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Table 1 The beneficial effects of probiotic on endocrine disorders via regulation of inflammatory pathways

From: Probiotics ameliorate endocrine disorders via modulating inflammatory pathways: a systematic review

Probiotics

Endocrine disorder

Animal/

Human

Duration

Key findings

Mechanism(s)

References

Multi-strain probiotics “Symbitter” a

Obesity

Rat

8 Weeks

Probiotic supplementation significantly reduces the prevalence of obesity.

By increasing IL-4 and TGF-β, restoring IL-10, decreasing IL-1β and IL-12Bp40.

Kobyliak, 2018

[33]

Multi-strain probiotics “Symbitter”

Obesity

Rat

3 Months

Probiotics treatment showed significant decreasing of HOMA-IR and rate of obesity.

By decreasing IL-1β, IL-12Bp40 and elevating of TGF-β.

Kobyliak, 2020

[34]

Lactobacillus mali APS1 and L. kefiranofaciens M1

Obesity

Mice

8 Weeks

Probiotic significantly reduced body weight gain, body fat, liver weight, fat accumulation in the mesenteric adipose and effectively maintained the blood glucose level.

By decreasing TNF-α and IL-6.

Lin, 2016

[35]

VSL#3 probiotic mixtureb

Obesity

Mice

4 Weeks

Probiotics improved high fat diet-induced steatosis and insulin resistance.

By increasing NKT cell function and number and decreasing TNF-α- IKK-β signaling.

Ma, 2008

[36]

Lactobacillus plantarum

NCIMB8821

Obesity

Mice

15 Weeks

Probiotics improved glucose homeostasis and metabolic dysfunction

By decreasing MCP-1 and TNF-α and increasing IL-23, IL-33 and TNF-β

Martinic, 2018

[37]

Enterococcus faecalis AG5

Obesity

Rat

24 Weeks

Probiotics significantly reduced body weight, BMI, serum cholesterol, triglycerides, improved HDL, insulin and leptin.

By decreasing TNF-α

Mishra, 2020

[38]

Lactobacillus plantarum

NCIMB8821

Obesity

Mice

10 Weeks

Probiotics prevented the development of insulin resistance, which is at least partly attributable to the prevention of obesity.

By decreasing levels of MCP-1 and IL-6 and TNF-α mRNA

Okubo, 2013

[39]

Clostridium Butyricum CGMCC0313

Obesity

Mice

13 Weeks

Probiotics ameliorated obesity, insulin resistance as well as adipose inflammation.

By decreasing TNF-α and increasing IL-10, IL-22 in colon

Decreasing TNF-α, IL-6, IL-1β and MCP-A in adipose tissue.

Shang, 2016

[40]

Bacillus coagulans

GBI-30608

Obesity

Mice

5 Weeks

Probiotic reduced food intake, attenuated body weight gain and enhanced glucose tolerance.

By preventing hepatic overexpression of, IL-1β, IL-6.

Urtasun, 2020

[41]

Probiotic yogurt with or without low-calorie diet (LCD)c

Obesity

Human

8 Weeks

Probiotics reduced fat percentage, and body weight among overweight and obese individuals.

By reduction in CRP, TNF-α and IL-17

Zarrati, 2014

[42]

Seven strains of lactic-acid-producing bacteriad

Diabetes

Mice

12 Weeks

Metformin and probiotics exerted beneficial outcomes on diabetes.

By downregulation of IL-6 and TNF-alpha.

Kattar, 2020

[43]

Lactobacillus reuteri GMNL-263

Diabetes

Rat

14 Weeks

Probiotics significantly improved insulin resistance, glucose tolerance, oxidative stress, fatty liver and hepatic damage.

By decreasing IL-6 and TNF-α in concentration adipose tissue.

Hsieh, 2013

[44]

Multi-strain probiotics “Symbitter”

Diabetes

Human

8 Weeks

Probiotic therapies modestly improved insulin resistance in patients with type 2 diabetes.

By decreasing IL-1β, IL-6 and TNF-α

Kobyliak, 2018

[45]

Lactobacillus acidophilus ZT-L1, Bifidobacterium bifidum ZT-B1, Lactobacillus reuteri ZT-Lre, and Lactobacillus fermentum ZT-L3

Diabetes

Human

12 Weeks

probiotics supplementation had beneficial effects on glycemic control and markers of cardio-metabolic risk.

By reducing CRP

Mafi, 2018

[46]

L. acidophilus, L. bulgaricus, L. bifidum, and L. casei

Diabetes

Human

6 Weeks

Probiotics reduced insulin resistance.

