Intercellular Substance Research Articles

Direct immunofluorescence of skin and hair in pemphigus

Background: The outer root sheath of the anagen and telogen hair is structurally similar to the epidermal layer of the skin. Hence Direct Immunofluorescence(DIF) demonstrating Antibodies to Desmoglein 1 and 3 in Pemphigus group of autoimmune bullous diseases would show a similar pattern in skin & hair. Aim: To compare DIF of skin and telogen hair in pemphigus group of patients in clinically active cases and those in remission. Method: 30 consecutive diagnosed cases of Pemphigus vulgaris (PV) (both active cases and remission) were selected for the prospective study. Other blistering diseases –Dermatitis herpitiformis, Chronic Bullous Dermatosis of childhood and vasulitis were excluded. Skin biopsy and telogen hair obtained by combing were subjected to Direct Immunoflurescence. (Fluorescein Isothyocyanate) FITC –conjugated rabbit antihuman IgG was used. The samples were viewed under fluorescence microscope using a blue filter (490 nm). Green fluorescence was observed. The pattern of staining & intensity of staining were compared. Results: 30 cases of Pemphigus included 22 cases of Pemphigus vulgaris(PV), 5 cases of Pemphigus Foliaceous(PF) and 3 of pemphigus erythematosus(PE). Pemphigus Vulgaris and Pemphigus Foliaceous patients with active disease showed strong ICS(Intercellular substance) deposits in both skin and hair. 37.5% and 50% of Pemphigus Vugaris and Pemphigus Foliaceous in remission showed weak deposits in hair only. All cases of Pemphigus Eryhtematosus showed only ICS pattern with no (BMZ) Basement membrane zone deposits. Conclusion: Direct Immunoflurescence of skin and hair are comparable in pattern and intensity. Telogen hair is a useful tool in remission period as it is easily accessible and picks up potential cases likely to develop relapse and therefore requiring close follow up. Keywords: DIF, Telogen hair, Skin, Pemphigus, Disease activity

Histological Identification of Animal Protein Ingredients

The results of microstructural research of powdery animal protein additives produced from pork collagen-containing connective tissue and blood plasma are presented. The analyzed samples had similar composition of collagen and elastin animal proteins. Generally, a protein agent based on animal connective tissue fibers only or in combination with granular eosinophilic protein of a different biological origin is taken as a sample. The rate of hydrolytic changes of connective tissue intercellular substance during technological processing of agents was found different. Plant protein and carbohydrate components were not found.

Morphological and histological changes in digestive tract development during starvation in the miiuy croaker.

A histological method was used to describe the ontogenetic development of the digestive tract of laboratory-reared miiuy croaker (Miichthys miiuy) and to evaluate the effects of short-term food deprivation on the morphology and histology of the digestive tract. Larvae and juveniles were maintained at 24 °C in a thermostatically controlled system. Three starvation experiments were conducted during different developmental stages: 1-7 days after hatching (dah; prior to benthic swimming); 26-35 dah (during settling); and 42-53 dah (after benthic swimming). According to the structural changes in the ontogenetic development of the digestive tract, three stages were observed. The first stage was from hatching to 3 dah; the digestive tract was undifferentiated in newly hatched larvae and then showed remarkable morphological changes and differentiation. During this period, larvae depended on endogenous nutrition. The second stage (4-20 dah) was a critical period in which larvae transitioned from endogenous feeding to exogenous feeding and the digestive tract fully differentiated into the buccopharynx, oesophagus, stomach, anterior intestine and posterior intestine. Goblet cells and vacuoles appeared in the digestive tract, and pharyngeal teeth and taste buds developed. During the third stage (20-36 dah), the gastric glands developed and the stomach differentiated into the fundic, cardiac and pyloric regions. At 25 dah, pyloric caeca developed and mucosal folds and spiral valves were clearly distinguishable. After 30 dah, the digestive tract did not undergo any noticeable differentiation, indicating the complete development of the digestive system. The wet weight and SGR (specific growth rate) of miiuy croaker larvae and juveniles greatly decreased when they were deprived of food, and compensatory growth was observed in re-feeding juveniles. The livers of starved larvae and juveniles were atrophied and dark coloured, the intestines were transparent and thin, and the stomach cubages were reduced. The histological effects of starvation were mainly evident in the degeneration of cells in digestive organs, as seen in the shrinkage and separation of cells and the loss of intercellular substances in the liver, pancreas, intestine and stomach. These changes became more severe with increased duration of starvation. In addition, the histological structure of the digestive tracts of starved larvae and juveniles partly recovered after re-feeding, and the effects of starvation on miiuy croaker were age dependent.

