scholarly journals Impact of Protoporphyrin Lysine Derivatives on the Ability of Nosema ceranae Spores to Infect Honeybees

Insects ◽  
2020 ◽  
Vol 11 (8) ◽  
pp. 504
Author(s):  
Katarzyna Buczek ◽  
Kamil Deryło ◽  
Mateusz Kutyła ◽  
Katarzyna Rybicka-Jasińska ◽  
Dorota Gryko ◽  
...  
Keyword(s):  
Protoporphyrin Ix ◽  
Nosema Ceranae ◽  
Control Group ◽  
Cationic Porphyrin ◽  
Infected Control ◽  
Food Absorption ◽  
Digestive Disorders

The effect of two protoporphyrin IX derivatives conjugated with single (PP[Lys(TFA)-OH)]2) or double (PP[Lys(TFA)-Lys(TFA)-OH]2) lysine moieties on the infectious capacity of Nosema ceranae spores was examined, and their efficacies were compared with those of a cationic porphyrin (H2TTMePP). Honeybees were inoculated with spores preincubated with porphyrins or with untreated spores (control). A significantly lower level of infection was observed in the bees infected with the porphyrin-treated spores than in the infected control. Porphyrins 1 and 2 reduced the infectious capability of microsporidia more efficiently than porphyrin 3, with bee mortality declining to almost 50%. Confocal analysis of the midguts of infected bees revealed distinct differences in the number of spores between the control group and the group infected with PP[Lys(TFA)-Lys(TFA)-OH]2-treated spores. Notably, bees with a reduced level of infection consumed less sucrose syrup than the control bees, indicating a reduction in digestive disorders and an improvement in food absorption.

scholarly journals P649 Dietary habits in patients with inactive Crohn’s disease: Results of a controlled study

2020 ◽  
Vol 14 (Supplement_1) ◽  
pp. S535-S535
Author(s):  
N Ben Mustapha ◽  
H Ben Youssef ◽  
A Labidi ◽  
M Hafi ◽  
M Fekih ◽  
...  
Keyword(s):  
Crohn’S Disease ◽  
Crohn's Disease ◽  
Dietary Habits ◽  
Controlled Study ◽  
Control Group ◽  
Cross Sectional ◽  
Dietary History ◽  
Dietary Restrictions ◽  
Digestive Disorders ◽  
Vegetables And Fruits

Abstract Background The purpose of this study was to compare the dietary habits of patients with Crohn’s disease in remission with a control group. Methods This is a comparative cross-sectional descriptive study that took place over a period of one month including 45 patients already managed for Crohn’s disease (CD), who had been in stable clinical remission for at least 6 months at the time of the survey and had the same treatment for at least 6 months compared with a group of 40 healthy volunteers adjusted for age, sex and body mass index (BMI) recruited among health personnel. Questionnaires about dietary habits, patients’ attitudes and beliefs about diet and its impact on their illness, and a dietary history-type food survey were asked and completed for all subjects. Results Total energy and macronutrient intakes were comparable in both groups and adapted to the guidelines. Fibre and micronutrient intakes were significantly lower in CD group, as was the consumption of dairy products, legumes, vegetables and fruits, oleaginous fruit. There were multiple dietary restrictions among CD patients including milk and its derivatives, fruits, vegetables, and legumes. In fact, 11% of them continued to strictly follow the same residue-free diet prescribed at the time of flares and others had barely expanded their diet. The reasons were mainly represented by the fear of triggering digestive disorders in 77% of cases. Fifty-six per cent of patients believed that fibre and milk negatively affect their disease and could trigger digestive disorders. Forty-four per cent said that the avoided foods gave them digestive disorders. By stratifying patients by age, sex or disease characteristics (location, treatment, history of surgery), we found no predictive factor for these dietary restrictions. Moreover, in 23% of patients, the diet was totally obscured by the doctor during consultations. In addition, and despite the discussion with the doctor about food, 46% turned to other sources such as the entourage, other patients, media and internet to find information on their diet. Conclusion Our study shows that patients with Crohn’s disease in remission suffer from several deficiencies due to multiple dietary exclusions. The results suggest that an unbalanced diet should be identified to avoid the micronutrient deficiency observed and highlights the importance of communication about diet between Doctors and patients.

