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Abbreviation: PPD
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Long Form No. Long Form Research Area Co-occurring Abbreviation PubMed/MEDLINE Info. (Year, Title)
purified protein derivative
(1868 times)
Allergy and Immunology
(728 times)
TB (275 times)
BCG (219 times)
PHA (150 times)
1957 Induced immediated hypersensitivity to purified protein derivative tuberculin (PPD).
postpartum depression
(1151 times)
Psychiatry
(279 times)
EPDS (257 times)
CI (60 times)
OR (40 times)
1984 Postpartum depression.
probing pocket depth
(940 times)
Dentistry
(618 times)
CAL (438 times)
BOP (302 times)
PI (222 times)
1986 Clinical effects on chronic periodontitis of a simplified system of oral hygiene including subgingival pulsated jet irrigation with chlorhexidine.
p-phenylenediamine
(496 times)
Dermatology
(179 times)
ACD (21 times)
BB (10 times)
PTD (9 times)
1961 [The p-phenylenediamine (PPD)-oxidase test as a laboratory method for the diagnosis of hyperthyreosis].
periodontal probing depth
(182 times)
Dentistry
(109 times)
CAL (89 times)
BOP (72 times)
PI (38 times)
1993 Postoperative bleeding tendency as a risk factor in Actinobacillus actinomycetemcomitans-associated periodontitis.
pocket probing depth
(179 times)
Dentistry
(136 times)
BOP (68 times)
CAL (66 times)
PI (38 times)
1990 An association between long-term non-steroidal anti-inflammatory drug therapy and the severity of periodontal disease.
protopanaxadiol
(110 times)
Pharmacology
(22 times)
PPT (48 times)
CK (13 times)
UGT (6 times)
1991 Mechanism of action of ginsenoside Rh2: uptake and metabolism of ginsenoside Rh2 by cultured B16 melanoma cells.
paired-pulse depression
(95 times)
Neurology
(59 times)
PPF (21 times)
IPSCs (11 times)
EPSCs (10 times)
1992 [Observation of paired-pulse depression in CA1 region of hippocampal slices from coriaria lactone-kindled rats].
20(S)-protopanaxadiol
(85 times)
Pharmacology
(18 times)
PPT (12 times)
CK (5 times)
AUC (3 times)
2005 High performance liquid chromatographic-mass spectrometric determination of ginsenoside Rg3 and its metabolites in rat plasma using solid-phase extraction for pharmacokinetic studies.
10  proximal pars distalis
(61 times)
Endocrinology
(28 times)
RPD (32 times)
PI (25 times)
GH (15 times)
1976 Changes in the cells of the adenohypophysis associated with the diadromous migration of the threespine stickleback, Gasterosteus aculeatus L.
11  preprodynorphin
(57 times)
Neurology
(30 times)
PPE (29 times)
EA (5 times)
NAc (5 times)
1991 Localization and ontogeny of cells expressing preprodynorphin mRNA in the rat cerebral cortex.
12  postpartum day
(47 times)
Toxicology
(11 times)
GD (6 times)
MPOA (5 times)
OT (4 times)
1981 Effects of ergocryptine on plasma prolactin, luteinizing hormone, and progesterone in the periparturient sow.
13  purified protein derivative of Mycobacterium tuberculosis
(44 times)
Allergy and Immunology
(27 times)
DTH (6 times)
PBMC (6 times)
BCG (5 times)
1976 The status of tuberculin skin testing at the Pahlavi University Medical Centre.
14  pigmented purpuric dermatosis
(43 times)
Dermatology
(28 times)
GPPD (3 times)
MF (3 times)
PLC (2 times)
1999 Pigmented purpuric dermatosis in a young male.
15  Progressive pseudorheumatoid dysplasia
(35 times)
Genetics, Medical
(10 times)
WISP3 (7 times)
PCR (3 times)
WES (3 times)
1998 Genetic linkage of progressive pseudorheumatoid dysplasia to a 3-cM interval of chromosome 6q22.
16  preaxial polydactyly
(34 times)
Genetics, Medical
(10 times)
Shh (9 times)
ZRS (7 times)
qPCR (3 times)
2000 A novel candidate gene for mouse and human preaxial polydactyly with altered expression in limbs of Hemimelic extra-toes mutant mice.
