Page last updated: 2024-09-27
Patellofemoral Pain Syndrome
A syndrome characterized by retropatellar or peripatellar PAIN resulting from physical and biochemical changes in the patellofemoral joint. The pain is most prominent when ascending or descending stairs, squatting, or sitting with flexed knees. There is a lack of consensus on the etiology and treatment. The syndrome is often confused with (or accompanied by) CHONDROMALACIA PATELLAE, the latter describing a pathological condition of the CARTILAGE and not a syndrome.
Synonyms(1)
| Synonym |
|---|
| Patellofemoral Pain Syndrome |
Research
Studies (51)
| Timeframe | Studies, This Condition (%) | All Conditions % |
|---|
| pre-1990 | 0 (0.00) | 23.3326 |
| 1990's | 0 (0.00) | 12.5806 |
| 2000's | 9 (17.65) | 18.1394 |
| 2010's | 26 (50.98) | 28.8240 |
| 2020's | 16 (31.37) | 9.53 |
Protein Targets (58)
| Protein | Potency Measurements | Inhibition Measurements | Activation Measurements | Drugs |
|---|
| Luciferase | 1 | 0 | 0 | 1 |
| hypoxia-inducible factor 1 alpha subunit | 1 | 0 | 0 | 1 |
| progesterone receptor | 2 | 0 | 0 | 2 |
| estrogen-related nuclear receptor alpha | 2 | 0 | 0 | 2 |
| pregnane X nuclear receptor | 1 | 0 | 0 | 1 |
| estrogen nuclear receptor alpha | 2 | 0 | 0 | 2 |
| peroxisome proliferator activated receptor gamma | 1 | 0 | 0 | 1 |
| vitamin D (1,25- dihydroxyvitamin D3) receptor | 2 | 0 | 0 | 2 |
| Histone H2A.x | 2 | 0 | 0 | 2 |
| nuclear factor erythroid 2-related factor 2 isoform 1 | 2 | 0 | 0 | 2 |
| thioredoxin reductase | 1 | 0 | 0 | 1 |
| SMAD family member 2 | 1 | 0 | 0 | 1 |
| SMAD family member 3 | 1 | 0 | 0 | 1 |
| TDP1 protein | 1 | 0 | 0 | 1 |
| GLI family zinc finger 3 | 1 | 0 | 0 | 1 |
| AR protein | 1 | 0 | 0 | 1 |
| aldehyde dehydrogenase 1 family, member A1 | 1 | 0 | 0 | 1 |
| estrogen receptor 2 (ER beta) | 1 | 0 | 0 | 1 |
| glucocorticoid receptor [Homo sapiens] | 1 | 0 | 0 | 1 |
| retinoic acid nuclear receptor alpha variant 1 | 1 | 0 | 0 | 1 |
| glucocerebrosidase | 1 | 0 | 0 | 1 |
| peroxisome proliferator-activated receptor delta | 1 | 0 | 0 | 1 |
| nuclear factor of kappa light polypeptide gene enhancer in B-cells 1 (p105), isoform CRA_a | 1 | 0 | 0 | 1 |
| chromobox protein homolog 1 | 1 | 0 | 0 | 1 |
| thyroid hormone receptor beta isoform a | 1 | 0 | 0 | 1 |
| thyroid hormone receptor beta isoform 2 | 1 | 0 | 0 | 1 |
| geminin | 1 | 0 | 0 | 1 |
| Solute carrier family 22 member 1 | 0 | 1 | 0 | 1 |
| Rap guanine nucleotide exchange factor 3 | 1 | 0 | 0 | 1 |
| Interferon beta | 1 | 0 | 0 | 1 |
| Sex hormone-binding globulin | 0 | 0 | 1 | 1 |
| Corticosteroid-binding globulin | 0 | 1 | 0 | 1 |
| Androgen receptor | 0 | 2 | 0 | 2 |
| 5-hydroxytryptamine receptor 7 | 0 | 1 | 0 | 1 |
| [Pyruvate dehydrogenase (acetyl-transferring)] kinase isozyme 1, mitochondrial | 0 | 1 | 0 | 1 |
| [Pyruvate dehydrogenase (acetyl-transferring)] kinase isozyme 2, mitochondrial | 0 | 1 | 0 | 1 |
| [Pyruvate dehydrogenase (acetyl-transferring)] kinase isozyme 3, mitochondrial | 0 | 1 | 0 | 1 |
| [Pyruvate dehydrogenase (acetyl-transferring)] kinase isozyme 4, mitochondrial | 0 | 1 | 0 | 1 |
| Carbonic anhydrase | 0 | 1 | 0 | 1 |
| Eyes absent homolog 2 | 0 | 1 | 0 | 1 |
| Carbonic anhydrase 1 | 0 | 1 | 0 | 1 |
| Carbonic anhydrase 2 | 0 | 1 | 0 | 1 |
| Mu-type opioid receptor | 0 | 1 | 0 | 1 |
| Carbonic anhydrase | 0 | 1 | 0 | 1 |
| Carbonic anhydrase | 0 | 1 | 0 | 1 |
| RAR-related orphan receptor gamma | 1 | 0 | 0 | 1 |
| retinoid X nuclear receptor alpha | 1 | 0 | 0 | 1 |
| Chain A, Glycogen phosphorylase, liver form | 0 | 0 | 1 | 1 |
| Chain A, glycogen phosphorylase, liver form | 0 | 0 | 1 | 1 |
| Chain A, Glycogen phosphorylase, liver form | 0 | 0 | 1 | 1 |
| Chain A, Glycogen phosphorylase, liver form | 0 | 0 | 1 | 1 |
| Solute carrier family 22 member 6 | 0 | 0 | 0 | 1 |
| Solute carrier family 22 member 8 | 0 | 1 | 0 | 1 |
| Solute carrier family 2, facilitated glucose transporter member 9 | 0 | 1 | 1 | 2 |
| Guanine deaminase | 0 | 1 | 0 | 1 |
| phosphopantetheinyl transferase | 1 | 0 | 0 | 1 |
| vitamin D3 receptor isoform VDRA | 1 | 0 | 0 | 1 |
| DNA polymerase kappa isoform 1 | 1 | 0 | 0 | 1 |
| [prepared from compound, protein, and bioassay information from National Library of Medicine (NLM), extracted Dec-2023] |