scholarly journals Some Remarks on Essentially Normal Submodules

2013 ◽  
pp. 159-170 ◽  
Author(s):  
Ronald G. Douglas ◽  
Kai Wang
Keyword(s):  
Essentially Normal

EFFECT OF FEEDING ETHINYLOESTRADIOL FOR VARIOUS PERIODS BEFORE MATING ON REPRODUCTION IN THE HAMSTER

1972 ◽  
Vol 70 (3) ◽  
pp. 582-590
Author(s):  
B. K. Davis ◽  
I. Noske ◽  
M. C. Chang
Keyword(s):  
Single Dose ◽  
Pregnancy Rate ◽  
Fertility Control ◽  
Normal Pregnancy ◽  
Oestrous Cycle ◽  
The Other ◽  
Feeding Schedule ◽  
Crown Rump Length ◽  
Essentially Normal ◽  
Effect Of Feeding

ABSTRACT Ethinyloestradiol (EO) fed for various periods before mating to female hamsters affected the timing of mating and pregnancy rate. Slight effects on ovulation, foetal-crown rump length and resorption may have occurred, but effects on implantation were not apparent among pregnant hamsters. The response observed depended upon the feeding schedule adopted: hamsters fed 2.5 mg EO in a single dose, on day 3 before mating, mated normally but had a significantly lower pregnancy rate; on the other hand, animals fed 2.5 mg EO (0.21 mg/day) over three oestrous cycles, days 14–3 before mating, showed variations in the time of mating but had an essentially normal pregnancy rate; and, a group of hamsters who received the same total amount of EO (0.63 mg/day) over one oestrous cycle, days 6–3 premating, showed untowards effects by the steroid on both the timing of mating and pregnancy rate. The implications of these results are considered in relation to fertility control.

scholarly journals Benign Focal Epilepsy of Childhood and Gastroesophagael Reflux

1994 ◽  
Vol 8 (1) ◽  
pp. 45-48
Author(s):  
Anne G Sheehan ◽  
Sherry Pelensky ◽  
Colin Van Orman ◽  
Steven R Martin
Keyword(s):  
Gastroesophageal Reflux ◽  
Sudden Infant Death Syndrome ◽  
Infant Death ◽  
Chronic Cough ◽  
Focal Epilepsy ◽  
Sudden Infant Death ◽  
Acute Onset ◽  
Sudden Infant ◽  
Recurrent Pneumonia ◽  
Essentially Normal

Gastroesophageal reflux has been associated with, and implicated in, a number of conditions, including respiratory disease (recurrent pneumonia, chronic cough, asthma), sudden infant death syndrome, dysphagia and central nervous disorders. An eight-year-old girl presented with an acute history that suggested gastroesophageal reflux. An esophageal motility study was abnormal and 24 h pH study demonstrated gastroesophageal reflux. Before the manometric study, a seizure was observed and subsequent neurological evaluation confirmed the diagnosis of benign focal epilepsy of childhood, which was treated with carbamazepine. The symptoms resolved after eight weeks and the repeat reflux investigations were essentially normal. Oropharyngeal symptoms are common in benign focal epilepsy of childhood, a condition which is very responsive to therapy. Symptoms suggestive of this diagnosis - acute onset, with unusual oropharyngeal sensations, or seizures-occurring mainly at night may initially be confused with gastroesophageal reflux. Benign focal epilepsy of childhood should be considered in reflux presenting outside infancy.