17  peri-implant pocket depth
(26 times)
Dentistry
(21 times)
BOP (13 times)
PI (6 times)
VAS (6 times)
2004 Simultaneous or staged installation with guided bone augmentation of transmucosal titanium implants. A 3-year prospective cohort study.
18  postharvest physiological deterioration
(26 times)
Chemistry
(7 times)
ROS (5 times)
ABA (2 times)
APX (2 times)
2000 Hydrogen peroxide and flavan-3-ols in storage roots of cassava (Manihot esculenta crantz) during postharvest deterioration.
19  pads per day
(25 times)
Urology
(18 times)
SUI (9 times)
AUS (6 times)
MSIGS (5 times)
2006 A statistical comparison of pad numbers versus pad weights in the quantification of urinary incontinence.
20  protein purified derivative
(24 times)
Allergy and Immunology
(7 times)
BCG (2 times)
bTB (2 times)
MMR (2 times)
1974 Inhibition of leucocyte migration in man by the agarose plate technique using protein purified derivatives (PPD) from three different sources.
21  Perianal Paget's disease
(21 times)
Surgical Procedures, Operative
(4 times)
EMPD (7 times)
WLE (3 times)
APR (1 time)
1997 Long-term outcome of patients with perianal Paget's disease.
22  probing depth
(21 times)
Dentistry
(15 times)
BOP (9 times)
CAL (6 times)
GCF (3 times)
1996 A 2-year longitudinal study of elastase in human gingival crevicular fluid and periodontal attachment loss.
23  paranoid personality disorder
(20 times)
Psychiatry
(9 times)
SPD (3 times)
PDs (2 times)
APD (1 time)
1997 The comorbidity of alcoholism and personality disorders in a clinical population: prevalence rates and relation to alcohol typology variables.
24  persistent pigment darkening
(20 times)
Dermatology
(14 times)
UVA-PF (6 times)
SPF (5 times)
IPD (4 times)
2000 Accumulated p53 protein and UVA protection level of sunscreens.
25  Personal and Professional Development
(14 times)
Education
(9 times)
CYP (1 time)
DPHS (1 time)
EBM (1 time)
2003 Assessing students' personal and professional development using portfolios and interviews.
26  protracted phonological development
(14 times)
Speech-Language Pathology
(14 times)
TD (9 times)
WI (5 times)
MSWs (2 times)
2013 Comparing phonology of dyads of children with typical development and protracted development.
27  phenylpropanedione
(13 times)
Dentistry
(10 times)
CQ (12 times)
DC (5 times)
DSC (3 times)
2005 Molar extinction coefficients and the photon absorption efficiency of dental photoinitiators and light curing units.
28  PURPOSE: Postpartum depression
(13 times)
Obstetrics
(6 times)
EPDS (3 times)
AAP (1 time)
CBCL (1 time)
2008 Stepped care treatment of postpartum depression: a primary care-based management model.
29  primary peritoneal drainage
(12 times)
Pediatrics
(7 times)
NEC (10 times)
LAP (2 times)
PL (2 times)
1988 Peritoneal drainage for necrotizing enterocolitis.
30  primary psychiatric disorders
(12 times)
Psychiatry
(6 times)
bvFTD (4 times)
NfL (3 times)
CSF (2 times)
2010 A comparison of the symptoms and short-term clinical course in inpatients with substance-induced psychosis and primary psychosis.
31  predicted percentage dissatisfied
(11 times)
Environmental Health
(5 times)
PMV (9 times)
PET (2 times)
WBGT (2 times)
2012 Examination of thermal comfort in a hospital using PMV-PPD model.
32  1-phenyl-1,2-propanedione
(10 times)
Dentistry
(5 times)
CQ (5 times)
CEMA (2 times)
DC (2 times)
1999 Development of a new photoinitiation system for dental light-cure composite resins.
33  posterior polymorphous dystrophy
(10 times)
Ophthalmology
(8 times)
CHED (2 times)
ICE (2 times)
EIA (1 time)
1988 Comparison between posterior polymorphous dystrophy and congenital hereditary endothelial dystrophy of the cornea.
34  PEAPOD
(9 times)
Botany
(6 times)
bHLH (1 time)
bio (1 time)
Cas9 (1 time)
2006 PEAPOD regulates lamina size and curvature in Arabidopsis.
35  peak particle diameter
(8 times)
Vascular Diseases
(4 times)
LDL (5 times)
apo (2 times)
TG (2 times)
1997 Small, dense low-density lipoprotein particles as a predictor of the risk of ischemic heart disease in men. Prospective results from the Quebec Cardiovascular Study.
