Full-paper Knowledge Units · saved output

A six-month periodic fasting reduces microalbuminuria and improves metabolic control in patients with type 2 diabetes and diabetic nephropathy: a randomized controlled study

Qwen 3.8 27B FP8 · teacher · 1,000-word source chunks · guarded TranslateGemma 4B back-translation

Complete extractionLongest literal run: 13 words

Source title: A six-month periodic fasting reduces microalbuminuria and improves metabolic control in patients with type 2 diabetes and diabetic nephropathy: a randomized controlled study
Source authors: Alba Sulaj; Stefan Kopf; Ekaterina Von Rauchhaupt; Elisabeth Kliemank; Maik Brune; Zoltan Kender; Hannelore Bartl; Fabiola Garcia Cortizo; Katarina Klepac; Zhe Han; Varun Kumar; Valter Longo; Aurelio Teleman; Jürgen G Okun; Jakob Morgenstern; Thomas Fleming; Julia Szendroedi; Stephan Herzig; Peter P Nawroth
KU document title: A six-month periodic fasting reduces microalbuminuria and improves metabolic control in patients with type 2 diabetes and diabetic nephropathy: a randomized controlled study
KU document author field: Not populated by the original extractor
Style annotation: No dedicated document-style field in this schema
KU sequence: 5 of 5 expected chunks
Attribution provenance: Source registry metadata shown for attribution; not added to the QA context

This condition scores 87.5% (175/200) across all 20 evaluation papers. The example page does not imply that every claim in this individual paper is correct.

Gemma 4 12B IT · KU LoRA rank 128 · 500 words Gemma 4 12B IT · KU LoRA rank 128 · 1,000 words Gemma 4 E4B IT · KU LoRA rank 128 · 500 words Gemma 4 E4B IT · KU LoRA rank 128 · 1,000 words Qwen 3.8 27B FP8 · teacher · 500 words Qwen 3.8 27B FP8 · teacher · 1,000 words

Every saved KU, entity, attribute and relationship is shown below, in original chunk order. Navigation follows the source sequence rather than publication dates. Adjacent summaries are reader navigation, not lookahead supplied to extraction. All KUs were generated before the paraphrasing stage. Download complete factual KU JSON.

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KU 1 · source words 1–995

8 entities · 11 relationships · 0 preceding KUs available during extraction

Recorded context summary

A randomized controlled study evaluated the impact of a six-month fasting-mimicking diet on metabolic markers and albuminuria in patients with type 2 diabetes and diabetic nephropathy. The intervention group showed significant improvements in microalbuminuria and insulin resistance compared to a Mediterranean diet control group. These benefits were partially sustained at follow-up, while markers for DNA damage and dicarbonyl detoxification remained unchanged.

Fasting-mimicking diet (FMD)

method · ID: fasting_mimicking_diet_fmd

duration: six months
structure: five-day diet intervention followed by refeeding, repeated for six cycles

Relationships

reduces → microalbuminuria
magnitude
-30.3mg/g
p_value
<=0.05
reduces → HOMA-IR
magnitude
-3.8
p_value
<=0.05
reduces → suPAR
magnitude
-156.6pg/ml
p_value
<=0.05
no_effect_on → markers of dicarbonyl detoxification
no_effect_on → DNA-damage/repair markers

Mediterranean diet

method · ID: mediterranean_diet

role: control group intervention

Relationships

No relationships recorded.

Type 2 diabetes patients with diabetic nephropathy

other · ID: type_2_diabetes_patients_with_diabetic_nephropathy

sample_size: 40
baseline_hba1c: 7.8±0.2% [62.1±2.3 mmol/mol]
inclusion_criterion: increased albumin-to-creatinine ratio (ACR)
model_entity_type: population

Relationships

randomized_to → Fasting-mimicking diet (FMD)
n
21
randomized_to → Mediterranean diet
n
19

Albumin-to-creatinine ratio (ACR)

measurement · ID: albumin_to_creatinine_ratio_acr

role: primary endpoint

Relationships

measured_in → Type 2 diabetes patients with diabetic nephropathy

HOMA-IR

measurement · ID: homa_ir

role: secondary endpoint

Relationships

reduction_sustained_at_followup → 1.9
p_value
<=0.05

suPAR

measurement · ID: supar

role: secondary endpoint
biological_marker: senescence

Relationships

No relationships recorded.

