scholarly journals The gonad growth of Anguilla bicolor bicolor induced by hormone combination of HCG, MT, E2, and antidopamine

2015 ◽  
Vol 14 (1) ◽  
pp. 69
Author(s):  
Abdul Zahri ◽  
Agus Oman Sudrajat ◽  
Muhammad Zairin Junior
Keyword(s):  
Blood Serum ◽  
Immunosorbent Assay ◽  
Chorionic Gonadotropin ◽  
Human Chorionic Gonadotropin ◽  
Gonadosomatic Index ◽  
Enzyme Linked Immunosorbent Assay ◽  
Hepatosomatic Index ◽  
Nacl Solution ◽  
Gonad Growth ◽  
Estradiol Concentration

<p class="NoParagraphStyle" align="center"><strong>ABSTRACT</strong></p><p class="NoParagraphStyle" align="center"><strong> </strong></p><p class="NoParagraphStyle">The aim of the study was to stimulate eel gonad growth by intramuscularly injection with a hormonal combination of human chorionic gonadotropin (hCG), methyltestosterone (T), estradiol (E<sub>2</sub>) and antidopamine (A) meanwhile 0.9% NaCl solution was used as control. Estradiol concentration in the blood serum were measured by enzyme-linked immunosorbent assay (ELISA). Stimulation with hCG 20 IU/kg in combination with MT 3 mg/kg and 10 μg/kg antidopamine (hTA treatment) very effective for increased the growth of gonads with indicators gonadosomatic index (GSI) of 4.80%, hepatosomatic index 1.01% and concentration of E<sub>2</sub> 2.49±0.67 ng/mL were significantly different (P&lt;0.05) than others treatment after ten weeks of application.</p><p class="NoParagraphStyle"> </p><p class="NoParagraphStyle">Key words: hormone, gonad growth, maturation, Indonesian short finned eel</p><p class="NoParagraphStyle"> </p><p class="NoParagraphStyle"> </p><p class="NoParagraphStyle" align="center"><strong>ABSTRAK</strong></p><p class="NoParagraphStyle"> </p><p class="NoParagraphStyle">Penelitian ini bertujuan untuk mengetahui pertumbuhan gonad yang distimulasi oleh kombinasi <em>human chorionic gonadotropin</em> (hCG), metiltestosteron (MT), estradiol (E<sub>2</sub>) dan antidopamin (A). Ikan sidat disuntik dengan hormon dan 0,9% NaCl sebagai kontrol secara intramuskular. Pengukuran konsentrasi hormon E<sub>2</sub> dalam serum darah dengan <em>enzyme-linked immunosorbent assay </em>(ELISA). Stimulasi dengan hCG 20 IU/kg dikombinasi dengan MT 3 mg/kg dan antidopamin 10 μg/kg (perlakuan hTA) sangat efektif untuk feminisasi dan meningkatkan pertumbuhan gonad dengan indikator indeks gonadosomatik (GSI) 4,80%, indeks hepatosomatik 1,01% dan konsentrasi E<sub>2 </sub>2,49±0,67 ng/mL, secara signifikan berbeda pada taraf P&lt;0,05 dibandingkan perlakuan lain setelah sepuluh minggu aplikasi.</p><p class="NoParagraphStyle"> </p><p>Kata kunci: hormon, pertumbuhan gonad, maturasi, sidat</p>

scholarly journals Development of the ELISA Test System for Quantitative Determination of IgG to the Varizella zoster virus in Human Serum and Assessment of its Diagnostic Efficiency

2022 ◽  
Vol 20 (6) ◽  
pp. 72-80
Author(s):  
L. N. Lukhverchyk ◽  
G. L. Alatortseva ◽  
L. N. Nesterenko ◽  
V. Y. Kabargina ◽  
V. V. Dotsenko ◽  
...  
Keyword(s):  
Herpes Zoster ◽  
Blood Serum ◽  
Human Serum ◽  
Immunosorbent Assay ◽  
Test System ◽  
Enzyme Linked Immunosorbent Assay ◽  
Diagnostic Efficiency ◽  
Functional Characteristics ◽  
Serum Samples ◽  
Population Immunity