Extracellular ATP and other nucleotides-ubiquitous triggers of intercellular messenger release.

Extracellular nucleotides, and ATP in particular, are cellular signal substances involved in the control of numerous (patho)physiological mechanisms. They provoke nucleotide receptor-mediated mechanisms in select target cells. But nucleotides can considerably expand their range of action. They function as primary messengers in intercellular communication by stimulating the release of other extracellular messenger substances. These in turn activate additional cellular mechanisms through their own receptors. While this applies also to other extracellular messengers, its omnipresence in the vertebrate organism is an outstanding feature of nucleotide signaling. Intercellular messenger substances released by nucleotides include neurotransmitters, hormones, growth factors, a considerable variety of other proteins including enzymes, numerous cytokines, lipid mediators, nitric oxide, and reactive oxygen species. Moreover, nucleotides activate or co-activate growth factor receptors. In the case of hormone release, the initially paracrine or autocrine nucleotide-mediated signal spreads through to the entire organism. The examples highlighted in this commentary suggest that acting as ubiquitous triggers of intercellular messenger release is one of the major functional roles of extracellular nucleotides. While initiation of messenger release by nucleotides has been unraveled in many contexts, it may have been overlooked in others. It can be anticipated that additional nucleotide-driven messenger functions will be uncovered with relevance for both understanding physiology and development of therapy.

Response of left ventricular structure and function to chronic intermittent hypoxia in New Zealand white rabbits by echocardiography

Objective To observe the response of left ventricular (LV) function and structure to chronic intermittent hypoxia (CIH) early stage in New Zealand white rabbits by echocardiography. Methods The New Zealand white rabbits were placed in the CIH chamber and exposed to hypoxia for 8 weeks (6 hours/day, 6 days/week). The flow of nitrogen and oxygen were regulated into the customized chambers by the gas control delivery system. The fraction of inspired oxygen was changed from 21% to 8% for 25 s of every 170 s. LV structure and function was assessed by echocardiography at CIH 0, 1, 2, 4, 6, 8 weeks and histopathology was done by HE staining simultaneously. Results ①LV structural variables: compared with 0 week, LV posterior wall and interventricular septum thickness thickened at 6 week. LV end diastolic increased at 8 week (P 1. Isovolumic relaxation time (IVRT) decreased at 1 week and 2 week, but increased at 8 week (P<0.05). ④The myocardial pathology showed that myocardial fibers disordered slightly, cardiomyocytes swelled, nuclei increased and intracellular edema when exposed to CIH for 2 week and 4 week. Vacuolar degeneration, edema and congestion were found in intercellular substance at 6 week and 8 week. Conclusions ①LV systolic and diastolic function compensation started at CIH early stage then LV structure abnormality advent later. ②IVCT and IVRT are sensitive indicators of LV systolic and diastolic function compensation. Key words: Echocardiography; Anoxia; Ventricular function, left

Specificity of repetition priming: the role of chemical coding.

We investigate stimulus specificity of repetition priming in a tractable model system; the feeding network of Aplysia. Previous studies primarily focused on an aspect of behavior that is altered during ingestive priming, radula opening. Priming of radula opening occurs when two modulatory peptides [feeding circuit activating peptide (FCAP) and cerebral peptide-2 (CP-2)] are released from the cholinergic command-like neuron cerebral buccal interneuron 2. Effects of FCAP/CP-2 on radula opening motor neurons are cAMP mediated. The present experiments sought to determine whether FCAP/CP-2 and cAMP are also involved in the priming of radula opening during an incompatible activity, i.e., during egestive motor programs. Egestive priming is induced when motor programs are triggered by afferents with processes in the esophageal nerve. We demonstrate that egestive priming is not FCAP/CP-2 mediated. Instead, it is induced by an unrelated peptide (small cardioactive peptide), which exerts PKC-mediated effects. Our data, therefore, suggest that different feeding motor programs are primed via actions of different sets of intercellular and intracellular substances. We suggest that this accounts for the stimulus specificity that can be characteristic of repetition priming. Different stimuli activate different central pattern generator inputs. These inputs release different modulators, which induce functionally distinct motor programs.