University Hospital of Heidelberg

organization · ID: university_hospital_of_heidelberg

location: Heidelberg

Relationships

hosted_study → Randomized controlled study on FMD

Randomized controlled study on FMD

event · ID: randomized_controlled_study_on_fmd

registration_id: DRKS00014287
ethics_approval: S-682/2016
design: open randomized controlled study

Relationships

conducted_by → Alba Sulaj, Stefan Kopf, and colleagues

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Previous KU: Start of paper

Next KU: The study used a stratified random sampling method, based on Body Mass Index (BMI) and HbA1c levels, to assign patients to either a fasting-like diet (FMD) or a control group that followed a Mediterranean diet (M-diet). The FMD involved specific restrictions on calorie and macronutrient intake for five days of the month, while the M-diet involved a normal calorie intake. Primary and secondary endpoints focused on changes in albumin-to-creatinine ratio, metabolic markers, and safety outcomes, with statistical analysis performed on the intention-to-treat population.

KU 2 · source words 996–1,975

8 entities · 11 relationships · 1 preceding KUs available during extraction

Recorded context summary

The study used a stratified random sampling method, based on Body Mass Index (BMI) and HbA1c levels, to assign patients to either a fasting-like diet (FMD) or a control group that followed a Mediterranean diet (M-diet). The FMD involved specific restrictions on calorie and macronutrient intake for five days of the month, while the M-diet involved a normal calorie intake. Primary and secondary endpoints focused on changes in albumin-to-creatinine ratio, metabolic markers, and safety outcomes, with statistical analysis performed on the intention-to-treat population.

Randomization procedure

method · ID: randomization_procedure

software: Randomizer Version 2.0.3
stratification_factors: [ "BMI (cut-off 30.0 kg/m²)", "HbA1c (cut-off 7.0%)" ]

Relationships

assigned_participants_to → Fasting-Mimicking Diet (FMD) group
assigned_participants_to → Mediterranean Diet (M-Diet) group

Fasting-Mimicking Diet (FMD)

method · ID: fasting_mimicking_diet_fmd

duration_per_cycle: 5 consecutive days
cycle_frequency: approximately every 25 days
day_1_energy: 4600 kJ
day_1_macronutrients: 11% protein, 46% fat, 43% carbohydrates
days_2_to_5_energy: 3000 kJ per day
days_2_to_5_macronutrients: 9% protein, 44% fat, 47% carbohydrate
diet_type: plant-based

Relationships

mimics → fasting-like effects on glucose and ketone bodies
required_discontinuation_of → short-acting insulin
required_reduction_of → long-acting insulin by 50%
required_discontinuation_of → oral antidiabetic therapy

Mediterranean Diet (M-Diet)

method · ID: mediterranean_diet_m_diet

caloric_intake: no change compared to pre-study diet
adaptation_basis: Mediterranean Diet Score (MDS)

Relationships

served_as → control group intervention

Primary endpoint

measurement · ID: primary_endpoint

definition: absolute difference of change of ACR from baseline to after six diet cycles
comparison: between FMD and M-Diet groups

Relationships

includes_subgroup_analysis_for → micro-versus macroalbuminuria levels at baseline

Secondary endpoints

measurement · ID: secondary_endpoints

components: [ "absolute difference of change of ACR after three diet cycles", "absolute difference of change after three and six diet cycles of HOMA-IR", "plasma MG-H1", "plasma MG", "Glo-1 activity", "expression of pGlo-1 in WBC", "hydroxyacetone in RBC", "plasma AC profile", "yH2Ax expression in WBC", "suPAR" ]

Relationships

analyzed_using → hierarchical test procedure

Power calculation

method · ID: power_calculation

software: PASS 16.0.12
target_effect: A 30% decrease in ACR compared to the initial value.
assumed_standard_deviation: 30% for both groups
significance_level: two-sided alpha = 5%
power: at least 80%
estimated_dropout_rate: 15%
required_sample_size: 40 participants

Relationships

No relationships recorded.

Statistical analysis

method · ID: statistical_analysis

population: intention-to-treat
missing_data_handling: not imputed (available-case analysis)
software: R version 3.6.1
visualization_tools: [ "R core packages", "tiduverse", "pheatmap", "GraphPad Prism version 5.00" ]

Relationships

used_for_comparison → ANCOVA adjusted for age, sex, weight loss, and baseline value

Study enrollment

event · ID: study_enrollment

period: March 2018 to May 2020
total_randomized: 41 patients
FMD_group_size: 21
M_Diet_group_size: 20
discontinuations: 1 patient (M-Diet group, due to erysipelas)
completed_three_cycles: 38 patients (95%)
completed_study: 33 patients (83%)
follow_up_attendance: 31 patients (78%)
follow_up_time: 112±31 days

Relationships

main_reason_for_withdrawal → restrictions related to the Covid-19 pandemic

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Previous KU: A randomized controlled study evaluated the impact of a six-month fasting-mimicking diet on metabolic markers and albuminuria in patients with type 2 diabetes and diabetic nephropathy. The intervention group showed significant improvements in microalbuminuria and insulin resistance compared to a Mediterranean diet control group. These benefits were partially sustained at follow-up, while markers for DNA damage and dicarbonyl detoxification remained unchanged.