Heme oxygenase attenuates allergen-induced airway inflammation and hyperreactivity in guinea pigs

2004 ◽  
Vol 287 (1) ◽  
pp. L26-L34 ◽  
Author(s):  
Abdelhamid Almolki ◽  
Camille Taillé ◽  
Gillian F. Martin ◽  
Peter J. Jose ◽  
Christine Zedda ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Airway Inflammation ◽  
Heme Oxygenase ◽  
Guinea Pigs ◽  
Protoporphyrin Ix ◽  
Airway Responsiveness ◽  
Mucus Secretion ◽  
Control Group ◽  
Repeated Administrations ◽  
Tin Protoporphyrin

Heme oxygenase (HO), the heme-degrading enzyme, has shown anti-inflammatory effects in several models of pulmonary diseases. HO is induced in airways during asthma; however, its functional role is unclear. Therefore, we evaluated the role of HO on airway inflammation [evaluated by bronchoalveolar lavage (BAL) cellularity and BAL levels of eotaxin, PGE2, and proteins], mucus secretion (evaluated by analysis of MUC5AC gene expression and periodic acid-Schiff staining), oxidative stress (evaluated by quantification of 4-hydroxynonenal adducts and carbonylated protein levels in lung homogenates), and airway responsiveness to histamine in ovalbumin (OVA)-sensitized and multiple aerosol OVA or saline-challenged guinea pigs (6 challenges, once daily, OVA group and control group, respectively). Airway inflammation, mucus secretion, oxidative stress, and responsiveness were significantly increased in the OVA group compared with the control group. HO upregulation by repeated administrations of hemin (50 mg/kg ip) significantly decreased airway responsiveness in control animals and airway inflammation, mucus secretion, oxidative stress, and responsiveness in OVA animals. These effects were reversed by the concomitant administration of the HO inhibitor tin protoporphyrin-IX (50 μmol/kg ip). Repeated administrations of tin protoporphyrin-IX alone significantly increased airway responsiveness in control animals but did not modify airway inflammation, mucus secretion, oxidative stress, and responsiveness in OVA animals. These results suggest that upregulation of the HO pathway has a significant protective effect against airway inflammation, mucus hypersecretion, oxidative stress, and hyperresponsiveness in a model of allergic asthma in guinea pigs.

scholarly journals The Effectiveness of Moxibustion: An Overview During 10 Years

2011 ◽  
Vol 2011 ◽  
pp. 1-19 ◽  
Author(s):  
Song-Yi Kim ◽  
Younbyoung Chae ◽  
Seung Min Lee ◽  
Hyejung Lee ◽  
Hi-Joon Park
Keyword(s):  
Meta Analysis ◽  
Breech Presentation ◽  
Control Group ◽  
Controlled Trials ◽  
Control Groups ◽  
Randomized Controlled ◽  
Language Restriction ◽  
Digestive Disorders ◽  
General Care

Moxibustion has been used to treat various types of disease. However, there is still insufficient evidence regarding its effectiveness. This study was performed to summarize and evaluate the effectiveness of moxibustion. A search was performed for all randomized controlled trials in PubMed between January 1998 and July 2008 with no language restriction. The results yielded 47 trials in which six moxibustion types were applied to 36 diseases ranging from breech presentation to digestive disorders. Moxibustion was compared to three types of control group: general care, Oriental medical therapies or waiting list. Moxibustion was superior to the control in 14 out of 54 control groups in 46 studies. There were no significant differences among groups in 7 studies, and the outcome direction was not determined in 33 studies. Seven studies were included in a meta-analysis. Moxibustion was more effective than medication in two ulcerative colitis studies (relative risk (95% CI), 2.20 (1.37, 3.52),P= .001,I2= 0%). Overall, our results did not support the effectiveness of moxibustion in specific diseases due to the limited number and low quality of the studies and inadequate use of controls. In order to provide appropriate evidence regarding the effectiveness of moxibustion, more rigorous clinical trials using appropriate controls are warranted.

scholarly journals An in vitro study of the effect of 5-ALA-mediated photodynamic therapy on oral squamous cell carcinoma