Relevance. The introduction of Varicella vaccine prophylaxis explains the need to develop a methodology for monitoring the vaccination effectiveness and the intensity of population immunity. This problem can be solved using quantitative immunoassay methods. Aim. Development of an enzyme-linked immunosorbent assay for the concentration of class G immunoglobulins (AB) to Varicella zoster virus (VZV) determining and assessing its functional characteristics and diagnostic efficiency. Materials and methods. Recombinant antigen GE VZV. WHO International Standard for Antibodies to VZV W1044. Blood serum samples from healthy people and patients with Chickenpox and Herpes zoster, blood serum samples containing IgG antibodies to herpes simplex viruses of the first and second types, cytomegalovirus, Epstein-Barr virus. Anti-VZV ELISA (IgG) reagent kit (Euroimmun, Germany). Indirect enzyme-linked immunosorbent assay. Immunization of animals with recombinant antigen GE, isolation, and purification of specific antibodies. Conjugation of monoclonal antibodies to human IgG with antibodies to antigen GE and with horseradish peroxidase. Results. An enzyme-linked immunosorbent assay in «an indirect» format has been developed to determine the specific antibodies to VZV concentration (IU/ml) in human serum/plasma. An artificial calibrator for determining the concentration of AB-VZV had been synthesized and standardized according to the International WHO-standard W1044. The main functional characteristics of the developed enzyme-linked immunosorbent assay are determined in accordance with GOST 51352-2013. The diagnostic kit was tested on blood serum samples from children with chickenpox (n = 43), adults with Herpes zoster (n = 158), healthy individuals (n = 781). The diagnostic sensitivity of the test system was 85%, the diagnostic specificity was 87% according to the ROC analysis. The absence of cross-reactivity of the test system was shown on samples with serological markers of other herpesvirus infections (n = 94). Comparative trials of the developed test system and its commercial analog, the Anti-VZV ELISA (IgG) reagent kit, did not reveal statistically significant differences between their functional characteristics. Conclusions. The developed test system for determining of the AB-VZV concentration in human serum/plasma in terms of its functional characteristics meets the GOST requirements, is characterized by high diagnostic efficiency, can be used to monitor the effectiveness of vaccine prophylaxis and strength of population immunity, as well as to assess the immune response in chickenpox and Herpes zoster.

scholarly journals HUBUNGAN ANTARA INTENSITAS ESTRUS DENGAN KONSENTRASI ESTRADIOL PADA SAPI ACEH PADA SAAT INSEMINASI (Relation between Estrous Intensity and Estradiol Concentration on Local Cattle during Insemination)

2016 ◽  
Vol 10 (1) ◽  
pp. 27
Author(s):  
Mauridatun Ramli ◽  
Tongku Nizwan Siregar ◽  
Cut Nila Thasmi ◽  
Dasrul Dasrul ◽  
Sri Wahyuni ◽  
...  
Keyword(s):  
Immunosorbent Assay ◽  
Jugular Vein ◽  
Enzyme Linked Immunosorbent Assay ◽  
Plasma Samples ◽  
Hormone Concentration ◽  
Prostaglandin F2 Alpha ◽  
Commercial Kits ◽  
The Relationship ◽  
Estradiol Concentration

This study aims to determine the relationship between the intensity of estrus and estradiol concentrations during insemination on local cattle. Ten cows were divided into two groups with each group consist of five cows with category: aged 5-8 years, weight 150-250 kg, clinically healthy, and not pregnant. Plasma samples for examination of the hormone estradiol concentrations were collected during insemination time from jugular vein. Prior to the collection of plasma samples, whole cow were estrus synchronized using prostaglandin F2 alpha (PGF2α) and Ovsynch protocol. The PGF2α were injected twice at intervals of 11 days. Examination of estradiol hormone concentration was performed with enzyme-linked immunosorbent assay (ELISA) using estradiol commercial kits. The results of this study indicate that statistically there is no relationship between estrous intensity and estradiol concentration.

Relaxin triggers calcium transients in human granulosa-lutein cells

1995 ◽  
Vol 132 (4) ◽  
pp. 507-513 ◽  
Author(s):  
Artur Mayerhofer ◽  
Reiner Engling ◽  
Brigitte Stecher ◽  
Axel Ecker ◽  
Karl Sterzik ◽  
...  
Keyword(s):  
Chorionic Gonadotropin ◽  
Human Chorionic Gonadotropin ◽  
Peptide Hormone ◽  
Calcium Transients ◽  
Enzyme Linked Immunosorbent Assay ◽  
Stimulatory Action ◽  
Luteal Function ◽  
Local Factor ◽  
Intracellular Ca

Mayerhofer A, Engling R, Stecher B, Ecker A, Sterzik K, Gratzl M. Relaxin triggers calcium transients in human granulosa-lutein cells. Eur J Endocrinol 1995;132:507–13. ISSN 0804–4643 Although the peptide hormone relaxin is synthesized by the human corpus luteum in vivo, its potential to serve as a local factor in the regulation of luteal function is not clear. Using an enzyme-linked immunosorbent assay for human relaxin, we detected relaxin in the culture medium of human granulosa-lutein cells as early as after 6 days in culture. Moreover, 1 × 105 IU/l human chorionic gonadotropin stimulated relaxin release about fourfold during a 48-h incubation on culture days 6–8 (and 7–9), but not earlier (on days 1, 3 and 4). The stimulatory action of human chorionic gonadotropin on progesterone release was not influenced by relaxin, and relaxin alone was without stimulatory effect. However, human recombinant relaxin (between 0.1 and 12.5 μg/l) increased intracellular free Ca2+ basal levels to maximal peak levels exceeding 1000 nmol/l in about 64% of all tested cells (N = 168) with no obvious dependency on the culture day. The relaxin-induced Ca2+ signal was not affected by removal of extracellular Ca2+. As depletion of intracellular Ca2+ stores by ionomycin rendered the cells unresponsive to relaxin or diminished their ability to respond, these results point to an intracellular source of the Ca2+ signal. In summary, our data indicate the presence of a functional relaxin receptor on human granulosa-lutein cells, which is linked to Ca2+ release from intracellular stores. Manfred Gratzl, Anatomisches Institut der Technischen Universität München, Biedersteiner Strasse 29, D-80802 Munich, Germany

scholarly journals Nonspecific protective factors in patients with early latent syphilis (report 1)

