scholarly journals Effect of Lactobacillus reuteri Administration on Wrinkle Formation and Type I Procollagen Levels in UVB-Exposed Male Balb/c Mice (Mus musculus)

2020 ◽  
Vol 4 (3) ◽  
pp. 113
Author(s):  
Ivanna Valentina ◽  
Achadiyani Achadiyani ◽  
Sunarjati Sudigdo Adi ◽  
Ronny Lesmana ◽  
Reni Farenia
Keyword(s):  
Oxidative Stress ◽  
Lactobacillus Reuteri ◽  
Ultraviolet B ◽  
Type I ◽  
Uvb Radiation ◽  
Dorsal Skin ◽  
Uvb Irradiation ◽  
Type I Procollagen ◽  
Group 3 ◽  
Group 1

Background: Chronic Ultraviolet B (UVB) exposure causes oxidative stress that may induce damages to the collagen matrix and thus plays a role in the wrinkle formation. Lactobacillus reuteri is a probiotic that may exerts antioxidant effects, thus helping to reduce damages caused by UVB-induced oxidative stress in the skin.Materials and Methods: Twenty-eight male Balb/c mice were divided equally into control group, UVB radiation only group, oral L. reuteri supplementation only group, and UVB radiation with oral L. reuteri supplementation group. UVB irradiation was given 3 times a week (100 seconds/exposure, within 3 cm distance) for 10 weeks, with a total dose of 166 mJ/cm2. Oral L. reuteri supplementation (0.2 mL, 108 CFU) was provided every morning after meal via orogastric feeding tube for 10 weeks. Wrinkle formation on the dorsal skin of the mice was evaluated in accordance with the Bissett method and type I procollagen levels was evaluated by western blotting.Results: In comparison with the group receiving only UVB irradiation, the group receiving probiotic and UVB irradiation showed significantly lower wrinkle scores (Group 1 vs. Group 3, 2.50±0.55 vs. 1.00±0,00; p<0.05) and significantly higher type I procollagen levels (Group 1 vs. Group 3, 0.88±0.36 vs. 1.92±0.46; p<0.05).Conclusion: Results of the current study showed that L. reuteri supplementation may reduce wrinkle formation and increase type I procollagen production in UVB-exposed dorsal skin of male Balb/c mice.Keywords: Lactobacillus reuteri, type I procollagen, photoaging, wrinkles, ultraviolet B

scholarly journals Standardized Edible Bird's Nest Extract Prevents UVB Irradiation-Mediated Oxidative Stress and Photoaging in the Skin

Antioxidants ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 1452
Author(s):  
Ok-Kyung Kim ◽  
Dakyung Kim ◽  
Minhee Lee ◽  
Seong-Hoo Park ◽  
Wakana Yamada ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Ultraviolet B ◽  
Type I ◽  
Ceramide Synthase ◽  
Hairless Mice ◽  
In Vivo Models ◽  
Uvb Irradiation ◽  
Edible Bird’S Nest

We investigated whether standardized edible bird’s nest extract (BNE-PK) can prevent ultraviolet B (UVB) irradiation-mediated oxidative stress and photoaging in the skin using in vitro and in vivo models. BNE-PK increased skin hydration by hyaluronic acid synthesis and activation of ceramide synthase in UVB-irradiated hairless mice and HaCaT cells. Furthermore, BNE-PK suppressed melanogenesis by down-regulation of the cAMP/PKA/CREB/MITF/TRP-1/TRP-2/tyrosinase pathway in UVB-irradiated hairless mice and 3-isobutyl-1-methylxanthine (IBMX)-treated B16F10 cells. In UVB-irradiated hairless mice, BNE-PK attenuated the wrinkle formation-related JNK/c-FOS/c-Jun/MMP pathway and activated the TGF-βRI/SMAD3/pro-collagen type I pathway during UVB-mediated oxidative stress. Based on these findings, our data suggest that BNE-PK may potentially be used for the development of effective natural anti-photoaging functional foods for skin health.