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Ying Ma ◽  
Shujuan Qu ◽  
Liangpeng Xu ◽  
Hongbo Lu ◽  
Baoguo Li
Keyword(s):  
Squamous Cell Carcinoma ◽  
Photodynamic Therapy ◽  
Oral Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Laser Irradiation ◽  
Squamous Cell ◽  
Protoporphyrin Ix ◽  
Control Group ◽  
Blank Control Group

Abstract Background The primary aim of this study was to observe the effect of 5-ALA-mediated photodynamic therapy on oral squamous cell carcinoma in vitro. Methods SCC25 cells were divided into the observation group and the blank control group. Different concentrations of 5-ALA and SCC25 cells were co-incubated for different times, and the concentration of protoporphyrin IX was detected by flow cytometry. SCC25 cells were divided into the 5-ALA group (100 mg/L), the laser irradiation group alone, the 5-ALA plus laser irradiation group, and the blank control group (0 mg/L 5-ALA), and the methyl thiazolyl tetrazolium (MTT) solution method was used (each group was incubated for 4, 8 and 12 h in turn). The cell survival rate was calculated. Using annexin V-fluorescein isothiocyanate/propidium iodide method, the apoptosis of SCC25 cells was detected by flow cytometry. Results The level of protoporphyrin IX in SCC25 cells increased with increased concentrations of 5-ALA and length of incubation. However, after 12 h, protoporphyrin IX level in SCC25 cells was gradually stabilized, and similar effect was obtained with 100 mg/L or more 5-ALA, indicating that the level of protoporphyrin IX in SCC25 cells was determined by 5-ALA concentration and incubation time. 5-ALA plus laser irradiation exerted an inhibitory effect on the growth of SCC25 cells, which was highly associated with drug dose and incubation time. Compared with the control group, laser irradiation alone or 5-ALA alone had no effect on the apoptosis of SCC25 cells. Different concentrations of 5-ALA combined with laser irradiation showed a remarkable effect of apoptosis, and a higher apoptosis rate was seen with higher drug concentrations. Conclusion 5-ALA-mediated photodynamic therapy affects the growth of SCC25 cells in vitro, which may provide a new idea for the clinical treatment of oral squamous cell carcinoma.

scholarly journals Influence of probiotics “Immunobacterin-D” on biocenoses and development of the gastrointestinal tract of calves

2020 ◽  
Vol 22 (98) ◽  
pp. 22-27
Author(s):  
Zh. V. Rybachuk ◽  
O. I. Shkromada ◽  
A. V. Predko ◽  
Y. A. Dudchenko
Keyword(s):  
Controlled Trial ◽  
Animal Husbandry ◽  
Control Group ◽  
Lower Growth ◽  
Randomized Controlled ◽  
Lower Growth Rate ◽  
Digestive Disorders ◽  
Experimental Group ◽  
Number Of Bacteria ◽  
Private Farm

The paper presents the results of an experiment on the use of enzyme-probiotic supplement “Immunobacterin-D” for calves in the first two months of life. Probiotics are used in animal husbandry for the prevention and treatment of infectious diseases, increase immunity, correction of the microflora after antibiotic therapy, prevention of stress, increase growth. The study was conducted in a private farm in the Lyubar district of Zhytomyr region, which kept cattle of different ages. In a randomized controlled trial, two experimental groups of six animals were formed in each on the principle of analogues. One group was a control. Calves of the experimental group from the second day after birth were fed together with colostrum “Immunobacterin-D” at the rate of 3 grams per animal. For the first five days, the enzyme-probiotic supplement was given to the calves once a day during the morning feeding, and in subsequent studies, once every two days for a month. The results of the studies show that no case of diarrhea was registered among calves receiving the enzyme-probiotic supplement “Immunobacterin-D”. Among the animals of the control group, 66.7 % had digestive disorders – dyspepsia. Subsequently, such animals had a lower growth rate. Enzyme-probiotic supplement “Immunobacterin-D” also contains Bacillus Subthilis, Bacillus Licheniformis and enzymes and protease and lipase – it provides a polyvector effect in the digestive tract in general and scarring in particular. It was found that on the fourteenth day of feeding probiotic-containing drug “Immunobacterin-D” to calves of the experimental group, the number of bacteria probably increased by 83.5 %; ciliates – by 65.0 %; endodynomorphs – by 24.3 %. After one month of the experiment, the number of bacteria in the experimental group probably increased by 94.3 %; ciliates – by 40.5 %; endodynomorphs – by 26.7 %, compared with the control (P < 0.001). The obtained data of registration of the first chewing gum in calves prove that the components of the enzyme-probiotic supplement “Immunobacterin-D” accelerate the population of microflora and the development of scar digestion in calves 2.5 times compared to calves in the control group. Prospects for further research are to study the effect of enzyme-probiotic supplement “Immunobacterin-D” on the indicators of scar fermentation of calves.