Hyper-eosinophilic syndrome: An uncommon cause of chronic abdominal pain in an elderly male

2021 ◽  
pp. 004947552098776
Author(s):  
Dibya L Praharaj ◽  
Bipadabhanjan Mallick ◽  
Preetam Nath ◽  
Sarat C Panigrahi ◽  
Anil C Anand ◽  
...  
Keyword(s):  
Abdominal Pain ◽  
Wide Spectrum ◽  
Hypereosinophilic Syndrome ◽  
Connective Tissue Disorder ◽  
Sleep Apnoea ◽  
Chronic Abdominal Pain ◽  
Elderly Male ◽  
Essentially Normal ◽  
Organ Systems ◽  
Obstructive Sleep

Hypereosinophilia is defined as an absolute eosinophil count of ≥1.5 × 109/L, and its presence with involvement of at least one organ system defines the hypereosinophilic syndrome. It may occur with parasitic infestation, connective tissue disorder or rarely in clonal disorders such as eosinophilic leucaemia. Organ systems that may be involved include the cardiovascular, central nervous, respiratory and gastrointestinal systems. In the latter, a wide spectrum of clinical presentation may be seen from trivial, to debilitating or rarely fatal. We report an elderly male with a history of bronchial asthma, obstructive sleep apnoea and food allergy who presented with chronic abdominal pain and weight loss. Abdominal examination and routine evaluation were essentially normal other than a peripheral hyper-eosinophilia. We witnessed a brisk and lasting response to an elimination diet and corticosteroids.

Evaluation of Congenital Neutropenic Disorders by in Vitro Bone Marrow Culture

PEDIATRICS ◽  
1977 ◽  
Vol 59 (5) ◽  
pp. 739-748
Author(s):  
Peter M. Falk ◽  
Kenneth Rich ◽  
Stephen Feig ◽  
E. Richard Stiehm ◽  
David W. Golde ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Stem Cell ◽  
Severe Disease ◽  
Stem Cell Differentiation ◽  
Peripheral Blood Cell ◽  
Clinical Expression ◽  
Essentially Normal ◽  
Cell Counts

The congenital neutropenias are a heterogeneous group of diseases whose etiology and pathogenesis are largely unknown. We studied nine neutropenic patients from seven families. Evaluation included peripheral blood cell and differential cell counts, epinephrine and typhoid vaccine stimulation studies, Rebuck skin windows, and bone marrow aspirations for morphological assessment and for in vitro culture in liquid suspension and in agar plates. Parallel cultures were set up with and without colony-stimulating activity (CSA), and peripheral leukocytes were assayed for cellular production of CSA. Patients were initially classified on the basis of their clinical course: benign, mild, moderately severe, or severe disease. One patient in the moderately severe group had an immunoglobulin disorder. Morphologically normal mature granulocytes were seen in bone marrow aspirates of two patients, and maturational defects of varying degree were seen in the remaining seven. Colony formation in agar was markedly reduced below normal in three of seven, moderately reduced in two of seven, and greater than normal in two patients. Colonies in six of seven patients consisted exclusively of macrophages. Marrow from all but one of the nine patients demonstrated poor neutrophil development in suspension culture, and addition of CSA did not result in augmented granulocytic proliferation or maturation. A scheme of normal neutrophil maturation is proposed, and the nine patients were categorized according to this scheme. Four patterns of congenital neutropenia emerged: type 1 was the most benign form of disease with essentially normal clinical and in vitro parameters, and a defect considered to be due to a small committed stem cell pool, abnormal release, or excessive utilization peripherally; type 2 had mild disease with presumed defective committed stem cell differentiation along the granulocyte line; type 3 included benign to severe clinical expression with an apparent defect at the level of the committed granulocyte precursor more severe than in type 2; type 4 disease had varied clinical expression but evidence for a defect at the level of the pluripotent stem cell.

her1, a zebrafish pair-rule like gene, acts downstream of notch signalling to control somite development

Development ◽  
1999 ◽  
Vol 126 (13) ◽  
pp. 3005-3014 ◽  
Author(s):  
C. Takke ◽  
J.A. Campos-Ortega
Keyword(s):  
Active Form ◽  
Notch Signalling ◽  
Paraxial Mesoderm ◽  
Presomitic Mesoderm ◽  
Essentially Normal ◽  
Early Embryos ◽  
Somite Formation ◽  
Genes Encoding ◽  
Ectopic Activation ◽  
Pair Rule

