in all patients, except in patients with sodium retention syndrome and in patients without salivary gland pathology. Submandibular/sublingual salivary flow was lowest in SS patients. SS and sialosis patients had increased salivary potassium concentrations, whereas only SS patients had increased sodium concentrations. About half of the sialosis patients mainly complained of persistent parotid gland swelling. Xerostomia-inducing medication was used by most patients. It was concluded that gland-specific sialometry and sialochemistry is useful in discriminating between the various disorders causing persisting xerostomia. [source]


Endoplasmic reticulum dysfunction , a common denominator for cell injury in acute and degenerative diseases of the brain?

JOURNAL OF NEUROCHEMISTRY, Issue 4 2001
Wulf Paschen
Various physiological, biochemical and molecular biological disturbances have been put forward as mediators of neuronal cell injury in acute and chronic pathological states of the brain such as ischemia, epileptic seizures and Alzheimer's or Parkinson's disease. These include over-activation of glutamate receptors, a rise in cytoplasmic calcium activity and mitochondrial dysfunction. The possible involvement of the endoplasmic reticulum (ER) dysfunction in this process has been largely neglected until recently, although the ER plays a central role in important cell functions. Not only is the ER involved in the control of cellular calcium homeostasis, it is also the subcellular compartment in which the folding and processing of membrane and secretory proteins takes place. The fact that blocking of these processes is sufficient to cause cell damage indicates that they are crucial for normal cell functioning. This review presents evidence that ER function is disturbed in many acute and chronic diseases of the brain. The complex processes taken place in this subcellular compartment are however, affected in different ways in various disorders; whereas the ER-associated degradation of misfolded proteins is affected in Parkinson's disease, it is the unfolded protein response which is down-regulated in Alzheimer's disease and the ER calcium homeostasis that is disturbed in ischemia. Studying the consequences of the observed deteriorations of ER function and identifying the mechanisms causing ER dysfunction in these pathological states of the brain will help to elucidate whether neurodegeneration is indeed caused by these disturbances, and will help to fascilitate the search for drugs capable of blocking the pathological process directly at an early stage. [source]


Case study on eye abnormalities in tank-reared hybrid walleyes (Sander vitreus×S. canadensis)

AQUACULTURE RESEARCH, Issue 5 2006
Mary Ann Garcia-Abiado
Abstract Hybrid walleye is important for recreational fisheries and is a potential aquaculture species in the north central region of the United States. Stress related to intensive culture conditions has been documented to cause eye lesions in fish. Finfish eyes do not have eyelids, hence the cornea is permanently exposed to mechanical damage and toxic substances. We documented various disorders of the eye in juvenile hybrid walleyes reared in a flow-through tank system. Abnormalities include exophthalmia, enophthalmia, unilateral loss of globe and bilateral loss of globe. These lesions negatively affected body weight, specific growth rate and condition factor of hybrid walleyes reared in tanks. [source]


Recent trends in non-viral vector-mediated gene delivery

BIOTECHNOLOGY JOURNAL, Issue 11 2009
Atul Pathak
Abstract Nucleic acids-based next generation biopharmaceuticals (i.e., pDNA, oligonucleotides, short interfering RNA) are potential pioneering materials to cope with various incurable diseases. However, several biological barriers present a challenge for efficient gene delivery. On the other hand, developments in nanotechnology now offer numerous non-viral vectors that have been fabricated and found capable of transmitting the biopharmaceuticals into the cell and even into specific subcellular compartments like mitochondria. This overview illustrates cellular barriers and current status of non-viral gene vectors, i.e., lipoplexes, liposomes, polyplexes, and nanoparticles, to relocate therapeutic DNA-based nanomedicine into the target cell. Despite the awesome impact of physical methods (i.e., ultrasound, electroporation), chemical methods have been shown to accomplish high-level and safe transgene expression. Further comprehension of barriers and the mechanism of cellular uptake will facilitate development of nucleic acids-based nanotherapy for alleviation of various disorders. [source]


Therapeutic management of neonatal chylous ascites: report of a case and review of the literature

