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Mild stimulatory effect of a probiotic mix on bone mass when treatment is initiated 1.5 weeks after ovariectomy in mice
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- Ohlsson, Claes, 1965 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för medicin, avdelningen för invärtesmedicin och klinisk nutrition,Centre for Bone and Arthritis Research,Institute of Medicine, Department of Internal Medicine and Clinical Nutrition
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- Lawenius, Lina (author)
- Gothenburg University,Göteborgs universitet,Institutionen för medicin, avdelningen för invärtesmedicin och klinisk nutrition,Centre for Bone and Arthritis Research,Institute of Medicine, Department of Internal Medicine and Clinical Nutrition
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- Andersson, Annica, 1983 (author)
- Gothenburg University,Göteborgs universitet,Centre for Bone and Arthritis Research,Institutionen för medicin, avdelningen för reumatologi och inflammationsforskning,Institute of Medicine, Department of Rheumatology and Inflammation Research
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- American Physiological Society, 2021
- 2021
- English.
- In: American Journal of Physiology-Endocrinology and Metabolism. - : American Physiological Society. - 0193-1849 .- 1522-1555. ; 320:3
- Journal article (peer-reviewed)
Abstract
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- Studies in humans and rodents show that probiotic bacteria can protect from bone loss caused by sex steroid deficiency. We showed earlier that a mixture of three probiotic bacteria, Lacticaseibacillus paracasei DSM13434, Lactiplantibacillus plantarum DSM 15312, and DSM 15313 (L. mix), protects mice from ovariectomy (ovx)-induced bone loss when treatment was started 2 wk before sham and ovx surgery. In addition, the same probiotic treatment protected against lumbar spine bone loss in early postmenopausal women. In the present study, we wanted to evaluate the therapeutic potential of L. mix by starting treatment 1.5 wk after ovx when most of the rapid bone loss as a result of estrogen deficiency has already occurred. Treatment with L. mix for 5.5 wk increased the trabecular thickness but not the trabecular number in the proximal metaphyseal region of tibia compared with vehicle treatment. Cortical thickness and cortical area of the middiaphyseal part of the tibia were significantly decreased in ovx mice but not in L. mix-treated ovx mice. The bone-protective effects of L. mix in ovx mice were associated with a protection against ovx-induced reduction of the frequency of regulatory T-cells and of the expression of Tgfb in the bone marrow. In conclusion, the probiotic L. mix exerted a mild stimulatory effect on trabecular and cortical bone width when treatment is initiated 1.5 wk after ovariectomy in mice. This effect was associated with effects on bone-protecting regulatory T-cells. The results suggest that L. mix may exert beneficial effects on bone mass when treatment is started after ovariectomy. NEW & NOTEWORTHY The probiotic L. mix exerted a mild stimulatory effect on trabecular and cortical bone width when treatment is initiated 1.5 wk after ovariectomy in mice. This effect was associated with effects on bone-protecting regulatory T-cells. The results suggest that L. mix may exert beneficial effects on bone mass when treatment is started after ovariectomy.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Endokrinologi och diabetes (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Endocrinology and Diabetes (hsv//eng)
Keyword
- bone mass
- gut microbiome
- osteoporosis
- probiotic
- regulatory T-cells
- Endocrinology & Metabolism
- Physiology
Publication and Content Type
- ref (subject category)
- art (subject category)
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