Influence of Gut Microbiota on Progression to Tuberculosis Generated by High Fat Diet-Induced Obesity in C3HeB/FeJ Mice

The administration of a high fat content diet is an accelerating factor for metabolic syndrome, impaired glucose tolerance, and early type 2 diabetes. The present study aims to assess the impact of a high fat diet on tuberculosis progression and microbiota composition in an experimental animal model using a C3HeB/FeJ mouse strain submitted to single or multiple consecutive aerosol infections. These models allowed us to study the protection induced by Bacillus Calmette-Guérin vaccination as well as by the natural immunity induced by chemotherapy after a low dose Mycobacterium tuberculosis infection. Our results show that a high fat diet is able to trigger a pro-inflammatory response, which results in a faster progression toward active tuberculosis and an impaired protective effect of BCG vaccination, which is not the case for natural immunity. This may be related to dysbiosis and a reduction in the Firmicutes/Bacteroidetes ratio in the gut microbiota caused by a decrease in the abundance of the Porphyromonadaceae family and, in particular, the Barnesiella genus. It should also be noted that a high fat diet is also related to an increase in the genera Alistipes, Parasuterella, Mucispirillum, and Akkermansia, which have previously been related to dysbiotic processes. As diabetes mellitus type 2 is a risk factor for developing tuberculosis, these findings may prove useful in the search for new prophylactic strategies for this population subset.
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research

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In this study, serum IL6 was measured by ELISA, and the HSD11B1rs12086634(T/G) polymorphism was analyzed using a TaqMan allelic discrimination assay technique. There were statistically significant differences between the two studied groups concerning the serum IL-6 level and HSD11B1rs12086634(T/G) genotype distribution, with increased serum IL6 and increased frequencies of the GG and TG genotypes in patients with PCO. The GG genotype of HSD11B1 rs12086634(T/G) and its associated high level of serum IL-6 may represent genetic risk factors for PCOS.
Source: Meta Gene - Category: Genetics & Stem Cells Source Type: research
ConclusionThe findings from this study have established the need to improve current education and rehabilitation programmes for patients with CHF by addressing those factors significantly influencing their adherence to diet and medication.
Source: Heart and Lung: The Journal of Acute and Critical Care - Category: Respiratory Medicine Source Type: research
We present a case of female patient who was referred to the consultation because she was about to start chemotherapy with an anti-CD20 agent and had a positive anti-HBc and anti-HBs. During routine workup an occult hepatitis B virus infection was diagnosed. Upon further study mutations in the PreCore and Basal Core Promoter regions were identified, as well as, a double genotype D/C. Therapy with tenofovir was initiated before the patient was started on chemotherapy. This case highlights the importance of comprehensive studying of patients who present with apparently resolved chronic hepatitis B virus infection, especially ...
Source: IDCases - Category: Infectious Diseases Source Type: research
Publication date: Available online 16 November 2019Source: Trends in Endocrinology &MetabolismAuthor(s): Carina Bodden, Anthony J. Hannan, Amy C. ReicheltGlobally, obesity has reached epidemic proportions. The rapidly increasing numbers of overweight people can be traced back to overconsumption of energy-dense, poor-quality foods as well as physical inactivity. This development has far-reaching and costly implications. Not only is obesity associated with serious physiological and psychological complications, but mounting evidence also indicates a ripple effect through generations via epigenetic changes. Parental obesit...
Source: Trends in Endocrinology and Metabolism - Category: Endocrinology Source Type: research
DiscussionHyperchloremic acidosis is associated with a non-anion gap, decrease in plasma bicarbonate and increase in plasma chloride. Rarely, as with this case, it may present with a high-anion gap. The use of bicarbonate therapy has shown improvement in cases of non-anion gap acidosis however there is very little data to support its role in high-anion gap hyperchloremic metabolic acidosis.
Source: African Journal of Emergency Medicine - Category: Emergency Medicine Source Type: research
Publication date: Available online 17 November 2019Source: Pharmacological ResearchAuthor(s): Moein Askarpour, Amir Hadi, Maryam Miraghajani, Michael Symonds, Ali Sheikhi, Ehsan GhaediAbstractDespite preclinical studies demonstrating the efficacy of L-carnitine supplementation for weight management, findings in clinical setting are contradictory. Electronic bibliographical databases were systematically searched up to February 2019 with no limitation in language, including Scopus, PubMed, ISI Web of Science and Cochrane Library. Clinical trials registry platform were also searched. All randomized controlled trials (RCTs) wh...
Source: Pharmacological Research - Category: Drugs & Pharmacology Source Type: research
ConclusionsIn contrast to Europe and North America, where R. rosea is the focal species in commerce, the trade in Rhodiola products in China is much more diverse. In the face of growing demand, both effective conservation of wild populations and cultivation are needed.Graphical abstract
Source: Journal of Ethnopharmacology - Category: Drugs & Pharmacology Source Type: research
This study aimed to investigate the mechanism of action of ginger extract and its compound, 6-shogaol, on pancreatic islets as well as on expressions of TRPV-1 and NMDAR2B in the spinal cord of streptozotocin (STZ)-induced mice model of PDN.Materials and methodsSixty-four 5–6 months old male-Balb/C mice were induced with 110 mg/kgBW STZ i.p., while eight mice were used as control group. Mice with blood glucose level ≥200 mg/d, that suffered hyperalgesia and allodynia were classified as PDN mice. Hot plate and von Frey filament tests were performed once a week until termination. At day 28 after considered as PDN,...
Source: Journal of Ethnopharmacology - Category: Drugs & Pharmacology Source Type: research
Publication date: Available online 16 November 2019Source: Journal of Evidence Based Dental PracticeAuthor(s): Walter J. Psoter, Erin T. Shope
Source: Journal of Evidence Based Dental Practice - Category: Dentistry Source Type: research
ConclusionsThe PCV-VG mode of ventilation limited the peak inspiratory pressure, decreased the driving pressure and increased the dynamic compliance compared to VCV in obese patients undergoing laparoscopic hysterectomy. PCV-VG may be a preferable modality to prevent barotrauma during laparoscopic surgeries in obese patients.ResumoJustificativa e objetivosO objetivo deste estudo foi investigar a eficácia dos modos de ventilação garantida por volume controlado por pressão (PCV-VG) e ventilação controlada por volume (VCV) para manter pressões adequadas nas vias aéreas, ...
Source: Brazilian Journal of Anesthesiology - Category: Anesthesiology Source Type: research
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