Histological and Ultrastructural Studies of Caecal Tonsil in Chicken (Gallus Domesticus)

Light and electron microscopic studies on caecal tonsil were done in layer chicken of various age groups ranging from day-old to forty weeks. The caecal tonsil revealed two types of lymphoid aggregations (germinal centre). The first type had an incomplete capsule and the second type was found encapsulated with connective tissue. The capsule of the germinal centre consisted of many layers of flattened reticular cells separated with an intercellular substance. The germinal centre consisted of lymphoblasts, lymphocytes of various sizes, reticular cells, plasma cells, mast cells and macrophages. In forty week-old birds, the lymphocytic population was observed to be comparatively reduced and more number of fibroblasts and collagen fibres were noticed. The caecal tonsil also had M cells with short and irregular microvillus.

Nidogen-1: a candidate biomarker for ovarian serous cancer.

Effective biomarkers for early detection of ovarian cancer are needed. Our study previously showed that basement membrane protein, nidogen-1 plasma level was significantly increased in ovarian cancer patients. This study aimed to examine the plasma levels of nidogen-1 in a large patient population to evaluate its effectiveness in ovarian serous carcinoma and expression in tumor tissues. The concentration of nidogen-1 in circulating plasma specimens of 265 ovarian serous cancer patients and 98 healthy individuals were assayed by enzyme linked immunosorbent assay. The medical records of 265 ovarian serous cancer cases were reviewed retrospectively. The expression status of nidogen-1 in tumor tissues of 44 ovarian serous carcinoma patients was examined by immunohistochemical analysis. For statistical analysis, we used the Mann-Whitney U test, Fisher's exact test and receiver operating characteristic. Protein levels of nidogen-1 were considerably raised in the plasma from ovarian serous cancer patients compared with those in healthy controls (P < 0.001), especially elevated in patients with advanced stage and those received neoadjuvant chemotherapy followed by interval debulking surgery. However, it was irrelevant to the grade, chemotherapy sensitivity or residual tumor of the ovarian serous carcinoma cases investigated (P > 0.05). Receiver operating characteristic curve analysis for nidogen-1 showed that it could discriminate patients with ovarian serous carcinomas from healthy controls [areas under the curve (AUC): 0. 65, 95%CI, 0.59-0.71], but CA125 was superior (AUC: 0. 98, 95%CI, 0.96-0.99). The immunohistochemical staining result showed that nidogen-1 protein was localized both in the cancer cell cytoplasm and intercellular substance, mainly expressed in extracellular matrix of ovarian serous carcinoma tissues (the positive rate was 77.3%). Our study suggests that plasma nidogen-1 may be used as a diagnostic biomarker for ovarian serous carcinoma and can reflect the tumor burden.

Полисахариды клеток соединительной ткани стенки двенадцатиперстной кишки эмбрионов человека

These studies are conducted on 36 human embroys and foetus. Four stages are marked out in the development of connective tissue of the duodenum: 1) mesenchymal stage (28-35 the day of the embryo); 2) the stage of loose embryonic connective tissue (35 days - 3.5 months of foetus); 3) the stage of formation of the definitive loose connective tissue (3,5-6,5 months of the fetus); 4) the stage of initial definitive development (6,5 months before birth of the fetus). Each stage is characterized by a specific set of cellular differens, chemical composition of polysaccarides of cells of connective tissue and intercellular substance. On mesenchymal stage of development, the cells and intercellular substance CHIC-positive substances – contain glycogen and proteoglycans that give metachromasia, stained with alcian blue on Shubitch, Hale, but CHIC are negative. At the stage of loose connective tissue in mesenchymal cells, the reduction of glycogen and accumulation of glycosaminoglycans are identified. Glycogen, hyaluronic acid and precursors sulfated groups glycosaminogly-cans are detected in fibroblasts, endothelium of capillaries, in primary blood cells, in macrophages. At the stage of formation of loose connective tissue, there is the accumulation of TIME – amelanotic compounds (proteoglycans) in the cells and in the intercellular substance. Identification of them showed that the precursors of sulfated glycosaminoglycans and chondroitin sulfates (HSC) type C are identified. The intensity of the response to glycogen decreases. In the initial definitive development in the cytoplasm of fibroblasts – there is moderate staining on Hale-positive substances, poor color on Shubich and toluidine blue. In plasmablastics and in B-lymphocytes, the glycogen and glycosaminoglycans types of hyaluronic acid are identified. In the cytoplasm of mast cells, the substances such as hyaluronic acid, HSH type and unfinished synthesis heparina are identified.