36  peak pupil dilation
(8 times)
Audiology
(7 times)
SNR (3 times)
GCA (2 times)
SNRs (2 times)
2017 Impact of stimulus-related factors and hearing impairment on listening effort as indicated by pupil dilation.
37  pocket depths
(8 times)
Dentistry
(4 times)
EMD (5 times)
GTR (5 times)
PAL (5 times)
1993 Comparative estimation of periodontal conditions by means of different index systems.
38  posterior probability density
(8 times)
Speech-Language Pathology
(6 times)
FGS (2 times)
GS (2 times)
SA (2 times)
2002 Quantifying uncertainty in geoacoustic inversion. I. A fast Gibbs sampler approach.
39  prenatal psychological distress
(8 times)
Psychiatry
(3 times)
CI (2 times)
ANC (1 time)
aOR (1 time)
2013 Child exposure to parental violence and psychological distress associated with delayed milestones.
40  1,2-propanediol
(7 times)
Occupational Medicine
(1 time)
2CPD (1 time)
3CPD (1 time)
BM (1 time)
1986 Acetone metabolism in humans during diabetic ketoacidosis.
41  Phytophotodermatitis
(7 times)
Dermatology
(6 times)
ICD (1 time)
2005 Experimental phytophotodermatitis.
42  Pacheco's parrot disease
(6 times)
Veterinary Medicine
(5 times)
PsHV (1 time)
PsHV1 (1 time)
PsiHV2 (1 time)
1993 An outbreak of Pacheco's parrot disease in a psittacine bird collection and an attempt to control it by vaccination.
43  permanent partial disability
(6 times)
Occupational Medicine
(3 times)
TTD (3 times)
RTW (2 times)
WC (2 times)
1980 [Legal disability rates for sequelae of hepatic injuries. 75 cases (author's transl)].
44  population pharmacodynamic
(6 times)
Pharmacology
(5 times)
CHB (1 time)
E max (1 time)
FOCE-INTER (1 time)
2010 Race differences: modeling the pharmacodynamics of rosuvastatin in Western and Asian hypercholesterolemia patients.
45  pseudoprotodioscin
(6 times)
Physiology
(1 time)
ERs (2 times)
APOE (1 time)
eNOS (1 time)
2010 Estrogen receptor mediates the effects of pseudoprotodiocsin on adipogenesis in 3T3-L1 cells.
46  phenylphosphorodiamidate
(5 times)
Biochemistry
(2 times)
AHA (2 times)
DTDP (1 time)
DTNB (1 time)
1991 Reactivity of the essential thiol of Klebsiella aerogenes urease. Effect of pH and ligands on thiol modification.
47  post-psychotic depression
(5 times)
Psychiatry
(4 times)
CDSS (1 time)
MDD (1 time)
1993 Post-psychotic depression in schizophrenia.
48  Postpartum depressive disorder
(5 times)
Psychiatry
(2 times)
EPDS-T (1 time)
HCs (1 time)
MDD (1 time)
2005 Screening postpartum depression with the Taiwanese version of the Edinburgh Postnatal Depression scale.
49  pour point depressant
(5 times)
Chemistry, Physical
(2 times)
AW (1 time)
EG (1 time)
EP (1 time)
2007 Theoretical study of the prohibited mechanism for ethylene/vinyl acetate co-polymers to the wax crystal growth.
50  preferred place of death
(5 times)
Palliative Care
(2 times)
CI (1 time)
OR (1 time)