Differential immune responses in mice infected with the tissue-dwelling nematode Trichinella zimbabwensis

2015 ◽  
Vol 90 (5) ◽  
pp. 547-554 ◽  
Author(s):  
W.N. Onkoba ◽  
M.J. Chimbari ◽  
J.M. Kamau ◽  
S. Mukaratirwa
Keyword(s):  
Immune Responses ◽  
Antibody Responses ◽  
Diagnostic Tools ◽  
Enzyme Linked Immunosorbent Assay ◽  
Control Group ◽  
Infected Control ◽  
Tnf Α ◽  
Infected Control Group ◽  
Tissue Migration ◽  
Th1 And Th2

AbstractTo improve diagnostic tools, immunotherapies and vaccine development for trichinellosis surveillance and control there is a need to understand the host immune responses induced during infection with Trichinella zimbabwensis, a tissue-dwelling nematode. In this study, we sought to determine immune responses induced in mice during T. zimbabwensis infection. The parasite strain used (Code ISS1209) was derived from a naturally infected crocodile (Crocodylus niloticus) and is the main Trichinella species prevalent in southern Africa. Sixty 6- to 8-week-old female BALB/c mice were randomly assigned to two equal groups: T. zimbabwensis-infected (n= 30) and the non-infected control group (n= 30). Levels of serum tumour necrosis factor-alpha (TNF-α), interleukin-10 (IL-10), interleukin-4 (IL-4) as well as parasite-specific IgM, IgG, IgG1, IgG2a, IgG2b and IgG3 antibody responses were determined using enzyme-linked immunosorbent assay (ELISA). The cytokines and antibodies provided information on T-helper 1 (Th1)- and Th2-type, T-regulatory and antibody responses. Results showed that during the intestinal stage of infection, higher levels of parasite-specific IgM, IgG, IgG1 (P <  0.05) and IL-10 and TNF-α (P <  0.001) were observed in the Trichinella-infected group compared with the non-infected control group. In the parasite establishment and tissue migration phases, levels of IgG1 and IgG3 were elevated (P <  0.001), while those of IgM (P <  0.01) declined on days 21 and 35 post infection (pi) compared to the enteric phase. Our findings show that distinct differences in Th1- and Th2-type and T-regulatory responses are induced during the intestinal, tissue migration and larval establishment stages of T. zimbabwensis infection.

scholarly journals Endogenous Estrogen-Mediated Heme Oxygenase Regulation in Experimental Menopause

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Anikó Pósa ◽  
Renáta Szabó ◽  
Anett Csonka ◽  
Médea Veszelka ◽  
Anikó Magyariné Berkó ◽  
...  
Keyword(s):  
Left Ventricle ◽  
Heme Oxygenase ◽  
Protoporphyrin Ix ◽  
Control Group ◽  
St Segment ◽  
Female Wistar Rats ◽  
Endogenous Estrogen ◽  
Estrogen Depletion ◽  
Cardiac Left Ventricle

Estrogen deficiency is one of the main causes of age-associated diseases in the cardiovascular system. Female Wistar rats were divided into four experimental groups: pharmacologically ovariectomized, surgically ovariectomized, and 24-month-old intact aging animals were compared with a control group. The activity and expression of heme oxygenases (HO) in the cardiac left ventricle, the concentrations of cardiac interleukin-6 (IL-6) and tumor necrosis factor-α(TNF-α), the myeloperoxidase (MPO) activity in the cardiac left ventricle, and the effects of heme oxygenase blockade (by 24-hour and 1-hour pretreatment with tin-protoporphyrin IX, SnPP) on the epinephrine and phentolamine-induced electrocardiogram ST segment changesin vivowere investigated. The cardiac HO activity and the expression of HO-1 and HO-2 were significantly decreased in the aged rats and after ovariectomy. Estrogen depletion was accompanied by significant increases in the expression of IL-6 and TNF-α. The aged and ovariectomized animals exhibited a significantly elevated MPO activity and a significant ST segment depression. After pretreatment with SnPP augmented ST segment changes were determined. These findings demonstrate that the sensitivity to cardiac ischemia in estrogen depletion models is associated with suppression of the activity and expression of the HO system and increases in the secretion of proinflammatory cytokines and biomarkers.