Skin photoageing: mechanisms of development and particular features of clinical manifestations

The article discloses current concepts of mechanisms of development of skin photoageing caused by UV irradiation (UVA and UVB). Chronic exposure of skin to UV irradiation results in damage of genome DNA, development of DNA mutations, damage of proteins, membrane lipids, collagen and yellow fibers, degradation of the intercellular substance of the skin, development of a chronic inflammation, immunosuppression, melanogenesis disorders and increased angiogenesis. The authors described major clinical manifestations of skin photoageing and their histological characteristics.

Radiolabeling of EGCG with 125I and its biodistribution in mice

The aim of the present study was to label EGCG with 125I and to determine its radiopharmaceutical potential in mice. EGCG was labeled with 125I using the iodogen method. The labeling yield and the radiochemical purity of 125I–EGCG were determined by radio thin-layer chromatography (RTLC). The Labeling yield was approximately 89.4 %. The radiochemical purity was approximately 96.4 %. The biodistribution studies of the labeled compound (specific activity; 0.47 TBq/μg) were performed in male Kunming mice. The uptakes of 125I–EGCG in some organs were determined at different time after injection to the mice. The radioactivity in each organ was counted and the percentage of injected activity per gram of tissue weight (%ID/g) for each organ and blood was calculated. Incorporation of radioactivity in the various tissue/organ was confirmed by microautoradiography. 125I–EGCG uptake in the stomach and salivary gland was higher than other organ/tissue. The black silver grains was concentrated in the nucleus, cytoplasm, intercellular substance and capillaries of that various organs, and its unevenly distributed. Thus, 125I–EGCG may be radiopharmaceutical for the imaging of the stomach and salivary gland.

Effect of temperature on short chain fatty acids (SCFAs) accumulation and microbiological transformation in sludge alkaline fermentation with Ca(OH)2 adjustment

The effects of temperatures (15–55 °C) on the alkaline fermentation of sewage sludge were investigated in semi-continuous stirred tank reactors (semi – CSTR) at the pH of 10. The highest soluble chemical oxygen demand (SCOD) yield was obtained at 55 °C (764.2 mg/(gVS L d)), while the highest short chain fatty acids (SCFAs) yield was observed at 35 °C (319.8 mg/(gVS L d)), 1.5 times higher than SCFAs yield at 55 °C (209.5 mg/(gVS L d)). The proportion of the intercellular organic substances being transferred to the slime layer of sludge flocs increased from 29% at 15 °C to 54% at 55 °C. But only a small part of soluble organic substances in the slime layers was converted to SCFAs at 55 °C. The dewaterability of sludge was better at 35 °C than that at 55 °C. Microbiological community analysis showed the acid-producing microorganisms at the medium temperatures (25 °C and 35 °C) were more diverse and abundant than those at the low (15 °C) and high temperatures (55 °C). Clodtridium and Bacillus in Firmicutes and Gamma proteobacterium in Proteobacteria were the dominant functional bacterial species for high SCFA accumulation.

General Principles of Electron Microscopy Preparation Protocol

The very small size of tissues, cells and intercellular substances has required the design of microscopes and the development of methods for microscopic examination. Microscopic examination, which dates back to the discovery of bacteria by Leeuwenhoek in 1676, has greatly advanced to date. The resolution of the human eye, optical microscope, scanning electron microscope and transmission electron microscope are 40 microns, 0.2 microns, 100oA and 200oA respectively. To examine tissues, cells and intercellular substances in a life-like state, procedures for fixation, washing, post-fixation, dehydration, embedding, cutting and staining are applied (1, 2).

