Bone Health in Perimenopausal Women
Conditions
Keywords
Polycan, Bone metabolism, Osteocalcin, Deoxypyridinoline
Brief summary
Beta-glucans are polysaccharides consisting of glucose residue jointed by beta linkage. They are found at a high level in the cell wall of fungi, yeast, oat, barley, bacteria, as well as various mushroom. Studies have reported that extract of mushroom (Pleurotus eryngii) can prevent the bone loss caused by estrogen deficiency. Furthermore, polycan (a purified β-glucan from Aureobasidium pullulans) has been reported to exhibit osteoporosis preventing effects. However, no investigation has been conducted on the effect of polycan on bone health in perimenopausal women. Therefore, in this study, we investigated the effect of polycan on biochemical markers of bone metabolism in Korean perimenopausal women.
Interventions
polycan 150 mg/d for 12 weeks
Placebo 150mg/d for 12 weeks
Sponsors
Study design
Eligibility
Inclusion criteria
* They were required to have reduced bone density but no evidence of osteoporosis or osteopenia by Dual-emission X-ray absorptiometry (DEXA) scan (T ≥ -1.0 in the lumbar spine). * Perimenopausal women : aged 40-70
Exclusion criteria
* Women with a body mass index (BMI) \>30 kg/m2 or who were being treated with estrogens, corticosteroids, or bisphosphonates, or who had significant illness affecting bone metabolism were excluded
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Changes in DPD(Deoxypyridinoline) | 12weeks | DPD(Deoxypyridinoline) was measured in study visit 1(0 week) and visit 3(12 week). |
| Changes in OSC(Osteocalcin) | 12weeks | OSC(Osteocalcin) was measured in study visit 1(0 week) and visit 3(12 week). |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Changes in CTx(Collagen Type 1 Cross-linked C-telopeptide) | 12weeks | CTx(collagen type 1 cross-linked C-telopeptide) was measured in study visit 1(0 week) and visit 3(12 week). |
| Changes in bALP(Bone-specific Alkaline Phosphatase) | 12weeks | bALP(bone-specific alkaline phosphatase) was measured in study visit 1(0 week) and visit 3(12 week). |
| Changes in PTH(Parathyroid Hormone) | 12weeks | PTH(parathyroid hormone) was measured in study visit 1(0 week) and visit 3(12 week). |
Countries
South Korea
Participant flow
Recruitment details
Participants were recruited through local advertising and doctor referrals from hospital outpatients and general practice clinics.
Pre-assignment details
The criteria were an age from 40 to 70 years, They were required to have reduced bone density but no evidence of osteoporosis or osteopenia by Dual-emission X-ray absorptiometry (DEXA) scan (T ≥ -1.0 in the lumbar spine).
Participants by arm
| Arm | Count |
|---|---|
| Polycan Polycan 150mg for 12 weeks | 30 |
| Placebo Placebo 15mg for 12 weeks | 30 |
| Total | 60 |
Baseline characteristics
| Characteristic | Placebo | Polycan | Total |
|---|---|---|---|
| Age, Categorical <=18 years | 0 Participants | 0 Participants | 0 Participants |
| Age, Categorical >=65 years | 0 Participants | 0 Participants | 0 Participants |
| Age, Categorical Between 18 and 65 years | 30 Participants | 30 Participants | 60 Participants |
| Age Continuous | 52.9 years STANDARD_DEVIATION 5.8 | 52.8 years STANDARD_DEVIATION 6.3 | 52.8 years STANDARD_DEVIATION 5.8 |
| Region of Enrollment Korea, Republic of | 30 participants | 30 participants | 60 participants |
| Sex: Female, Male Female | 30 Participants | 30 Participants | 60 Participants |
| Sex: Female, Male Male | 0 Participants | 0 Participants | 0 Participants |
Adverse events
| Event type | EG000 affected / at risk | EG001 affected / at risk |
|---|---|---|
| deaths Total, all-cause mortality | — / — | — / — |
| other Total, other adverse events | 0 / 30 | 0 / 30 |
| serious Total, serious adverse events | 0 / 30 | 0 / 30 |
Outcome results
Changes in DPD(Deoxypyridinoline)
DPD(Deoxypyridinoline) was measured in study visit 1(0 week) and visit 3(12 week).