2011 Opinions of patients with cancer on the relative importance of place of death in the context of a 'good death'.
51  prenatally protein-deprived
(5 times)
Nutritional Sciences
(2 times)
ADH (1 time)
AIB (1 time)
GD (1 time)
1976 Lipid absorption in the young of protein-deficient rats.
52  psychogenic polydipsia
(5 times)
Psychiatry
(2 times)
ASD (1 time)
CBT (1 time)
DM (1 time)
1991 The successful treatment of psychogenic polydipsia and water intoxication with propanolol. A case report.
53  PAZ/PIWI domain
(4 times)
Molecular Biology
(2 times)
NMD (1 time)
piRNA (1 time)
RISCs (1 time)
2004 Characterization of the interactions between mammalian PAZ PIWI domain proteins and Dicer.
54  peak power density
(4 times)
Biotechnology
(2 times)
ASR (1 time)
EC (1 time)
FC (1 time)
2013 Safety evaluation of femtosecond lentotomy on the porcine lens by optical measurement with 50-femtosecond laser pulses.
55  personal protective devices
(4 times)
Occupational Medicine
(1 time)
ALP (1 time)
GOT (1 time)
GPT (1 time)
1990 Adaptation to discomfort in personal protective devices: an example with safety helmets.
56  persons with Parkinson's disease
(4 times)
Physiology
(2 times)
PD (2 times)
PWS (2 times)
DGI (1 time)
2013 Verbal implicit sequence learning in persons who stutter and persons with Parkinson's disease.
57  pinned photodiode
(4 times)
Biosensing Techniques
(3 times)
CIS (2 times)
BSI (1 time)
CISs (1 time)
2017 Proton Radiation Effects on Dark Signal Distribution of PPD CMOS Image Sensors: Both TID and DDD Effects.
58  protein-purified derivate tuberculin
(4 times)
Pulmonary Medicine
(2 times)
BHL (1 time)
bTB (1 time)
HPLC (1 time)
1982 Hypersensitivity to human brain S-100 protein in chronic alcoholics.
59  pseudopregnant day
(4 times)
Toxicology
(3 times)
GD (3 times)
ACR (1 time)
DBTCl (1 time)
1999 Suppression of uterine decidualization as a cause of implantation failure induced by triphenyltin chloride in rats.
60  pulse phase duration
(4 times)
Science
(1 time)
DR (2 times)
PA (2 times)
AUC (1 time)
2020 A behavioral method to estimate charge integration efficiency in cochlear implant users.
61  Pulsed Plasma Deposition
(4 times)
Biocompatible Materials
(2 times)
UHMWPE (2 times)
AFM (1 time)
EFM (1 time)
2000 Enhancing hepatocyte adhesion by pulsed plasma deposition and polyethylene glycol coupling.
62  panaxadiol-type ginsenosides
(3 times)
Pharmacology
(1 time)
PPT (3 times)
CK (1 time)
UHPLC (1 time)
2007 Purification and characterization of new special ginsenosidase hydrolyzing multi-glycisides of protopanaxadiol ginsenosides, ginsenosidase type I.
63  PAPalpha/gamma-mediated RNA decay
(3 times)
Virology
(1 time)
KSHV (2 times)
ncRNAs (1 time)
NRDE2 (1 time)
2015 Canonical Poly(A) Polymerase Activity Promotes the Decay of a Wide Variety of Mammalian Nuclear RNAs.
64  Peucedanum praeruptorum Dunn
(3 times)
Pharmacology
(3 times)
BALF (3 times)
Ig (2 times)
CPPD (1 time)
2012 Attenuation of airway hyperreactivity and T helper cell type 2 responses by coumarins from Peucedanum praeruptorum Dunn in a murine model of allergic airway inflammation.
65  pheophorbidase
(3 times)
Biology
(1 time)
PyroPheid (2 times)
DFR (1 time)
GST (1 time)
2005 Characterization and cloning of the chlorophyll-degrading enzyme pheophorbidase from cotyledons of radish.
66  photoparoxysmal discharges
(3 times)
Neurology
(2 times)
IPS (1 time)
SW (1 time)
1988 Electroencephalographic manifestations of grand mal epilepsy in Africans: observation of relative rarity of interictal abnormalities.