During vertebrate embryonic development, the paraxial mesoderm becomes subdivided into metameric units known as somites. In the zebrafish embryo, genes encoding homologues of the proteins of the Drosophila Notch signalling pathway are expressed in the presomitic mesoderm and expression is maintained in a segmental pattern during somitogenesis. This expression pattern suggests a role for these genes during somite development. We misexpressed various zebrafish genes of this group by injecting mRNA into early embryos. RNA encoding a constitutively active form of notch1a (notch1a-intra) and a truncated variant of deltaD [deltaD(Pst)], as well as transcripts of deltaC and deltaD, the hairy-E(spl) homologues her1 and her4, and groucho2 were tested for their effects on somite formation, myogenesis and on the pattern of transcription of putative downstream genes. In embryos injected with any of these RNAs, with the exception of groucho2 RNA, the paraxial mesoderm differentiated normally into somitic tissue, but failed to segment correctly. Activation of notch results in ectopic activation of her1 and her4. This misregulation of the expression of her genes might be causally related to the observed mesodermal defects, as her1 and her4 mRNA injections led to effects similar to those seen with notch1a-intra. deltaC and deltaD seem to function after subdivision of the presomitic mesoderm, since the her gene transcription pattern in the presomitic mesoderm remains essentially normal after misexpression of delta genes. Whereas notch signalling alone apparently does not affect myogenesis, zebrafish groucho2 is involved in differentiation of mesodermal derivatives.

Toxicity Profile of Chemotherapeutic Agents among Cancer Patients Receiving Care in a Nigerian Tertiary Health Care Facility.

2020 ◽  
Vol 1 (5) ◽  
pp. 53-64
Author(s):  
A.A. Biambo ◽  
◽  
U.M. Aliyu ◽  
M.O. Adibe ◽  
A. Samaila ◽  
...  
Keyword(s):  
Cancer Patients ◽  
Liver Enzymes ◽  
Care Facility ◽  
Chemotherapeutic Agents ◽  
T Test ◽  
University Teaching ◽  
Full Blood Count ◽  
Percentage Increase ◽  
Toxicity Profile ◽  
Essentially Normal

Background: Chemotherapeutic agents are among the mainstay of managing cancer patients. However, they are associated with various degrees of toxicity. Objectives: To evaluate the toxicity profile of chemotherapeutic agents among cancer patients receiving care in Usmanu Danfodiyo University Teaching Hospital, Sokoto, Nigeria. Method: Retrospective cross-sectional design and systematic random sampling were used in selecting the records of patients that met the eligibility criteria for the study. Five-year records (2014–2018) of Full Blood Count (FBC), Serum Electrolyte Urea and Creatinine (SrEUCr) and Liver Function Test (LFT) were evaluated for changes from baseline to the end of chemotherapy. The data were compared with standards and analysed using descriptive, t-test and correlation analyses at p<0.05. Results: The mean age of the 260 patients evaluated was 47.1±16.3 years. T-test analysis showed that the percentage changes in the patients’ parameters under FBC and SrEUCr tests were normal while the ones under LFT were abnormal. Patients on platinum-based combinations especially Cisplatin+Fluorouracil+Paclitaxel (87.5±87.4%) and Carboplatin+Paclitaxel (68.4±114.5%) had the highest percentage increase in their overall LFT results while those on Doxorubicin+Cyclophosphamide+Vincristine (4.8±18.7%) and Doxorubicin+ Cyclophosphamide+ Paclitaxel (12.3±27.9%) had the least. The number of chemotherapy cycles was weakly correlated with Hepatotoxicity (r=0.165, p=0.046). Conclusion: The patients had essentially normal FBC and SrEUCr results, however, LFT was abnormal due to the elevation of liver enzymes. Platinum-based combinations especially Cisplatin + Fluorouracil + Paclitaxel and Carboplatin + Paclitaxel had the highest elevation in liver enzymes while Doxorubicin+Cyclophosphamide+Vincristine and Doxorubicin+Cyclophosphamide+Paclitaxel had the least. These findings should be considered by clinicians in managing cancer patients to minimise their medication-related toxicities.