2021 ◽  
Vol 26 (4) ◽  
pp. 138-143
Author(s):  
S.V. Zakharov  ◽  
V.K. Zakharov
Keyword(s):  
Protective Factors ◽  
Blood Serum ◽  
Immunosorbent Assay ◽  
Immune Complexes ◽  
Circulating Immune Complexes ◽  
Phagocytic Index ◽  
Enzyme Linked Immunosorbent Assay ◽  
Hla Dr ◽  
Latent Syphilis

The objective of this work is to study nonspecific protective factors in patients with latent early syphilis. The results of the study are based on the data of a comprehensive examination before treatment of 142 patients with early latent syphilis and 20 patients of the comparison group. Methods of investigation: serological methods for the diagnosis of syphilis complex of serological reactions, enzyme-linked immunosorbent assay (IgM, IgG), Indirect immunofluorescence reaction (RIF) RIF-200, RIF-abs; determination of cytokines IL-2, IL-6, IL-10, TNFα and INFγ in blood serum by enzyme-linked immunosorbent assay; determination of the phenotype of lymphocytes (CD-receptors), the concentration of circulating immune complexes, phagocytic number, phagocytic index, Nitroblue tetrazolium test. In the blood serum of patients the concentration of IL-2, IL-6, IL-10 and TNFα, INFγ was significantly increased. The concentration of IL-10 and IL-6 was also significantly increased in patients with more than 1 year of infection. The most significant disorders of the parameters of the metabolic activity of neutrophils were found in patients with an infection of more than 1 year; an imbalance in the circulating immune complexes concentration was also established. Under the increasing duration of the infection, the concentration of CD16+ in the blood serum progressively decreases. The content of pro-inflammatory and anti-inflammatory cytokines in the blood serum of patients with early latent syphilis was significantly increased and depended on the timing of infection. This relationship was most pronounced for IL-6 and IL-10. In patients with early latent syphilis there is also an imbalance between CD25+ and late activation factor HLA-DR against the background of a progressive decrease in the number of CD16+ lymphocytes. A direct relationship was established between the time of infection and the number of NK-cells. The revealed disorders may be the consequence of significant disorders on the part of neutrophils and may be one of the factors of the latent course of syphilitic infection.

scholarly journals Comparative examination of the serological response to bluetongue virus in diseased ruminants by competitive and double recognition enzime-linked immunosorbent assays

2018 ◽  
Vol 69 (3) ◽  
pp. 1088
Author(s):  
A. GAVRILOVIĆ ◽  
P. GAVRILOVIĆ ◽  
S. RADOJIČIĆ ◽  
D. KRNJAIĆ
Keyword(s):  
Blood Serum ◽  
Immunosorbent Assay ◽  
Clinical Signs ◽  
High Sensitivity ◽  
Enzyme Linked Immunosorbent Assay ◽  
Serological Response ◽  
Rapid Diagnostics ◽  
Serum Samples ◽  
Perfect Agreement ◽  
First Time

Bluetongue (BT) is a viral non-contagious disease of ruminants which is transmitted by insects of the genus Culicoides. In recent years, BT has been a serious threat to livestock and to the economies of European countries. In Serbia the disease appeared for the first time in 2001, and after a 12 year period of freedom, it broke out again in 2014. Considering the actuality of this infectious disease, especially the need for prompt and rapid diagnostics, the aim of this paper was to determine the possibility of detecting the serological response in sheep and cattle with manifested clinical signs of the disease using two different methods: double recognition enzyme-linked immunosorbent assay (sELISA) and competitive enzyme-linked immunosorbent assay (cELISA). A total of 105 blood serum samples of cattle and sheep, which had exhibited clinical signs of BT during 2014, were taken for examination from a serum bank. Out of 74 blood serum samples of sheep and 31 blood serum samples of cattle, 52 samples of sheep and 18 samples of cattle tested positive using sELISA, while 50 samples of sheep and 18 samples of cattle gave positive reactions with cELISA. The results confirm the high sensitivity of sELISA which detected 4% more seropositive sheep in comparison with cELISA. Using Cohen’s kappa statistical analysis, almost perfect agreement was determined between the results (k>0,81) obtained by cELISA and sELISA.

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