Next KU: The study reports that a six-month Fasting-Mimicking Diet (FMD) significantly reduced microalbuminuria and improved metabolic markers like HOMA-IR and urea levels in type 2 diabetes patients compared to a Mediterranean diet control. While FMD induced greater weight loss, body composition changes were not significantly different between groups, and most metabolic improvements were not sustained at follow-up. The intervention was well-tolerated with only mild to moderate adverse effects reported.

KU 3 · source words 1,976–2,958

8 entities · 21 relationships · 2 preceding KUs available during extraction

Recorded context summary

The study reports that a six-month Fasting-Mimicking Diet (FMD) significantly reduced microalbuminuria and improved metabolic markers like HOMA-IR and urea levels in type 2 diabetes patients compared to a Mediterranean diet control. While FMD induced greater weight loss, body composition changes were not significantly different between groups, and most metabolic improvements were not sustained at follow-up. The intervention was well-tolerated with only mild to moderate adverse effects reported.

Fasting-Mimicking Diet (FMD)

method · ID: fasting_mimicking_diet_fmd

duration: six months
structure: five days of restriction monthly

Relationships

reduced → microalbuminuria
magnitude
54% reduction in subgroup
p_value
<=0.05
reduced → urea levels
change_after_3_cycles
-11.8mg/dl
change_after_6_cycles
-17.9mg/dl
improved → eGFR based on cystatin C
difference_of_change_after_6_cycles
8.3ml/min/1.73m²
p_value
<=0.05
reduced → suPAR
change_after_3_cycles
-214.8pg/ml
change_after_6_cycles
-156.6pg/ml
reduced → HbA1c
reduction_after_6_cycles
17%
absolute_change
-1.1%
reduced → HOMA-IR
reduction_in_non_insulin_treated
60%
absolute_change
-3.8
caused_weight_loss → participants
after_3_cycles
-5.6kg (-5.9%)
after_6_cycles
-7.2kg (-7.5%)
reduced → plasma MG-H1
reduction_after_3_cycles
62%
tolerated_by → participants
adverse_event_rate
71-95% reported no adverse effects
common_symptoms
weakness, muscle pain, dizziness, headache
severity
grade 1 or 2 only

Mediterranean Diet (M-Diet)

method · ID: mediterranean_diet_m_diet

role: control group

Relationships

caused_weight_loss → participants
after_3_cycles
-0.7kg (-0.8%)
after_6_cycles
-1.1kg (-1.2%)

Albumin-to-creatinine ratio (ACR)

measurement · ID: albumin_to_creatinine_ratio_acr

No attributes recorded.

Relationships

difference_of_change_all_patients_6_cycles → 110.3mg/g
p_value
0.45
difference_of_change_microalbuminuria_6_cycles → -30.3mg/g
p_value
<=0.05
difference_of_change_macroalbuminuria_6_cycles → 434.0mg/g
p_value
0.23
difference_of_change_all_patients_3_cycles → -62.5mg/g
p_value
0.45
difference_of_change_microalbuminuria_3_cycles → -23.7mg/g
p_value
<=0.05
difference_of_change_macroalbuminuria_3_cycles → -176.2mg/g
p_value
0.47

HOMA-IR

measurement · ID: homa_ir

No attributes recorded.

Relationships

sustained_reduction_at_follow_up → -1.9
p_value
<=0.05

Body composition

measurement · ID: body_composition

No attributes recorded.

Relationships

no_significant_change_between_groups → fat and fat-free mass
condition
adjusted for weight loss

Plasma MG-H1

measurement · ID: plasma_mg_h1

No attributes recorded.

Relationships

no_association_with → change in ACR

Acetylcarnitine (C2)

measurement · ID: acetylcarnitine_c2

No attributes recorded.

Relationships

increased_in → responders
definition_of_responder
at least 30% improvement in ACR
timing
after three diet cycles

Baseline ACR levels

measurement · ID: baseline_acr_levels

No attributes recorded.