scholarly journals Effects of Sodium Chloride-Rich Mineral Water on Intestinal Epithelium. Experimental Study

2021 ◽  
Vol 18 (6) ◽  
pp. 3261
Author(s):  
Pascual-Vicente Crespo ◽  
Fernando Campos ◽  
Manuel Leal ◽  
Francisco Maraver
Keyword(s):  
Sodium Chloride ◽  
Intestinal Epithelium ◽  
Mineral Water ◽  
Mineral Waters ◽  
Control Group ◽  
Standard Diet ◽  
Direct Administration ◽  
Extrusion Mechanism ◽  
Digestive Disorders ◽  
Epithelial Disruption

Since knowledge concerning the cellular and tissue substrate that explains the therapeutic action of mineral waters is generally very scarce, we address the different effects that Lanjarón-Capuchina mineral water exerts on the intestinal epithelium in an experimental model as a prototype of the sodium chloride-rich mineral waters used in digestive disorders. In the experimental protocol, two groups of five adult Wistar rats received unrestricted mineral water in their diet or mineral water directly into the gastrointestinal tract through a catheter. A third control group was given a standard diet and water ad libitum. Intestinal samples for scanning electron microscopy were analyzed according to standardized methods. The observations carried out by microscope after the administration of the sodium chloride-rich mineral water clearly indicate that the hypertonic action of this mineral water affects the structure of the intestinal epithelium. It modifies the microvilli absorption in terms of the groups of enterocytes and the secretion of goblet cells, but it particularly affects the epithelial renewal process, accelerating and stimulating cell extrusion. The type of extrusion mechanism observed by microscope allows us to affirm that, although this increased after direct administration, it does not generate an epithelial disruption as it occurs in other circumstances with other extrusion modalities.

scholarly journals Probiotic Efficacy of Microencapsulated Saccharomyces cerevisiae on Gastrointestinal Tract Integrity in Rats

2020 ◽  
Vol 11 (2) ◽  
pp. 9456-9466
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Gastrointestinal Tract ◽  
Intestinal Tract ◽  
Histological Analysis ◽  
Inflammatory Cells ◽  
Control Group ◽  
Spleen Tissue ◽  
Yeast Viability ◽  
Food Absorption ◽  
Red Pulp

Saccharomyces cerevisiae as a probiotic has been prescribed for prophylaxis and treatment of gut infected diseases. This study was designed to assess the effects of encapsulated S. cerevisiae on gastrointestinal tract properties in the animal model. In rats, after 8-week feeding by encapsulated and unencapsulated S. cerevisiae, the mount of the IgA protein was determined by ELISA. Rats were euthanized, and the liver, kidney, and intestinal tract were collected for histological analysis. The consumption of S. cerevisiae could increase IgA levels in comparison with the control group. This increase was significant in the lower parts of the small intestine (p<0.05). In histopathological evaluations; Liver microscopic examination showed fatty change and margination of Kupffer cells as well as their hyperplasia and hypertrophy, which is a mark for liver regeneration in both groups that received microencapsulated and free probiotic. In spleen structure, in both groups, mild inflammation of the spleen tissue in the form of accumulation of red pulp of erythrocytes, hypercellular of this tissue was observed due to hyperplasia of lymphoid follicles and hyperplasia and hepaticophyta of retinal cells and macrophages. The lymphatic structure of the spleen showed relatively intense hyperplasia. In the colon structure, in both groups, hyperplasia of goblet calls along with slight infiltration of inflammatory cells was noted. Calcium alginate encapsulation considerably improves the yeast viability in simulated gastric juice and simulated intestine juice situations. Also, S. cerevisiae has positive profits in suitable food absorption and then decreasing diarrhea and other similar gastrointestinal disorders.

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