Protective effects of pioglitazone against immunoglobulin deposition on heart of streptozotocin-induced diabetic rats

Peroxisome proliferator-activated receptor-γ (PPAR-γ) agonists have immunomodulatory and anti-inflammatory effects. The study investigated the autoimmune injuries of diabetic cardiomyopathy (DCM) and tested the hypothesis that PPAR-γ agonists suppress disordered immune responses in diabetic heart, thereby preventing evolution of DCM. STZ-induced diabetic rats were assigned to five groups: DM group, given no treatment; INS group, given insulin (4 U kg(-1) d(-1)); PIL group, given low dose pioglitazone (4 mg kg(-1) d(-1)); PIL/INS group, given both low dose pioglitazone and insulin; PIH group, given high dose pioglitazone (20 mg kg(-1) d(-1)). Normal rats (CON group) were also monitored as control. The pathologic abnormalities of hearts were observed. The immunoglobulin deposition was examined by immunohistochemistry and immunofluorescence. At 16 weeks, interstitial fibrosis was shown in diabetic heart which was accompanied by plenty of inflammatory cells infiltrated. Pioglitazone therapy could ameliorate the cardiac injuries. Shown by immunohistochemistry, the difference of integrated optical density (IOD) of immunoglobulin deposition among each group had statistic significance. No obvious immunoglobulins were deposited in the intercellular substance of heart in CON group (IgA 290.8 ± 88.1, IgG 960.4 ± 316.0 and IgM 341.3 ± 67.9). But the deposition of immunoglobulins increased significantly in DM group (IgA 7,047.5 ± 1,328.3, P < 0.05; IgG 28,945.9 ± 5,160.7, P < 0.05 and IgM 8,580.8 ± 1,336.8, P < 0.05). Administration of pioglitazone greatly reduced the increased deposition in a dose-dependent fashion. Moreover, the statistical significance was the same with immunofluorescence analysis as with immunohistochemical examination. The data suggest that disordered immune responses play an important role in the pathogenesis of DCM. Pioglitazone showed protective effects by inhibiting the immunoglobulin deposition on diabetic myocardium.

Immunobullous disorders: Clinical histopathological and immunofluorescence study of thirty-six cases

Background: Immunobullous disorders are characterized by antibody-mediated bullous lesions affecting the skin and mucosa. Accurate diagnosis of these disorders requires clinicopathological correlation along with immunofluorescence study. Aims and Objectives: To study the clinical, histopathological, and immunopathological features of immunobullous disorders and to analyse the utility of immunofluorescence in the diagnosis of these disorders. Materials and Methods: A total of 36 cases of immunobullous disorders observed over a span of 2 years in our institution were studied. Detailed clinical examination, histopathological examination and immunofluorescence study were done in all cases. Results: Out of 36 cases studied, 18 cases (50%) belonged to pemphigus group, 10 cases (27.78%) were bullous pemphigoid (BP), 5 cases (13.89%) were linear IgA disease (LAD), 2 cases (5.56%) were cicatricial pemphigoid (CP) and 1 case (2.77%) was lichen planus pemphigoides (LPP). Twenty-one patients (58.33%) were in the age group of 21-60 years, 9 patients (25%) were above 60 years and 6 patients (16.67%) were below 20 years. Histopathology of all cases of pemphigus vulgaris (PV) showed suprabasal bulla with acantholytic cells. Pemphigus foliaceus (PF) showed subcorneal bulla in all three cases. Immunofluorescence in all 15 cases of PV showed IgG deposition in intercellular substance (ICS) and C3 deposition in ICS in six cases. PF showed IgG deposition in ICS in all three cases. BP and CP showed deposition of IgG and C3 in a linear band at basement membrane zone (BMZ) in all cases. All cases of LAD showed linear IgA band at BMZ. Conclusion: In three cases (two cases of BP and 1 LAD), immunofluorescence was absolutely essential to come to a final diagnosis, while in two cases of CP immunofluorescence helped in confirming the clinical diagnosis as histopathological finding was nonspecific. In the remaining cases it helped in confirming the diagnosis suggested by clinical examination and light microscopy.