Relationships

lower_in_responders → FMD and M-Diet groups
fmd_responders_median
85.7mg/g
fmd_non_responders_median
271mg/g
mdiet_responders_median
55.5mg/g
mdiet_non_responders_median
563.0mg/g

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Previous KU: The study used a stratified random sampling method, based on Body Mass Index (BMI) and HbA1c levels, to assign patients to either a fasting-like diet (FMD) or a control group that followed a Mediterranean diet (M-diet). The FMD involved specific restrictions on calorie and macronutrient intake for five days of the month, while the M-diet involved a normal calorie intake. Primary and secondary endpoints focused on changes in albumin-to-creatinine ratio, metabolic markers, and safety outcomes, with statistical analysis performed on the intention-to-treat population.

Next KU: The study reports that hypoglycemic episodes and subjective health status did not differ between the FMD and M-Diet groups, while FMD participants required less antihyperglycemic and antihypertensive medication. Blood ketones increased significantly in the FMD group, and the diet reduced albuminuria specifically in patients with microalbuminuria, an effect comparable to SGLT-2 inhibitors but absent in those with macroalbuminuria. The discussion attributes these effects to shifts in fatty acid oxidation and ketogenesis, noting that metabolic improvements were largely reversed after refeeding.

KU 4 · source words 2,959–3,938

11 entities · 28 relationships · 3 preceding KUs available during extraction

Recorded context summary

The study reports that hypoglycemic episodes and subjective health status did not differ between the FMD and M-Diet groups, while FMD participants required less antihyperglycemic and antihypertensive medication. Blood ketones increased significantly in the FMD group, and the diet reduced albuminuria specifically in patients with microalbuminuria, an effect comparable to SGLT-2 inhibitors but absent in those with macroalbuminuria. The discussion attributes these effects to shifts in fatty acid oxidation and ketogenesis, noting that metabolic improvements were largely reversed after refeeding.

Hypoglycemic episodes

other · ID: hypoglycemic_episodes

grade_1_frequency_FMD: 10%
grade_1_frequency_M_Diet: 11%
grade_2_frequency_FMD: 5%
grade_2_frequency_M_Diet: 11%
model_entity_type: clinical_event

Relationships

no_significant_difference_between → FMD and M-Diet groups

Antihyperglycemic medication

other · ID: antihyperglycemic_medication

model_entity_type: medical_intervention

Relationships

reduced_in_percent_FMD_after_3_cycles → 57%
reduced_in_percent_M_Diet_after_3_cycles → 32%
increased_in_percent_M_Diet_after_3_cycles → 5%
reduced_in_percent_FMD_after_6_cycles_vs_baseline → 67%
increased_in_percent_M_Diet_after_6_cycles_vs_baseline → 21%

Antihypertensive medication

other · ID: antihypertensive_medication

model_entity_type: medical_intervention

Relationships

reduced_in_percent_FMD_after_3_and_6_cycles → 10%
reduced_in_percent_M_Diet_after_3_and_6_cycles → 5%
increased_in_percent_M_Diet_after_3_cycles → 5%
increased_in_percent_M_Diet_after_6_cycles → 10%

Blood ketones

other · ID: blood_ketones

FMD_increase_after_3_cycles: 3-fold
FMD_value_after_3_cycles: 0.50 mmol [0.32, 0.68]
FMD_value_after_6_cycles: 0.50 mmol [0.25, 0.75]
p_value: <=0.001
model_entity_type: biomarker

Relationships

increased_in → FMD group

MDS

measurement · ID: mds

M_Diet_value_after_3_cycles: 6.1 [5.5, 6.7]
M_Diet_value_after_6_cycles: 6.1 [5.4, 6.7]

Relationships

indicates → good compliance

Fasting-Mimicking Diet (FMD)

method · ID: fasting_mimicking_diet_fmd

safety_status: safe and well tolerated
effect_on_macroalbuminuria: no difference in ACR

Relationships

reduces → ACR in patients with microalbuminuria
improves → glycemic and blood pressure control
leads_to_sustained_improvement_of → HOMA-IR
effect_comparable_to → SGLT-2 inhibitors
induces → mild ketogenesis

SGLT-2 inhibitors

other · ID: sglt_2_inhibitors

model_entity_type: medical_intervention

Relationships

reduce → microalbuminuria
orchestrate_nephroprotective_effects_via → induction of mild ketogenesis

Acetylcarnitine

other · ID: acetylcarnitine

model_entity_type: biomarker

Relationships

discriminates → responders and non-responders regarding ACR improvement
increase_attributed_to → activation of lipolysis
potential_role → substrate for renal metabolism