Cholinesterase Activities and Oxidative Stress in Cattle Experimentally Exposed to Nitrate/Nitrite in Cultivated Pasture with Different Fertilization Schemes

2018 ◽  
Vol 46 (1) ◽  
Author(s):  
Ricardo Christ ◽  
Aleksandro Schafer Da Silva ◽  
Mateus Eloir Grabriel ◽  
Luan Cleber Henker ◽  
Renan Augusto Cechin ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Enzyme Activity ◽  
Cholinesterase Activity ◽  
Blood Samples ◽  
Group 3 ◽  
Cholinesterase Activities ◽  
Group 2 ◽  
Nitrate And Nitrite ◽  
And Oxidative Stress ◽  
Group 1

  Background: Nitrate and nitrite poisoning is associated with pasture intake that has high nitrate levels and leads to acute methemoglobinemia. Pasture may accumulate nitrate under certain conditions, such as excessively fertilized soil or en­vironmental conditions that enhance the N absorption (rain preceded by a period of drought). After ingestion of plants, this substrate reaches the rumen and, in physiological conditions, is reduced to nitrite and afterward to ammonia. The aim of this study was to evaluate changes in cholinesterase activities and oxidative stress caused by subclinical poisoning for nitrate and nitrite in cattle fed with Pennisetum glaucum in three different fertilization schemes. Materials, Methods & Results: In order to perform the experimental poisoning, the pasture was cultivated in three dif­ferent paddocks: with nitrogen topdressing (urea; group 1), organic fertilizer (group 2) or without fertilizer (group 3; control). Nitrate accumulation in forage was evaluated by the diphenylamine test. After food fasting of 12 h, nine bovine were randomly allocated to one of the experimental groups and fed with fresh forage (ad libitum) from respective pad­dock. In different time points from beginning of pasture intake (0, 2, 4, 6 and 9 h) heart rate and respiratory frequency were assessed, as well as mucous membrane color and behavioral changes. Blood samples from jugular vein into vials with and without anticoagulant were collected. From blood samples, serum nitrite levels, acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) enzyme activity were evaluated, as well as oxidative stress through the following param­eters: levels of nitrate/nitrite (NOx), thiobarbituric acid reactive substances (TBARS) and reactive oxygen species (ROS), beyond the antioxidant system by enzyme activity measurement of catalase (CAT) and superoxide dismutase (SOD). The diphenylamine test was positive to group 1 and 2, so that the pasture presented 3.16 mg/kg, 2.98 mg/kg and 1.67 mg/kg of nitrate for group 1, 2 and 3, respectively. In addition, cows from group 1 demonstrated increased (P < 0.05) nitrite levels in serum, compared to other groups, and greater heart rate after 9 h (P < 0.05). The AChE and BChE activity in group 1 showed significant increase (P < 0.05) at 4 and 6 h (AChE), and 4 and 9 h (BChE) compared to group 3. Also, NOx levels were lower at 6 and 9 h (P < 0.05) and at 9 h (P < 0.05) for animals of group 1 and 2, respectively, when compared to group 3. Furthermore, in the group 1 levels of ROS and TBARS were significantly higher (P < 0.05) after 2 and 4 h, and 6 and 9 h compared to other groups, respectively. The CAT activity increased significantly (P < 0.05) with 2 and 4 h of the experiment, but on the other hand, decreased at 6 and 9 h in group 1. Nevertheless, the animals from group 2 presented only a significant reduction in this enzyme activity at 9 h. Furthermore, SOD activity was reduced in animals of groups 1 (P < 0.05) at 4, 6 and 9 h, compared to other groups. Discussion: It was concluded that the nitrate and nitrite poisoning by pasture intake cultivated and fertilized with urea leads to increased levels of serum nitrite, as well as the cholinesterase activity and causes oxidative stress in cattle. It is conjectured that the cholinesterase activity and oxidative stress may assist in understanding the pathophysiology of changes caused by poisoning.Keywords: plant toxicology, poisoning, methemoglobin, cholinergic system, oxidative stress.

scholarly journals Melatonin attenuates ovarian ischemia reperfusion injury in rats by decreasing oxidative stress index and peroxynitrite

2020 ◽  
Vol 50 (6) ◽  
pp. 1513-1522
Author(s):  
Şenol KALYONCU ◽  
Bülent YILMAZ ◽  
Mustafa DEMİR ◽  
Meltem TUNCER ◽  
Zehra BOZDAĞ ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Reperfusion Injury ◽  
Ischemia Reperfusion Injury ◽  
Ischemia Reperfusion ◽  
Stress Index ◽  
Oxidative Stress Index ◽  
Group 6 ◽  
Group 3 ◽  
Group 2 ◽  
Group 1