Connective tissue dysplasia in patients with mitral valve prolapse.

Recently displasia of connective tissue is much spoken and written about. As a rule, these are scientific articles and reviews in which difficult terms prevail and doctors don't read them up to the end. And the problem, meanwhile, exists, and problem is very interesting. It is known that connective tissue consists of cells, fibers and intercellular substance. It is well known that it may be dense and loose and is widespread throughout the organism – skin, bones, cartilagle, vessels wall, stroma of bodies and even blood – at the basis of every element is connective tissue. The structure of connective tissue is well studied, and all biochemical structures are identified. Successes of molecular genetics allowed to define types, structure and localization of the genes which are responsible for synthesis of various elements. First of all we are interested in fibers of connective tissue – collagen with main function to maintain form, and the elastin, providing ability to reduction and relaxation. Dysplasia of connective tissue – the process genetically determined, i.e. at the basis of everything is mutations of the genes which are responsible for synthesis of fibers. Mutations may be the most various and in the most different genes. As a result of mutations collagen chains are formed incorrectly. Thus, they are shorter (deletion), or longer (insertion), they join not that amino acid (a dot mutation). So-called abnormal trimers of collagen appear, they don't maintain due mechanical loadings. The same is with elastin. The clinical picture will be defined by quantity and quality of mutations. Unfortunately, not only specific appearance and cosmetic defects belong to manifestations of dysplasia of connective tissue, but also heavy pathological changes of internal organs and the musculoskeletal apparatus.

Segmentation of cell two-photon microscopic image based on center location algorithm

Complex background, critical noise and fuzzy boundary made the performance of the available cell image segmentation methods disappointing. Thus, a new method that can locate and detect nucleus effectively was proposed in this paper. A coarse-to-fine segmentation strategy was adopted to extract the edge of nucleus gradually. First, by using C-means clustering algorithm, the image was divided to three parts: nucleus, cytoplasm and cell intercellular substance. Second, the center of cell was located by calculating the circularity of Canny edge image. Finally, a reformed level set evolution was introduced to extract the edge of nucleus. The experimental results show that, nucleus can be located accurately; even if the cell image has a complex background and is disturbed by much stuff. Moreover, the edge of nucleus extracted by this method has a higher accuracy.

Knee osteoarthrosis: Clinical presentation, diagnosis, treatment

Glucosamine sulfate or hydrochloride and chondroitin sulfate belong to the natural components of cartilage intercellular substance. In osteoarthrosis, they exert a pronounced symptom-modifying effect and, when used long, are also able to suppress the X-ray progression of the disease. Multi-ingredient medications containing glucosamine and chondroitin have benefits over each of them when used alone. These drugs include teraflex. The efficacy of pharmacological agents appears to be associated not so much with the stimulation of cartilage matrix synthesis as with their anti-inflammatory properties.

Effect of poly adenosine diphasphate-ribose polymerase inhibitor on renal injury in rats with severe acute pancreatitis