Glycine

other · ID: glycine

model_entity_type: biomarker

Relationships

increased_in → responders
associated_with → protective effects on renal tubular injury
may_enhance → Glo-1 function

suPAR

other · ID: supar

classification: Indicator of accelerated aging and senescence
model_entity_type: biomarker

Relationships

shows_transient_reduction_during → FMD
increases_rapidly_after → termination of FMD

MG-H1

other · ID: mg_h1

classification: dicarbonyl-derived marker
model_entity_type: biomarker

Relationships

shows_transient_reduction_during → FMD

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Previous KU: The study reports that a six-month Fasting-Mimicking Diet (FMD) significantly reduced microalbuminuria and improved metabolic markers like HOMA-IR and urea levels in type 2 diabetes patients compared to a Mediterranean diet control. While FMD induced greater weight loss, body composition changes were not significantly different between groups, and most metabolic improvements were not sustained at follow-up. The intervention was well-tolerated with only mild to moderate adverse effects reported.

Next KU: The study concludes that while FMD reduced microalbuminuria and improved metabolic markers, it did not activate specific defense pathways for nephropathy reversal, suggesting longer intervention periods may be required. Limitations include the caloric restriction in the FMD group compared to the isocaloric control, though statistical adjustments were made for weight loss. The authors point out that the lack of kidney biopsies has made it difficult to study the metabolism of kidney cells, and that the small sample size necessitates larger studies in the future.

KU 5 · source words 3,939–4,701

6 entities · 16 relationships · 4 preceding KUs available during extraction

Recorded context summary

The study concludes that while FMD reduced microalbuminuria and improved metabolic markers, it did not activate specific defense pathways for nephropathy reversal, suggesting longer intervention periods may be required. Limitations include the caloric restriction in the FMD group compared to the isocaloric control, though statistical adjustments were made for weight loss. The authors point out that the lack of kidney biopsies has made it difficult to study the metabolism of kidney cells, and that the small sample size necessitates larger studies in the future.

Fasting-Mimicking Diet (FMD)

method · ID: fasting_mimicking_diet_fmd

intervention_duration: six cycles
caloric_status: caloric restriction
clinical_integration: In addition to the current guidelines, when used in conjunction with intensive diabetes management.

Relationships

reduced → microalbuminuria in type 2 diabetes patients
improved → glycemic and blood pressure control
reduced → insulin resistance
adjustment
adjusted for weight loss
did_not_activate → defense pathways for nephropathy control
suggested_longer_period_needed_for → nephropathy reversal

Mediterranean Diet (M-Diet)

method · ID: mediterranean_diet_m_diet

caloric_status: isocaloric
weight_loss_observation: mild weight loss

Relationships

served_as_control_for → Fasting-Mimicking Diet (FMD)

Microalbuminuria

other · ID: microalbuminuria

baseline_significance: predictor of diabetic nephropathy development in type 2 diabetes
model_entity_type: condition

Relationships

reduced_by → Fasting-Mimicking Diet (FMD)
subgroup
patients with microalbuminuria
relapsed_after → six FMD cycles

MG-H1

measurement · ID: mg_h1

No attributes recorded.

Relationships

reduced_after → three FMD cycles
not_reduced_after → six FMD cycles
suggests → sustained redirection of metabolism rather than just reduced energy intake

Study Limitations

concept · ID: study_limitations

statistical_adjustment: correction for weight loss applied to endpoint analyses
sample_size: small
missing_data: kidney biopsies not collected

Relationships

includes → caloric restriction in FMD vs isocaloric control
includes → lack of renal cell metabolism exploration
requires_future_studies_in → larger cohorts for generalizability

Intensive Medical Control

method · ID: intensive_medical_control

safety_outcome: no severe hypoglycemia or hypotension reported
glycemia_and_bp_control: strictly controlled with comparable values between groups

Relationships

characterizes → study design
highlights → complexity of fasting intervention in type 2 diabetes

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  ]
}

Previous KU: The study reports that hypoglycemic episodes and subjective health status did not differ between the FMD and M-Diet groups, while FMD participants required less antihyperglycemic and antihypertensive medication. Blood ketones increased significantly in the FMD group, and the diet reduced albuminuria specifically in patients with microalbuminuria, an effect comparable to SGLT-2 inhibitors but absent in those with macroalbuminuria. The discussion attributes these effects to shifts in fatty acid oxidation and ketogenesis, noting that metabolic improvements were largely reversed after refeeding.

Next KU: End of paper