Background/aim: To evaluate the protective effect of melatonin on ovarian ischemia reperfusion injury in a rat model. Materials and methods: Forty-eight rats were separated equally into 6 groups. Group 1: sham; Group 2: surgical control with 3-h bilateral ovarian torsion and detorsion; Group 3: intraperitoneal 5% ethanol (1 mL) just after detorsion (as melatonin was dissolved in ethanol); Group 4: 10 mg/kg intraperitoneal melatonin 30 min before 3-h torsion; Group 5:10 mg/kg intraperitoneal melatonin just after detorsion; Group 6:10 mg/kg intraperitoneal melatonin 30 min before torsion and just after detorsion. Both ovaries and blood samples were obtained 7 days after detorsion for histopathological and biochemical analysis.Results: In Group 1, serum levels of total oxidant status (TOS) (μmol H2O2 equivalent/g wet tissue)were significantly lower than in Group2 (P = 0.0023), while tissue TOS levels were lower than in Group 3 (P = 0.0030). Similarly, serum and tissue levels of peroxynitrite in Group 6were significantly lower than those ofGroup 2 (P = 0.0023 and P = 0.040, respectively). Moreover, serum oxidative stress index (OSI) (arbitrary unit) levels were significantly increased in Group 2 when compared to groups 1 and 6 (P = 0.0023 and P= 0.0016, respectively) and in Group 3 with respect to groups 1, 4, 5, and 6 (P = 0.0023, P = 0.0026, P = 0.0008, and P = 0.0011, respectively). Furthermore, there was a significant decrease in histopathological scores including follicular degeneration, vascular congestion, hemorrhage, and inflammation in the melatonin and sham groups in comparison with control groups. Additionally, primordial follicle count was significantly higher in Group 6 than in Group 2 (P = 0.0002).Conclusion: Melatonin attenuates ischemia reperfusion damage in a rat torsion/detorsion model by improving histopathological and biochemical findings including OSI and peroxynitrite.

scholarly journals Xenogeneic and Allogeneic Mesenchymal Stem Cells Effectively Protect the Lung Against Ischemia-reperfusion Injury Through Downregulating the Inflammatory, Oxidative Stress, and Autophagic Signaling Pathways in Rat

2020 ◽  
Vol 29 ◽  
pp. 096368972095414
Author(s):  
Kun-Chen Lin ◽  
Jun-Ning Yeh ◽  
Yi-Ling Chen ◽  
John Y. Chiang ◽  
Pei-Hsun Sung ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Signaling Pathways ◽  
Ischemia Reperfusion ◽  
Inflammatory Cells ◽  
Damage Cell ◽  
Group 4 ◽  
Flow Cytometric ◽  
Group 3 ◽  
Group 2 ◽  
Group 1

This study tested the hypothesis that both allogenic adipose-derived mesenchymal stem cells (ADMSCs) and human inducible pluripotent stem cell-derived MSCs (iPS-MSCs) offered a comparable effect for protecting the lung against ischemia-reperfusion (IR) injury in rodent through downregulating the inflammatory, oxidative stress, and autophagic signaling pathways. Adult male Sprague–Dawley rats ( n = 32) were categorized into group 1 (sham-operated control), group 2 (IRI), group 3 [IRI + ADMSCs (1.0 × 106 cells)/tail-vein administration at 0.5/18/36 h after IR], and group 4 [IRI + iPS-MSCs (1.0 × 106 cells)/tail-vein administration at 0.5/18/36 h after IR], and lungs were harvested at 72 h after IR procedure. In vitro study demonstrated that protein expressions of three signaling pathways in inflammation (TLR4/MyD88/TAK1/IKK/I-κB/NF-κB/Cox-2/TNF-α/IL-1ß), mitochondrial damage/cell apoptosis (cytochrome C/cyclophilin D/DRP1/ASK1/APAF-1/mitochondrial-Bax/caspase3/8/9), and autophagy/cell death (ULK1/beclin-1/Atg5,7,12, ratio of LCB3-II/LC3B-I, p-AKT/m-TOR) were significantly higher in lung epithelial cells + 6h hypoxia as compared with the control, and those were significantly reversed by iPS-MSC treatment (all P < 0.001). Flow cytometric analysis revealed that percentages of the inflammatory cells in bronchioalveolar lavage fluid and circulation, and immune cells in circulation/spleen as well as circulatory early and late apoptotic cells were highest in group 2, lowest in group 1, and significantly higher in group 3 than in group 4 (all P < 0.0001). Microscopy showed the lung injury score and numbers of inflammatory cells and Western blot analysis showed the signaling pathways of inflammation, mitochondrial damage/cell apoptosis, autophagy, and oxidative stress exhibited an identical pattern of flow cytometric results among the four groups (all P < 0.0001). Both xenogeneic and allogenic MSCs protected the lung against IRI via suppressing the inflammatory, oxidative stress, and autophagic signaling.