Invited Review: Possible Mechanisms Involved in the Immunoregulation of Chronic Inflammatory Periodontal Disease

1987 ◽  
Vol 66 (1) ◽  
pp. 2-9 ◽  
Author(s):  
G.J. Seymour
Keyword(s):  
Periodontal Disease ◽  
Animal Studies ◽  
Cellular Level ◽  
Future Research ◽  
Complex Interactions ◽  
Essentially Normal ◽  
Experimental Gingivitis ◽  
Immunological Mechanisms ◽  
Scant Attention ◽  
Macrophage Subpopulations

It is generally agreed that immunological mechanisms are involved in the pathogenesis of periodontal disease; however, regulation of these mechanisms has hitherto received scant attention. Regulatory net works exist at both a cellular and a molecular level. At the cellular level, the existence of helper (T4-positive) and suppressor (T8-positive) T lymphocytes, the expression of Class II major histocompatibility complex antigens, and the heterogeneity of macrophage subpopulations are central to an understanding of the regulatory mechanisms involved. It is only recently that studies of these separate components, in both humans and experimental animals, have begun to provide a basis for understanding the complex interactions occurring in periodontal disease. Studies using the human experimental gingivitis model have shown an immunoregulatory picture consistent with a controlled immunological reaction with an essentially normal T4:T8 ratio of 2.0. In con trast, studies utilizing cells extracted from adult periodontitis lesions have shown a reduced T4:T8 ratio (approximately 1.0) and an inability to respond in, or to stimulate, an autologous mixed lymphocyte reaction. Animal studies using athymic nude rats have supported the concept of a central role for T-cell control in periodontal disease and the possibility of an imbalance in this control with disease progression. These results are reviewed and areas of future research explored.

scholarly journals The actin cytoskeleton and integrin expression in the recovery of cell adhesion after oxidant stress to a proximal tubule cell line (JTC-12).

1998 ◽  
Vol 9 (10) ◽  
pp. 1787-1797
Author(s):  
S Nigam ◽  
C E Weston ◽  
C H Liu ◽  
E E Simon
Keyword(s):  
Cell Adhesion ◽  
Actin Cytoskeleton ◽  
Proximal Tubule ◽  
Cell Line ◽  
Oxidant Stress ◽  
Proximal Tubule Cell ◽  
Integrin Expression ◽  
Tubule Cell ◽  
Essentially Normal ◽  
Atp Levels

This study examines the role of the actin cytoskeleton and integrin expression in the recovery of cell adhesion in the proximal tubule cell line JTC-12 after peroxide injury. The cells were exposed to 10, 20, or 50 mM hydrogen peroxide for 10 min and then allowed to recover. Viability measurements by trypan blue exclusion confirmed that the injury was largely nonlethal with 85% viability at 1 h even at 50 mM peroxide. ATP levels fell immediately after the peroxide incubation in all groups to approximately 10% of normal, but already showed some recovery by 1 h and full recovery in the 10 and 20 mM groups by 24 h. Cell adhesion to extracellular matrix immediately after injury was depressed at 20 and 50 mM peroxide, but by 12 h was abnormal only at 50 mM peroxide and at 24 h was essentially normal at all peroxide concentrations. Immediately after exposure to 10 mM peroxide, there were subtle abnormalities in the actin cytoskeleton (thickening of fibrils) as assessed by phalloidin staining, with more pronounced effects at 20 and 50 mM. At 1 h, many cells showed collapse of the actin cytoskeleton to the periphery. There was some recovery at 4 h; by 12 h, the actin cytoskeleton showed further recovery, although was still abnormal (coarsened microfilaments), especially at 20 and 50 mM peroxide. By 24 h, the actin cytoskeleton showed only subtle coarsening. Integrin surface expression was assessed by flow cytometry. The alpha6 subunit on cells exposed to 20 mM peroxide was unchanged at 1 h and 4 h, but by 12 h had increased to 118.5+/-4.5% and by 24 h to 146+/-13.4% of control levels. The expression of the beta1 and alphaVbeta3 integrins remained unchanged. Thus, despite coarsening of the actin cytoskeleton and depressed ATP levels, cell adhesion recovered from oxidant stress. Abnormal cell adhesion after injury was not a consequence of a decrease in integrin expression, and recovery of cell adhesion was not a consequence of the modest and selective increase in integrin expression.