Objective To investigate the effects and mechanisms of poly adenosine diphosphate (ADP)-ribose polymerase inhibitor 3-aminobenzamide (3-AB) on kidney injury in rates with severe acute pancreatitis (SAP).Methods Fifty-six male Wistar rats were divided into the sham operation (SO) group,SAP (3,6,12 hours) groups,and 3-AB + SAP (3,6,12 hours) groups,and there were 8 rats in each group.SAP model was established by retrograde injection of 5％ sodium taurocholate into the biliopancreatic duct.Rats in the 3-AB + SAP group were infused with 3-AB (20 μg/g) via femoral vein 30 minutes before SAP model establishment.The serum amylase,kidney function and renal myeloperoxidase (MPO) were determined,and pathological scores of pancreatic and renal tissues were evaluated under light microscope.Renal poly ADP-ribose formation,intercellular adhesion molecules-1 (ICAM-1) and P-selectin expression were detected by the Western blot.All data were analyzed using the analysis of variance or t test.Renal injury grading was analyzed using the Kruskal-Wallis nonparametric test.Results The levels of serum amylase of SAP 3,6,12 groups were (3806 ± 229)U/L,(4898 ± 295) U/L and (5726 ± 372) U/L,which were significantly higher than (2785 ± 160) U/L,(3241 ± 198) U/L and (3953 ± 249) U/L of the 3-AB + SAP groups (t =3.652,4.672,4.407,P ＜ 0.05).The levels of blood urea nitrogen were (11.6 ± 0.8) mmol/L,(19.3 ± 1.3) mmol/L and (29.6 ± 2.1) mmol/L,which were higher than (7.5 ± 0.5) mmol/L,(10.5 ± 0.7) mmol/L and (21.6 ± 1.5) mmol/L of the 3-AB + SAP groups.There were significant differences in the levels of blood urea nitrogen between the SAP group and the 3-AB + SAP group at the 6 and 12 hours (t =3.836,6.849,P ＜0.05).The levels of creatinine of the SAP 3,6,12 hours groups were (48.7 ±3.1) μmol/L,(58.3 ±3.7) μmol/L and (75.9 ±5.4) μmol/L,which were higher than (40.7 ±2.6)μmol/L,(43.2 ± 2.6) μmol/L and (53.4 ± 3.2) μmol/L of the 3-AB + SAP groups.There were significant differences in the levels of creatinine between the SAP group and the 3-AB + SAP group at the 6 and 12 hours (t =3.279,3.073,P ＜ 0.05).The renal MPO activity of the SAP 3,6,12 hours groups were (0.69 ± 0.06) U/g,(1.07 ± 0.09)U/g and (1.42 ±0.13)U/g,which were higher than (0.57 ±0.05)U/g,(0.75 ±0.06)U/g and (0.89 ± 0.07) U/g of the 3-AB + SAP groups.There were significant differences in the renal MPO activity between the SAP group and the 3-AB + SAP group at the 6 and 12 hours (t =3.066,4.012,P ＜ 0.05).The pancreatic pathological scores of the SAP 3,6 and 12 hours group were 6.50 ± 0.53,9.06 ± 0.66 and 11.75 ± 0.89,which were significantly higher than 4.25 ± 0.31,6.06 ± 0.51 and 7.57 ± 0.59 of the 3-AB + SAP group (t =3.631,3.598,5.147,P ＜ 0.05).The structure of the kidney was normal in the SO group.Congestive changes were observed in glomerulus of kidney,the renal tubular epithelial cell was necrosed,and luminal narrowing or occlusion,hemorrhage in the intercellular substance and inflammatory cell infiltration were observed in the SAP 12 hours group.The pathological changes of the 3-AB + SAP 12 hours group were significantly slighter (P ＜ 0.05).The relative expressions of poly ADP-ribose,ICAM-1 and P-selectin of the SO group were 1.00 ±0.21,1.00 ±0.18,1.00 ± 0.16,which were significantly lower than 3.83 ± 0.63,5.42 ± 0.83,3.71 ± 0.48 of the SAP 12 hours group (t =6.955,23.107,10.352,P ＜ 0.05).The relative expressions of poly-ADP-ribose,ICAM-1 and P-selectin of the 3-AB + SAP 12 hours group were 1.94 ± 0.36,2.35 ± 0.35,2.11 ± 0.29,which were significantly lower than SAP 12 hours group (t =3.977,12.115,5.012,P ＜ 0.05).Conclusions Poly ADP-ribose polymerase inhibitor 3-AB protects kidney from injury in the experimental SAP rats.Poly ADP-ribose polymerase inhibitor 3-AB functions by suppressing the ICAM-1 and P-selectin expression and reducing neutrophil infiltration. Key words: Pancreatitis, severe acute; Renal injury; Poly adenosine diphasphate-ribose polymerase; 3-aminobenzamide; Myeloperoxidase

EMBRIOLOGY OF DERMOID CYSTS WITH NEURO-ECTODERMAL CONTENT

SUMMARY: Each of the tissues that form the human body is made up of cells and intercellular substance. Tissues do not exist in isolation, but through each other metabolic relations build organs and systems of the body during ontogeny. During embryonic development tissues take certain place but sometimes they can be combined in different proportions and in different parts of the body. Thus, the mix of tissue formed as such derived from different embryonic structures serve to store a dermoid cysts [1, 2, 3, 4].