scholarly journals Laminarin Attenuates Ultraviolet-Induced Skin Damage by Reducing Superoxide Anion Levels and Increasing Endogenous Antioxidants in the Dorsal Skin of Mice

Marine Drugs ◽  
2020 ◽  
Vol 18 (7) ◽  
pp. 345 ◽  
Author(s):  
Ji Hyeon Ahn ◽  
Dae Won Kim ◽  
Cheol Woo Park ◽  
Bora Kim ◽  
Hyejin Sim ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Superoxide Anion ◽  
Collagen Fibers ◽  
Ultraviolet B ◽  
Control Group ◽  
Dorsal Skin ◽  
Skin Damage ◽  
Superoxide Anion Production ◽  
Uvb Exposure ◽  
Immunohistochemical Studies

A number of studies have demonstrated that marine carbohydrates display anti-oxidant, anti-melanogenic, and anti-aging activities in the skin. Laminarin (LA), a low-molecular-weight polysaccharide, is found in brown algae. The benefits of LA in ultraviolet B (UVB) induced photodamage of the skin have not been reported. The aim of this study was to investigate the effects of pre-treated LA on histopathological changes and oxidative damage in mouse dorsal skin on day 5, following repeated UVB exposure. Histopathology, Western blot analysis and immunohistochemical studies showed that epidermal thickness in the UVB group was significantly increased; however, the thickness in the UVB group treated with LA (LA/UVB group) was less compared with that of the UVB group. Collagen fibers in the dermis of the UVB group were significantly decreased and destroyed, whereas, in the LA/UVB group, the density of collagen fibers was significantly increased compared with that of the UVB group. Oxidative stress due to superoxide anion production measured via dihydroethidium fluorescence staining was dramatically increased in the UVB group, whereas in the LA/UVB group, the oxidative stress was significantly decreased. Expressions of SOD1, glutathione peroxidase and catalase were markedly reduced in the UVB group, whereas in the LA/UVB group, they were significantly higher along with SOD2 than in the control group. Taken together, our results indicate that LA pretreatment prevents or attenuates skin damage, by decreasing oxidative stress and increasing antioxidant enzymes in mouse dorsal skin.

scholarly journals Topical Application of Aronia melanocarpa Extract Rich in Chlorogenic Acid and Rutin Reduces UVB-Induced Skin Damage via Attenuating Collagen Disruption in Mice

Molecules ◽  
2020 ◽  
Vol 25 (19) ◽  
pp. 4577
Author(s):  
Young Her ◽  
Tae-Kyeong Lee ◽  
Jong Dai Kim ◽  
Bora Kim ◽  
Hyejin Sim ◽  
...  
Keyword(s):  
Chlorogenic Acid ◽  
High Performance ◽  
Collagen Type ◽  
Collagen Type I ◽  
Ultraviolet B ◽  
Type I ◽  
Protective Effects ◽  
Dorsal Skin ◽  
Skin Damage ◽  
Aronia Melanocarpa