By decreasing the IL-6 level and increasing CRP

Mazloom, 2013

[47]

“Ecologic®Barrier”e

Diabetes

Human

6 Months

Probiotics reduced insulin resistance and concentration of glucose, triglyceride and cholesterol.

By decreasing IL-6, TNF-α and CRP

Sabico, 2019

[48]

Lactobacillus acidophilus, Lactobacillus casei, Bifidobacterium bifidum

Diabetes

Human

12 Weeks

Probiotic supplementation had beneficial effects on glucose homeostasis, and increased insulin sensitivity.

By decreasing CRP

Soleimani, 2017

[49]

Bifidobacterium longum DD98

Diabetes

Mice

3 Weeks

Probiotics could alleviate the progression of diabetes.

By decreasing IL-1β, IL-6 and TNF-α

Zhao, 2020

[50]

Multi-strain probioticsf

Nonalcoholic fatty liver disease (NAFLD)

Human

1 Year

Probiotic significantly improved liver histology, serum ALT in patients with NAFLD.

By decreasing IL-1β, IL-6, TNF-α and endotoxin in hepatic cells

Duseja, 2019

[10]

C. MIYAIRI 588butyricum producing probiotic

NAFLD

Rat

8–50 Weeks

MIYAIRI 588 had beneficial effects in the prevention of NAFLD progression

By activating AMPK / AKT/PI3K/Nrf2 pathways and blocking of TNF-α and NF-kB pathways

Endo, 2013

[51]

VSL#3 probiotic mixture

NAFLD

Mice

12 Weeks

Probiotics improved hepatic steatosis.

By decreasing NKT cell activation

Liang, 2014

[52]

Multi-strain probiotics (Lactocare)g

NAFLD

Human

8 Weeks

Probiotic supplementation reduced the glycemic indices.

By decreasing TNF-a, and IL-6.

Sepideh, 2016

[53]

Lactobacillus paracasei N1115

NAFLD

Mice

16 Weeks

Probiotics were effective in the prevention and treatment of NAFLD.

By repression of lipopolysaccharides, TLR 4 and NF-kB.

Yao, 2019

[54]

Microbiota transplantation

Metabolic syndrome

Mice

16 Weeks

Intestinal microbiota can induce insulin resistance and obesity in an animal model that is genetically protected from these processes.

By activating of TLR4, associated with ER stress and JNK activation

Guadagnini, 2019

[55]

Lactobacillus rhamnosus GG

Metabolic syndrome

Mice

12 Weeks

Probiotic treatment may be a potential strategy in the prevention/treatment of metabolic disorders.

Increasing hepatic FGF21 mRNA expression and protein levels, which increased adiponectin production and NF-kB protein level.

Liu, 2020

[56]

  1. aMulti- probiotic “symbiter” containing concentrated biomass of 14 probiotic bacteria genera Bifidobacterium, Lactobacillus, Lactococcus, Propionibacterium
  2. bVSL#3 probiotic mixture consisting of eight bacterial strains (four Lactobacillus, three Bifidobacterium and one Streptococcus)
  3. cThe probiotic yogurt was made with the strains: Lactobacillus acidophilus LA5, Lactobacillus casei DN001, and Bifidobacterium lactis BB12
  4. dProbiotic strains including: Lactobacillus rhamnosus, Saccharomyces boulardii, Bifidobacterium breve, Bifidobacterium lactis, Lactobacillus acidophilus, Lactobacillus plantarum, and Lactobacillus reuteri
  5. e”Ecologic®Barrier” containing (Bifidobacterium bifidum W23, Bifidobacterium lactis W52, Lactobacillus acidophilus W37, Lactobacillus brevis W63, Lactobacillus casei W56, Lactobacillus salivarius W24, Lactococcus lactis W19 and L. lactis W58)
  6. fIt composed of (Lactobacillus paracasei DSM 24733, Lactobacillus plantarum DSM 24730, Lactobacillus acidoph- ilus DSM 24735 and Lactobacillus delbrueckii subsp. bulgaricus DSM 24734, Bifidobacterium longum DSM 24736, Bifidobacterium infantis DSM 24737, Bifidobacterium breve DSM 24732, and Streptococcus thermophilus DSM 24731)
  7. gLactocare containing (Lactobacillus rhamnosus, Lactobacillus casei, Lactobacillus acidophilus, Bifidobacterium breve, Lactobacillus bulgaricus, Bifidobacterium longum, Streptococcus thermophilus)