67  Plant population density
(3 times)
Science
(2 times)
NUE (2 times)
NRE (1 time)
PFPN (1 time)
2007 Parameter optimization and field validation of the functional-structural model GREENLAB for maize at different population densities.
68  polyanion-polymer/detergent
(3 times)
Chemistry, Clinical
(2 times)
PEGME (3 times)
HDL-C (2 times)
CETP (1 time)
1997 Evaluation of two homogeneous methods for measuring high-density lipoprotein cholesterol.
69  posterior pancreaticoduodenal
(3 times)
General Surgery
(2 times)
APD (3 times)
SM (2 times)
CH (1 time)
1997 Practical grouping of positive lymph nodes in pancreatic head cancer treated by an extended pancreatectomy.
70  precursor preprodynorphin
(3 times)
Neurology
(3 times)
DREAM (1 time)
EAS (1 time)
VGLUT2 (1 time)
2008 Distinct responses of DREAM to electroacupuncture stimulation with different frequencies during physiological and inflammatory conditions in rats.
71  primary patellar dislocation
(3 times)
Orthopedics
(3 times)
KOOS (1 time)
MPFL (1 time)
2014 Comparison operative and conservative management for primary patellar dislocation: an up-to-date meta-analysis.
72  primary progressive dementia
(3 times)
Genetics, Medical
(2 times)
AD (3 times)
APOE (1 time)
RRi (1 time)
1994 Patterns of risk in first-degree relatives of patients with Alzheimer's disease.
73  primary progressive disease
(3 times)
Neoplasms
(2 times)
EFS (1 time)
ER (1 time)
GV (1 time)
2008 Poor outcome in adolescents with high-risk Hodgkin lymphoma.
74  Protein-protein docking
(3 times)
Biochemistry
(2 times)
IPPD (1 time)
2011 On the use of distance constraints in protein-protein docking computations.
75  2-phenylpyrrolidine
(2 times)
Chemistry
(1 time)
Py (1 time)
2009 A spectroscopic study of nicotine analogue 2-phenylpyrrolidine (PPD) using resonant two-photon ionization (R2PI), microwave, and 2D NMR techniques.
76  20(S)-protopanaxadiol-aglycone
(2 times)
Medicine
(1 time)
AR (2 times)
AR-Vs (2 times)
2012 20(S)-protopanaxadiol-aglycone downregulation of the full-length and splice variants of androgen receptor.
77  25-OH-PPD
(2 times)
Pharmacology
(1 time)
alpha-SMA (1 time)
BNP (1 time)
CTGF (1 time)
2016 Inhibitory effects and mechanism of 25-OH-PPD on glomerular mesangial cell proliferation induced by high glucose.
78  6-phenylpyridazin-3(2H)-one
(2 times)
Biology
(2 times)
DMSO (1 time)
PEG-400, 4.12 10-1 (1 time)
RMSD (1 time)
2019 Synthesis, Characterization and Solubility Determination of 6-Phenyl-pyridazin-3(2H)-one in Different Pharmaceutical Solvents.
79  p-phenylenediamine dihydrochloride
(2 times)
Mutagenesis
(1 time)
2,4-DAT (1 time)
COP (1 time)
JaCVAM (1 time)
1991 Studies on three structurally related phenylenediamines with the mouse micronucleus assay system.
80  paliperidone
(2 times)
Drug Design
(1 time)
LNC (1 time)
QbD (1 time)
2016 Paliperidone-Loaded Nanolipomer System for Sustained Delivery and Enhanced Intestinal Permeation: Superiority to Polymeric and Solid Lipid Nanoparticles.
81  Pancreas-preserving duodenectomy
(2 times)
General Surgery
(2 times)
LOS (1 time)
2015 Pancreas-preserving duodenectomy is a safe alternative to high-risk pancreatoduodenectomy for premalignant duodenal lesions.
82  parapapillary diverticula
(2 times)
Diagnostic Imaging
(1 time)
ERCP (2 times)
1990 [Low opening of the cystic duct and parapapillary diverticula--a new syndrome?].