Aronia melanocarpa, a black chokeberry, contains high levels of phenolic acids and polyphenolic flavonoids and displays antioxidative and anti-inflammatory effects. Through high-performance liquid chromatography for extracts from Aronia melanocarpa, we discovered that the extract contained chlorogenic acid and rutin as major ingredients. In this study, we examined the protective effects of the extract against ultraviolet B- (UVB)-induced photodamage in the dorsal skin of institute of cancer research (ICR) mice. Their dorsal skin was exposed to UVB, thereafter; the extract was topically applied once a day for seven days. Photoprotective properties of the extract in the dorsal skin were investigated by clinical skin severity score for skin injury, hematoxylin and eosin staining for histopathology, Masson’s trichrome staining for collagens. In addition, we examined change in collagen type I and III, and matrix metalloproteinase (MMP)-1 and MMP-3 by immunohistochemistry. In the UVB-exposed mice treated with the extract, UVB-induced epidermal damage was significantly ameliorated, showing that epidermal thickness was moderated. In these mice, immunoreactivities of collagen type I and III were significantly increased, whereas immunoreactivities of MMP-1 and 3 were significantly decreased compared with those in the UVB-exposed mice. These results indicate that treatment with Aronia melanocarpa extract attenuates UV-induced photodamage by attenuating UVB-induced collagen disruption: these findings might be a result of the chlorogenic acid and rutin contained in the extract. Based on the current results, we suggest that Aronia melanocarpa can be a useful material for developing photoprotective adjuvant.

Topical formulation containing hesperidin methyl chalcone inhibits skin oxidative stress and inflammation induced by ultraviolet B irradiation

2016 ◽  
Vol 15 (4) ◽  
pp. 554-563 ◽  
Author(s):  
Renata M. Martinez ◽  
Felipe A. Pinho-Ribeiro ◽  
Vinicius S. Steffen ◽  
Carla V. Caviglione ◽  
Danilo Pala ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Ozone Depletion ◽  
Skin Diseases ◽  
Ultraviolet B ◽  
Topical Formulation ◽  
Uvb Irradiation ◽  
Skin Exposure ◽  
Ultraviolet B Irradiation

Skin exposure to UVB irradiation has increased significantly in recent years due to ozone depletion, and it represents the main cause of many skin diseases.

scholarly journals Effect of parenteral selenium administration on oxidative status of weaned piglets

2016 ◽  
Vol 85 (4) ◽  
pp. 377-386
Author(s):  
Martin Svoboda ◽  
Zdeněk Fajt ◽  
Jan Vašek ◽  
Jonáš Vaňhara ◽  
Martin Hostovský ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Sodium Selenite ◽  
Feed Consumption ◽  
Serum Concentrations ◽  
Weaned Piglets ◽  
Negative Effects ◽  
Group 3 ◽  
Group 2 ◽  
Positive Effect ◽  
Group 1

The aim of the study was to evaluate the effect of additional selenium injection after weaning on the selenium (Se) status of piglets and to find whether the selected dose would be appropriate with respect to the level of oxidative stress. Another goal was to compare the efficacy and safety of sodium selenite and selenopyran as selenium sources for parenteral administration to piglets. Altogether 30 piglets were divided equally into three groups. Piglets in group 1 were injected i.m. with sodium selenite, piglets in group 2 were injected with selenopyran. The dose was 0.42 mg Se/kg body weight for both groups. Piglets in group 3 were given only saline. As expected, the study revealed low Se serum concentrations in weaned piglets. The injection of sodium selenite increased Se serum concentrations but did not have a positive effect on the peroxidase activities. Administration of selenopyran did not influence Se concentrations and gluthation peroxidase activities. The selected dose did not have a significant impact on the level of the oxidative stress. The piglets receiving Se only from the feed achieved comparable gluthation peroxidase activities during the trial. It seems that despite initially low Se concentrations, the physiological requirements for gluthation peroxidase synthesis were met with the feed consumption as the only Se source. The results of the study are important because until now it was unclear whether the selected dose would have negative effects on the organism with respect to the induction of oxidative stress in piglets.

scholarly journals UVB irradiation of human platelet concentrates does not prevent HLA alloimmunization in recipients

Blood ◽  
1994 ◽  
Vol 84 (10) ◽  
pp. 3524-3531
Author(s):  
MA Grijzenhout ◽  
MI Aarts-Riemens ◽  
FR de Gruijl ◽  
H van Weelden ◽  
HC van Prooijen
Keyword(s):  
Cell Death ◽  
Hla Antigens ◽  
Ultraviolet B ◽  
Control Group ◽  
Unexpected Finding ◽  
Uvb Radiation ◽  
Platelet Concentrates ◽  
Uvb Irradiation ◽  
Hla Class I Antigens ◽  
Delayed Cell Death