Acoustic Characteristics of Dysarthria Associated with Cerebellar Disease

1979 ◽  
Vol 22 (3) ◽  
pp. 627-648 ◽  
Author(s):  
Ray D. Kent ◽  
Ronald Netsell ◽  
James H. Abbs
Keyword(s):  
Normal Subjects ◽  
Cerebellar Disease ◽  
Acoustic Characteristics ◽  
Essentially Normal ◽  
Vowel Formant ◽  
Timing Pattern ◽  
Ataxic Dysarthria ◽  
Acoustic Analyses ◽  
Simple Sentences ◽  
Number Of Segments

The speech of five individuals with cerebellar disease and ataxic dysarthria was studied with acoustic analyses of CVC words, words of varying syllabic structure (stem, stem plus suffix, stem plus two suffixes), simple sentences, the Rainbow Passage, and conversation. The most consistent and marked abnormalities observed in spectrograms were alterations of the normal timing pattern, with prolongation of a variety of segments and a tendency toward equalized syllable durations. Vowel formant structure in the CVC words was judged to be essentially normal except for transitional segments. The greater the severity of the dysarthria, the greater the number of segments lengthened and the degree of lengthening of individual segments. The ataxic subjects were inconsistent in durational adjustments of the stem syllable as the number of syllables in a word was varied and generally made smaller reductions than normal subjects as suffixes were added. Disturbances of syllable timing frequently were accompanied by abnormal contours of fundamental frequency, particularly monotone and syllable-falling patterns. These dysprosodic aspects of ataxic dysarthria are discussed in relation to cerebellar function in motor control.

scholarly journals Genome size variation in the North American sunfish genus Lepomis (Pisces: Centrarchidae)

1989 ◽  
Vol 53 (3) ◽  
pp. 173-182 ◽  
Author(s):  
Chara J. Ragland ◽  
John R. Gold
Keyword(s):  
Genome Size ◽  
North American ◽  
Size Variation ◽  
Hierarchical Level ◽  
Size Difference ◽  
Similar Data ◽  
Genome Size Variation ◽  
The North ◽  
Essentially Normal ◽  
Genome Size Evolution

SummaryGenome sizes (nuclear DNA contents) were documented spectrophotometrically from individuals of each of nine species of the North American centrarchid (sunfish) genus Lepomis. The distributions of DNA values within and among the nine species were essentially normal and continuous, suggesting that changes in DNA quantity in Lepomis are small in amount, involve both gains and losses of DNA, and are cumulative and independent in effect. Significant differences in mean genome size were found between individuals within populations in all nine species and between species. Nested analysis of variance and comparisons of average genome size difference or distance between individuals drawn from different levels of taxonomic organization revealed that the majority of genome size divergence in Lepomis occurs above the hierarchical level of individuals within populations. The Lepomis data when compared to similar data from North American cyprinid fishes appear to suggest that: (i) genome size evolution in these fishes at least follows a continuous rather than a discontinuous mode; (ii) the general predictions of hypothetical models relating genome size variation as a function of organismal position along adaptive continua may be oversimplified, or not applicable to complex, higher eukaryotes; and (iii) changes in genome size in these fishes may be concentrated in speciation episodes.

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