Time frame: 12weeks
Population: per protocol analysis
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Polycan | Changes in DPD(Deoxypyridinoline) | Pre | 7.1 nanoMolar DPD per milliMolar creatine | Standard Deviation 2.2 |
| Polycan | Changes in DPD(Deoxypyridinoline) | Post | 6.2 nanoMolar DPD per milliMolar creatine | Standard Deviation 2.1 |
| Placebo | Changes in DPD(Deoxypyridinoline) | Pre | 6.4 nanoMolar DPD per milliMolar creatine | Standard Deviation 1.7 |
| Placebo | Changes in DPD(Deoxypyridinoline) | Post | 5.6 nanoMolar DPD per milliMolar creatine | Standard Deviation 1.5 |
Changes in OSC(Osteocalcin)
OSC(Osteocalcin) was measured in study visit 1(0 week) and visit 3(12 week).
Time frame: 12weeks
Population: per protocol analysis
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Polycan | Changes in OSC(Osteocalcin) | Pre | 16.1 ng/mL | Standard Deviation 6.8 |
| Polycan | Changes in OSC(Osteocalcin) | Post | 19.8 ng/mL | Standard Deviation 7.7 |
| Placebo | Changes in OSC(Osteocalcin) | Pre | 14.2 ng/mL | Standard Deviation 5.2 |
| Placebo | Changes in OSC(Osteocalcin) | Post | 17.0 ng/mL | Standard Deviation 6.8 |
Changes in bALP(Bone-specific Alkaline Phosphatase)
bALP(bone-specific alkaline phosphatase) was measured in study visit 1(0 week) and visit 3(12 week).
Time frame: 12weeks
Population: per protocol analysis
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Polycan | Changes in bALP(Bone-specific Alkaline Phosphatase) | Pre | 31.8 U/L | Standard Deviation 11.3 |
| Polycan | Changes in bALP(Bone-specific Alkaline Phosphatase) | Post | 31.8 U/L | Standard Deviation 11.7 |
| Placebo | Changes in bALP(Bone-specific Alkaline Phosphatase) | Pre | 28.6 U/L | Standard Deviation 9.7 |
| Placebo | Changes in bALP(Bone-specific Alkaline Phosphatase) | Post | 29.8 U/L | Standard Deviation 9.5 |
Changes in CTx(Collagen Type 1 Cross-linked C-telopeptide)
CTx(collagen type 1 cross-linked C-telopeptide) was measured in study visit 1(0 week) and visit 3(12 week).
Time frame: 12weeks
Population: per protocol analysis
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Polycan | Changes in CTx(Collagen Type 1 Cross-linked C-telopeptide) | Pre | 344 µg/L | Standard Deviation 183 |
| Polycan | Changes in CTx(Collagen Type 1 Cross-linked C-telopeptide) | Post | 341 µg/L | Standard Deviation 171 |
| Placebo | Changes in CTx(Collagen Type 1 Cross-linked C-telopeptide) | Post | 301 µg/L | Standard Deviation 157 |
| Placebo | Changes in CTx(Collagen Type 1 Cross-linked C-telopeptide) | Pre | 314 µg/L | Standard Deviation 217 |
Changes in PTH(Parathyroid Hormone)
PTH(parathyroid hormone) was measured in study visit 1(0 week) and visit 3(12 week).
Time frame: 12weeks
Population: per protocol analysis
| Arm | Measure | Group | Value (MEAN) | Dispersion |
|---|---|---|---|---|
| Polycan | Changes in PTH(Parathyroid Hormone) | Pre | 32.8 pg/mL | Standard Deviation 10.4 |
| Polycan | Changes in PTH(Parathyroid Hormone) | Post | 35.0 pg/mL | Standard Deviation 9.3 |
| Placebo | Changes in PTH(Parathyroid Hormone) | Pre | 31.1 pg/mL | Standard Deviation 8.7 |
| Placebo | Changes in PTH(Parathyroid Hormone) | Post | 33.6 pg/mL | Standard Deviation 7.5 |