ACTA PAEDIATRICA, Issue 9 2010
Belma Saygili Karagol
Abstract Congenital chylous ascites is a rare condition seen in the neonatal period and the data on pathogenesis and treatment modalities are limited. In this article, we report a case of neonate with chylous ascites and review the therapeutic management procedures on chylous ascites in childhood. We present our experience in the diagnosis and treatment of this condition. Conclusion:, Medium-chain triglycerides (MCT)-based diet can be tried as a first option in chylous ascites treatment. In resistant or unresponsive cases, somatostatin along with TPN can have use in closing the lymphatic leakage or relieving the symptoms effectively and rapidly. Conventional regimens including enteral feeding with MCT-based formula can then be re-administered as a maintenance treatment after reduction of lymph flow with the use of total parenteral nutrition (TPN) and somatostatin infusion combination. Patient-specific approach should be attempted for chylous ascites caused by various disorders and started as soon as possible. [source]


Chemical induction of HO-1 suppresses lupus nephritis by reducing local iNOS expression and synthesis of anti-dsDNA antibody

CLINICAL & EXPERIMENTAL IMMUNOLOGY, Issue 2 2004
Y. TAKEDA
SUMMARY There is accumulating evidence that haem oxygenase (HO)-1 plays a protective role in various disorders. The beneficial efficacy of HO-1 induction therapy has been shown in renal diseases such as glomerulonephritis, interstitial nephritis and drug induced nephrotoxicity. However, involvement of HO-1 in the development of autoimmune renal diseases remains uncertain. To assess the clinical efficacy of HO-1 induction therapy for lupus glomerulonephritis, MRL/lpr mice were intraperitoneally injected with 100 µmol/kg hemin, a potent HO-1 inducer, or PBS as controls, once a week from 6 weeks of age to 21,24 weeks-old. We found that treatment with hemin led to a significant reduction of proteinuria and remarkable amelioration of glomerular lesions accompanied by decreased immune depositions. In addition, the circulating IgG anti-double-stranded DNA antibody level was significantly decreased in hemin treated mice when compared with controls. A single intraperitoneal injection with hemin resulted in reduction of inducible nitric oxide synthase expression in the kidney and spleen, and serum interferon- , level. Our results suggest that HO-1 induction therapy ameliorates lupus nephritis by suppressing nitric oxide (NO) dependent inflammatory responses and attenuating production of pathogenic autoantibodies. [source]


The genetics of autoimmune endocrine disease

CLINICAL ENDOCRINOLOGY, Issue 1 2003
Karen F. Tait
Summary The common autoimmune endocrinopathies result from an interaction between environmental factors and genetic predisposition. Several chromosomal gene regions have been shown to contribute to more than one disease, supporting the clinical observation that the autoimmune endocrine diseases cluster within individuals and families. Genetic studies have implicated the major histocompatability complex (MHC)-human leucocyte antigen (HLA) genes on chromosome 6p21, although this chromosomal region does not explain all of the genetic contribution to the various disorders. Non-MHC-HLA genes, including disease-specific loci, are beginning to be identified and the publication of the draft sequence of the human genome will undoubtedly expediate future discoveries. Combined with the establishment of large cohorts of subjects with disease and the development of technology capable of performing high-throughput genotyping, genetic studies are likely to impact on the future treatment and prevention of the common autoimmune endocrine diseases. [source]


Long-term circulatory and renal consequences of intrauterine growth restriction

ACTA PAEDIATRICA, Issue 7 2005
Umberto Simeoni
Abstract Intrauterine growth restriction (IUGR) and probably also early postnatal altered nutrition in very-low-birthweight babies may, in the long term, be followed by the various disorders that are included in the metabolic syndrome. This discovery has raised a new paradigm about the background to cardiovascular disease, arterial hypertension, obesity, type 2 diabetes and dyslipidaemic disorders that play a prominent role in shortening human life. In this review article, present knowledge about the background to renal dysfunction as seen in IUGR is summarized. The way in which arterial hypertension and cardiovascular dysfunction may be programmed in IUGR is also speculated. Conclusion: During the last decade, knowledge of the long-term consequences of IUGR has increased at a very rapid rate. At present, it is most important not only to develop efficient methods of preventing and diagnosing IUGR, but to work out follow-up and treatment programmes for the control of the disorders which may follow this condition. Proper postnatal feeding and infant growth may be essential for long-term outcome. [source]