83  parental problem drinking
(2 times)
Pediatrics
(2 times)
IA (1 time)
2012 Gender differences in associations between parental problem drinking and early adolescents' internet addiction.
84  partial pancreaticoduodenectomy
(2 times)
General Surgery
(2 times)
ELA (1 time)
PPPD (1 time)
QoL (1 time)
2002 Morbidity and mortality associated with pancreatogastrostomy and pancreatojejunostomy following partial pancreatoduodenectomy.
85  partial photoreactivation defect
(2 times)
Molecular Biology
(2 times)
CPDs (1 time)
UV (1 time)
2003 Isolation and genetic characterization of the Neurospora crassa REV1 and REV7 homologs: evidence for involvement in damage-induced mutagenesis.
86  paternal perinatal depression
(2 times)
Psychiatry
(2 times)
EPDS (1 time)
PRISMA (1 time)
RCT (1 time)
2020 Interventions for paternal perinatal depression: A systematic review.
87  PEG-peptide-DOPE
(2 times)
Biomedical Engineering
(1 time)
MEND (2 times)
MMP (2 times)
EPR (1 time)
2009 A pH-sensitive fusogenic peptide facilitates endosomal escape and greatly enhances the gene silencing of siRNA-containing nanoparticles in vitro and in vivo.
88  PEG-peptide-lipid ternary conjugate
(2 times)
Pharmacy
(1 time)
MMP (2 times)
CIDIQ (1 time)
MEND (1 time)
2007 [Development of a novel systemic gene delivery system for cancer therapy with a tumor-specific cleavable PEG-lipid].
89  Pentyl PABC-Doxaz
(2 times)
Chemistry
(2 times)
Dox (2 times)
CES2 (1 time)
hiCE (1 time)
2008 Identification of human intestinal carboxylesterase as the primary enzyme for activation of a doxazolidine carbamate prodrug.
90  peptides, preprodynorphin
(2 times)
Neurology
(1 time)
PPE (2 times)
1994 Acute and chronic cocaine administration differentially alters striatal opioid and nuclear transcription factor mRNAs.
91  per patient day
(2 times)
Neurology
(1 time)
CDSS (1 time)
NMs (1 time)
2002 Nurse managers' use of a computer decision support system. Differences in nursing labor costs per patient day.
92  percentage of decrease in permeability
(2 times)
Dentistry
(2 times)
OPT (1 time)
SB1 (1 time)
SYN (1 time)
2001 Sealing and dentin bond strength of adhesive systems in selected areas of perfused teeth.
93  percentage point difference
(2 times)
Reproductive Medicine
(1 time)
DEV (1 time)
IMCP (1 time)
PHQ-9 (1 time)
2013 Patient engagement programs for recognition and initial treatment of depression in primary care: a randomized trial.
94  percentage power distribution
(2 times)
Neurology
(1 time)
DF (1 time)
EGG (1 time)
EMG (1 time)
2016 Diabetic gastroparesis alters the biomagnetic signature of the gastric slow wave.
95  persistent perfusion defects
(2 times)
Medicine
(1 time)
CAD (1 time)
MCA (1 time)
MI (1 time)
1988 Incidence and prognostic significance of asymptomatic ischaemia in patients with sustained ventricular arrhythmias.
96  persisting posttraumatic distress
(2 times)
Military Medicine
(1 time)
HMS (2 times)
PTSD (2 times)
THS (1 time)
2011 Development and validation of a brief self-report measure of trauma exposure: the Trauma History Screen.
97  Personal Portable Devices
(2 times)
Medical Informatics
(2 times)
SGSN (1 time)
2009 Portable devices, sensors and networks: wireless personalized eHealth services.
98  pervasive developmental disorder
(2 times)
Audiology
(1 time)
ASDs (1 time)
DHH (1 time)
1998 Understanding the continuum of discrete-trial traditional behavioral to social-pragmatic developmental approaches in communication enhancement for young children with autism/PDD.
99  Philadelphia Police Department
(2 times)
General Surgery
(1 time)
EMS (1 time)
PFD (1 time)
PTOS (1 time)
2014 Rapid Assessment Medical Support (RAMS) for active shooter incidents.
100  photon path distribution
(2 times)
Biophysics
(1 time)
--- 2001 Photon path distribution and optical responses of turbid media: theoretical analysis based on the microscopic Beer-Lambert law.