Exposure of platelet concentrates (PCs) to ultraviolet B radiation (UVB) has been advocated as an alternative method for prevention of the onset of HLA sensitization in recipients. In this study, pooled PCs were irradiated in a Haemonetics UV irradiator (Haemonetics Corp, Braintree, MA) at a dose that did not induce platelet activation. The effect of UVB irradiation on prevention of primary HLA sensitization was evaluated in a prospective controlled clinical study performed in cardiac patients undergoing cardiopulmonary bypass. Patients were treated with filtered red blood cells and a single transfusion of either standard (control group) or UVB-irradiated (UVB group) pooled platelets prepared from 12 donors. Five of 39 patients in the control group and 6 of 62 patients in the UVB group developed allo-antibodies against HLA antigens, which is not significantly different (P = .62). This unexpected finding prompted us to check the efficacy of UVB irradiation. We determined UVB-specific DNA damage in cells by measuring the fluorescence from a labeled specific monoclonal antibody against thymine dimers. With this novel flow cytometer technique, we estimated in UVB-irradiated leukocytes in saline that a mean fluorescence intensity (MFI) of 47 +/- 2 arbitrary units (n = 6) correlated with abolition of alloreactivity in mixed lymphocyte cultures and delayed cell death (within 72 hours). MFI in leukocytes suspended in plasma and exposed to the clinical dose of UVB was sixfold higher (310 +/- 41 arbitrary units) and resulted in early cell death (within 24 hours). We hypothesize that this high level of UVB radiation induces fragmentation of the leukocytes. As a consequence, the poor results of UVB irradiation may be explained by the onset of HLA- alloimmunization induced by soluble donor HLA class I antigens processed and presented by host antigen-presenting cells.

scholarly journals Long-term effect of full-body pulsed electromagnetic field and exercise protocol in the treatment of men with osteopenia or osteoporosis: A randomized placebo-controlled trial

F1000Research ◽  
2021 ◽  
Vol 10 ◽  
pp. 649
Author(s):  
Anwar Ebid ◽  
Mohamed El-boshy ◽  
Shamekh El-Shamy ◽  
Ali Thabet ◽  
Mohamed Abedalla ◽  
...  
Keyword(s):  
Type I Collagen ◽  
Bone Markers ◽  
Whole Body ◽  
Type I ◽  
Exercise Protocol ◽  
Group 3 ◽  
Group 2 ◽  
Pulsed Electromagnetic ◽  
Group 1 ◽  
Full Body

Background: Osteoporosis is the most prevalent metabolic disease affecting bones. Objective: To investigate the long-term effect of pulsed electromagnetic field (PEMF) combined with exercise protocol on bone mineral density (BMD) and bone markers in men with osteopenia or osteoporosis. Methods: Ninety-five males with osteopenia or osteoporosis (mean age, 51.26 ± 2.41 years; mean height, 176 ± 2.02 cm; mean weight, 83.08 ± 2.60 kg; mean body–mass index (BMI), 26.08 ± 1.09 kg/m2) participated in the study, and they were randomly assigned to one of three groups: Group 1 received a full-body PEMF and exercise protocol (PEMF +EX), Group 2 received a placebo full-body PEMF and exercise protocol (PPEMF +EX), and Group 3 received a full-body PEMF alone (PEMF). PEMF was applied for the whole body using a full-body mat three times per week for 12 weeks, with an exercise protocol that includes flexibility, aerobic exercise, strengthening, weight-bearing, and balance exercises followed by whole-body vibration (WBV) training. Outcome measures include BMD of total hip and lumbar spine and bone markers [serum osteocalcin (s-OC), Serum amino-terminal cross-linking telopeptide of type I collagen (s-NTX), Serum carboxy-terminal cross-linking telopeptide of type I collagen (s-CTX), Parathyroid hormones (PTH), Bone-specific Alkaline Phosphatase (BSAP), and 25-hydroxy vitamin D (Vit D)]. Results: The BMD of total hip and lumbar spine was significantly increased post-treatment in all groups, and more so in Group 1 and Group 2 than Group 3. There was a significant difference in bone markers in all groups, more so in Group 1 and Group 2 than in Group 3. Conclusion: PEMF combined with exercise protocol exerts a potent role for treating OP, is more effective than exercise and PEMF alone for increasing BMD and enhancing bone formation, and suppresses bone-resorption markers after 12-weeks of treatment with the impact lasting up to 6 months.

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